Fluoroolefin copolymer, process for production thereof and composition containing said copolymer

摘要

A fluoroolefin copolymer having an inherent viscosity of from 0.05 to 2.0 dl/g and composed of (I) 10 to 70 mole % of monomeric units derived from a fluoroolefin represented by the general formula <IMAGE> wherein X is H, Cl, F, CF3, OCF3 or OC3F7, (II) 5 to 60 mole % of monomeric units derived from a vinyl carboxylate represented by the general formula <IMAGE> wherein R1 represents an aliphatic, aromatic or alicyclic hydrocarbon group having 1 to 17 carbon atoms, (III) 5 to 70 mole % of monomeric units derived from a vinyl ether having an alkyl group with 1 to 8 carbon atoms, and (IV) 0 to 30 mole % of monomeric units derived from a hydroxyl-containing vinyl ether represented by the general formula <IMAGE> wherein R2 represents an alkylene group having 1 to 6 carbon atoms.