1. CPC Sections
  2. CPC Section C
  3. CPC Class C09
  4. CPC Subclass C09K
Printable version [PDF]
Version: 2024.08
Loading Scheme...
CPC
COOPERATIVE PATENT CLASSIFICATION
​​
C09K
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE [2019-08]
NOTES

  • This subclass covers also the use of specified materials in general or their use for the applications not specially provided for elsewhere.
  • In this subclass, the following term is used with the meaning indicated:
    • "materials" includes compositions.
WARNINGS

  • The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups:
    C09K11/78-C09K11/86 covered by C09K 11/77 - C09K 11/7798, C09K 11/87, C09K 11/88, C09K 11/89
  • In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.
​
C09K 3/00
Materials not provided for elsewhere [2016-05]
NOTE

C09K 3/10
.
{Materials in mouldable or extrudable form} for sealing or packing joints or covers (filling pastes C09D 5/34) [2013-01]
C09K 3/1003
. .
{Pure inorganic mixtures} [2013-01]
C09K 3/1006
. .
{characterised by the chemical nature of one of its constituents} [2013-01]
C09K 3/1009
. . .
{Fluorinated polymers, e.g. PTFE} [2013-01]
C09K 3/1012
. . .
{Sulfur-containing polymers, e.g. polysulfides} [2013-01]
C09K 3/1015
. . .
{Polysaccharides or derivatives thereof} [2013-01]
C09K 3/1018
. . .
{Macromolecular compounds having one or more carbon-to-silicon linkages} [2013-01]
C09K 3/1021
. . .
{Polyurethanes or derivatives thereof} [2013-01]
C09K 3/1025
. .
{characterised by non-chemical features of one or more of its constituents} [2013-01]
C09K 3/1028
. . .
{Fibres} [2013-01]
C09K 3/1031
. .
{Sealing waxes, e.g. sealing letters, bottles, or the like} [2013-01]
C09K 2003/1034
. .
{Materials or components characterised by specific properties} [2013-01]
C09K 2003/1037
. . .
{Intumescent materials} [2013-01]
C09K 2003/104
. . .
{Water-swellable materials} [2013-01]
C09K 2003/1043
. . .
{Non water-swellable materials} [2013-01]
C09K 2003/1046
. . .
{Water-absorbing materials} [2013-01]
C09K 2003/105
. . .
{Water-soluble materials} [2013-01]
C09K 2003/1053
. . .
{Elastomeric materials} [2013-01]
C09K 2003/1056
. . .
{Moisture-curable materials} [2013-01]
C09K 2003/1059
. . .
{Heat-curable materials} [2013-01]
C09K 2003/1062
. . .
{UV-curable materials} [2013-01]
C09K 2003/1065
. . .
{Anaerobically hardenable materials} [2013-01]
C09K 2003/1068
. . .
{Crosslinkable materials} [2013-01]
C09K 2003/1071
. . .
{Thixotropic materials} [2013-01]
C09K 2003/1075
. . .
{Injection-mouldable materials} [2013-01]
C09K 2003/1078
. . .
{Fire-resistant, heat-resistant materials} [2013-01]
C09K 2003/1081
. . .
{Water-proofed materials} [2013-01]
C09K 2003/1084
. .
{Laminates} [2013-01]
C09K 2003/1087
. .
{Materials or components characterised by specific uses} [2013-01]
C09K 2003/109
. . .
{Crown caps} [2013-01]
C09K 2003/1093
. . .
{Cables} [2013-01]
C09K 2003/1096
. . .
{Cylinder head gaskets} [2013-01]
C09K 3/12
.
Materials for stopping leaks, e.g. in radiators, in tanks (filling pastes C09D 5/34) [2013-01]
​
C09K 3/14
.
Anti-slip materials; Abrasives {(products specifically intended for the fabrication of abrasive tools, blocks or papers, or for operations of the kind of sand-blasting and barrelling B24B 31/14, B24C 1/00; polishing compositions containing abrasive or grinding agents C09G 1/02; polishing of semi-conductors H01L; friction compositions for brakes or clutches F16D 69/02)} [2017-02]
NOTE

  • In this group, boron and silicon are considered as being metals. Likewise for associations of carbon with metals, e.g. carbides.
C09K 3/1409
. .
{Abrasive particles per se (preparation of diamond C01B 32/25)} [2017-08]
C09K 3/1418
. . .
{obtained by division of a mass agglomerated by sintering} [2013-01]
C09K 3/1427
. . .
{obtained by division of a mass agglomerated by melting, at least partially, e.g. with a binder} [2013-01]
C09K 3/1436
. .
{Composite particles, e.g. coated particles} [2013-01]
C09K 3/1445
. . .
{the coating consisting exclusively of metals} [2013-01]
C09K 3/1454
. .
{Abrasive powders, suspensions and pastes for polishing} [2013-01]
C09K 3/1463
. . .
{Aqueous liquid suspensions} [2013-01]
C09K 3/1472
. . .
{Non-aqueous liquid suspensions} [2013-01]
C09K 3/1481
. . .
{Pastes, optionally in the form of blocks or sticks} [2013-01]
C09K 3/149
. .
{Antislip compositions} [2013-01]
C09K 3/16
.
Anti-static materials [2013-01]
C09K 3/18
.
for application to surfaces to minimize adherence of ice, mist or water thereto (rendering particulate materials free flowing, in general, e.g. making them hydrophobic B01J 2/30); Thawing or antifreeze materials for application to surfaces (used in liquids for heat-transfer, heat-exchange or heat-storage or for the production of heat or cold other than by combustion, e.g. radiator liquids, C09K 5/00) [2013-01]
C09K 3/185
. .
{Thawing materials} [2013-01]
C09K 3/20
.
as substitutes for glycerol in its non-chemical uses, e.g. as a base in toiletry creams or ointments [2023-02]
C09K 3/22
.
for dust-laying or dust-absorbing [2013-01]
C09K 3/24
.
for simulating ice or snow [2013-01]
C09K 3/30
.
for aerosols (aerosol containers B65D 83/14) [2013-01]
C09K 3/32
.
for absorbing liquids to remove pollution, e.g. oil, gasoline, fat [2013-01]
C09K 5/00
Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion [2013-01]
C09K 5/02
.
Materials undergoing a change of physical state when used (C09K 5/16, C09K 5/20 take precedence) [2013-01]
​
C09K 5/04
. .
the change of state being from liquid to vapour or vice versa [2016-08]
NOTE

C09K 5/041
. . .
{for compression-type refrigeration systems} [2013-01]
C09K 5/042
. . . .
{comprising compounds containing carbon and hydrogen only} [2013-01]
C09K 5/044
. . . .
{comprising halogenated compounds} [2013-01]
C09K 5/045
. . . . .
{containing only fluorine as halogen} [2013-01]
C09K 5/047
. . .
{for absorption-type refrigeration systems} [2013-01]
C09K 5/048
. . .
{Boiling liquids as heat transfer materials} [2013-01]
C09K 5/06
. .
the change of state being from liquid to solid or vice versa [2016-08]
C09K 5/063
. . .
{Materials absorbing or liberating heat during crystallisation; Heat storage materials} [2013-01]
C09K 5/066
. . .
{Cooling mixtures; De-icing compositions} [2013-01]
C09K 5/08
.
Materials not undergoing a change of physical state when used (C09K 5/16, C09K 5/20 take precedence) [2020-05]
C09K 5/10
. .
Liquid materials [2013-01]
C09K 5/12
. . .
Molten materials, i.e. materials solid at room temperature, e.g. metals or salts [2013-01]
C09K 5/14
. .
Solid materials, e.g. powdery or granular [2013-01]
C09K 5/16
.
Materials undergoing chemical reactions when used [2013-01]
C09K 5/18
. .
Non-reversible chemical reactions [2020-05]
C09K 5/20
.
Antifreeze additives therefor, e.g. for radiator liquids (for application to surfaces C09K 3/18; inhibiting corrosion by liquids C23F 11/00) [2013-01]
​
C09K 8/00
Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations [2015-11]
NOTE

​
C09K 8/02
.
Well-drilling compositions [2015-11]
NOTE

  • In groups C09K 8/02-C09K 8/38, in the absence of an indication to the contrary, classification is made in the last appropriate place.
C09K 8/03
. .
Specific additives for general use in well-drilling compositions [2013-01]
C09K 8/032
. . .
{Inorganic additives} [2013-01]
C09K 8/035
. . .
Organic additives [2013-01]
C09K 8/04
. .
Aqueous well-drilling compositions [2013-01]
C09K 8/05
. . .
containing inorganic compounds only, e.g. mixtures of clay and salt [2013-01]
C09K 8/06
. . .
Clay-free compositions (containing inorganic compounds only C09K 8/05) [2013-01]
C09K 8/08
. . . .
containing natural organic compounds, e.g. polysaccharides, or derivatives thereof [2013-01]
C09K 8/10
. . . . .
Cellulose or derivatives thereof [2013-01]
C09K 8/12
. . . .
containing synthetic organic macromolecular compounds or their precursors [2013-01]
C09K 8/14
. . .
Clay-containing compositions (containing inorganic compounds C09K 8/05) [2013-01]
C09K 8/145
. . . .
{characterised by the composition of the clay} [2013-01]
C09K 8/16
. . . .
characterised by the inorganic compounds other than clay [2013-01]
C09K 8/18
. . . .
characterised by the organic compounds [2013-01]
C09K 8/20
. . . . .
Natural organic compounds or derivatives thereof, e.g. polysaccharides or lignin derivatives [2013-01]
C09K 8/203
. . . . . .
{Wood derivatives, e.g. lignosulfonate, tannin, tall oil, sulfite liquor} [2013-01]
C09K 8/206
. . . . . .
{Derivatives of other natural products, e.g. cellulose, starch, sugars} [2013-01]
C09K 8/22
. . . . .
Synthetic organic compounds [2013-01]
C09K 8/24
. . . . . .
Polymers [2013-01]
C09K 8/26
. . .
Oil-in-water emulsions [2013-01]
C09K 8/265
. . . .
{containing inorganic additives} [2013-01]
C09K 8/28
. . . .
containing organic additives [2013-01]
C09K 8/32
. .
Non-aqueous well-drilling compositions, e.g. oil-based [2013-01]
C09K 8/34
. . .
Organic liquids [2013-01]
C09K 8/36
. . .
Water-in-oil emulsions [2013-01]
C09K 8/38
. .
Gaseous or foamed well-drilling compositions [2013-01]
C09K 8/40
.
Spacer compositions, e.g. compositions used to separate well-drilling from cementing masses [2013-01]
C09K 8/42
.
Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells (compositions for plastering C09K 8/50) [2013-01]
C09K 8/422
. .
{specially adapted for sealing expandable pipes, e.g. of the non-hardening type} [2013-01]
C09K 8/424
. .
{using "spacer" compositions} [2013-01]
C09K 8/426
. .
{for plugging} [2013-01]
C09K 8/428
. .
{for squeeze cementing, e.g. for repairing} [2013-01]
C09K 8/44
. .
containing organic binders only [2013-01]
C09K 8/46
. .
containing inorganic binders, e.g. Portland cement [2013-01]
C09K 8/467
. . .
containing additives for specific purposes [2013-01]
C09K 8/473
. . . .
Density reducing additives, e.g. for obtaining foamed cement compositions [2013-01]
C09K 8/48
. . . .
Density increasing or weighting additives [2013-01]
C09K 8/487
. . . .
Fluid loss control additives; Additives for reducing or preventing circulation loss [2013-01]
C09K 8/493
. . . .
Additives for reducing or preventing gas migration [2013-01]
C09K 8/50
.
Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls (compositions for consolidating loose sand or the like around wells C09K 8/56) [2013-01]
C09K 8/501
. .
{using spacer compositions} [2013-01]
C09K 8/502
. .
Oil-based compositions [2013-01]
C09K 8/504
. .
Compositions based on water or polar solvents (C09K 8/502 takes precedence) [2013-01]
C09K 8/5045
. . .
{containing inorganic compounds} [2013-01]
C09K 8/506
. . .
containing organic compounds [2013-01]
C09K 8/508
. . . .
macromolecular compounds {(C09K 8/512 takes precedence)} [2013-01]
C09K 8/5083
. . . . .
{obtained by reactions only involving carbon-to-carbon unsaturated bonds} [2013-01]
C09K 8/5086
. . . . .
{obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds} [2013-01]
C09K 8/512
. . . . .
containing cross-linking agents [2013-01]
C09K 8/514
. . . . .
of natural origin, e.g. polysaccharides, cellulose (C09K 8/512 takes precedence) [2013-01]
C09K 8/516
. .
characterised by their form or by the form of their components, e.g. encapsulated material [2013-01]
C09K 8/518
. . .
Foams [2013-01]
C09K 8/52
.
Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning [2013-01]
C09K 8/524
. .
organic depositions, e.g. paraffins or asphaltenes [2013-01]
C09K 8/528
. .
inorganic depositions, e.g. sulfates or carbonates [2013-01]
C09K 8/532
. . .
Sulfur [2013-01]
C09K 8/536
. .
characterised by their form or by the form of their components, e.g. encapsulated material [2013-01]
C09K 8/54
.
Compositions for in situ inhibition of corrosion in boreholes or wells [2013-01]
C09K 8/56
.
Compositions for consolidating loose sand or the like around wells without excessively decreasing the permeability thereof (compositions for plastering borehole walls C09K 8/50; {Soil-conditioning materials or soil-stabilising materials in general C09K 17/00}) [2013-01]
C09K 8/565
. .
Oil-based compositions [2013-01]
C09K 8/57
. .
Compositions based on water or polar solvents (C09K 8/565 takes precedence) [2013-01]
C09K 8/572
. . .
{containing inorganic compounds} [2013-01]
C09K 8/575
. . .
containing organic compounds [2013-01]
C09K 8/5751
. . . .
{Macromolecular compounds (C09K 8/5756 takes precedence)} [2013-01]
C09K 8/5753
. . . . .
{obtained by reactions only involving carbon-to-carbon unsaturated bonds} [2013-01]
C09K 8/5755
. . . . .
{obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds} [2013-01]
C09K 8/5756
. . . . .
{containing cross-linking agents} [2013-01]
C09K 8/5758
. . . . .
{of natural origin, e.g. polysaccharides, cellulose (C09K 8/5756 takes precedence)} [2013-01]
C09K 8/58
.
Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids [2013-01]
C09K 8/582
. .
characterised by the use of bacteria [2013-01]
C09K 8/584
. .
characterised by the use of specific surfactants [2013-01]
C09K 8/588
. .
characterised by the use of specific polymers {(polymeric surfactants C09K 8/584)} [2013-01]
C09K 8/592
. .
Compositions used in combination with generated heat, e.g. by steam injection [2013-01]
C09K 8/594
. .
Compositions used in combination with injected gas {, e.g. CO2 orcarbonated gas}(C09K 8/592 takes precedence) [2016-08]
C09K 8/60
.
Compositions for stimulating production by acting on the underground formation [2013-01]
C09K 8/601
. .
{using spacer compositions} [2013-01]
C09K 8/602
. .
{containing surfactants} [2013-01]
C09K 8/604
. . .
{Polymeric surfactants} [2013-01]
C09K 8/605
. .
{containing biocides} [2013-01]
C09K 8/607
. .
{specially adapted for clay formations} [2013-01]
C09K 8/608
. . .
{Polymer compositions} [2013-01]
C09K 8/62
. .
Compositions for forming crevices or fractures [2013-01]
C09K 8/64
. . .
Oil-based compositions [2013-01]
C09K 8/66
. . .
Compositions based on water or polar solvents (C09K 8/64 takes precedence) [2013-01]
C09K 8/665
. . . .
{containing inorganic compounds (proppants C09K 8/80)} [2013-01]
​
C09K 8/68
. . . .
containing organic compounds [2013-01]
NOTE

  • Documents classified in this group are also classified in groups C09K 8/88 - C09K 8/905 according to the specific compositions
C09K 8/685
. . . . .
{containing cross-linking agents} [2013-01]
C09K 8/70
. . .
characterised by their form or by the form of their components, e.g. foams [2013-01]
C09K 8/703
. . . .
{Foams} [2013-01]
C09K 8/706
. . . .
{Encapsulated breakers} [2013-01]
C09K 8/72
. . .
Eroding chemicals, e.g. acids [2013-01]
C09K 8/725
. . . .
{Compositions containing polymers} [2013-01]
C09K 8/74
. . . .
combined with additives added for specific purposes [2013-01]
C09K 8/76
. . . . .
for preventing or reducing fluid loss [2013-01]
C09K 8/78
. . . . .
for preventing sealing [2013-01]
C09K 8/80
. .
Compositions for reinforcing fractures, e.g. compositions of proppants used to keep the fractures open [2013-01]
C09K 8/805
. . .
{Coated proppants} [2013-01]
C09K 8/82
. .
Oil-based compositions (C09K 8/64 takes precedence) [2013-01]
C09K 8/84
. .
Compositions based on water or polar solvents (C09K 8/66, C09K 8/82 take precedence) [2013-01]
C09K 8/845
. . .
{containing inorganic compounds} [2013-01]
C09K 8/86
. . .
containing organic compounds [2013-01]
C09K 8/88
. . . .
macromolecular compounds [2013-01]
C09K 8/882
. . . . .
{obtained by reactions only involving carbon-to-carbon unsaturated bonds} [2013-01]
C09K 8/885
. . . . .
{obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds} [2013-01]
C09K 8/887
. . . . .
{containing cross-linking agents} [2013-01]
C09K 8/90
. . . . .
of natural origin, e.g. polysaccharides, cellulose [2013-01]
C09K 8/905
. . . . . .
{Biopolymers} [2013-01]
C09K 8/92
. .
characterised by their form or by the form of their components, e.g. encapsulated material (C09K 8/70 takes precedence) [2013-01]
C09K 8/94
. . .
Foams [2013-01]
​
C09K 9/00
Tenebrescent materials, i.e. materials for which the range of wavelengths for energy absorption is changed as a result of excitation by some form of energy [2020-02]
NOTE

C09K 9/02
.
Organic tenebrescent materials [2013-01]
C09K 11/00
Luminescent, e.g. electroluminescent, chemiluminescent materials [2013-01]
C09K 11/01
.
Recovery of luminescent materials [2013-01]
C09K 11/02
.
Use of particular materials as binders, particle coatings or suspension media therefor [2013-01]
C09K 11/025
. .
{non-luminescent particle coatings or suspension media} [2021-01]
C09K 11/04
.
containing natural or artificial radioactive elements or unspecified radioactive elements [2013-01]
​
C09K 11/06
.
containing organic luminescent materials [2021-01]
NOTE

  • {When classifying in this group it is desirable to add the indexing codes of groups C09K 2211/00 - C09K 2211/188 relating to the chemical nature of the luminescent material}
C09K 11/07
. .
having chemically interreactive components, e.g. reactive chemiluminescent compositions [2013-01]
​​
C09K 11/08
.
containing inorganic luminescent materials [2016-05]
NOTES

  • In groups C09K 11/08 - C09K 11/897, in the absence of an indication to the contrary, classification of materials is made in the last appropriate place
  • { In this group, magnesium is considered as an alkaline earth metal }
WARNING

C09K 11/0805
. .
{Chalcogenides} [2013-01]
C09K 11/0811
. . .
{with zinc or cadmium} [2021-01]
C09K 11/0816
. . .
{with alkaline earth metals} [2013-01]
C09K 11/0822
. . .
{with rare earth metals} [2013-01]
C09K 11/0827
. .
{Halogenides (C09K 11/0805 takes precedence)} [2021-01]
C09K 11/0833
. . .
{with alkali or alkaline earth metals} [2013-01]
C09K 11/0838
. .
{Aluminates; Silicates} [2013-01]
C09K 11/0844
. .
{Germanates} [2013-01]
C09K 11/085
. .
{Vanadates} [2013-01]
C09K 11/0855
. .
{Phosphates} [2013-01]
C09K 11/0861
. . .
{with alkaline earth metals} [2013-01]
C09K 11/0866
. . . .
{with halogens} [2013-01]
C09K 11/0872
. . .
{with rare earth metals} [2013-01]
C09K 11/0877
. .
{Borates} [2013-01]
C09K 11/0883
. .
{Arsenides; Nitrides; Phosphides} [2013-01]
C09K 11/0888
. .
{Sulfates} [2013-01]
C09K 11/0894
. .
{Antimonates; Arsenates} [2013-01]
C09K 11/54
. .
containing zinc or cadmium [2013-01]
C09K 11/55
. .
containing beryllium, magnesium, alkali metals or alkaline earth metals [2017-02]
C09K 11/56
. .
containing sulfur [2013-01]
C09K 11/562
. . .
{Chalcogenides} [2013-01]
C09K 11/565
. . . .
{with zinc cadmium} [2013-01]
C09K 11/567
. . . .
{with alkaline earth metals} [2013-01]
C09K 11/57
. .
containing manganese or rhenium [2013-01]
C09K 11/572
. . .
{Chalcogenides} [2013-01]
C09K 11/574
. . . .
{with zinc or cadmium} [2013-01]
C09K 11/576
. . . .
{with alkaline earth metals} [2013-01]
C09K 11/578
. . .
{Sulfates} [2013-01]
C09K 11/58
. .
containing copper, silver or gold [2013-01]
C09K 11/582
. . .
{Chalcogenides} [2013-01]
C09K 11/584
. . . .
{with zinc or cadmium} [2013-01]
C09K 11/586
. . . .
{with alkaline earth metals} [2015-10]
C09K 11/588
. . .
{Sulfates} [2013-01]
C09K 11/59
. .
containing silicon [2013-01]
C09K 11/592
. . .
{Chalcogenides} [2013-01]
C09K 11/595
. . . .
{with zinc or cadmium} [2013-01]
C09K 11/597
. . .
{Sulfates} [2013-01]
C09K 11/60
. .
containing iron, cobalt or nickel [2013-01]
C09K 11/602
. . .
{Chalcogenides} [2013-01]
C09K 11/605
. . . .
{with zinc or cadmium} [2013-01]
C09K 11/607
. . .
{Silicates} [2013-01]
C09K 11/61
. .
containing fluorine, chlorine, bromine, iodine or unspecified halogen elements [2013-01]
C09K 11/611
. . .
{Chalcogenides} [2013-01]
C09K 11/612
. . . .
{with zinc or cadmium} [2013-01]
C09K 11/613
. . . .
{with alkali or alkakine earth metals} [2013-01]
C09K 11/615
. . .
{Halogenides} [2021-01]
C09K 11/616
. . . .
{with alkali or alkaline earth metals} [2013-01]
C09K 11/617
. . .
{Silicates} [2013-01]
C09K 11/618
. . .
{Sulfates} [2013-01]
C09K 11/62
. .
containing gallium, indium or thallium [2013-01]
C09K 11/621
. . .
{Chalcogenides} [2013-01]
C09K 11/623
. . . .
{with zinc or cadmium} [2013-01]
C09K 11/625
. . . .
{with alkaline earth metals} [2013-01]
C09K 11/626
. . .
{Halogenides (C09K 11/621 takes precedence)} [2013-01]
C09K 11/628
. . . .
{with alkali or alkaline earth metals} [2013-01]
C09K 11/63
. .
containing boron [2013-01]
C09K 11/632
. . .
{Halogenides} [2021-01]
C09K 11/634
. . . .
{with alkali or alkaline earth metals} [2013-01]
C09K 11/636
. . .
{Silicates} [2013-01]
C09K 11/638
. . .
{Sulfates} [2013-01]
C09K 11/64
. .
containing aluminium [2013-01]
C09K 11/641
. . .
{Chalcogenides} [2013-01]
C09K 11/642
. . . .
{with zinc or cadmium} [2013-01]
C09K 11/643
. . . .
{with alkaline earth metals} [2013-01]
C09K 11/644
. . .
{Halogenides (C09K 11/641 takes precedence)} [2021-01]
C09K 11/645
. . . .
{with alkali or alkaline earth metals} [2013-01]
C09K 11/646
. . .
{Silicates} [2013-01]
C09K 11/647
. . .
{Borates} [2013-01]
C09K 11/648
. . .
{Sulfates} [2013-01]
C09K 11/65
. .
containing carbon (in organic compounds C09K 11/06) [2013-01]
C09K 11/655
. . .
{Aluminates; Silicates} [2013-01]
C09K 11/66
. .
containing germanium, tin or lead [2013-01]
C09K 11/661
. . .
{Chalcogenides} [2013-01]
C09K 11/662
. . . .
{with zinc or cadmium} [2013-01]
C09K 11/663
. . . .
{with alkaline earth metals} [2013-01]
C09K 11/664
. . .
{Halogenides (C09K 11/661 takes precedence)} [2021-01]
C09K 11/665
. . . .
{with alkali or alkaline earth metals} [2013-01]
C09K 11/666
. . .
{Aluminates; Silicates} [2013-01]
C09K 11/667
. . .
{Borates} [2013-01]
C09K 11/668
. . .
{Sulfates} [2013-01]
C09K 11/67
. .
containing refractory metals [2013-01]
C09K 11/671
. . .
{Chalcogenides} [2013-01]
C09K 11/672
. . . .
{with zinc or cadmium} [2013-01]
C09K 11/673
. . . .
{with alkaline earth metals} [2013-01]
C09K 11/674
. . .
{Halogenides (C09K 11/671 takes precedence)} [2021-01]
C09K 11/675
. . . .
{with alkali or alkaline earth metals} [2013-01]
C09K 11/676
. . .
{Aluminates; Silicates} [2013-01]
C09K 11/677
. . .
{Germanates} [2013-01]
C09K 11/678
. . .
{Borates} [2013-01]
C09K 11/679
. . .
{Sulfates} [2013-01]
C09K 11/68
. . .
containing chromium, molybdenum or tungsten [2013-01]
C09K 11/681
. . . .
{Chalcogenides} [2013-01]
C09K 11/682
. . . . .
{with zinc or cadmium} [2013-01]
C09K 11/684
. . . . .
{with alkaline earth metals} [2013-01]
C09K 11/685
. . . .
{Aluminates; Silicates} [2013-01]
C09K 11/687
. . . .
{Borates} [2013-01]
C09K 11/688
. . . .
{Sulfates} [2013-01]
C09K 11/69
. . .
containing vanadium [2013-01]
C09K 11/691
. . . .
{Chalcogenides} [2013-01]
C09K 11/693
. . . . .
{with zinc or cadmium} [2013-01]
C09K 11/695
. . . . .
{with alkaline earth metals} [2013-01]
C09K 11/696
. . . .
{Halogenides} [2013-01]
C09K 11/698
. . . .
{Aluminates; Silicates} [2013-01]
C09K 11/70
. .
containing phosphorus [2013-01]
C09K 11/701
. . .
{Chalcogenides} [2013-01]
C09K 11/703
. . . .
{with zinc or cadmium} [2021-01]
C09K 11/705
. . .
{Halogenides (C09K 11/701 takes precedence)} [2021-01]
C09K 11/706
. . .
{Aluminates; Silicates} [2013-01]
C09K 11/708
. . .
{Borates} [2013-01]
C09K 11/71
. . .
also containing alkaline earth metals [2013-01]
C09K 11/712
. . . .
{Halogenides} [2021-01]
C09K 11/715
. . . . .
{with alkali or alkaline earth metals} [2013-01]
C09K 11/717
. . . .
{Aluminates; Silicates} [2013-01]
C09K 11/72
. . .
also containing halogen, e.g. halophosphates [2013-01]
C09K 11/722
. . . .
{Chalcogenides} [2013-01]
C09K 11/725
. . . . .
{with alkaline earth metals} [2013-01]
C09K 11/727
. . . .
{Aluminates; Silicates} [2013-01]
C09K 11/73
. . . .
also containing alkaline earth metals [2013-01]
C09K 11/74
. .
containing arsenic, antimony or bismuth [2013-01]
C09K 11/7407
. . .
{Chalcogenides} [2013-01]
C09K 11/7414
. . . .
{with zinc or cadmium} [2013-01]
C09K 11/7421
. . . .
{with alkaline earth metals} [2013-01]
C09K 11/7428
. . .
{Halogenides (C09K 11/7407 takes precedence)} [2021-01]
C09K 11/7435
. . . .
{with alkali or alkaline earth metals} [2013-01]
C09K 11/7442
. . .
{Aluminates; Silicates} [2013-01]
C09K 11/745
. . .
{Germanates} [2013-01]
C09K 11/7457
. . .
{Vanadates; Chromates; Molybdates; Tungstates} [2013-01]
C09K 11/7464
. . .
{Phosphates} [2013-01]
C09K 11/7471
. . . .
{with alkaline earth metals} [2017-02]
C09K 11/7478
. . . . .
{with halogens} [2013-01]
C09K 11/7485
. . .
{Borates} [2013-01]
C09K 11/7492
. . .
{Arsenides; Nitrides; Phosphides} [2013-01]
C09K 11/75
. . .
containing antimony [2013-01]
C09K 11/751
. . . .
{Chalcogenides} [2013-01]
C09K 11/752
. . . . .
{with zinc or cadmium} [2013-01]
C09K 11/753
. . . . .
{with alkaline earth metals} [2013-01]
C09K 11/755
. . . .
{Halogenides (C09K 11/751 takes precedence)} [2021-01]
C09K 11/756
. . . . .
{with alkali or alkaline earth metals} [2013-01]
C09K 11/757
. . . .
{Aluminates; Silicates} [2013-01]
C09K 11/758
. . . .
{Vandates; Chromates; Molybdates; Tungstates} [2013-01]
C09K 11/76
. . . .
also containing phosphorus and halogen, e.g. halophosphates [2013-01]
C09K 11/765
. . . . .
{Borates} [2013-01]
C09K 11/77
. .
containing rare earth metals [2013-01]
C09K 11/7701
. . .
{Chalogenides} [2013-01]
C09K 11/7702
. . . .
{with zinc or cadmium} [2013-01]
C09K 11/7703
. . . .
{with alkaline earth metals} [2013-01]
C09K 11/7704
. . .
{Halogenides (C09K 11/7701 takes precedence)} [2021-01]
C09K 11/7705
. . . .
{with alkali or alkaline earth metals} [2013-01]
C09K 11/7706
. . .
{Aluminates} [2023-05]
C09K 11/77062
. . .
{Silicates} [2023-05]
C09K 11/77064
. . .
{Aluminosilicates} [2023-05]
C09K 11/77066
. . .
{Aluminium Nitrides or Aluminium Oxynitrides} [2023-05]
C09K 11/77067
. . .
{Silicon Nitrides or Silicon Oxynitrides} [2023-05]
C09K 11/77068
. . .
{Silicon Aluminium Nitrides or Silicon Aluminium Oxynitrides} [2023-05]
C09K 11/7707
. . .
{Germanates} [2013-01]
C09K 11/7708
. . .
{Vanadates; Chromates; Molybdates; Tungstates} [2013-01]
C09K 11/7709
. . .
{Phosphates} [2013-01]
C09K 11/771
. . . .
{with alkaline earth metals} [2013-01]
C09K 11/7711
. . . . .
{with halogens} [2013-01]
C09K 11/7712
. . .
{Borates} [2013-01]
C09K 11/7713
. . .
{Sulfates} [2013-01]
C09K 11/7714
. . .
{Antimonates; Arsenates} [2013-01]
C09K 11/7715
. . .
{containing cerium} [2013-01]
C09K 11/7716
. . . .
{Chalcogenides} [2013-01]
C09K 11/7717
. . . . .
{with zinc or cadmium} [2013-01]
C09K 11/7718
. . . . .
{with alkaline earth metals} [2013-01]
C09K 11/7719
. . . .
{Halogenides (C09K 11/7716 takes precedence)} [2021-01]
C09K 11/772
. . . . .
{with alkali or alkaline earth metals} [2013-01]
C09K 11/7721
. . . .
{Aluminates} [2023-05]
C09K 11/77212
. . . .
{Silicates} [2023-05]
C09K 11/77214
. . . .
{Aluminosilicates} [2023-05]
C09K 11/77216
. . . .
{Aluminium Nitrides or Aluminium Oxynitrides} [2023-05]
C09K 11/77217
. . . .
{Silicon Nitrides or Silicon Oxynitrides} [2023-05]
C09K 11/77218
. . . .
{Silicon Aluminium Nitrides or Silicon Aluminium Oxynitrides} [2023-05]
C09K 11/7722
. . . .
{Vanadates; Chromates; Molybdates; Tungstates} [2013-01]
C09K 11/7723
. . . .
{Phosphates} [2013-01]
C09K 11/7724
. . . . .
{with alkaline earth metals} [2013-01]
C09K 11/7725
. . . . . .
{with halogens} [2013-01]
C09K 11/7726
. . . .
{Borates} [2013-01]
C09K 11/7727
. . . .
{Sulfates} [2013-01]
C09K 11/7728
. . .
{containing europium} [2021-01]
C09K 11/7729
. . . .
{Chalcogenides} [2013-01]
C09K 11/773
. . . . .
{with zinc or cadmium} [2021-01]
C09K 11/7731
. . . . .
{with alkaline earth metals} [2013-01]
C09K 11/7732
. . . .
{Halogenides} [2013-01]
C09K 11/7733
. . . . .
{with alkali or alkaline earth metals} [2013-01]
C09K 11/7734
. . . .
{Aluminates} [2023-05]
C09K 11/77342
. . . .
{Silicates} [2023-05]
C09K 11/77344
. . . .
{Aluminosilicates} [2023-05]
C09K 11/77346
. . . .
{Aluminium Nitrides or Aluminium Oxynitrides} [2023-05]
C09K 11/77347
. . . .
{Silicon Nitrides or Silicon Oxynitrides} [2023-05]
C09K 11/77348
. . . .
{Silicon Aluminium Nitrides or Silicon Aluminium Oxynitrides} [2023-05]
C09K 11/7735
. . . .
{Germanates} [2013-01]
C09K 11/7736
. . . .
{Vanadates; Chromates; Molybdates; Tungstates} [2013-01]
C09K 11/7737
. . . .
{Phosphates} [2013-01]
C09K 11/7738
. . . . .
{with alkaline earth metals} [2013-01]
C09K 11/7739
. . . . . .
{with halogens} [2013-01]
C09K 11/774
. . . .
{Borates} [2013-01]
C09K 11/7741
. . . .
{Sulfates} [2013-01]
C09K 11/7742
. . . .
{Antimonates; Arsenates} [2013-01]
C09K 11/7743
. . .
{containing terbium} [2013-01]
C09K 11/7744
. . . .
{Chalcogenides} [2013-01]
C09K 11/7745
. . . . .
{with zinc or cadmium} [2013-01]
C09K 11/7746
. . . . .
{with alkaline earth metals} [2013-01]
C09K 11/7747
. . . .
{Halogenides (C09K 11/7744 takes precedence)} [2021-01]
C09K 11/7748
. . . . .
{with alkali or alkaline earth metals} [2013-01]
C09K 11/7749
. . . .
{Aluminates} [2023-05]
C09K 11/77492
. . . .
{Silicates} [2023-05]
C09K 11/77494
. . . .
{Aluminosilicates} [2023-05]
C09K 11/77496
. . . .
{Aluminium Nitrides or Aluminium Oxynitrides} [2023-05]
C09K 11/77497
. . . .
{Silicon Nitrides or Silicon Oxynitrides} [2023-05]
C09K 11/77498
. . . .
{Silicon Aluminium Nitrides or Silicon Aluminium Oxynitrides} [2023-05]
C09K 11/775
. . . .
{Germanates} [2013-01]
C09K 11/7751
. . . .
{Vanadates; Chromates; Molybdates; Tungstates} [2013-01]
C09K 11/7752
. . . .
{Phosphates} [2013-01]
C09K 11/7753
. . . . .
{with alkaline earth metals} [2013-01]
C09K 11/7754
. . . . . .
{with halogens} [2013-01]
C09K 11/7755
. . . .
{Borates} [2013-01]
C09K 11/7756
. . .
{containing neodynium} [2013-01]
C09K 11/7757
. . . .
{Halogenides} [2021-01]
C09K 11/7758
. . . .
{Aluminates; Silicates} [2013-01]
C09K 11/7759
. . .
{containing samarium} [2013-01]
C09K 11/776
. . . .
{Chalcogenides} [2013-01]
C09K 11/7761
. . . . .
{with alkaline earth metals} [2013-01]
C09K 11/7762
. . . .
{Halogenides (C09K 11/776 takes precedence)} [2021-01]
C09K 11/7763
. . . . .
{with alkali or alkaline earth metals} [2013-01]
C09K 11/7764
. . . .
{Aluminates; Silicates} [2013-01]
C09K 11/7765
. . . .
{Vanadates; Chromates; Molybdates; Tungstates} [2013-01]
C09K 11/7766
. . .
{containing two or more rare earth metals} [2021-01]
C09K 11/7767
. . . .
{Chalcogenides} [2013-01]
C09K 11/7768
. . . . .
{with alkaline earth metals} [2013-01]
C09K 11/7769
. . . . .
{Oxides (C09K 11/7768 takes precedence)} [2013-01]
C09K 11/777
. . . . . .
{Oxyhalogenides} [2013-01]
C09K 11/7771
. . . . . .
{Oxysulfides} [2013-01]
C09K 11/7772
. . . .
{Halogenides (C09K 11/7767 takes precedence)} [2021-01]
C09K 11/7773
. . . . .
{with alkali or alkaline earth metal} [2013-01]
C09K 11/7774
. . . .
{Aluminates} [2023-05]
C09K 11/77742
. . . .
{Silicates} [2023-05]
C09K 11/77744
. . . .
{Aluminosilicates} [2023-05]
C09K 11/77746
. . . .
{Aluminium Nitrides or Aluminium Oxynitrides} [2023-05]
C09K 11/77747
. . . .
{Silicon Nitrides or Silicon Oxynitrides} [2023-05]
C09K 11/77748
. . . .
{Silicon Aluminium Nitrides or Silicon Aluminium Oxynitrides} [2023-05]
C09K 11/7775
. . . .
{Germanates} [2013-01]
C09K 11/7776
. . . .
{Vanadates; Chromates; Molybdates; Tungstates} [2013-01]
C09K 11/7777
. . . .
{Phosphates} [2013-01]
C09K 11/7778
. . . . .
{with alkaline earth metals} [2013-01]
C09K 11/7779
. . . . . .
{with halogens} [2013-01]
C09K 11/778
. . . .
{Borates} [2013-01]
C09K 11/7781
. . . .
{Sulfates} [2013-01]
C09K 11/7782
. . . .
{Antimonates; Arsenates} [2013-01]
C09K 11/7783
. . .
{containing two or more rare earth metals one of which being europium} [2013-01]
C09K 11/7784
. . . .
{Chalcogenides} [2013-01]
C09K 11/7785
. . . . .
{with zinc or cadmium} [2021-01]
C09K 11/7786
. . . . .
{with alkaline earth metals} [2013-01]
C09K 11/7787
. . . . .
{Oxides (C09K 11/7785 takes precedence)} [2021-01]
C09K 11/7788
. . . . . .
{Oxyhalogenides} [2013-01]
C09K 11/7789
. . . . . .
{Oxysulfides} [2013-01]
C09K 11/779
. . . .
{Halogenides (C09K 11/7784 takes precedence)} [2021-01]
C09K 11/7791
. . . . .
{with alkali or alkaline earth metals} [2017-02]
C09K 11/7792
. . . .
{Aluminates} [2023-05]
C09K 11/77922
. . . .
{Silicates} [2023-05]
C09K 11/77924
. . . .
{Aluminosilicates} [2023-05]
C09K 11/77926
. . . .
{Aluminium Nitrides or Aluminium Oxynitrides} [2023-05]
C09K 11/77927
. . . .
{Silicon Nitrides or Silicon Oxynitrides} [2023-05]
C09K 11/77928
. . . .
{Silicon Aluminium Nitrides or Silicon Aluminium Oxynitrides} [2023-05]
C09K 11/7793
. . . .
{Germanates} [2013-01]
C09K 11/7794
. . . .
{Vanadates; Chromates; Molybdates; Tungstates} [2013-01]
C09K 11/7795
. . . .
{Phosphates} [2013-01]
C09K 11/7796
. . . . .
{with alkaline earth metals} [2013-01]
C09K 11/7797
. . . .
{Borates} [2013-01]
C09K 11/7798
. . . .
{Antimonates; Arsenates} [2013-01]
C09K 11/87
. .
containing platina group metals [2013-01]
C09K 11/873
. . .
{Chalcogenides} [2013-01]
C09K 11/876
. . . .
{with zinc or cadmium} [2013-01]
C09K 11/88
. .
containing selenium, tellurium or unspecified chalcogen elements [2013-01]
C09K 11/881
. . .
{Chalcogenides} [2013-01]
C09K 11/883
. . . .
{with zinc or cadmium} [2013-01]
C09K 11/885
. . . .
{with alkaline earth metals} [2013-01]
C09K 11/886
. . . .
{with rare earth metals} [2013-01]
C09K 11/888
. . .
{Borates} [2013-01]
C09K 11/89
. .
containing mercury [2013-01]
C09K 11/892
. . .
{Chalcogenides} [2013-01]
C09K 11/895
. . .
{Halogenides (C09K 11/892 takes precedence)} [2013-01]
C09K 11/897
. . . .
{with alkali or alkaline metals} [2013-01]
​
C09K 13/00
Etching, surface-brightening or pickling compositions (for glass C03C 15/00, {C03C 25/66; for mortars, concrete, artificial or natural stone or ceramics C04B 41/5338} ; for metallic material C23F, C23G 1/00, C25F 1/00; {for semi-conductors H01L}) [2016-05]
NOTE

  • In groups C09K 13/02 - C09K 13/12, in the absence of an indication to the contrary, materials are classified in the last appropriate place.
C09K 13/02
.
containing an alkali metal hydroxide [2013-01]
C09K 13/04
.
containing an inorganic acid [2013-01]
C09K 13/06
. .
with organic material [2013-01]
C09K 13/08
. .
containing a fluorine compound [2013-01]
C09K 13/10
. .
containing a boron compound [2013-01]
C09K 13/12
.
containing heavy metal salts in an amount of at least 50% of the non-solvent components [2013-01]
​
C09K 15/00
Anti-oxidant compositions; Compositions inhibiting chemical change ({for use in well-specified applications, see the relevant places, e.g. in etching or pickling compositions C09K 13/00, C23G} , in foodstuffs A21D, A23, {in association with organic compounds C07C, C07D} , in macromolecular compositions C08; in liquid fuels or lubricants C10; in fats, fatty substances, fatty oils or waxes C11B 5/00; in detergents C11D; {coating or impregnating carbon or graphite based bodies to protect them from oxidation C04B 41/45} ; corrosion inhibiting compositions for metallic material C23F 11/00) [2017-08]
NOTE

  • In groups C09K 15/02 - C09K 15/34, in the absence of an indication to the contrary, a composition is classified in the last appropriate place.
C09K 15/02
.
containing inorganic compounds [2013-01]
C09K 15/04
.
containing organic compounds [2013-01]
C09K 15/06
. .
containing oxygen [2013-01]
C09K 15/08
. . .
containing a phenol or quinone moiety [2013-01]
C09K 15/10
. .
containing sulfur [2013-01]
C09K 15/12
. .
containing sulfur and oxygen [2013-01]
C09K 15/14
. . .
containing a phenol or quinone moiety [2013-01]
C09K 15/16
. .
containing nitrogen [2013-01]
C09K 15/18
. . .
containing an amine or imine moiety [2013-01]
C09K 15/20
. .
containing nitrogen and oxygen [2013-01]
C09K 15/22
. . .
containing an amide or imide moiety [2013-01]
C09K 15/24
. . .
containing a phenol or quinone moiety [2013-01]
C09K 15/26
. .
containing nitrogen and sulfur [2013-01]
C09K 15/28
. .
containing nitrogen, oxygen and sulfur [2013-01]
C09K 15/30
. .
containing heterocyclic ring with at least one nitrogen atom as ring member [2013-01]
C09K 15/32
. .
containing {two or more of} boron, silicon, phosphorus, selenium, tellurium or a metal [2013-01]
C09K 15/322
. . .
{containing only phosphorus} [2013-01]
C09K 15/324
. . . .
{containing phosphorus and sulfur} [2013-01]
C09K 15/326
. . .
{containing only metals} [2013-01]
C09K 15/328
. . .
{containing boron, silicon, selenium or tellurium} [2013-01]
C09K 15/34
.
containing plant or animal materials of unknown composition [2013-01]
​
C09K 17/00
Soil-conditioning materials or soil-stabilising materials (specially adapted for boreholes or wells C09K 8/00; fertilisers C05; consolidating by placing solidifying or pore-filling substances in the soil E02D 3/12) [2016-05]
NOTES

  • This group covers mixtures of soil-conditioning or soil-stabilising materials with fertilisers characterised by their soil-conditioning or soil-stabilising activity.
  • This group does not cover mixtures of soil-conditioning or soil-stabilising materials with fertilisers characterised by their fertilising activity which are covered by subclass C05G.
  • For the purpose of classification in this group, the presence of fertilisers in the composition is not taken into account.
  • In groups C09K 17/02 - C09K 17/50, in the absence of an indication to the contrary, materials are classified in the last appropriate place.
C09K 17/02
.
containing inorganic compounds only [2013-01]
C09K 17/04
. .
applied in a physical form other than a solution or a grout, e.g. as granules or gases [2013-01]
C09K 17/045
. . .
{applied as gases} [2013-01]
C09K 17/06
. .
Calcium compounds, e.g. lime [2013-01]
C09K 17/08
. .
Aluminium compounds, e.g. aluminium hydroxide [2013-01]
C09K 17/10
. .
Cements, e.g. Portland cement [2013-01]
C09K 17/12
. .
Water-soluble silicates, e.g. waterglass [2013-01]
C09K 17/14
.
containing organic compounds only [2013-01]
C09K 17/16
. .
applied in a physical form other than a solution or a grout, e.g. as platelets or granules [2013-01]
C09K 17/18
. .
Prepolymers; Macromolecular compounds [2013-01]
C09K 17/20
. . .
Vinyl polymers [2013-01]
C09K 17/22
. . . .
Polyacrylates; Polymethacrylates [2013-01]
C09K 17/24
. . .
Condensation polymers of aldehydes or ketones [2013-01]
C09K 17/26
. . . .
Phenol-aldehyde condensation polymers [2013-01]
C09K 17/28
. . . .
Urea-aldehyde condensation polymers [2013-01]
C09K 17/30
. . .
Polyisocyanates; Polyurethanes [2013-01]
C09K 17/32
. . .
of natural origin, e.g. cellulosic materials [2013-01]
C09K 17/34
. . .
Bituminous materials [2013-01]
C09K 17/36
. .
Compounds having one or more carbon-to-silicon linkages [2013-01]
C09K 17/38
. . .
Siloxanes [2013-01]
C09K 17/40
.
containing mixtures of inorganic and organic compounds [2013-01]
C09K 17/42
. .
Inorganic compounds mixed with organic active ingredients, e.g. accelerators [2013-01]
C09K 17/44
. . .
the inorganic compound being cement [2013-01]
C09K 17/46
. . .
the inorganic compound being a water-soluble silicate [2013-01]
C09K 17/48
. .
Organic compounds mixed with inorganic active ingredients, e.g. polymerisation catalysts [2013-01]
C09K 17/50
. . .
the organic compound being of natural origin, e.g. cellulose derivatives [2013-01]
C09K 17/52
.
Mulches [2013-01]
​
C09K 19/00
Liquid crystal materials [2016-05]
NOTES

  • In groups C09K 19/02 - C09K 19/60, { with the exception of groups C09K 19/0208 - C09K 19/0283} ,in the absence of an indication to the contrary, materials are classified in the last appropriate place.
  • Mixtures containing two or more liquid crystal compounds covered individually by the same one of groups C09K 19/04 - C09K 19/40 are classified only in that group.
  • If liquid crystal components of the mixtures classified in groups C09K 19/42 - C09K 19/50 are of importance as such, they should also be classified according to the compounds in groups C09K 19/04 - C09K 19/40.
C09K 19/02
.
characterised by optical, electrical or physical properties of the components, in general [2013-01]
C09K 19/0208
. .
{Twisted Nematic (T.N.); Super Twisted Nematic (S.T.N.); Optical Mode Interference (O.M.I.)} [2013-01]
C09K 19/0216
. .
{Super Birefringence Effect (S.B.E.); Electrically Controlled Birefringence (E.C.B.)} [2013-01]
C09K 19/0225
. .
{Ferroelectric} [2013-01]
C09K 19/0233
. .
{Electroclinic} [2013-01]
C09K 19/0241
. .
{Ferrielectric; Ferromagnetic} [2013-01]
C09K 19/025
. .
{Ferronematic; Ferrosmetic} [2013-01]
C09K 19/0258
. .
{Flexoelectric} [2013-01]
C09K 19/0266
. .
{Antiferroelectrics} [2013-01]
C09K 19/0275
. .
{Blue phase} [2013-01]
C09K 19/0283
. .
{Cubic phase} [2013-01]
C09K 19/0291
. .
{anticlinic} [2013-01]
C09K 19/04
.
characterised by the chemical structure of the liquid crystal components {, e.g. by a specific unit} [2017-08]
C09K 19/0403
. .
{the structure containing one or more specific, optionally substituted ring or ring systems} [2013-01]
C09K 2019/0407
. . .
{containing a carbocyclic ring, e.g. dicyano-benzene, chlorofluoro-benzene or cyclohexanone} [2013-01]
C09K 2019/0411
. . .
{containing a chlorofluoro-benzene, e.g. 2-chloro-3-fluoro-phenylene-1,4-diyl} [2013-01]
C09K 2019/0414
. . .
{containing a heterocyclic ring} [2013-01]
C09K 2019/0418
. . .
{containing a dendromer structure; Dendritic liquid crystals} [2013-01]
C09K 19/0422
. .
{Sugars (polysaccharides C09K 19/3819)} [2013-01]
C09K 2019/0425
. .
{characterized by a specific unit that results in a functional effect} [2013-01]
C09K 2019/0429
. . .
{the specific unit being a carbocyclic or heterocyclic discotic unit} [2013-01]
C09K 2019/0433
. . .
{the specific unit being a luminescent or electroluminescent unit} [2013-01]
C09K 2019/0437
. . .
{the specific unit being an optically active chain used as linking group between rings or as end group} [2013-01]
C09K 2019/044
. . .
{the specific unit being a perfluoro chain used as an end group} [2013-01]
C09K 2019/0444
. .
{characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group} [2013-01]
C09K 2019/0448
. . .
{the end chain group being a polymerizable end group, e.g. -Sp-P or acrylate} [2013-01]
C09K 2019/0451
. . .
{the end chain group being a CH3CH=CHCH2CH2- chain} [2013-01]
C09K 2019/0455
. . .
{the linking chain being a -CF2CF2- , -CF2CF2CF2CF2- or -CH2CF2CF2CH2- chain} [2013-01]
C09K 2019/0459
. . .
{the linking chain being a -CF=CF- chain, e.g. 1,2-difluoroethen-1,2-diyl} [2013-01]
C09K 2019/0462
. . .
{the linking chain being a -CF2CF2O- chain} [2013-01]
C09K 2019/0466
. . .
{the linking chain being a -CF2O- chain} [2013-01]
C09K 2019/047
. . .
{the linking chain being a -CH2CF2O- chain} [2013-01]
C09K 2019/0474
. . .
{the linking chain being a -CHFO- chain} [2013-01]
C09K 2019/0477
. .
{characterized by the positioning of substituents on phenylene} [2013-01]
C09K 2019/0481
. . .
{Phenylene substituted in meta position} [2013-01]
C09K 2019/0485
. . .
{Phenylene substituted in ortho position} [2013-01]
C09K 2019/0488
. .
{characterized by a special bonding} [2013-01]
C09K 2019/0492
. . .
{the special bonding being an hydrogen bond} [2013-01]
C09K 2019/0496
. . .
{the special bonding being a specific pi-conjugated group} [2013-01]
C09K 19/06
. .
Non-steroidal liquid crystal compounds [2013-01]
C09K 19/061
. . .
{Linear compounds without any rings} [2013-01]
C09K 19/062
. . .
{containing one non-condensed benzene ring} [2013-01]
C09K 19/063
. . .
{containing one non-condensed saturated non-aromatic ring, e.g. cyclohexane ring} [2013-01]
C09K 19/065
. . .
{containing one non-condensed unsaturated non-aromatic ring, e.g. cyclohexene ring} [2013-01]
C09K 19/066
. . .
{containing one heterocyclic ring having oxygen as heteroatom} [2013-01]
C09K 19/067
. . .
{containing one heterocyclic ring having nitrogen as heteroatom} [2013-01]
C09K 19/068
. . .
{containing one heterocyclic ring having sulfur as heteroatom} [2013-01]
C09K 19/08
. . .
containing at least two non-condensed rings [2013-01]
C09K 19/10
. . . .
containing at least two benzene rings [2013-01]
C09K 19/12
. . . . .
at least two benzene rings directly linked, e.g. biphenyls [2013-01]
C09K 2019/121
. . . . . .
{Compounds containing phenylene-1,4-diyl (-Ph-)} [2013-01]
C09K 2019/122
. . . . . . .
{Ph-Ph} [2013-01]
C09K 2019/123
. . . . . . .
{Ph-Ph-Ph} [2013-01]
C09K 2019/124
. . . . . . .
{Ph-Ph-Ph-Ph} [2013-01]
C09K 2019/125
. . . . . . .
{Ph-Ph-Ph-Ph-Ph or more Ph rings} [2013-01]
C09K 19/126
. . . . . .
{Compounds containing at least one asymmetric carbon atom} [2013-01]
C09K 2019/127
. . . . . .
{Compounds containing phenylene-1,3-diyl} [2013-01]
C09K 2019/128
. . . . . .
{Compounds containing phenylene-1,2-diyl} [2013-01]
C09K 19/14
. . . . .
linked by a carbon chain [2013-01]
C09K 19/16
. . . . . .
the chain containing carbon-to-carbon double bonds, e.g. stilbenes [2013-01]
C09K 2019/161
. . . . . . .
{Ph-CH=CH-Ph} [2013-01]
C09K 2019/163
. . . . . . .
{Ph-Ph-CH=CH-Ph} [2013-01]
C09K 2019/165
. . . . . . .
{Ph-Ph-CH=CH-Ph-Ph} [2013-01]
C09K 2019/166
. . . . . . .
{Ph-Ph-Ph-CH=CH-Ph} [2013-01]
C09K 2019/168
. . . . . . .
{Ph-CH=CH-Ph-CH=CH-Ph} [2013-01]
C09K 19/18
. . . . . .
the chain containing carbon-to-carbon triple bonds, e.g. tolans [2013-01]
C09K 2019/181
. . . . . . .
{Ph-C≡C-Ph} [2017-08]
C09K 2019/183
. . . . . . .
{Ph-Ph-C≡C-Ph} [2017-08]
C09K 2019/185
. . . . . . .
{Ph-Ph-C≡C-Ph-Ph} [2017-08]
C09K 2019/186
. . . . . . .
{Ph-C≡C-C≡C-Ph} [2017-08]
C09K 2019/188
. . . . . . .
{Ph-C≡C-Ph-C≡C-Ph} [2017-08]
C09K 19/20
. . . . .
linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters {or ethers} [2013-01]
C09K 19/2007
. . . . . .
{the chain containing -COO- or -OCO- groups} [2013-01]
C09K 19/2014
. . . . . . .
{containing additionally a linking group other than -COO- or -OCO-, e.g. -CH2-CH2-, -CH=CH-, -C=C-; containing at least one additional carbon atom in the chain containing -COO- or -OCO- groups, e.g. -(CH2)m-COO-(CH2)n-} [2013-01]
C09K 19/2021
. . . . . . .
{Compounds containing at least one asymmetric carbon atom} [2013-01]
C09K 19/2028
. . . . . . . .
{containing additionally a linking group other than -COO- or -OCO-, e.g. -CH2-CH2-, -CH=CH-, -C=C-; containing at least one additional carbon atom in the chain containing -COO- or -OCO- groups, e.g. -COO-CH*-CH3} [2013-01]
C09K 2019/2035
. . . . . . .
{Ph-COO-Ph} [2013-01]
C09K 2019/2042
. . . . . . .
{Ph-Ph-COO-Ph} [2013-01]
C09K 2019/205
. . . . . . .
{Ph-Ph-Ph-COO-Ph} [2013-01]
C09K 2019/2057
. . . . . . .
{Ph-Ph-Ph-Ph-COO-Ph, or more Ph rings} [2013-01]
C09K 2019/2064
. . . . . . .
{Ph-Ph-COO-Ph-Ph} [2013-01]
C09K 2019/2071
. . . . . . .
{Ph-Ph-Ph-COO-Ph-Ph, or more Ph rings} [2013-01]
C09K 2019/2078
. . . . . . .
{Ph-COO-Ph-COO-Ph} [2013-01]
C09K 2019/2085
. . . . . . .
{Ph-CH=CH-Ph-COO-Ph} [2013-01]
C09K 2019/2092
. . . . . . .
{Ph-C≡C-Ph-COO-Ph} [2017-08]
C09K 19/22
. . . . .
linked by a chain containing carbon and nitrogen atoms as chain links, e.g. Schiff bases [2013-01]
C09K 19/24
. . . . .
linked by a chain containing nitrogen-to-nitrogen bonds [2013-01]
C09K 19/26
. . . . . .
Azoxy compounds [2013-01]
C09K 19/28
. . . . .
linked by a chain containing carbon and sulfur atoms as chain links, e.g. thioesters [2013-01]
C09K 19/30
. . . .
containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings [2013-01]
C09K 19/3001
. . . . .
{Cyclohexane rings} [2013-01]
C09K 19/3003
. . . . . .
{Compounds containing at least two rings in which the different rings are directly linked (covalent bond)} [2013-01]
C09K 2019/3004
. . . . . . .
{Cy-Cy} [2013-01]
C09K 2019/3006
. . . . . . .
{Cy-Cy-Cy} [2013-01]
C09K 2019/3007
. . . . . . .
{Cy-Cy-Cy-Cy or more Cy rings} [2013-01]
C09K 2019/3009
. . . . . . .
{Cy-Ph} [2013-01]
C09K 2019/301
. . . . . . .
{Cy-Cy-Ph} [2013-01]
C09K 2019/3012
. . . . . . .
{Cy-Cy-Cy-Ph, or more Cy rings} [2013-01]
C09K 2019/3013
. . . . . . .
{Cy-Ph-Cy} [2013-01]
C09K 2019/3015
. . . . . . .
{Cy-Cy-Ph-Cy} [2013-01]
C09K 2019/3016
. . . . . . .
{Cy-Ph-Ph} [2013-01]
C09K 2019/3018
. . . . . . .
{Ph-Cy-Ph} [2013-01]
C09K 2019/3019
. . . . . . .
{Cy-Cy-Ph-Ph} [2013-01]
C09K 2019/3021
. . . . . . .
{Cy-Ph-Ph-Cy} [2013-01]
C09K 2019/3022
. . . . . . .
{Cy-Ph-Cy-Ph} [2013-01]
C09K 2019/3024
. . . . . . .
{Ph-Cy-Cy-Ph} [2013-01]
C09K 2019/3025
. . . . . . .
{Cy-Ph-Ph-Ph} [2013-01]
C09K 2019/3027
. . . . . . .
{Compounds comprising 1,4-cyclohexylene and 2,3-difluoro-1,4-phenylene} [2013-01]
C09K 19/3028
. . . . . .
{in which at least two rings are linked by a carbon chain containing carbon to carbon single bonds} [2013-01]
C09K 2019/303
. . . . . . .
{Cy-C2H4-Cy} [2016-08]
C09K 2019/3031
. . . . . . .
{Cy-Cy-C2H4-Cy} [2016-08]
C09K 2019/3033
. . . . . . .
{Cy-Cy-Cy-C2H4-Cy} [2016-08]
C09K 2019/3034
. . . . . . .
{Cy-Cy-C2H4-Cy-Cy} [2016-08]
C09K 2019/3036
. . . . . . .
{Cy-C2H4-Ph} [2016-08]
C09K 2019/3037
. . . . . . .
{Cy-Cy-C2H4-Ph} [2016-08]
C09K 2019/3039
. . . . . . .
{Cy-Cy-Cy-C2H4-Ph} [2016-08]
C09K 2019/304
. . . . . . .
{Cy-C2H4-Ph-Ph} [2016-08]
C09K 2019/3042
. . . . . . .
{Cy-Cy-C2H4-Ph-Ph} [2016-08]
C09K 2019/3043
. . . . . . .
{Cy-Cy-C2H4-Ph-Cy} [2016-08]
C09K 2019/3045
. . . . . . .
{Cy-Ph-C2H4-Ph-Cy} [2016-08]
C09K 2019/3046
. . . . . . .
{Cy-C2H4-Ph-C2H4-Cy} [2016-08]
C09K 19/3048
. . . . . .
{in which at least two rings are linked by a carbon chain containing carbon to carbon double bonds} [2013-01]
C09K 2019/305
. . . . . . .
{Cy-CH=CH-Cy} [2013-01]
C09K 2019/3051
. . . . . . .
{Cy-CH=CH-Cy-Ph} [2013-01]
C09K 2019/3053
. . . . . . .
{Cy-CH=CH-Ph} [2013-01]
C09K 2019/3054
. . . . . . .
{Cy-Cy-CH=CH-Ph} [2013-01]
C09K 2019/3056
. . . . . . .
{Cy-Ph-CH=CH-Ph} [2013-01]
C09K 2019/3057
. . . . . . .
{Cy-Ph-Ph-CH=CH-Ph} [2013-01]
C09K 19/3059
. . . . . .
{in which at least two rings are linked by a carbon chain containing carbon to carbon triple bonds} [2013-01]
C09K 2019/306
. . . . . . .
{Cy-C≡C-Cy} [2017-08]
C09K 2019/3062
. . . . . . .
{Cy-C≡C-Ph} [2017-08]
C09K 2019/3063
. . . . . . .
{Cy-Ph-C≡C-Ph} [2017-08]
C09K 2019/3065
. . . . . . .
{Cy-Ph-Ph-C≡C-Ph} [2017-08]
C09K 19/3066
. . . . . .
{in which the rings are linked by a chain containing carbon and oxygen atoms, e.g. esters or ethers} [2013-01]
C09K 19/3068
. . . . . . .
{chain containing -COO- or -OCO- groups} [2013-01]
C09K 2019/3069
. . . . . . . .
{Cy-COO-Cy} [2013-01]
C09K 2019/3071
. . . . . . . .
{Cy-Cy-COO-Cy} [2013-01]
C09K 2019/3072
. . . . . . . .
{Cy-Cy-Cy-COO-Cy, or more Cy rings} [2013-01]
C09K 2019/3074
. . . . . . . .
{Cy-Cy-COO-Cy-Cy, or more Cy rings} [2013-01]
C09K 2019/3075
. . . . . . . .
{Cy-COO-Ph} [2013-01]
C09K 2019/3077
. . . . . . . .
{Cy-Cy-COO-Ph} [2013-01]
C09K 2019/3078
. . . . . . . .
{Cy-Cy-COO-Ph-Cy} [2013-01]
C09K 2019/308
. . . . . . . .
{Cy-Cy-COO-Ph-Ph} [2013-01]
C09K 2019/3081
. . . . . . . .
{Cy-Ph-COO-Cy} [2013-01]
C09K 2019/3083
. . . . . . . .
{Cy-Ph-COO-Ph} [2013-01]
C09K 2019/3084
. . . . . . . .
{Cy-Ph-COO-Ph-Cy} [2013-01]
C09K 19/3086
. . . . . .
{in which at least two rings are linked by a chain containing nitrogen atoms} [2013-01]
C09K 19/3087
. . . . . .
{in which at least two rings are linked by a chain containing sulfur atoms} [2013-01]
C09K 2019/3089
. . . . . . .
{Cy-S-Cy} [2013-01]
C09K 2019/309
. . . . . . .
{Cy-S-Ph} [2013-01]
C09K 2019/3092
. . . . . . .
{Cy-S-Ph-Ph} [2013-01]
C09K 2019/3093
. . . . . . .
{Cy-Ph-S-Ph} [2013-01]
C09K 2019/3095
. . . . . .
{in which the end group is the monoterpene menthyl} [2013-01]
C09K 2019/3096
. . . . .
{Cyclobutane rings} [2013-01]
C09K 19/3098
. . . . .
{Unsaturated non-aromatic rings, e.g. cyclohexene rings} [2013-01]
C09K 19/32
. . .
containing condensed ring systems, i.e. fused, bridged or spiro ring systems [2013-01]
C09K 19/321
. . . .
{Compounds containing a bicyclo [2,2,2] octane ring} [2013-01]
C09K 19/322
. . . .
{Compounds containing a naphthalene ring or a completely or partially hydrogenated naphthalene ring} [2013-01]
C09K 2019/323
. . . . .
{containing a binaphthyl} [2013-01]
C09K 2019/324
. . . . .
{containing a dihydronaphthalene} [2013-01]
C09K 2019/325
. . . . .
{containing a tetrahydronaphthalene, e.g. -2,6-diyl (tetralin)} [2013-01]
C09K 2019/326
. . . . .
{containing a decahydronaphthalene, e.g. -2,6-diyl (decalin)} [2013-01]
C09K 2019/327
. . . .
{containing a spiro ring system} [2013-01]
C09K 2019/328
. . . .
{containing a triphenylene ring system} [2013-01]
C09K 19/34
. . .
containing at least one heterocyclic ring [2013-01]
C09K 19/3402
. . . .
{having oxygen as hetero atom (sugars C09K 19/0422)} [2013-01]
C09K 19/3405
. . . . .
{the heterocyclic ring being a five-membered ring} [2013-01]
C09K 2019/3408
. . . . . .
{Five-membered ring with oxygen(s) in fused, bridged or spiro ring systems} [2013-01]
C09K 19/3411
. . . . .
{the heterocyclic ring being a three-membered ring} [2013-01]
C09K 2019/3413
. . . . . .
{Three-membered member ring with oxygen(s), e.g. oxirane in fused, bridged or spiro ring systems} [2013-01]
C09K 2019/3416
. . . . .
{the heterocyclic ring being a four-membered ring, e.g. oxetane} [2013-01]
C09K 2019/3419
. . . . . .
{Four-membered ring with oxygen(s), e.g. oxetane, in fused, bridged or spiro ring systems} [2013-01]
C09K 2019/3422
. . . . .
{the heterocyclic ring being a six-membered ring} [2013-01]
C09K 2019/3425
. . . . . .
{Six-membered ring with oxygen(s) in fused, bridged or spiro ring systems} [2013-01]
C09K 2019/3427
. . . . . .
{Six-membered ring with 3 or more oxygen atoms} [2013-01]
C09K 2019/343
. . . . .
{the heterocyclic ring being a seven-membered ring} [2013-01]
C09K 2019/3433
. . . . . .
{Seven-membered ring with oxygen(s) in fused, bridged or spiro ring systems} [2013-01]
C09K 2019/3436
. . . . . .
{Seven-membered ring with 3 or more oxygen atoms} [2013-01]
C09K 2019/3438
. . . . .
{Crown ethers} [2013-01]
C09K 19/3441
. . . .
{having nitrogen as hetero atom} [2013-01]
C09K 19/3444
. . . . .
{the heterocyclic ring being a six-membered aromatic ring containing one nitrogen atom, e.g. pyridine} [2013-01]
C09K 19/3447
. . . . . .
{Pyridine condensed or bridged with another ring system, e.g. quinoline or acridine} [2013-01]
C09K 19/345
. . . . .
{the heterocyclic ring being a six-membered aromatic ring containing two nitrogen atoms} [2013-01]
C09K 19/3452
. . . . . .
{Pyrazine} [2013-01]
C09K 19/3455
. . . . . .
{Pyridazine} [2013-01]
C09K 19/3458
. . . . . .
{Uncondensed pyrimidines} [2013-01]
C09K 19/3461
. . . . . . .
{Pyrimidine-tolane} [2013-01]
C09K 19/3463
. . . . . . .
{Pyrimidine with a carbon chain containing at least one asymmetric carbon atom, i.e. optically active pyrimidines} [2013-01]
C09K 19/3466
. . . . . . .
{Pyrimidine with at least another heterocycle in the chain} [2013-01]
C09K 19/3469
. . . . . . .
{Pyrimidine with a specific end-group other than alkyl, alkoxy or -C*-} [2013-01]
C09K 19/3472
. . . . . .
{Pyrimidine condensed or bridged with another ring system} [2013-01]
C09K 19/3475
. . . . .
{the heterocyclic ring being a six-membered aromatic ring containing at least three nitrogen atoms} [2013-01]
C09K 19/3477
. . . . .
{the heterocyclic ring being a five-membered aromatic ring containing at least one nitrogen atom} [2013-01]
C09K 19/348
. . . . . .
{containing at least two nitrogen atoms} [2013-01]
C09K 19/3483
. . . . .
{the heterocyclic ring being a non-aromatic ring} [2013-01]
C09K 19/3486
. . . . . .
{the heterocyclic ring containing nitrogen and oxygen atoms} [2013-01]
C09K 19/3488
. . . . .
{the heterocyclic ring having more than 6 members, e.g. macrocycles, phthalocyanines} [2013-01]
C09K 19/3491
. . . .
{having sulfur as hetero atom} [2013-01]
C09K 19/3494
. . . . .
{the heterocyclic ring containing sulfur and oxygen atoms} [2013-01]
C09K 19/3497
. . . . .
{the heterocyclic ring containing sulfur and nitrogen atoms} [2013-01]
C09K 19/36
. .
Steroidal liquid crystal compounds [2013-01]
C09K 19/38
. .
Polymers [2013-01]
C09K 19/3804
. . .
{with mesogenic groups in the main chain} [2013-01]
C09K 19/3809
. . . .
{Polyesters; Polyester derivatives, e.g. polyamides} [2013-01]
C09K 19/3814
. . . .
{Polyethers} [2013-01]
C09K 19/3819
. . . .
{Polysaccharides or derivatives thereof} [2013-01]
C09K 19/3823
. . . .
{containing heterocycles having at least one nitrogen as ring hetero atom} [2013-01]
C09K 19/3828
. . . . .
{containing triazine rings} [2013-01]
C09K 19/3833
. . .
{with mesogenic groups in the side chain} [2013-01]
C09K 19/3838
. . . .
{Polyesters; Polyester derivatives} [2013-01]
C09K 19/3842
. . . .
{Polyvinyl derivatives} [2013-01]
C09K 19/3847
. . . . .
{Polyvinylethers} [2013-01]
C09K 19/3852
. . . . .
{Poly(meth)acrylate derivatives} [2013-01]
C09K 19/3857
. . . . . .
{containing at least one asymmetric carbon atom} [2013-01]
C09K 19/3861
. . . . . .
{containing condensed ring systems} [2013-01]
C09K 19/3866
. . . . . .
{containing steroid groups} [2013-01]
C09K 19/3871
. . . . . .
{containing amino acid derivatives} [2013-01]
C09K 19/3876
. . . .
{Polyoxyalkylene polymers} [2013-01]
C09K 19/388
. . . . .
{Polyepoxides} [2013-01]
C09K 19/3885
. . . .
{Polyurethanes} [2013-01]
C09K 19/389
. . . .
{Polypeptides} [2013-01]
C09K 19/3895
. . . .
{containing two or more mesogenic groups per monomer unit, e.g. polyitaconates, polymaleates} [2013-01]
C09K 19/40
. .
containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen or sulfur, e.g. silicon, metals [2013-01]
C09K 19/402
. . .
{containing deuterium} [2013-01]
C09K 19/404
. . .
{containing boron or phosphorus} [2013-01]
C09K 19/406
. . .
{containing silicon} [2013-01]
C09K 19/408
. . . .
{Polysiloxanes} [2013-01]
C09K 19/42
. .
Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K 19/06 - C09K 19/40 [2016-05]
C09K 19/44
. . .
containing compounds with benzene rings directly linked [2013-01]
C09K 19/46
. . .
containing esters [2013-01]
C09K 19/48
. . .
containing Schiff bases [2013-01]
C09K 19/50
. . .
containing steroidal liquid crystal compounds [2013-01]
C09K 19/52
.
characterised by components which are not liquid crystals, e.g. additives {with special physical aspect: solvents, solid particles} [2013-01]
C09K 2019/521
. .
{Inorganic solid particles} [2013-01]
C09K 2019/523
. .
{Organic solid particles} [2013-01]
C09K 2019/525
. .
{Solvents} [2013-01]
C09K 2019/526
. .
{Gelling agents} [2013-01]
C09K 2019/528
. .
{Surfactants} [2013-01]
C09K 19/54
. .
Additives having no specific mesophase {characterised by their chemical composition} [2013-01]
C09K 19/542
. . .
{Macromolecular compounds} [2013-01]
C09K 19/544
. . . .
{as dispersing or encapsulating medium around the liquid crystal} [2013-01]
C09K 2019/546
. . . .
{creating a polymeric network} [2013-01]
C09K 2019/548
. . . .
{stabilizing the alignment; Polymer stabilized alignment} [2013-01]
C09K 19/56
. . .
Aligning agents [2013-01]
C09K 19/58
. .
Dopants or charge transfer agents [2013-01]
C09K 19/582
. . .
{Electrically active dopants, e.g. charge transfer agents} [2013-01]
C09K 19/584
. . . .
{having a condensed ring system; macrocyclic compounds} [2013-01]
C09K 19/586
. . .
{Optically active dopants; chiral dopants} [2013-01]
C09K 19/588
. . . .
{Heterocyclic compounds} [2013-01]
C09K 19/60
. .
Pleochroic dyes [2013-01]
C09K 19/601
. . .
{Azoic} [2013-01]
C09K 19/603
. . .
{Anthroquinonic} [2013-01]
C09K 19/605
. . .
{Azomethine dyes} [2013-01]
C09K 19/606
. . .
{Perylene dyes} [2013-01]
C09K 19/608
. . .
{Quinoxaline dyes} [2013-01]
​
C09K 21/00
Fireproofing materials (for use in a particular application, see the relevant places, e.g. fireproofing of wood B27K, of polymers C08, of textiles D06M, of paper D21H; fireproof paints C09D 5/18) [2016-05]
NOTE

  • In groups C09K 21/02 - C09K 21/14, in the absence of an indication to the contrary, materials are classified in the last appropriate place.
C09K 21/02
.
Inorganic materials [2013-01]
C09K 21/04
. .
containing phosphorus [2013-01]
C09K 21/06
.
Organic materials [2013-01]
C09K 21/08
. .
containing halogen [2013-01]
C09K 21/10
. .
containing nitrogen [2013-01]
C09K 21/12
. .
containing phosphorus [2013-01]
C09K 21/14
.
Macromolecular materials [2013-01]
​
C09K 23/00
Use of substances as emulsifying, wetting, dispersing, or foam-producing agents [2022-01]
WARNING

C09K 23/002
.
{Inorganic compounds} [2022-01]
C09K 23/003
.
{Organic compounds containing only carbon and hydrogen} [2022-01]
​
C09K 23/005
.
{Organic compounds containing selenium or tellurium} [2022-01]
WARNING

C09K 23/007
.
{Organic compounds containing halogen} [2022-01]
C09K 23/017
.
{Mixtures of compounds} [2022-01]
C09K 23/018
. .
{Mixtures of two or more different organic oxygen-containing compounds} [2022-01]
​
C09K 23/02
.
Alkyl sulfonates or sulfuric acid ester salts derived from monohydric alcohols [2022-01]
WARNING

​
C09K 23/04
.
Sulfonates or sulfuric acid ester salts derived from polyhydric alcohols or amino alcohols or derivatives thereof (sulfated or sulfonated fatty oils C09K 23/08) [2022-01]
WARNING

​
C09K 23/06
.
Esters of higher fatty acids with hydroxyalkylated sulfonic acids or salts thereof [2022-01]
WARNING

​
C09K 23/08
.
Sulfation or sulfonation products of fats, oils, waxes, or higher fatty acids or esters thereof with monovalent alcohols [2022-01]
WARNING

​
C09K 23/10
.
Derivatives of low-molecular-weight sulfocarboxylic acids or sulfopolycarboxylic acids [2022-01]
WARNING

​
C09K 23/12
.
Sulfonates of aromatic or alkylated aromatic compounds [2022-01]
WARNING

​
C09K 23/14
.
Derivatives of phosphoric acid [2022-01]
WARNING

​
C09K 23/16
.
Amines or polyamines [2022-01]
WARNING

​
C09K 23/18
.
Quaternary ammonium compounds [2022-01]
WARNING

​
C09K 23/20
.
Phosphonium and sulfonium compounds [2022-01]
WARNING

​
C09K 23/22
.
Amides or hydrazides [2022-01]
WARNING

C09K 23/24
. .
Amides of higher fatty acids with aminoalkylated sulfonic acids [2022-01]
​
C09K 23/26
.
Sulfonamides [2022-01]
WARNING

​
C09K 23/28
.
Aminocarboxylic acids (proteins and protein hydrolysates C09K 23/30) [2022-01]
WARNING

​
C09K 23/30
.
Proteins; Protein hydrolysates [2022-01]
WARNING

​
C09K 23/32
.
Heterocyclic compounds [2022-01]
WARNING

​
C09K 23/34
.
Higher-molecular-weight carboxylic acid esters (esters of higher fatty acids with hydroxyalkylated sulfonic acids or salts thereof C09K 23/06) [2022-01]
WARNING

C09K 23/36
. .
Esters of polycarboxylic acids [2022-01]
​
C09K 23/38
.
Alcohols, e.g. oxidation products of paraffins [2022-01]
WARNING

​
C09K 23/40
.
Phenols [2022-01]
WARNING

​
C09K 23/42
.
Ethers, e.g. polyglycol ethers of alcohols or phenols [2022-01]
WARNING

  • Groups C09K 23/42 - C09K 23/48 are incomplete pending reclassification of documents from group C09K 23/00.
    All groups listed in this Warning should be considered in order to perform a complete search.
C09K 23/44
. .
Ether carboxylic acids [2022-01]
C09K 23/46
. .
Ethers of aminoalcohols [2022-01]
C09K 23/48
. .
Cellulose ethers [2022-01]
​
C09K 23/50
.
Derivatives of lignin [2022-01]
WARNING

​
C09K 23/52
.
Natural or synthetic resins or their salts [2022-01]
WARNING

​
C09K 23/54
.
Silicon compounds [2022-01]
WARNING

​
C09K 23/56
.
Glucosides; Mucilage; Saponins [2022-01]
WARNING

C09K 2101/00
Agricultural use [2013-01]
C09K 2103/00
Civil engineering use [2013-01]
C09K 2105/00
Erosion prevention [2013-01]
C09K 2107/00
Impermeabilisation [2013-01]
C09K 2109/00
pH regulation [2013-01]
C09K 2200/00
Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers [2013-01]
C09K 2200/02
.
Inorganic compounds [2013-01]
C09K 2200/0204
. .
Elements [2013-01]
C09K 2200/0208
. . .
Carbon [2013-01]
C09K 2200/0213
. . .
Metals [2013-01]
C09K 2200/0217
. .
Salts [2013-01]
C09K 2200/0221
. . .
Halogen-containing compounds [2013-01]
C09K 2200/0226
. . .
Nitrogen-containing compounds [2013-01]
C09K 2200/023
. . .
Sulfur-containing compounds [2013-01]
C09K 2200/0234
. . .
Phosphorous-containing compounds [2013-01]
C09K 2200/0239
. .
Oxides, hydroxides, carbonates [2013-01]
C09K 2200/0243
. .
Silica-rich compounds, e.g. silicates, cement, glass [2013-01]
C09K 2200/0247
. . .
Silica [2013-01]
C09K 2200/0252
. . .
Clays [2013-01]
C09K 2200/0256
. . . .
Bentonite [2013-01]
C09K 2200/026
. . . .
Kaolin [2013-01]
C09K 2200/0265
. . .
Mica [2013-01]
C09K 2200/0269
. .
Ceramics [2013-01]
C09K 2200/0273
. .
Boron-containing compounds [2013-01]
C09K 2200/0278
. .
Fibres [2013-01]
C09K 2200/0282
. . .
Carbon fibres [2013-01]
C09K 2200/0286
. . .
Asbestos [2013-01]
C09K 2200/0291
. . .
Glass fibres [2013-01]
C09K 2200/0295
. . .
Ceramic fibres [2013-01]
C09K 2200/04
.
Non-macromolecular organic compounds [2013-01]
C09K 2200/0405
. .
Hydrocarbons [2013-01]
C09K 2200/0411
. .
Halogen-containing compounds [2013-01]
C09K 2200/0417
. .
Phosphorus-containing compounds [2013-01]
C09K 2200/0423
. .
Boron-containing compounds [2013-01]
C09K 2200/0429
. .
Alcohols, phenols, ethers [2013-01]
C09K 2200/0435
. .
Aldehydes, ketones [2013-01]
C09K 2200/0441
. .
Carboxylic acids, salts, anhydrides or esters thereof [2013-01]
C09K 2200/0447
. .
Fats, fatty oils, higher fatty acids or derivatives thereof [2013-01]
C09K 2200/0452
. .
Carbohydrates or derivatives thereof [2013-01]
C09K 2200/0458
. .
Nitrogen-containing compounds [2013-01]
C09K 2200/0464
. . .
Isocyanates [2013-01]
C09K 2200/047
. . .
Amides, imides, imines, N-oxides [2013-01]
C09K 2200/0476
. . .
Heterocyclic nitrogen compounds, e.g. melamine [2013-01]
C09K 2200/0482
. . .
Peptides, proteins or derivatives thereof [2013-01]
C09K 2200/0488
. .
Sulfur-containing compounds [2013-01]
C09K 2200/0494
. .
Silicon-containing compounds [2013-01]
C09K 2200/06
.
Macromolecular organic compounds, e.g. prepolymers [2013-01]
C09K 2200/0602
. .
Polysaccharides or derivatives thereof [2013-01]
C09K 2200/0605
. .
Lignin-containing compounds [2013-01]
C09K 2200/0607
. .
Rubber or rubber derivatives [2013-01]
C09K 2200/061
. . .
Butyl rubber [2013-01]
C09K 2200/0612
. . .
Butadiene-acrylonitrile rubber [2013-01]
C09K 2200/0615
. .
obtained by reactions only involving carbon-to-carbon unsaturated bonds [2013-01]
C09K 2200/0617
. . .
Polyalkenes [2013-01]
C09K 2200/062
. . . .
Polyethylene [2013-01]
C09K 2200/0622
. . .
Polyvinylalcohols, polyvinylacetates [2013-01]
C09K 2200/0625
. . .
Polyacrylic esters or derivatives thereof [2013-01]
C09K 2200/0627
. . . .
Nitrogen-containing polymers, e.g. polyacrylamide [2013-01]
C09K 2200/063
. . .
Polyacrylonitriles [2013-01]
C09K 2200/0632
. . .
Polystyrenes [2013-01]
C09K 2200/0635
. . .
Halogen-containing polymers, e.g. PVC [2013-01]
C09K 2200/0637
. . . .
Fluoro-containing polymers, e.g. PTFE [2013-01]
C09K 2200/064
. . .
Coumarone polymers [2013-01]
C09K 2200/0642
. .
Copolymers containing at least three different monomers [2013-01]
C09K 2200/0645
. .
obtained otherwise than by reactions involving carbon-to-carbon unsaturated bonds [2013-01]
C09K 2200/0647
. . .
Polyepoxides [2013-01]
C09K 2200/065
. . .
Polyurethanes [2013-01]
C09K 2200/0652
. . .
Polyisocyanates [2013-01]
C09K 2200/0655
. . .
Polyesters [2013-01]
C09K 2200/0657
. . .
Polyethers [2013-01]
C09K 2200/066
. . . .
Polyester-polyethers [2013-01]
C09K 2200/0662
. . . .
Polyether-polyol [2013-01]
C09K 2200/0665
. . .
Polyurea [2013-01]
C09K 2200/0667
. . .
Polyamides, polyimides [2013-01]
C09K 2200/067
. . .
Condensation polymers of aldehydes or ketones [2013-01]
C09K 2200/0672
. . . .
Phenol-aldehyde condensation polymers [2013-01]
C09K 2200/0675
. . . .
Melamine-formaldehyde condensation polymers [2013-01]
C09K 2200/0677
. . . .
Urea-formaldehyde condensation polymers [2013-01]
C09K 2200/068
. .
Containing also other elements than carbon, oxygen or nitrogen in the polymer main chain [2013-01]
C09K 2200/0682
. . .
Containing sulfur [2013-01]
C09K 2200/0685
. . .
Containing silicon [2013-01]
C09K 2200/0687
. .
Natural resins, e.g. rosin [2013-01]
C09K 2200/069
. .
Bituminous materials, e.g. tar, pitch [2013-01]
C09K 2200/0692
. .
Fibres [2013-01]
C09K 2200/0695
. . .
Polyamide fibres [2013-01]
C09K 2200/0697
. . .
Cellulose fibres [2013-01]
C09K 2205/00
Aspects relating to compounds used in compression type refrigeration systems [2013-01]
C09K 2205/10
.
Components [2013-01]
C09K 2205/102
. .
Alcohols [2013-01]
C09K 2205/104
. .
Carboxylic acid esters [2013-01]
C09K 2205/106
. .
Carbon dioxide [2013-01]
C09K 2205/108
. .
Aldehydes or ketones [2013-01]
C09K 2205/11
. .
Ethers [2013-01]
C09K 2205/112
. . .
Halogenated ethers [2013-01]
C09K 2205/114
. . .
Cyclic ethers [2013-01]
C09K 2205/116
. . .
Halogenated cyclic ethers [2013-01]
C09K 2205/12
. .
Hydrocarbons [2013-01]
C09K 2205/122
. . .
Halogenated hydrocarbons [2013-01]
C09K 2205/124
. . .
Fluorinated cyclic hydrocarbons [2013-01]
C09K 2205/126
. . .
Unsaturated fluorinated hydrocarbons [2013-01]
C09K 2205/128
. . .
Perfluorinated hydrocarbons (C09K 2205/124, C09K 2205/126 take precedence) [2016-08]
C09K 2205/13
. .
Inert gases [2013-01]
C09K 2205/132
. .
containing nitrogen [2013-01]
C09K 2205/134
. .
containing sulfur [2013-01]
C09K 2205/22
.
All components of a mixture being fluoro compounds [2013-01]
C09K 2205/24
.
Only one single fluoro component present [2013-01]
C09K 2205/32
.
The mixture being azeotropic [2013-01]
C09K 2205/34
.
The mixture being non-azeotropic [2013-01]
C09K 2205/40
.
Replacement mixtures [2013-01]
C09K 2205/41
. .
Type R11 [2013-01]
C09K 2205/42
. .
Type R12 [2013-01]
C09K 2205/43
. .
Type R22 [2013-01]
C09K 2205/44
. .
Type R13B1 [2015-10]
C09K 2205/45
. .
Type R500 [2013-01]
C09K 2205/46
. .
Type R501 [2013-01]
C09K 2205/47
. .
Type R502 [2013-01]
C09K 2205/48
. .
Type R503 [2013-01]
C09K 2208/00
Aspects relating to compositions of drilling or well treatment fluids [2013-01]
C09K 2208/02
.
Spotting, i.e. using additives for releasing a stuck drill [2013-01]
C09K 2208/04
.
Hulls, shells or bark containing well drilling or treatment fluids [2013-01]
C09K 2208/06
.
Structured surfactants, i.e. well drilling or treating fluids with a lamellar or spherulitic phase [2013-01]
C09K 2208/08
.
Fiber-containing well treatment fluids [2013-01]
C09K 2208/10
.
Nanoparticle-containing well treatment fluids [2013-01]
C09K 2208/12
.
Swell inhibition, i.e. using additives to drilling or well treatment fluids for inhibiting clay or shale swelling or disintegrating [2017-02]
C09K 2208/14
.
Double emulsions, i.e. oil-in-water-in-oil emulsions or water-in-oil-in-water emulsions [2013-01]
C09K 2208/18
.
Bridging agents, i.e. particles for temporarily filling the pores of a formation; Graded salts [2013-01]
C09K 2208/20
.
Hydrogen sulfide elimination [2013-01]
C09K 2208/22
.
Hydrates inhibition by using well treatment fluids containing inhibitors of hydrate formers [2013-01]
C09K 2208/24
.
Bacteria or enzyme containing gel breakers [2013-01]
C09K 2208/26
.
Gel breakers other than bacteria or enzymes [2013-01]
C09K 2208/28
.
Friction or drag reducing additives [2013-01]
C09K 2208/30
.
Viscoelastic surfactants [VES] [2013-01]
C09K 2208/32
.
Anticorrosion additives [2013-01]
C09K 2208/34
.
Lubricant additives [2013-01]
C09K 2211/00
Chemical nature of organic luminescent or tenebrescent compounds [2013-01]
C09K 2211/10
.
Non-macromolecular compounds [2013-01]
C09K 2211/1003
. .
Carbocyclic compounds [2013-01]
C09K 2211/1007
. . .
Non-condensed systems [2017-02]
C09K 2211/1011
. . .
Condensed systems [2013-01]
C09K 2211/1014
. . .
bridged by heteroatoms, e.g. N, P, Si or B [2013-01]
C09K 2211/1018
. .
Heterocyclic compounds [2013-01]
C09K 2211/1022
. . .
bridged by heteroatoms, e.g. N, P, Si or B [2013-01]
C09K 2211/1025
. . .
characterised by ligands [2021-01]
C09K 2211/1029
. . . .
containing one nitrogen atom as the heteroatom [2013-01]
C09K 2211/1033
. . . . .
with oxygen [2013-01]
C09K 2211/1037
. . . . .
with sulfur [2013-01]
C09K 2211/104
. . . . .
with other heteroatoms [2013-01]
C09K 2211/1044
. . . .
containing two nitrogen atoms as heteroatoms [2013-01]
C09K 2211/1048
. . . . .
with oxygen [2013-01]
C09K 2211/1051
. . . . .
with sulfur [2013-01]
C09K 2211/1055
. . . . .
with other heteroatoms [2013-01]
C09K 2211/1059
. . . .
containing three nitrogen atoms as heteroatoms [2013-01]
C09K 2211/1062
. . . . .
with oxygen [2013-01]
C09K 2211/1066
. . . . .
with sulfur [2013-01]
C09K 2211/107
. . . . .
with other heteroatoms [2013-01]
C09K 2211/1074
. . . .
containing more than three nitrogen atoms as heteroatoms [2013-01]
C09K 2211/1077
. . . . .
with oxygen [2013-01]
C09K 2211/1081
. . . . .
with sulfur [2013-01]
C09K 2211/1085
. . . . .
with other heteroatoms [2013-01]
C09K 2211/1088
. . . .
containing oxygen as the only heteroatom [2013-01]
C09K 2211/1092
. . . .
containing sulfur as the only heteroatom [2013-01]
C09K 2211/1096
. . . .
containing other heteroatoms [2013-01]
C09K 2211/14
.
Macromolecular compounds [2013-01]
C09K 2211/1408
. .
Carbocyclic compounds [2013-01]
C09K 2211/1416
. . .
Condensed systems [2013-01]
C09K 2211/1425
. . .
Non-condensed systems [2013-01]
C09K 2211/1433
. . .
bridged by heteroatoms, e.g. N, P, Si or B [2013-01]
C09K 2211/1441
. .
Heterocyclic [2021-01]
C09K 2211/145
. . .
containing oxygen as the only heteroatom [2013-01]
C09K 2211/1458
. . .
containing sulfur as the only heteroatom [2013-01]
C09K 2211/1466
. . .
containing nitrogen as the only heteroatom [2013-01]
C09K 2211/1475
. . .
containing nitrogen and oxygen as heteroatoms [2013-01]
C09K 2211/1483
. . .
containing nitrogen and sulfur as heteroatoms [2013-01]
C09K 2211/1491
. . .
containing other combinations of heteroatoms [2013-01]
C09K 2211/18
.
Metal complexes [2013-01]
C09K 2211/181
. .
of the alkali metals and alkaline earth metals [2013-01]
C09K 2211/182
. .
of the rare earth metals, i.e. Sc, Y or lanthanide [2013-01]
C09K 2211/183
. .
of the refractory metals, i.e. Ti, V, Cr, Zr, Nb, Mo, Hf, Ta or W [2013-01]
C09K 2211/185
. .
of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd [2013-01]
C09K 2211/186
. .
of the light metals other than alkali metals and alkaline earth metals, i.e. Be, Al or Mg [2013-01]
C09K 2211/187
. .
of the iron group metals, i.e. Fe, Co or Ni [2013-01]
C09K 2211/188
. .
of other metals not provided for in one of the previous groups [2013-01]
C09K 2219/00
Aspects relating to the form of the liquid crystal [LC] material, or by the technical area in which LC material are used [2020-01]
C09K 2219/01
.
in the form of fibres, e.g. fibres after polymerisation of LC precursor [2013-01]
C09K 2219/03
.
in the form of films, e.g. films after polymerisation of LC precursor [2013-01]
C09K 2219/11
.
used in the High Frequency technical field [2013-01]
C09K 2219/13
.
used in the technical field of thermotropic switches [2013-01]
C09K 2219/15
.
used as a medium, in which chemical reactions take place [2013-01]
C09K 2219/17
.
used as a medium, in which detection of chemical compounds takes place [2013-01]
C09K 2323/00
Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition [2020-08]
C09K 2323/02
.
Alignment layer characterised by chemical composition [2020-08]
C09K 2323/021
. .
Inorganic, e.g. glass or silicon oxide [2020-08]
C09K 2323/023
. .
Organic silicon compound, e.g. organosilicon [2020-08]
C09K 2323/025
. .
Polyamide [2020-08]
C09K 2323/027
. .
Polyimide [2020-08]
C09K 2323/0271
. . .
Polyimidfluoride [2020-08]
C09K 2323/0273
. . .
Polyimidmetalo [2020-08]
C09K 2323/03
.
Viewing layer characterised by chemical composition [2020-08]
C09K 2323/031
. .
Polarizer or dye [2020-08]
C09K 2323/033
. .
Silicon compound, e.g. glass or organosilicon [2020-08]
C09K 2323/035
. .
Ester polymer, e.g. polycarbonate, polyacrylate or polyester [2020-08]
C09K 2323/04
.
Charge transferring layer characterised by chemical composition, i.e. conductive [2020-08]
C09K 2323/05
.
Bonding or intermediate layer characterised by chemical composition, e.g. sealant or spacer [2020-08]
C09K 2323/051
. .
Inorganic, e.g. glass or silicon oxide [2020-08]
C09K 2323/053
. .
Organic silicon compound, e.g. organosilicon [2020-08]
C09K 2323/055
. .
Epoxy [2020-08]
C09K 2323/057
. .
Ester polymer, e.g. polycarbonate, polyacrylate or polyester [2020-08]
C09K 2323/059
. .
Unsaturated aliphatic polymer, e.g. vinyl [2020-08]
C09K 2323/06
.
Substrate layer characterised by chemical composition [2020-08]
C09K 2323/061
. .
Inorganic, e.g. ceramic, metallic or glass [2020-08]