CPC Definition - Subclass C08C
Printable version [PDF] | Last Updated Version: 2016.11 |
| TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS Definition statement This place covers:
Relationships with other classification places Homo- or copolymers of dienes are classified in C08F 36/00, C08F 136/00, C08F 236/00. References Limiting references This place does not cover:
Special rules of classification The IPC group C08C1/16 is covered by C08C 1/14. Glossary of terms In this place, the following terms or expressions are used with the meaning indicated:
Synonyms and Keywords In patent documents, the following abbreviations are often used:
Treatment of rubber latex Definition statement This place covers: Chemical or physical treatment of rubber latex before or during concentration, e.g. purifying, deproteinising, preservation of rubber latex or concentrating Coagulation References Informative references Attention is drawn to the following places, which may be of interest for search:
Treatment of rubber solutions Definition statement This place covers: Treatment of rubber solutions, e.g. by purification, removal of catalyst residues or wining of rubber from solutions. Treatment of coagulated rubber Definition statement This place covers: Treatment of coagulated rubber, e.g. by purification Chemical modification of rubber Definition statement This place covers: Chemical modification of rubber, e.g. hydrogenation, oxidation, depolymerisation, isomerisation, cyclisation, incorporation of halogen, sulphur, nitrogen, phosphorus, silicon or metal atoms into the molecule, reaction with compounds containing carbon-to-carbon unsaturated bonds or addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule. References Informative references Attention is drawn to the following places, which may be of interest for search:
Special rules of classification In C08C 19/00 - C08C 19/44, in the absence of an indication to the contrary a process is classified in the last appropriate place. of polymers containing metal atoms exclusively at one or both ends of the skeleton Definition statement This place covers: Processes directed to the addition of a reagent which reacts with a hetero atom or a group containing heteroatoms of the macromolecule containing metal atoms exclusively at one or both ends of the skeleton, i.e. chemical reaction at the end of polymerchains prepared by living polymerization. Glossary of terms In this place, the following terms or expressions are used with the meaning indicated:
|