WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29)

Introduced: September 1968

Description

C08J covers general processing, compounding, and post-treatment operations for organic macromolecular compounds (polymers, rubbers, resins) that are not specifically classified in other C08 subclasses. This includes mixing, blending, plasticizing, cross-linking, vulcanization, and mechanical working-up of polymeric materials to modify their properties or prepare composite formulations. The subclass captures broad processing techniques applicable across multiple polymer types and applications, serving as a residual category for compounding operations and after-treatments not detailed in specialized divisions such as polyurethanes (C08G), elastomers (C08C), or specific polymer synthesis routes.

Title

Titles differ between systems:

IPC: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES , , , or

CPC: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29)

Full Title

Full titles differ between systems:

IPC:

WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES , , , or

CPC:

WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29)

CPC subdivides this area 19x more granularly than IPC with 106 additional codes.

106 codes are CPC-only extensions.

Note: 106 CPC extensions are marked as secondary classification only.

4 shared codes have differing titles between IPC and CPC.

Child Classifications

Navigate with arrow keys, Enter to open

C08J 11/00 Recovery or working-up of waste materials (recovery of plastics B29B17/00; polymerisation processes involving purification or recycling of waste polymers or their depolymerisation products C08B, C08C, C08F, C08G, C08H) since 1974 IPC+CPC Available in IPC and CPC
C08J 2201/00 Foams characterised by the foaming process 2nd only +2 CPC CPC only CPC only
C08J 2203/00 Foams characterized by the expanding agent 2nd only +11 CPC CPC only CPC only
C08J 2205/00 Foams characterised by their properties 2nd only +5 CPC CPC only CPC only
C08J 2207/00 Foams characterised by their intended use 2nd only +5 CPC CPC only CPC only
C08J 2300/00 Characterised by the use of unspecified polymers 2nd only +9 CPC CPC only CPC only
C08J 2301/00 Characterised by the use of cellulose, modified cellulose or cellulose derivatives 2nd only +4 CPC CPC only CPC only
C08J 2303/00 Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products 2nd only +4 CPC CPC only CPC only
C08J 2305/00 Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2301/00 or C08J2303/00 2nd only +8 CPC CPC only CPC only
C08J 2307/00 Characterised by the use of natural rubber 2nd only +1 CPC CPC only CPC only
C08J 2309/00 Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons 2nd only +3 CPC CPC only CPC only
C08J 2311/00 Characterised by the use of homopolymers or copolymers of chloroprene 2nd only +1 CPC CPC only CPC only
C08J 2313/00 Characterised by the use of rubbers containing carboxyl groups 2nd only +1 CPC CPC only CPC only
C08J 2315/00 Characterised by the use of rubber derivatives (C08J2311/00, C08J2313/00 takes precedence) 2nd only +1 CPC CPC only CPC only
C08J 2317/00 Characterised by the use of reclaimed rubber 2nd only CPC only CPC only
C08J 2319/00 Characterised by the use of rubbers not provided for in groups C08J2307/00 - C08J2317/00 2nd only +1 CPC CPC only CPC only
C08J 2321/00 Characterised by the use of unspecified rubbers 2nd only +1 CPC CPC only CPC only
C08J 2323/00 Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers 2nd only +2 CPC CPC only CPC only
C08J 2325/00 Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers 2nd only +2 CPC CPC only CPC only
C08J 2327/00 Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers 2nd only +2 CPC CPC only CPC only