IPC 6 English version
  C23C 12/00 - C23C 18/54  
  
C23C02000-C23C03000
 

SECTION C– CHEMISTRY; METALLURGY


C 23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL (by metallising textiles D 06 M 11/83; decorating textiles by locally metallising D 06 Q 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 H 01 C 17/06); INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL (treating metal surfaces or coating of metals by electrolysis or electrophoresis C 25 D, C 25 F) [2]


C 23 CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL (applying liquids or other fluent materials to surfaces in general B 05; making metal-coated products by extrusion B 21 C 23/22; covering with metal by connecting pre-existing layers to articles, see the relevant places, e.g. B 21 D 39/00, B 23 K; working of metal by the action of a high concentration of electric current on a workpiece using an electrode B 23 H; metallising of glass C 03 C; metallising mortars, concrete, artificial stone, ceramics or natural stone C 04 B 41/00; paints, varnishes, laquers C 09 D; enamelling of, or applying a vitreous layer to, metals C 23 D; inhibiting corrosion of metallic material or incrustation in general C 23 F; single-crystal film growth C 30 B; manufacture of semiconductor devices H 01 L; manufacture of printed circuits H 05 K) [4]


20/

00Chemical coating by decomposition of either solid compounds or suspensions of the coating forming compounds, without leaving reaction products of surface material in the coating (chemical surface reaction C 23 C 8/00, C 23 C 22/00) [4]

Note

 This group covers also suspensions containing non-reactive liquids and reactive solid particles. [4]

20/

02.Coating with metallic material [4]

20/

04..with metals [4]

20/

06.Coating with inorganic material, other than metallic material [4]

20/

08..with compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides [4]


Chemical surface treatment of metallic material by reaction of the surface with a reactive medium (with a reactive gas C 23 C 8/00) [4]


22/

00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals (wash primers C 09 D 5/12) [4]

Notes

(1)This group covers also suspensions containing reactive liquids and non-reactive solid particles. [4]

(2)In groups C 23 C 22/02 to C 23 C 22/86, in the absence of an indication to the contrary, classification is made in the last appropriate place. [4]

(3)Rejuvenating of the bath is classified in the appropriate place for the specific bath composition. [4]

22/

02.using non-aqueous solutions [4]

22/

03..containing phosphorus compounds [4]

22/

04..containing hexavalent chromium compounds [4]

22/

05.using aqueous solutions [5]

22/

06..using aqueous acidic solutions with pH<6 [4,5]

22/

07...containing phosphates [4,5]

22/

08....Orthophosphates [4,5]

22/

10.....containing oxidants [4,5]

22/

12.....containing zinc cations [4,5]

22/

13......containing also nitrate or nitrite anions [4,5]

22/

14......containing also chlorate anions [4,5]

22/

16......containing also peroxy-compounds [4,5]

22/

17......containing also organic acids [4,5]

22/

18.....containing manganese cations [4,5]

22/

20.....containing aluminium cations [4,5]

22/

22.....containing alkaline earth metal cations [4,5]

22/

23....Condensed phosphates [4,5]

22/

24...containing hexavalent chromium compounds [4,5]

22/

26....containing also organic compounds [4,5]

22/

27.....Acids [4,5]

22/

28.....Macromolecular compounds [4,5]

22/

30....containing also trivalent chromium [4,5]

22/

32....containing also pulverulent metals [4,5]

22/

33....containing also phosphates [4,5]

22/

34...containing fluorides or complex fluorides [4,5]

22/

36....containing also phosphates [4,5]

22/

37....containing also hexavalent chromium compounds [4,5]

22/

38.....containing also phosphates [4,5]

22/

40...containing molybdates, tungstates or vanadates [4,5]

22/

42....containing also phosphates [4,5]

22/

43....containing also hexavalent chromium compounds [4,5]

22/

44....containing also fluorides or complex fluorides [4,5]

22/

46...containing oxalates [4,5]

22/

47....containing also phosphates [4,5]

22/

48...not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates [4,5]

22/

50....Treatment of iron or alloys based thereon [4,5]

22/

52....Treatment of copper or alloys based thereon [4,5]

22/

53....Treatment of zinc or alloys based thereon [4,5]

22/

54....Treatment of refractory metals or alloys based thereon [4,5]

22/

56....Treatment of aluminium or alloys based thereon [4,5]

22/

57....Treatment of magnesium or alloys based thereon [4,5]

22/

58....Treatment of other metallic material [4,5]

22/

60..using alkaline aqueous solutions with pH>8 [4,5]

22/

62...Treatment of iron or alloys based thereon [4,5]

22/

63...Treatment of copper or alloys based thereon [4,5]

22/

64...Treatment of refractory metals or alloys based thereon [4,5]

22/

66...Treatment of aluminium or alloys based thereon [4,5]

22/

67....with solutions containing hexavalent chromium [4,5]

22/

68..using aqueous solutions with pH between 6 and 8 [4,5]

22/

70.using melts [4]

22/

72..Treatment of iron or alloys based thereon [4]

22/

73.characterised by the process [4]

22/

74..for obtaining burned-in conversion coatings [4]

22/

76..Applying the liquid by spraying [4]

22/

77..Controlling or regulating of the coating process (controlling or regulating in general G 05) [4]

22/

78.Pretreatment of the material to be coated [4]

22/

80..with solutions containing titanium or zirconium compounds [4]

22/

82.After-treatment [4]

22/

83..Chemical after-treatment [4]

22/

84..Dyeing [4]

22/

86.Regeneration of coating baths [4]


24/

00Coating starting from inorganic powder (spraying of the coating material in molten state C 23 C 4/00; solid state diffusion C 23 C 8/00 to C 23 C 12/00; manufacture of composite layers, workpieces or articles by sintering metallic powder B 22 F 7/00; friction welding B 23 K 20/12) [4]

24/

02.by application of pressure only [4]

24/

04..Impact or kinetic deposition of particles [4]

24/

06..Compressing powdered coating material, e.g. by milling [4]

24/

08.by application of heat or pressure and heat (C 23 C 24/04 takes precedence) [4]

24/

10..with intermediate formation of a liquid phase in the layer [4]


26/

00Coating not provided for in groups C 23 C 2/00 to C 23 C 24/00 [4]

26/

02.applying molten material to the substrate (applying melts to surfaces, in general B 05) [4]


28/

00Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups C 23 C 2/00 to C 23 C 26/00, or by combinations of methods provided for in subclasses C 23 C and C 25 C or C 25 D [4]

28/

02.only coatings of metallic material [4]

28/

04.only coatings of inorganic non-metallic material [4]


30/

00Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process (C 23 C 26/00, C 23 C 28/00 take precedence) [4]

  C23C 12/00 - C23C 18/54