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CPC Subclass Not Allocatable
C08F

MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS

Description

C08F covers macromolecular compounds (polymers) synthesized exclusively through reactions of carbon-to-carbon unsaturated bonds, including addition polymerization, ring-opening polymerization of unsaturated monomers, and related transformations. This encompasses synthetic polymers derived from alkenes, alkynes, dienes, and cyclic unsaturated compounds, as well as modifications of such polymers. The subclass excludes polycondensation and polyaddition reactions involving functional groups other than C=C or C≡C unsaturation, which are classified elsewhere in C08.

88 direct subcodes

Child Classifications

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  • C08F 124/00 Homopolymers 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 heterocyclic ring containing oxygen (cyclic esters of polyfunctional acids C08F118/00; cyclic anhydrides of unsaturated acids C08F120/00, C08F122/00)

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