Cooperative Patent Classification

Indent Level

Version: 2016.11
CPC
COOPERATIVE PATENT CLASSIFICATION
C23G
CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS (polishing compositions C09G; detergents in general C11D) [2013-01]
C23G 1/00
Cleaning or pickling metallic material with solutions or molten salts (with organic solvents C23G 5/02) [2013-01]
C23G 1/02
.
with acid solutions [2013-01]
C23G 1/025
. .
{acidic pickling pastes} [2013-01]
C23G 1/04
. .
using inhibitors [2013-01]
C23G 1/06
. . .
organic inhibitors [2016-05]
NOTE

C23G 1/061
. . . .
{nitrogen-containing compounds} [2013-01]
C23G 1/063
. . . .
{heterocyclic compounds} [2013-01]
C23G 1/065
. . . .
{sulfur-containing compounds} [2013-01]
C23G 1/066
. . . .
{phosphorus-containing compounds} [2013-01]
C23G 1/068
. . . .
{compounds containing a C=C bond} [2013-01]
C23G 1/08
. .
Iron or steel [2016-05]
NOTE

C23G 1/081
. . .
{solutions containing H2SO4} [2013-01]
C23G 1/083
. . .
{solutions containing H3PO4} [2013-01]
C23G 1/085
. . .
{solutions containing HNO3} [2013-01]
C23G 1/086
. . .
{solutions containing HF} [2013-01]
C23G 1/088
. . .
{solutions containing organic acids} [2013-01]
C23G 1/10
. .
Other heavy metals [2013-01]
C23G 1/103
. . .
{copper or alloys of copper} [2013-01]
C23G 1/106
. . .
{refractory metals} [2013-01]
C23G 1/12
. .
Light metals [2013-01]
C23G 1/125
. . .
{aluminium} [2013-01]
C23G 1/14
.
with alkaline solutions [2013-01]
C23G 1/16
. .
using inhibitors [2013-01]
C23G 1/18
. . .
Organic inhibitors [2013-01]
C23G 1/19
. .
Iron or steel [2013-01]
C23G 1/20
. .
Other heavy metals [2013-01]
C23G 1/205
. . .
{refractory metals} [2013-01]
C23G 1/22
. .
Light metals [2013-01]
C23G 1/24
.
with neutral solutions [2013-01]
C23G 1/26
. .
using inhibitors [2013-01]
C23G 1/28
.
with molten salts [2013-01]
C23G 1/30
. .
using inhibitors [2013-01]
C23G 1/32
. .
Heavy metals [2013-01]
C23G 1/34
. .
Light metals [2013-01]
C23G 1/36
.
Regeneration of waste pickling liquors [2013-01]
C23G 3/00
Apparatus for cleaning or pickling metallic material (with organic solvents C23G 5/04; {apparatus for continuously conveying articles into baths B65G}) [2013-01]
C23G 3/02
.
for cleaning wires, strips, filaments continuously [2013-01]
C23G 3/021
. .
{by dipping} [2013-01]
C23G 3/022
. . .
{the objects following a helicoidal path} [2013-01]
C23G 3/023
. .
{by spraying} [2013-01]
C23G 3/024
. .
{by a combination of dipping and spraying} [2013-01]
C23G 3/025
. .
{Details of the apparatus, e.g. linings or sealing means} [2013-01]
C23G 3/026
. . .
{for guiding the objects} [2013-01]
C23G 3/027
. .
{Associated apparatus, e.g. for pretreating or after-treating} [2013-01]
C23G 3/028
. . .
{for thermal or mechanical pretreatment} [2013-01]
C23G 3/029
. . .
{for removing the pickling fluid from the objects} [2013-01]
C23G 3/04
.
for cleaning pipes [2013-01]
C23G 5/00
Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents [2013-01]
NOTE

  • Mixtures of organic solvents are classified according to the major component
C23G 5/02
.
using organic solvents [2013-01]
C23G 5/024
. .
containing hydrocarbons [2013-01]
C23G 5/028
. .
containing halogenated hydrocarbons [2013-01]
C23G 5/02803
. . .
{containing fluorine} [2013-01]
C23G 5/02806
. . .
{containing only chlorine as halogen atom} [2013-01]
C23G 5/02809
. . .
{containing chlorine and fluorine} [2013-01]
C23G 5/02812
. . . .
{Perhalogenated hydrocarbons} [2013-01]
C23G 5/02816
. . . . .
{Ethanes} [2013-01]
C23G 5/02819
. . . . . .
{C2Cl3F3} [2013-01]
C23G 5/02822
. . . . . .
{C2Cl4F2} [2013-01]
C23G 5/02825
. . . .
{containing hydrogen} [2013-01]
C23G 5/02829
. . . . .
{Ethanes} [2013-01]
C23G 5/02832
. . . . . .
{C2H3Cl2F} [2013-01]
C23G 5/02835
. . . . . .
{C2H2Cl2F2} [2013-01]
C23G 5/02838
. . . . . .
{C2HCl2F3} [2013-01]
C23G 5/02841
. . . . .
{Propanes} [2013-01]
C23G 5/02845
. . . . . .
{C3H3ClF4} [2013-01]
C23G 5/02848
. . . . . .
{C2H2Cl2F4} [2013-01]
C23G 5/02851
. . . . . .
{C2HCl2F5} [2013-01]
C23G 5/02854
. . .
{characterised by the stabilising or corrosion inhibiting additives} [2013-01]
C23G 5/02858
. . . .
{Hydrocarbons} [2013-01]
C23G 5/02861
. . . .
{Oxygen-containing compounds} [2013-01]
C23G 5/02864
. . . . .
{Alcohols} [2013-01]
C23G 5/02867
. . . . . .
{aliphatic} [2013-01]
C23G 5/0287
. . . . . .
{aromatic} [2013-01]
C23G 5/02874
. . . . .
{Aldehydes or ketones} [2013-01]
C23G 5/02877
. . . . .
{Ethers} [2013-01]
C23G 5/0288
. . . . .
{Epoxy compounds} [2013-01]
C23G 5/02883
. . . .
{Nitrogen-containing compounds} [2013-01]
C23G 5/02887
. . . . .
{Nitro-compounds} [2013-01]
C23G 5/0289
. . . . .
{N-heterocyclics} [2013-01]
C23G 5/02893
. . . .
{Sulfur-containing compounds} [2013-01]
C23G 5/02896
. . . .
{Phosphorus-containing compounds} [2013-01]
C23G 5/032
. .
containing oxygen-containing compound [2013-01]
C23G 5/036
. . .
having also nitrogen [2013-01]
C23G 5/04
. .
Apparatus [2013-01]
C23G 5/06
.
using emulsions [2013-01]