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IPC 7
C08J-C08J01128

SECTION C – CHEMISTRY; METALLURGY


C 08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON (manufacture or treatment of artificial threads, fibres, bristles or ribbons D01)


C 08 JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G (mechanical aspects B29; layered products, manufacture thereof B32B; treatment of macromolecular material specially adapted to enhance its filling properties in mortars, concrete or artificial stone C04B 16/04, C04B 18/20, C04B 20/00; treatment of textiles D06) [2]


Notes

(1)This subclass covers processes, not covered by subclasses C08B to C08H, for treating polymers.  [4]

(2)In this subclass, in the absence of an indication to the contrary, classification is made in the last appropriate place.  [2]

(3)In this subclass, it is desirable to add the indexing codes of subclass C08L. The indexing codes should be unlinked.  [5]



3/

00Processes of treating or compounding macromolecular substances  [2]

3/

02.Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques  [2]

3/

03..in aqueous media  [5]

3/

05...from solid polymers  [5]

3/

07...from polymer solutions  [5]

3/

075...Macromolecular gels  [6]

3/

09..in organic liquids  [5]

3/

11...from solid polymers  [5]

3/

12.Powdering or granulating  [2]

3/

14..by precipitation from solutions  [2]

3/

16..by coagulating dispersions  [2]

3/

18.Plasticising macromolecular compounds (plasticisers C08K)  [2]

3/

20.Compounding polymers with additives, e.g. colouring  [2]

3/

205..in the presence of a liquid phase  [5]

3/

21...the polymer being premixed with a liquid phase  [5]

3/

215....at least one additive being also premixed with a liquid phase  [5]

3/

22..using masterbatch techniques  [2]

3/

24.Crosslinking, e.g. vulcanising, of macromolecules (mechanical aspects B29C 35/00; crosslinking agents C08K)  [2]

3/

26..of latex  [2]

3/

28.Treatment by wave energy or particle radiation  [2]


5/

00Manufacture of articles or shaped materials containing macromolecular substances (shaping of foodstuffs A23P; manufacture of semi-permeable membranes B01D 67/00 to B01D 71/00; mechanical features, see the relevant classes, e.g. B29) [2]

5/

02.Direct processing of dispersions, e.g. latex, to articles  [2]

5/

04.Reinforcing macromolecular compounds with loose or coherent fibrous material (after-treatment of threads during manufacture D01F)  [2]

5/

06..using pretreated fibrous materials  [2]

5/

08...glass fibres  [2]

5/

10..characterised by the additives used in the polymer mixture  [2]

5/

12.Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives  [2]

5/

14.Manufacture of abrasive or friction articles or materials  [2]

5/

16.Manufacture of articles or materials having reduced friction  [2]

5/

18.Manufacture of films or sheets  [2]

5/

20.Manufacture of shaped structures of ion-exchange resins  [2]

5/

22..Films, membranes or diaphragms  [2]

5/

24.Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs  [2]


7/

00Chemical treatment or coating of shaped articles made of macromolecular substances (coating with metallic material C23C; electrolytic deposition of metals C25) [2]

7/

02.with solvents, e.g. swelling agents  [2]

7/

04.Coating  [2]

7/

06..with compositions not containing macromolecular substances  [2]

7/

12.Chemical modification  [2]

7/

14..with acids, their salts or anhydrides  [2]

7/

16..with polymerisable compounds  [2]

7/

18...using wave energy or particle radiation  [2]


9/

00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof (mechanical aspects of shaping of plastics or substances in a plastic state for the production of porous or cellular articles B29C; foamed polymeric products of isocyanates or isothiocyanates characterised by the monomers or catalysts used C08G 18/00) [2]

9/

02.using blowing gases generated by the reacting monomers or modifying agents during the preparation or modification of macromolecules  [2]

9/

04.using blowing gases generated by a previously added blowing agent  [2]

9/

06..by a chemical blowing agent  [2]

9/

08...developing carbon dioxide  [2]

9/

10...developing nitrogen  [2]

9/

12..by a physical blowing agent  [2]

9/

14...organic  [2]

Note

 In groups C08J 9/16 to C08J 9/232, the following term is used with the meaning indicated:

 "expandable" includes also expanding, pre-expanded or expanded.  [5]

9/

16.Making expandable particles  [2,5]

9/

18..by impregnating polymer particles with the blowing agent  [2]

9/

20..by suspension polymerisation in the presence of the blowing agent  [2]

9/

22.After-treatment of expandable particles; Forming foamed products  [2,5]

9/

224..Surface treatment  [5]

9/

228..Forming foamed products  [5]

9/

232...by sintering expandable particles  [5]

9/

236...using binding agents  [5]

9/

24.by surface fusion and bonding of particles to form voids, e.g. sintering (of expandable particles C08J 9/232)  [2,5]

9/

26.by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out  [2]

9/

28.by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum  [2]

9/

30.by mixing gases into liquid compositions or plastisols, e.g. frothing with air  [2]

9/

32.from compositions containing micro-balloons, e.g. syntactic foams (making micro-balloons B01J 13/02)  [2]

9/

33.Agglomerating foam fragments, e.g. waste foam  [5]

9/

34.Chemical features in the manufacture of articles consisting of a foamed macromolecular core and a macromolecular surface layer having a higher density than the core  [2]

9/

35.Composite foams, i.e. continuous macromolecular foams containing discontinuous cellular particles or fragments  [5]

9/

36.After-treatment (C08J 9/22 takes precedence)  [2,5]

9/

38..Destruction of cell membranes  [2]

9/

40..Impregnation  [2]

9/

42...with macromolecular compounds  [2]


11/

00Recovery or working-up of waste materials (mechanical treatments B29; polymerisation processes involving purification or recycling of waste polymers or their depolymerisation products C08B, C08C, C08F, C08G, C08H) [4]

11/

02.of solvents, plasticisers or unreacted monomers  [4]

11/

04.of polymers  [2]

11/

06..without chemical reactions  [4]

11/

08...using selective solvents for polymer components (working-up tar by extraction with selective solvents C10C 1/18; working-up pitch, asphalt, bitumen by selective extraction C10C 3/08)  [4]

11/

10..by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation (depolymerisation to the original monomer C07)  [4]

11/

12...by dry-heat treatment only (destructive distillation of carbonaceous materials for production of gas, coke, tar or similar matters C10B)  [4]

11/

14...by treatment with steam or water  [4]

11/

16...by treatment with inorganic material (C08J 11/14 takes precedence)  [4]

11/

18...by treatment with organic material  [4]

11/

20....by treatment with hydrocarbons or halogenated hydrocarbons  [4]

11/

22....by treatment with organic oxygen-containing compounds  [4]

11/

24.....containing hydroxyl groups  [4]

11/

26.....containing carboxylic acid groups, their anhydrides or esters  [4]

11/

28....by treatment with organic compounds containing nitrogen, sulfur or phosphorus  [4]


  
 

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