Patent ID: 7947789
Filing Date: 2011-05-24
Classification: C08F,D06M

Abstract:
1. A method of producing a fluorine-containing copolymer composition, which comprises polymerizing a polymerization system comprising: a monomer mixture (A), the surfactant (B) and a polymerization initiator; (A) 1 to 99% by weight of a monomer mixture comprising a polymerizable monomer containing a fluoroalkyl group and a polymerizable monomer containing a hydrophilic group represented by general formula 2: wherein X is a hydrogen atom or a methyl group, R is an alkylene group having 2 to 6 carbon atoms, and n is an integer of 1 to 50, and (B) 1 to 99% by weight of a surfactant comprising a surfactant containing an oxyalkylene group, to produce a fluorine-containing copolymer, wherein % by weight is based on the total of the components (A) and (B); wherein the total amount of the monomer mixture (A) and the surfactant (B) is at least 80% by weight based on the polymerization system; wherein the polymerization system contains the polymerization initiator, an organic solvent, a chain transfer agent, water and a water-soluble polymer in a total amount of not more than 20% by weight based on the polymerization system; and wherein the surfactant containing an oxyalkylene group, constituting from 1 to 99% by weight of the surfactant (B), is a saturated compound.