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

Introduced: September 1968

Last revised: July 1974

Classification Context

Section:: CHEMISTRY; METALLURGY
Class:: ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
Subclass:: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES , , , or

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.

Scope Notes

Glossary: expandable includes expanding, pre-expanded or expanded' | Limiting references: Manufacture of semi-permeable membranes for separation processes or apparatus. Mechanical aspects of shaping of plastics or substances in a plastic state for the production of porous or cellular articles , Mechanical aspects Plasticisers Crosslinking agents Coating articles of macromolecular substances with metallic materials. , | Application references: Treatment of macromolecular material specially adapted to enhance its filling properties in mortars, concrete or artificial stone , ,

Related Keywords

polymer EMULSION(S)working-up POLYADDITIONworking-up POLYCONDENSATIONpost POLYMERISATION treatments in generalworking-up POLYMERSworking-up natural RUBBERafter-treatment of synthetic RUBBER polymerisatesworking-up synthetic RUBBERWORKING-UP macromolecular substances in general

6 direct subcodes

Child Classifications

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C08J 11/00 Recovery or working-up of waste materials
C08J 3/00 Processes of treating or compounding macromolecular substances
C08J 5/00 Manufacture of articles or shaped materials containing macromolecular substances
C08J 7/00 Chemical treatment or coating of shaped articles made of macromolecular substances
C08J 9/00 Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
C08J 99/00 Subject matter not provided for in other groups of this subclass