IPC Main Group
C08G 64/00 Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
Introduced: January 1990
Last revised: January 2006
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- Subclass:
- MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
Related Keywords
POLYCARBONATE(S)
7 direct subcodes
Child Classifications
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- C08G 64/02 Aliphatic polycarbonates
- C08G 64/04 Aromatic polycarbonates
- C08G 64/16 Aliphatic-aromatic or araliphatic polycarbonates
- C08G 64/18 Block or graft polymers
- C08G 64/2 General preparatory processes
- C08G 64/4 Post-polymerisation treatment
- C08G 64/42 Chemical after-treatment
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