C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
Description
C08G covers macromolecular compounds synthesized through mechanisms other than simple addition polymerization of carbon-carbon double or triple bonds. This includes polymers formed via condensation reactions (polyesters, polyamides, polyurethanes), step-growth polymerization, ring-opening reactions, and cross-linking processes. The subclass encompasses a broad range of industrial polymers such as phenolic resins, epoxy resins, polyimides, silicones, and various thermoset and thermoplastic materials. Excluded are vinyl polymers and elastomers derived purely from unsaturated hydrocarbon monomers, which fall under C08F (macromolecular compounds from unsaturated bonds).
Filing statistics
CPC subclass C08G recorded 314,683 patent applications worldwide between 2013 and 2023. Annual filings grew from 21,661 in 2013 to 26,211 in 2023 (+21%), peaking at 32,594 applications in 2020. The most active applicants in class C08 are LG CHEM (15,432 applications), DOW GLOBAL TECHNOLOGIES (14,214 applications) and BASF (BADISCHE ANILIN & SODA FABRIK) (11,155 applications).
Source: EPO PATSTAT, worldwide filings
50 direct subcodes
Child Classifications
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- C08G 10/00 Condensation polymers of aldehydes or ketones with aromatic hydrocarbons or halogenated aromatic hydrocarbons only
- C08G 12/00 Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen (aminophenols C08G8/16)
- C08G 14/00 Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00
- C08G 16/00 Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00 (with polynitriles C08G69/38)
- C08G 18/00 Polymeric products of isocyanates or isothiocyanates
- C08G 2/00 Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
- C08G 2101/00 Manufacture of cellular products
- C08G 2110/00 Foam properties
- C08G 2115/00 Oligomerisation
- C08G 2120/00 Compositions for reaction injection moulding processes
- C08G 2125/00 Compositions for processes using internal mould release agents
- C08G 2130/00 Compositions of compatibilising agents used in mixtures of high-molecular-weight compounds having active hydrogen with other compounds having active hydrogen
- C08G 2140/00 Compositions for moulding powders
- C08G 2150/00 Compositions for coatings
- C08G 2170/00 Compositions for adhesives
- C08G 2190/00 Compositions for sealing or packing joints
- C08G 2210/00 Compositions for preparing hydrogels
- C08G 2220/00 Compositions for preparing gels other than hydrogels, aerogels and xerogels
- C08G 2230/00 Compositions for preparing biodegradable polymers
- C08G 2250/00 Compositions for preparing crystalline polymers
Top Applicants
Top 10 applicants by patent filingsfor 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