Oil- and water-repellent copolymers

Details Oil- and water-repellent copolymers Oil- and water-repellent copolymers

C - Chemistry, Metallurgy

08

F

402/403

C08F 220/22 (2006.01) D06M 15/263 (2006.01) D06M 15/277 (2006.01)

Patent

CA 1271892

TITLE Oil- and Water-Repellent Copolymers ABSTRACT Oil- and water- repellent solid fluoropolymers are disclosed, comprising by weight: (a) 40-75% polymer chain units derived from a mixture of perfluoroalkylethylacrylate monomers of formula CF3CF2(CF2)kC2H4OC(O)CH=CH2, the monomer mixture consisting essentially of: (1) 0-10% monomer wherein k is 4 or less; (2) 45-75% monomer wherein k is 6; (3) 20-40% monomer wherein k is 8; (4) 1-20% monomer wherein k is 10; and (5) 0-5% monomer wherein k is 12; (b) 10-35% polymer chain units derived from vinylidene chloride; and (c) 10-25% polymer chain units derived from an alkyl acrylate or alkyl methacrylate having an alkyl chain length of 2-18 carbons.

527745

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