SOLID ANTI-FRICTION
DEVICES, MATERIALS THEREFOR, LUBRICANT OR SEPARANT COMPOSITIONS
FOR MOVING SOLID SURFACES, AND MISCELLANEOUS MINERAL OIL COMPOSITIONS
This class is an integral part of Class 252, as shown by the
position of the box identifying this class in the Class 252 schedule.
As such, this class is subject to the Class Definition and Notes
of Class 252.
A. GENERAL STATEMENT
Patents which contain a claim to a lubricant composition are
placed in this Class as original patents, and are cross-referenced
wherever necessary or desirable. Patents which disclose the use
of claimed compositions as lubricants, and recite no claims to a
use provided for elsewhere, are similarly classified in this Class.
If no composition claims limited to a specific use are recited, and
plural utilities are disclosed, or if composition claims to plural
utilities are recited, reference should be made to the superiority
listing in the (5) note of the Class 252 Definition to determine
the original classification of the patent.
This class provides for:
(1) compositions of matter which are solid antifriction devices
or articles described in terms of their chemical composition,
(2) materials from which said solid antifriction devices or
articles are fashioned,
(3) compositions which serve as lubricants or separants for
moving solid surfaces,
(4) compositions of mineral oils admixed with non-hydrocarbon
materials and not limited to a function or utility provided for
elsewhere in Class 252 or any other class.
B. DETAILED STATEMENT
(1) The solid antifriction devices or articles described in terms
of their chemical composition are characterized by having a lubricant
material as a permanent part of the article or device. This permanence
may be accomplished by permanent coating, impregnation into the interstices
of the article or device, or by being part of the composition of
matter from which the article or device is fashioned. The articles
and devices are further characterized by retention of their shape
during use.
The type of solid antifriction article or device provided for
herein is exemplified by: bearings, rings, seals, journal boxes,
bushings, brakes, clutches, gun wads, or liners for bearings, brakes
or clutches.
Any processes of making such solid antifriction articles or
devices, or peculiar to making such articles or devices, for which
there is no provision elsewhere are provided for herein.
Mere or nominal use of such solid antifriction articles or devices
as lubricating elements is provided for herein, if there is no provision
elsewhere.
(2) The discussion of solid antifriction articles and devices
in the Detailed Statement, paragraph 1, supra, is generally applicable
also to the materials from which these articles and devices are
fashioned.
The materials provided for herein from which said solid antifriction
articles or devices are made are the aggregate materials, not individual
components of the materials or anything less than the entirety of
the material suitable to be fashioned into said article or device.
(3) The lubricant or separant compositions for moving solid
surfaces provided for herein may be liquid, plastic, or fluent compositions
specialized and designed for use between two relatively moving surfaces
and in contact therewith for reducing friction therebetween or preventing
said surfaces from contacting each other. The compositions must
include at least one component that is not a hydrocarbon (except
if the hydrocarbon is a solid synthetic polymer).
Any process of making such compositions, or peculiar to making
such compositions, for which there is no provision elsewhere is
provided for herein.
(4) This class is the generic home for mineral oils admixed
with non-hydrocarbon materials and not limited to a function or
utility provided for elsewhere in Class 252 or any other class.
Examples of such compositions are mineral oils mixed with antioxidants,
corrosion inhibitors, gum inhibitors, stabilizers, etc.
SECTION II - NOTES TO THE CLASS DEFINITION
(1)
Note. Components of compositions, if described purely in functional
terms such as "antioxidant," "VI improver," etc.,
will not be considered as determinative of classification. In other
words, one should not classify a claim in a particular subclass
of this class by referring to the specification for the chemical
structure identity of a component described in the claims in purely
functional language. If the claims of a patent are devoid of chemical
structure for the components of a composition, the original classification
of the patent will be subclass 200 or subclass 220, assuming that
the patent claims are not provided for in another class or classes.
(2)
Note. Mere or nominal methods of use of a chemical compound
as a lubricant or separant within the meaning of the class definition
are classified in this class.
(3)
Note. When the term "hydrocarbon" is used in
this class, it means an organic compound which consists exclusively
of carbon and hydrogen.
(4)
Note. When a component of a composition classified in this
Class (508) is of indeterminate chemical structure, the following principles
shall apply to the classification thereof:
(a)
a number of subclasses herein provide for components of a
composition described in terms of their being reaction products
of indeterminate structure derived from the reaction of a particular
type compound of known structure.
(b)
a composition component of indeterminate structure that can
not be classified as described in (a), supra, shall be classified by
considering two additional possible methods for classifying it and
employing the one which results in the highest classification in
the class. The two methods are: (1) Classify according to a partial
structure known to be part of the component. (2) Classify based
on a reactant utilized to make the component, and place in the highest
reactant classification, with priority given to organic reactants.
If no organic reactants are used, classify based on the highest
inorganic reactant classification.
SECTION III - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS
(1)
Note. When the expression "organic compound" is
used in this class, it means a compound which meets the requirements
of the Class 260 class definition, i.e., the molecule is characterized
by two carbons bonded together, one atom of carbon bonded to at
least one atom of hydrogen or halogen, or one atom of carbon bonded
to at least one atom of nitrogen by a single or double bond. Certain
compounds are exceptions to this rule, i.e., HCN, CN-CN, HNCO, HNCS,
cyanogen halides, cyanamide, fulminic acid and metal carbides. Said
exceptions and all other chemical compounds shall be regarded as
inorganic.
(2)
Note. The organic chemical structure terminology used in this
class is consistent with that used in the Glossary for the Class
532 - Organic Compounds - part of the Class 532-570 Series (Published
May 22, 1984 in Addendum No. 1-Order No. 946) except as otherwise
noted.
(3)
Note. The rules for determining Class placement of the Original
Reference (OR) for claimed chemical compositions are set forth in
the Class Definition of Class 252 in the section LINES WITH OTHER CLASSES
AND WITHIN THIS CLASS, subsection COMPOSITION CLASS SUPERIORITY,
which includes a hierarchical ORDER OF SUPERIORITY FOR COMPOSITION
CLASSES.
Specialized Metallurgical Processes, Compositions
for Use Therein, Consolidated Metal Powder Compositions, and Loose
Metal Particulate Mixtures, appropriate subclasses for a bearing containing a continuous
phase of metal made by consolidating metal particles, particularly
subclass 231 for such a bearing containing molybdenum disulfide
or other solid or other solid lubricant.
Ammunition and Explosives, particularly
subclass 511 for such devices embodying lubricants wherein there
is claimed the structure of the device which is more than a mere
recitation of the composition or of a carrier including a lubricant.
Compositions: coating or Plastic,
subclasses 38.2 through 38.9for compositions used in preparing molds and in
coating molds. These subclasses have not been exhaustively screened for
patents which meet the definition of this Class 508; a search of
these subclasses may thus be appropriate to ensure a complete search.
Metal Treatment,
subclasses 206 through 238for carburizing or nitriding metal substrates using
externally supplied carbon or nitrogen, subclasses 240-287 for processes
of reactive coating of a metal substrate, particularly subclass
246 wherein the reactive coating composition contains a lubricant,
and subclasses 316-319 for carburized or nitrided metal stock. These
subclassees have not been exhaustively screened for patents which
meet the definition of this Class 508; a search of these subclasses, in
particular subclasses 316-319, may thus be appropriate to ensure
a complete search.
Mineral Oils: Processes and Products,
subclasses 14+ for compositions consisting of mineral oils or
mixtures thereof, regardless of the use or function, as for example,
fuels, lubricating oils, etc.
Bearings, appropriate subclasses for bearings that include
lubricants and significant structure of the bearing. Bearings that
include lubricants when claimed solely in terms of the composition
of which they are composed are classified in this class (Class 252).
Colloid Systems and Wetting Agents; Subcombinations
Thereof; Processes of Making, Stabilizing, Breaking, or Inhibiting, appropriate subclasses for subject matter relating
to: colloid systems (such as sols*, emulsions, dispersions,
foams, aerosols, smokes, gels, or pastes) or wetting agents (such
as leveling, penetrating, or spreading); subcombination compositions
of colloid systems containing at least an agent specialized and
designed for or peculiar to use in making or stabilizing colloid
systems; compositions and subcombination compositions specialized
and designed for or peculiar to use in breaking (resolving) or inhibiting
colloid systems; processes of making the compositions or systems
of the class; processes of breaking (resolving) or inhibiting colloid
systems; in each instance, when generically claimed or when there
is no hierarchically superior provision in the USPC for the specifically
claimed art.
Synthetic Resins or Natural Rubbers, appropriate subclasses, particularly Class 523,
subclasses 149+ for a composition containing a synthetic resin
or natural rubbers having utility as a friction element or to processes
of preparing said composition.
Chemistry of Hydrocarbon Compounds,
subclasses 1+ for a composition consisting only of hydrocarbons,
regardless of the use or function, as for example, fuels, lubricating
oils, etc. Such hydrocarbons may not be solid synthetic polymers.
SOLID ANTIFRICTION DEVICE, ARTICLE OR MATERIAL THEREFOR
(i.e., SHAPED SOLID ARTICLES WHICH RETAIN THEIR SHAPE DURING USE, SUCH
AS BEARINGS, RINGS, SEALS, JOURNAL BOXES, BUSHINGS, BRAKES, CLUTCHES,
GUN WADS, JOURNAL BEARINGS, OR LINERS FOR BEARINGS, BRAKES OR CLUTCHES, OR
MATERIAL THEREFOR, WHEREIN A LUBRICANT IS A PERMANENT PART OF THE
SOLID ANTIFRICTION DEVICE, ARTICLE OR MATERIAL, WHETHER BY PERMANENT
COATING, IMPREGNATION INTO THE INTERSTICES THEREOF, OR BY BEING
PART OF THE COMPOSITION) (E.G., SYNTHETIC RESIN TYPE SOLID ANTIFRICTION
DEVICES, ETC.):
This subclass is indented under the class definition. Antifriction devices, articles or materials therefor under
the ... which, in the case of the articles or devices, are: (1)
solid, (2) shaped, (3) shape-retaining during use and (4) characterized
by having a lubricant substance as a permanent part of the device
or article, which permanence may be accomplished by permanent coating,
impregnation into the interstices thereof, or by being part of the
composition from which the article or device is fashioned; the materials
therefor are the aggregate materials which differ from the articles
or devices only in that they have not been shaped.
(1)
Note. This subclass and its indents provide for a backing
which is coated with a layer of lubricating substance, provided that
not enough structure is recited to warrant classification elsewhere.
(2)
Note. This subclass and its indents provide for a backing
which is coated with plural layers only if (a) each layer is a lubricant
layer, and (b) not enough structure is recited to warrant classification elsewhere.
(3)
Note. This subclass and its indents provide for articles,
devices or materials therefor wherein a composition containing metal
powder is sintered, compacted or compressed, only if a lubricant
substance is (1) layered or (2) impregnated on or into the composition
after the composition is sintered, compacted or compressed.
Metal Treatment,
subclasses 206 through 238for carburizing or nitriding metal substrates using
externally supplied carbon or nitrogen, subclasses 240-287 for processes
of reactive coating of a metal substrate, particularly subclass
246 wherein the reactive coating composition contains a lubricant,
and subclasses 316-319 for carburized or nitrided metal stock. These
subclassees have not been exhaustively screened for patents which
meet the definition of this Class 508; a search of these subclasses,
in particular subclasses 316-319, may thus be appropriate to ensure
a complete search.
This subclass is indented under subclass 101. Devices, articles, or materials which contain, in addition
to the animal or plant matter, elemental carbon or graphite.
This subclass is indented under subclass 103. Devices, articles, or materials which contain, in addition
to the elemental or alloyed metal, a fluorine compound.
This subclass is indented under subclass 103. Devices, articles, or materials which contain, in addition
to the elemental or alloyed metal, elemental carbon, coal or graphite.
LUBRICANTS OR SEPARANTS FOR MOVING SOLID SURFACES AND MISCELLANEOUS
MINERAL OIL COMPOSITIONS (E.G., WATER CONTAINING, ETC.):
This subclass is indented under the class definition. Compositions which are miscellaneous mineral oil compositions,
or are lubricants or separants for moving solid surfaces.
(1)
Note. Compositions classifiable in this subclass contain at
least one component that is not a hydrocarbon (except as a solid
synthetic polymer) or a mineral oil.
(2)
Note. This subclass and its indents provide not only for compositions
of lubricants, per se, but also for compositions of additives intended
to enhance the lubricating properties of a lubricant base. An example
of such an additive composition is a viscosity improving additive composition.
(3)
Note. Since additives to lubricant compositions may serve
more than a single purpose, the primary basis of classification
for this subclass and its indents is the chemical structure of the
nonhydrocarbon ingredients of the composition.
(4)
Note. In classifying compositions in this and indented subclasses,
all ingredients intentionally present in the composition are given
equal weight for purposes of classification without regard to the amount
present or whether the component is a lubricant additive or lubricant base.
(5)
Note. An example of a composition provided for herein is an
emulsion of a hydrocarbon oil and water.
This subclass is indented under subclass 110. Processes which are directed to the chemical or physical
treatment of used lubricant compositions of this class for the purpose
of purification or recovery, or to lubricant compositions described
in terms of a method of purification or recovery thereof after use.
(1)
Note. To be classified herein, the process can not simply
be for the purification or recovery of a mineral oil or hydrocarbon lubricating
base. The composition whose purification or recovery is desired
must include at least one component that is not a hydrocarbon (except
if the hydrocarbon is a solid synthetic polymer).
Chemistry of Hydrocarbon Compounds,
subclasses 800+ , for the purification and recovery of mixtures
of hydrocarbons that are neither mineral oils nor solid synthetic
polymers.
This subclass is indented under subclass 110. Compositions which contain a product of indeterminate structure
resulting from a micro-organism culture medium or from a micro-organism"s
metabolic process, or which contain halogenated graphite.
(1)
Note. Examples of components provided for herein are fluorinated
graphite, and the indeterminate product of yeast fermentation of
a water, wood-pulp, rye-meal, and glue mixture.
Colloid Systems and Wetting Agents; Subcombinations
Thereof; Processes of Making, Stabilizing, Breaking, or Inhibiting,
subclass 32 for colloid systems of colloid-sized carbon (e.g., diamond,
graphite) dispersed in primarily organic continuous liquid phase,
subclasses 38+ for colloid systems of colloid-sized bituminous, coal,
or Carbon phase dispersed in aqueous continuous liquid phase, cross-reference
901 for colloid systems of substantially pure elemental carbon (graphite,
lamp black, carbon black, fullerenes); or agents for such systems
or making or stabilizing such systems or agents; in each instance, when
generically claimed or when there is no hierarchically superior
provision in the USPC for the specifically claimed art.
This subclass is indented under subclass 113. Compositions which contain, in addition to the graphite,
coal, or elemental carbon, at least one of fibrous plant matter,
meat, leather, skin, hair, sponge or silk.
(1)
Note. Meat is intended to indicate the flesh of animals.
(2)
Note. Sponge is intended to encompass natural sponge, or synthetic
sponge which is identified as sponge rather than as a particular
chemical substance. If a component is identified both as sponge and
in terms of its chemical structure, said component should be classified
as an original here and should be cross-referenced to the appropriate
chemical structure subclass.
(3)
Note. Hair is intended to encompass the fine, threadlike outgrowths
from the skin of an animal; skin is intended to encompass the outer
covering or integument of an animal body.
(4)
Note. Fibrous plant matter indicates plant matter in which
the plant fibers have not been destroyed.
(5)
Note. Chemically modified cellulose (e.g. CMC, cellulose ethers,
etc.) is not considered as fibrous plant matter.
This subclass is indented under subclass 113. Compositions which contain, in addition to the graphite,
coal or elemental carbon, at least one of carbohydrate gum, turpentine,
animal glue, pitch, tar, natural rubber, agar, naturally occurring
resins, or salts of naturally occurring resins.
(1)
Note. For the definition of naturally occurring resin, see
the definition of subclass 200 in Class 530, Chemistry: Natural
Resins or Derivatives; Peptides or Proteins: Lignins or Reaction
Products Thereof.
(2)
Note. Animal glue is intended to encompass the normally impure
animal matter of proteinaceous nature which found early use as an
adhesive, etc. A substance identified as "glue",
without further elucidation, will be construed as animal glue.
(3)
Note. Carbohydrate gum is intended to encompass the complex
carbohydrate mucilaginous plant stem excretions which normally yield
sugar on hydrolysis. Examples are gum arabic and gum tragacanth.
A substance identified as gum, without further elucidation, will
be construed as carbohydrate gum.
(4)
Note. Tar and pitch are generally considered as mineral oils
for purposes of classification.
This subclass is indented under subclass 113. Compositions which contain, in addition to the graphite,
coal, or elemental carbon, an organic -C(=O)O- compound.
(1)
Note. An organic -C(=O)O- compound is one in which
the carbon of the -C(=O)O- is, or is attached directly
or indirectly by nonionic bonding to, the carbon of an organic compound.
(2)
Note. See Notes to the Class Definition for the definition
of an organic compound.
(3)
Note. An example of a component provided for herein is castor
oil.
This subclass is indented under subclass 116. Compositions wherein the -C(=O)O- group is attached
directly or indirectly to phosphorus, nitrogen, or halogen by nonionic
bonding.
(1)
Note. Examples of components provided for herein are (1) vinyl
pyrrolidone-hexyl methacrylate copolymers and (2) lecithin.
This subclass is indented under subclass 116. Compositions wherein polymerization of an olefinic double
bond in a monomer containing the -C(=O)O- group affords
the organic -C(=O)O- compound.
This subclass is indented under subclass 116. Compositions wherein (1) elemental sulfur is present in
addition to the organic -C(=O)O- compound and the graphite,
coal, or elemental carbon, or (2) the organic -C(=O)O-
compound present is sulfurized.
(1)
Note. Sulfurized compounds are generally the result of reaction
of sulfur or sulfur chloride with the original compound.
(2)
Note. An example of a component provided for herein is sulfurized
sperm oil.
This subclass is indented under subclass 116. Compositions wherein the organic -C(=O)O- compound
is (1) a reaction product of a naturally occurring carboxylic acid
ester wax, which product is of indeterminate structure, or (2) a
naturally occurring carboxylic acid ester wax, per se.
This subclass is indented under subclass 116. Compositions which contain, in addition to the organic -C(=O)O-
compound and the graphite, coal or elemental carbon, a compound
which contains boron or silicon.
(1)
Note. Example of components provided for herein are borax
and silica.
This subclass is indented under subclass 116. Compositions wherein (1) inorganic base is present in addition
to the organic -C(=O)O- compound and the graphite, coal,
or elemental carbon, or (2) the organic -C(=O)O- compound is
a carboxylic acid or salt thereof.
(1)
Note. An example of a component provided for herein is zinc
stearate.
This subclass is indented under subclass 113. Compositions which contain, in addition to the graphite,
coal, or elemental carbon, an elemental metal or a metal alloy.
This subclass is indented under subclass 123. Compositions which contain, in addition to the elemental
metal or metal alloy and the graphite, coal, or elemental carbon,
a compound that contains silicon.
This subclass is indented under subclass 113. Compositions which contain, in addition to the graphite,
coal, or elemental carbon, a boron compound or elemental sulfur.
This subclass is indented under subclass 113. Compositions which contain, in addition to the graphite,
coal, or elemental carbon, a compound that contains silicon.
This subclass is indented under subclass 126. Compositions which contain, in addition to the silicon compound
and the graphite, coal, or elemental carbon, an inorganic compound (excluding
water) that does not contain silicon.
(1)
Note. See Notes to the Class Definition for the definition
of organic compound. Any chemical compound not regarded as organic
therein shall be considered inorganic.
(2)
Note. Water may be present as a component herein, providing
that a further non-siliceous inorganic compound is present.
This subclass is indented under subclass 113. Compositions which contain, in addition to the graphite,
coal, or elemental carbon, an organic nitrogen compound, an organic
phosphorus compound, or an organic sulfur compound.
(1)
Note. An organic nitrogen compound is one in which nitrogen
is attached directly or indirectly by nonionic bonding to carbon
of an organic compound. Organic phosphorus compounds and organic
sulfur compounds are similarly defined.
(2)
Note. See Notes to the Class Definition for the definition
of an organic compound.
This subclass is indented under subclass 113. Compositions which contain, in addition to the graphite,
coal or elemental carbon, an inorganic compound (except water).
(1)
Note. Water may be present as a component herein, provided
that an additional inorganic compound is present.
(2)
Note. See Notes to the Class Definition for the definition
of an organic compound. Any chemical compound not regarded as organic
therein shall be considered inorganic.
This subclass is indented under subclass 113. Compositions which contain, in addition to the graphite,
coal, or elemental carbon, an organic oxygen compound or an organic
halogen compound.
(1)
Note. An organic oxygen compound is one in which oxygen is
attached directly or indirectly by nonionic bonding to carbon of
an organic compound. Organic halogen compounds are similarly defined.
(2)
Note. See Notes to the Class Definition for the definition
of an organic compound.
This subclass is indented under subclass 113. Compositions which contain, in addition to the graphite,
coal, or elemental carbon, a polymer prepared by synthetic means.
This subclass is indented under subclass 110. Compositions which contain a chemically reacted tar, a chemically
reacted tar distillate, a tar distillate, or tar.
(1)
Note. Tar and tar distillate are generally considered as mineral
oils.
(2)
Note. An example of chemically reacted tar provided for herein
is sulfurized tar.
This subclass is indented under subclass 110. Compositions which contain chemically reacted asphalt, chemically
reacted pitch, pitch distillate, pitch, or asphalt.
(1)
Note. Pitch, pitch distillate, and asphalt are generally considered
as mineral oils.
This subclass is indented under subclass 133. Compositions which contain, in addition to the asphalt,
pitch, pitch distillate, or chemically reacted asphalt or pitch,
a carboxylic acid or salt thereof.
(1)
Note. An example of a component provided for herein is lead
naphthenate.
This subclass is indented under subclass 110. Compositions which contain residues from distillation of
crude chemical reaction mixtures, or the chemical reaction products
of such residues.
(1)
Note. The reaction of carbon monoxide, olefin, and hydrocarbon
is referred to as the "oxo" reaction. Desired
products are generally removed from the reaction mixture by a distillation
process. The residue remaining in the still pot after distillation,
a mixture of diverse compounds, is an example of the materials encompassed
by this subclass.
This subclass is indented under subclass 110. Compositions which contain silicon dioxide, silicic acid,
orthosilicate, or metasilicate; these materials may be present either
per se or in a surface-treated state.
(1)
Note. Surface-treated encompasses both physical and chemical
surface treatment. Silicon dioxide, e.g., may be simply coated,
or its outer layer may be made to chemically react with a surface
treating agent.
(2)
Note. Silicon dioxide is also known as silica, SiO2.
(3)
Note. Silicic acids encompass inorganic compounds wherein
silicon is bonded directly to a hydroxyl group.
(4)
Note. An inorganic compound is any compound not specified
to be organic in (3) Note of the class definition.
(5)
Note. Orthosilicates (M4SiO4)
and metasilicates (M2SiO3)
may combine to form polysilicates, M being metal or in some cases
ammonium. They are salts derived from silica or the silicic acids.
All the common clays are included under this umbrella.
Colloid Systems and Wetting Agents; Subcombinations
Thereof; Processes of Making, Stabilizing, Breaking, or Inhibiting,
subclasses 31+ for colloid systems of colloid-sized solid or semisolid
phase dispersed in primarily organic continuous liquid phase, subclasses
38+ for colloid systems of colloid-sized bituminous, coal,
or Carbon phase dispersed in aqueous continuous liquid phase, subclasses
77+ for colloid systems of colloid-sized solid phase dispersed
in aqueous continuous liquid phase; subclasses 98+ for colloid
systems of continuous or semicontinuous solid phase with discontinuous
liquid phase (gels, pastes, flocs, coagulates); or agents for such systems
or making or stabilizing such systems or agents; in each instance, when
generically claimed or when there is no hierarchically superior
provision in the USPC for the specifically claimed art.
This subclass is indented under subclass 136. Compositions which contain, in addition to the silicon dioxide,
silicic acid, metasilicate, or orthosilicate, a compound that contains
boron but does not contain silicon; the compound may be present
as an additional component or as a surface-treating agent for the
silicon dioxide, silicic acid, orthosilicate, or metasilicate.
(1)
Note. Examples of components provided for herein are boron
nitride, boric acid, and trialkyl borate.
This subclass is indented under subclass 136. Compositions which contain, in addition to the silicon dioxide,
silicic acid, orthosilicate, or metasilicate, a polymer that contains
fluorine but does not contain silicon; the polymer may be present
as an additional component or as a surface-treating agent for the
silicon dioxide, silicic acid, orthosilicate, or metasilicate.
(1)
Note. An example of a component provided for herein is polytetrafluoroethylene.
This subclass is indented under subclass 136. Compositions which contain, in addition to the silicon dioxide,
silicic acid, orthosilicate or metasilicate, an alloy, elemental
metal, or elemental sulfur; the elemental sulfur, alloy, or elemental
metal may be present as an additional component or as a surface-treating
agent for the silicon dioxide, silicic acid, orthosilicate, or metasilicate.
This subclass is indented under subclass 136. Compositions which contain, in addition to the silicon dioxide,
silicic acid, orthosilicate, or metasilicate, a compound which contains heavy
metal or aluminum but does not contain silicon; the compound may
be present as an additional component or as a surface-treating agent
for the silicon dioxide, silicic acid, orthosilicate, or metasilicate.
(1)
Note. Examples of components provided for herein are molybdenum
sulfide and aluminum sulfate.
(2)
Note. Arsenic is considered a heavy metal.
(3)
Note. Heavy metals are those with a specific gravity greater
than 4.0.
This subclass is indented under subclass 136. Compositions which contain, in addition to the silicon dioxide,
silicic acid, orthosilicate, or metasilicate, a carbohydrate or
fibrous plant matter; the fibrous plant matter or carbohydrate may
be present as an additional component or as a surface-treating agent
for the silicon dioxide, silicic acid, orthosilicate, or metasilicate.
(1)
Note. Examples of components provided for herein are dextrine
and elm bark.
This subclass is indented under subclass 136. Compositions which contain, in addition to the silicon dioxide,
silicic acid, orthosilicate, or metasilicate, water that has been
intentionally added.
This subclass is indented under subclass 136. Compositions which contain, in addition to the silicon dioxide,
silicic acid, orthosilicate, or metasilicate, a carboxylic acid,
a carboxylic acid salt, a sulfonic acid, or a sulfonic acid salt; the
carboxylic acid, sulfonic acid, or salts may be present as an additional
component or as a surface-treating agent for the silicon dioxide, silicic
acid, orthosilicate, or metasilicate.
This subclass is indented under subclass 136. Compositions which contain, in addition to the silicon dioxide,
silicic acid, orthosilicate or metasilicate, a compound that contains
a triazine hetero ring or a triazole hetero ring; the compound may
be present as an additional component or as a surface-treating agent
for the silicon dioxide, silicic acid, orthosilicate, or metasilicate.
(1)
Note. A triazine hetero ring consists of three ring carbons
and three ring nitrogens. A triazole hetero ring consists of two
ring carbons and three ring nitrogens.
This subclass is indented under subclass 136. Compositions which contain, in addition to the silicon dioxide,
silicic acid, orthosilicate, or metasilicate, a compound which has
a heterocyclic ring having ring sulfur or having chalcogen (i.e.,
oxygen, sulfur, selenium, or tellurium) double bonded to hetero
ring carbon; the compound may be present as an additional component
or as a surface-treating agent for the silicon dioxide, silicic
acid, orthosilicate, or metasilicate.
This subclass is indented under subclass 136. Compositions which contain, in addition to the silicon dioxide,
silicic acid, orthosilicate, or metasilicate, an azo compound, an
inorganic compound that is a phosphorus salt, or an oxidate of indeterminate
composition; the azo compound, inorganic compound, or oxidate may
be present as an additional component or as a surface-treating agent
for the silicon dioxide, silicic acid, orthosilicate, or metasilicate.
(1)
Note. An azo compound is an organic compound characterized
by the group -N=N- wherein both nitrogens are acyclic and
each is bonded directly to carbon.
(2)
Note. See Notes to the Class Definition for the definition
of an organic compound.
This subclass is indented under subclass 136. Compositions which contain talc, mica, or ultramarine blue,
any of which may or may not be surface-treated.
(1)
Note. Talc is 3MgO-4SiO2-H2O.
It is also called soapstone, French chalk, steatite, etc.
(2)
Note. Ultramarine blue is of the approximate formula
This subclass is indented under subclass 150. Compositions which contain, in addition to the metal alloy
or elemental metal, a compound that contains nitrogen, sulfur, or
halogen.
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