C08J - Definition fr

Definition statement

This subclass covers:

Chemical aspects of processes for treating, compounding, working-up or recovery of macromolecular substances unless the treatment, compounding, working-up or recovery is provided for elsewhere as indicated below in the relationship section.

Chemical features of manufacture, treatment or coating of articles or shaped materials containing macromolecular substances unless the manufacture, treatment or coating is provided for elsewhere as indicated below in the relationship section.

Chemical aspects of working-up of macromolecular substances to porous or cellular articles or materials and after-treatment thereof unless provided for elsewhere as indicated below in the relationship section.

Chemical aspects of recovery or working-up of waste materials, i.e. macromolecular materials (e.g. polymers), solvents and unreacted monomers, unless provided for elsewhere as indicated below in the relationship section.

Relationship between large subject matter areas

C08J covers general processes or treatments that are not already covered by subclasses C08B, C08C, C08F, C08G and C08H.

C08J is residual to subclasses C08B, C08C, C08F, C08G and C08H in relation to after-treatment of macromolecular substances or polymers, and therefore does not cover:

B29 covers mechanical aspects of working up, after-treatment and compounding of plastics or materials in a plastic state. If a process for working up, after-treatment and compounding of plastics contains both chemical and mechanical aspects, it should be classified in both B29 and C08J.

When classifying in this subclass, additional classification(s) are made from subclass C08L, relating to essential or characterising materials used.

References relevant to classification in this subclass

This subclass does not cover:

Manufacture of semi-permeable membranes for separation processes or apparatus.

B01D 67/00-B01D 71/00

Mechanical aspects of shaping of plastics or substances in a plastic state for the production of porous or cellular articles

B29C, B29C 67/20

Mechanical aspects

B29C 35/00

Plasticisers

C08K

Crosslinking agents

C08K

Coating articles of macromolecular substances with metallic materials.

C23C, C25D

Examples of places where the subject matter of this subclass is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

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

Informative references

Attention is drawn to the following places, which may be of interest for search:

Shaping or working of foodstuffs.

A01J, A21C, A22C, A47J, B02C

Making microballoons

B01J 13/02

Layered products, manufacture thereof

B32B

Coating compositions, e. g. paints, varnishes; lacquers; filling pastes; chemical paint or ink removers; inks; correcting fluids; woodstains; pastes or solids for colouring or printing and use of materials therefore.

C09D

Destructive distillation of carbonaceous materials for production of gas, coke, tar or similar materials.

C10B

Processes of working-up tar, pitch asphalt and bitumen and production of pyroligneous acid.

C10C

Cracking hydrocarbon oils, production of liquid hydrocarbon mixtures, e.g. by destructive hydrogenation, oligomerisation, polymerisation; recovery of hydrocarbon oils from oil-shale, oil-sand or gases; refining mixtures mainly consisting of hydrocarbons; reforming naphtha; mineral waxes.

C10G

Manufacture of artificial filaments, threads, fibres, bristles or ribbons.

D01F

Treatment of textiles; laundering; flexible materials not otherwise provided for.

D06

Special rules of classification

In this subclass, in the absence of an indication to the contrary, classification is made in the last appropriate place.

Glossary of terms

In this subclass, the following terms or expressions are used with the meaning indicated:

expandable

includes expanding, pre-expanded or expanded'