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IPC 7
C23G-C23G00506

SECTION C – CHEMISTRY; METALLURGY


C 23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL (by metallising textiles D06M 11/83; decorating textiles by locally metallising D06Q 1/04); CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL (for specific applications, see the relevant places, e.g. for manufacturing resistors H01C 17/06); INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL (treating metal surfaces or coating of metals by electrolysis or electrophoresis C25D, C25F) [2]


C 23 GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS (polishing compositions C09G; detergents in general C11D)


Note

 Processes using enzymes or micro-organisms in order to:

 (i)liberate, separate or purify a pre-existing compound or composition, or to

 (ii)treat textiles or clean solid surfaces of materials

 are further classified in subclass C12S.  [5]



1/

00Cleaning or pickling metallic material with solutions or molten salts (with organic solvents C23G 5/02)

1/

02.with acid solutions

1/

04..using inhibitors

1/

06...organic inhibitors

1/

08..Iron or steel

1/

10..Other heavy metals

1/

12..Light metals

1/

14.with alkaline solutions

1/

16..using inhibitors

1/

18...Organic inhibitors

1/

19..Iron or steel  [4]

1/

20..Other heavy metals  [4]

1/

22..Light metals

1/

24.with neutral solutions

1/

26..using inhibitors

1/

28.with molten salts

1/

30..using inhibitors

1/

32..Heavy metals

1/

34..Light metals

1/

36.Regeneration of waste pickling liquors


3/

00Apparatus for cleaning or pickling metallic material (with organic solvents C23G 5/04)

3/

02.for cleaning wires, strips, filaments continuously

3/

04.for cleaning pipes


5/

00Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents

Note

 In groups C23G 5/02 to C23G 5/06, in the absence of an indication to the contrary, classification is made in the last appropriate place.  [4]

5/

02.using organic solvents

5/

024..containing hydrocarbons  [4]

5/

028..containing halogenated hydrocarbons  [4]

5/

032..containing oxygen-containing compounds  [4]

5/

036...having also nitrogen  [4]

5/

04..Apparatus

5/

06.using emulsions  [4]

  
 

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