not containing aliphatic unsaturation

Introduced: January 1990

Full Title

Full titles differ between systems:

IPC:

Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule > Aromatic polycarbonates > not containing aliphatic unsaturation

CPC:

Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule (polycarbonate-amides C08G69/44; polycarbonate-imides C08G73/16) > Aromatic polycarbonates > not containing aliphatic unsaturation

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

IPC defines codes here since 1990.

Child Classifications

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C08G 64/08 containing atoms other than carbon, hydrogen or oxygen since 1990 +5 CPC IPC+CPC Available in IPC and CPC
C08G 64/14 containing a chain-terminating or -crosslinking agent since 1990 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

Class C08,2013–2023, worldwide · Source: EPO PATSTAT

LG CHEM KR 15,432
DOW GLOBAL TECHNOLOGIES US 14,214
BASF (BADISCHE ANILIN & SODA FABRIK) DE 11,155
3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 6,455
FUJIFILM JP 6,178
CHINESE ACADEMY OF SCIENCES 5,569
SHIN-ETSU CHEMICAL COMPANY JP 5,506
SINOPEC (CHINA PETROCHEMICAL CORPORATION) 5,443
TORAY INDUSTRIES JP 4,635
NITTO DENKO CORPORATION JP 4,620