C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 214/26 (2006.01) C08F 2/22 (2006.01) C08F 210/06 (2006.01) C08F 236/20 (2006.01) C08J 3/24 (2006.01)
Patent
CA 2573491
A process for producing an elastic fluorocopolymer, which comprises emulsion-polymerizing at least one fluoromonomer (a) selected from the group consisting of tetrafluoroethylene, hexafluoropropylene, vinylidene fluoride and a perfluorovinyl ether represented by CF2=CF-O-R f (wherein R f is a C1-8 perfluoroalkyl group or a perfluoro(alkoxyalkyl) group), a vinyl ester monomer (b) represented by the formula CR1R2=CR3COOCH=CH2 (wherein each of R1 and R2 which are independent of each other, is a hydrogen atom, a C1-10 alkyl group or a C1-10 alkoxyalkyl group containing an etheric oxygen atom, and R3 is a hydrogen atom, a fluorine atom or a methyl group), and as the case requires, at least one hydrocarbon monomer (c) selected from the group consisting of ethylene, propylene and a vinyl ether represented by CH2=CH-O-R4 (wherein R4 is a C1-8 alkyl group or an alkoxyalkyl group), in an aqueous medium to produce an elastic fluorocopolymer latex, adjusting the pH of the elastic fluorocopolymer latex to from 1 to 9, and coagulating the elastic fluorocopolymer latex to isolate an elastic fluorocopolymer.
Funaki Hiroshi
Kamiya Hiroki
Nomura Junpei
Asahi Glass Company Limited
Smart & Biggar
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