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DIFF 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)

Introduced: July 1974

Title

Titles differ between systems:

IPC: Chemical modification by after-treatment

CPC: 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)

Full Title

Full titles differ between systems:

IPC:

Chemical modification by after-treatment

CPC:

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)

IPC and CPC are identically structured here. All 18 subcodes exist in both systems.

IPC defines codes here since 1974.

Child Classifications

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  • C08F 8/02 Alkylation since 1974 IPC+CPC Available in IPC and CPC
  • C08F 8/04 Reduction, e.g. hydrogenation since 1974 IPC+CPC Available in IPC and CPC
  • C08F 8/06 Oxidation since 1974 IPC+CPC Available in IPC and CPC
  • C08F 8/08 Epoxidation since 1974 IPC+CPC Available in IPC and CPC
  • C08F 8/10 Acylation since 1974 IPC+CPC Available in IPC and CPC
  • C08F 8/12 Hydrolysis since 1974 IPC+CPC Available in IPC and CPC
  • C08F 8/26 Removing halogen atoms or halogen-containing groups from the molecule since 1974 IPC+CPC Available in IPC and CPC
  • C08F 8/28 Condensation with aldehydes or ketones since 1974 IPC+CPC Available in IPC and CPC
  • C08F 8/40 Introducing phosphorus atoms or phosphorus-containing groups since 1974 IPC+CPC Available in IPC and CPC
  • C08F 8/42 Introducing metal atoms or metal-containing groups since 1974 IPC+CPC Available in IPC and CPC
  • C08F 8/44 Preparation of metal salts or ammonium salts since 1974 IPC+CPC Available in IPC and CPC
  • C08F 8/46 Reaction with unsaturated dicarboxylic acids or anhydrides thereof, e.g. maleinisation since 1974 IPC+CPC Available in IPC and CPC
  • C08F 8/48 Isomerisation; Cyclisation since 1974 IPC+CPC Available in IPC and CPC
  • C08F 8/50 Partial depolymerisation since 1974 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

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