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CPC Main Group
C08F 8/00

Chemical modification by after-treatment (graft polymers, block polymers, crosslinking with unsaturated monomers or with polymers C08F251/00 - C08F299/00; of conjugated diene rubbers C08C)

18 direct subcodes

Child Classifications

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  • C08F 8/02 Alkylation
  • C08F 8/04 Reduction, e.g. hydrogenation
  • C08F 8/06 Oxidation
  • C08F 8/08 Epoxidation
  • C08F 8/10 Acylation
  • C08F 8/12 Hydrolysis
  • C08F 8/26 Removing halogen atoms or halogen-containing groups from the molecule
  • C08F 8/28 Condensation with aldehydes or ketones
  • C08F 8/40 Introducing phosphorus atoms or phosphorus-containing groups
  • C08F 8/42 Introducing metal atoms or metal-containing groups
  • C08F 8/44 Preparation of metal salts or ammonium salts
  • C08F 8/46 Reaction with unsaturated dicarboxylic acids or anhydrides thereof, e.g. maleinisation
  • C08F 8/48 Isomerisation; Cyclisation
  • C08F 8/50 Partial depolymerisation

Top Applicants

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

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