IPC 7 English version C25D 11/00-C25D 21/22

C25D01100-C25D02122

SECTION C – CHEMISTRY; METALLURGY

C 25

ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR (electrodialysis, electro-osmosis, separation of liquids by electricity B01D; working of metal by the action of a high concentration of electric current B23H; treatment of water, waste water or sewage by electrochemical methods C02F 1/46; surface treatment of metallic material or coating involving at least one process provided for in class C23 and at least one process covered by this class C23C 28/00, C23F 17/00; anodic or cathodic protection C23F; single-crystal growth C30B; metallising textiles D06M 11/83; decorating textiles by locally metallising D06Q 1/04; electrochemical methods of analysis G01N; electrochemical measuring, indicating or recording devices G01R; electrolytic circuit elements, e.g. capacitors, H01G; electrochemical current or voltage generators H01M) [4]

C 25 D

PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING (decorating textiles by metallising D06Q 1/04; manufacturing printed circuits by metal deposition H05K 3/18); JOINING WORKPIECES BY ELECTROLYSIS; APPARATUS THEREFOR [2,6]

11/

Electrolytic coating by surface reaction, i.e. forming conversion layers [2]

11/

Anodisation [2]

11/

of aluminium or alloys based thereon [2]

11/

characterised by the electrolytes used [2]

11/

containing inorganic acids [2]

11/

containing organic acids [2]

11/

Anodising more than once, e.g. in different baths [2]

11/

Producing integrally coloured layers [2]

11/

Pretreatment [2]

11/

After-treatment, e.g. pore-sealing (lacquering B44D) [2]

11/

Electrolytic after-treatment [2]

11/

for colouring layers [2]

11/

Chemical after-treatment [2]

11/

of refractory metals or alloys based thereon [2]

11/

of actinides or alloys based thereon [2]

11/

of magnesium or alloys based thereon [2]

11/

of semiconducting materials [2]

11/

of metals or alloys not provided for in groups C25D 11/04 to C25D 11/32 [2]

11/

Phosphatising [2]

11/

Chromatising [2]

13/

Electrophoretic coating (C25D 15/00 takes precedence; apparatus for continuously conveying articles into baths B65G, e.g. B65G 49/00; compositions for electrophoretic coating C09D 5/44) [2]

13/

with inorganic material [2]

13/

with organic material [2]

13/

polymers [2]

13/

by polymerisation in situ of monomeric materials [2]

13/

characterised by the additives used [2]

13/

characterised by the article coated [2]

13/

Tubes; Rings; Hollow bodies [2]

13/

Wires; Strips; Foils [2]

13/

using modulated, pulsed or reversing current [2]

13/

Pretreatment [2]

13/

Servicing or operating [2]

13/

Regeneration of process liquids [2]

15/

Electrolytic or electrophoretic production of coatings containing embedded materials, e.g. particles, whiskers, wires [2]

15/

Combined electrolytic and electrophoretic processes [2]

17/

Constructional parts, or assemblies thereof, of cells for electrolytic coating (apparatus for continuously conveying articles into baths B65G, e.g. B65G 49/00; electric devices, see the relevant places, e.g. H01B, H02G) [2]

17/

Tanks; Installations therefor [2]

17/

External supporting frames or structures [2]

17/

Suspending or supporting devices for articles to be coated [2]

17/

Racks [2]

17/

Electrodes [2]

17/

Shape or form (C25D 17/14 takes precedence) [2]

17/

for pad-plating [2]

17/

Apparatus for electrolytic coating of small objects in bulk [2]

17/

having closed containers [2]

17/

Horizontal barrels [2]

17/

having open containers [2]

17/

Oblique barrels [2]

17/

Oscillating baskets [2]

17/

with means for moving the objects individually through the apparatus during the treatment [2]

19/

Electrolytic coating plants [2]

21/

Processes for servicing or operating cells for electrolytic coating [2]

21/

Heating or cooling [2]

21/

Removal of gases or vapours [2]

21/

Filtering [2]

21/

Rinsing [2]

21/

Agitating of electrolytes; Moving of racks [2]

21/

Use of protective surface layers on electrolytic baths [3]

21/

Process control or regulation (controlling or regulating in general G05) [2]

21/

Controlled addition of electrolyte components [2]

21/

Regeneration of process solutions [2]

21/

of electrolytes (C25D 21/22 takes precedence) [2]

21/

of rinse-solutions (C25D 21/22 takes precedence) [2]

21/

by ion-exchange [2]

C25D - C25D 9/12