IPC Main Group
C08C 19/00 Chemical modification of rubber
Introduced: July 1974
Last revised: January 2006
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- Subclass:
- TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
Related Keywords
RUBBER derivatives
12 direct subcodes
Child Classifications
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- C08C 19/02 Hydrogenation
- C08C 19/04 Oxidation
- C08C 19/08 Depolymerisation
- C08C 19/1 Isomerisation; Cyclisation
- C08C 19/12 Incorporating halogen atoms into the molecule
- C08C 19/2 Incorporating sulfur atoms into the molecule
- C08C 19/22 Incorporating nitrogen atoms into the molecule
- C08C 19/24 Incorporating phosphorus atoms into the molecule
- C08C 19/25 Incorporating silicon atoms into the molecule
- C08C 19/26 Incorporating metal atoms into the molecule
- C08C 19/28 Reaction with compounds containing carbon-to-carbon unsaturated bonds
- C08C 19/3 Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule
Top Applicants
Top 10 applicants by patent filingsfor class C08, 2013–2023, worldwide · Source: EPO PATSTAT
- LG CHEM KR 14,262
- DOW GLOBAL TECHNOLOGIES US 12,486
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 9,858
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 7,877
- CHINESE ACADEMY OF SCIENCES 6,993
- FUJIFILM JP 5,049
- 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 4,923
- SHIN-ETSU CHEMICAL COMPANY JP 4,517
- BOREALIS AT 4,213
- ARKEMA FR 4,098