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IPC Subgroup
C08L 35/06

Copolymers with vinyl aromatic monomers

Introduced: July 1974

Last revised: January 2006

Full Title

Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical, and containing at least one other carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers > Copolymers with vinyl aromatic monomers

Classification Context

Section:
CHEMISTRY; METALLURGY
Class:
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
Subclass:
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS

Top Applicants

Top 10 applicants by patent filingsfor class C08, 2013–2023, worldwide · Source: EPO PATSTAT

  1. LG CHEM KR 14,262
  2. DOW GLOBAL TECHNOLOGIES US 12,486
  3. BASF (BADISCHE ANILIN & SODA FABRIK) DE 9,858
  4. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 7,877
  5. CHINESE ACADEMY OF SCIENCES 6,993
  6. FUJIFILM JP 5,049
  7. 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 4,923
  8. SHIN-ETSU CHEMICAL COMPANY JP 4,517
  9. BOREALIS AT 4,213
  10. ARKEMA FR 4,098