Processes of polymerisation

Introduced: July 1974

Last revised: January 2006

Classification Context

Section:: CHEMISTRY; METALLURGY
Class:: ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
Subclass:: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS

Related Keywords

processes or apparatus for preparing POLYADDITIONPOLYMERISATION initiationPOLYMERISATION processespolymerisation methods and catalysts for synthetic RUBBER

12 direct subcodes

Child Classifications

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C08F 2/01 characterised by special features of the polymerisation apparatus used
C08F 2/02 Polymerisation in bulk
C08F 2/04 Polymerisation in solution
C08F 2/12 Polymerisation in non-solvents
C08F 2/32 Polymerisation in water-in-oil emulsions
C08F 2/34 Polymerisation in gaseous state
C08F 2/36 Polymerisation in solid state
C08F 2/38 Polymerisation using regulators, e.g. chain terminating agents
C08F 2/44 Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
C08F 2/46 Polymerisation initiated by wave energy or particle radiation
C08F 2/58 Polymerisation initiated by direct application of electric current
C08F 2/6 Polymerisation by the diene synthesis

Top Applicants

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

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