Patent ID: 9434679
Filing Date: 2016-09-06
CPC Classification: C07C,C08F,C08G,C08J

Claim Text:
1. A fluorinated polymer (I) comprising recurring units derived from at least the following monomers: (i) 5 to 50% by weight of a fluorinated monomer (A) containing at least one —SO (ii) a non-functional fluorinated monomer (B), wherein monomer (B) comprises a fluorocarbon chain having a carbon skeleton, is free from functional groups that represent potential reaction sites in an organic compound and that may alter the properties of the carbon skeleton, and has at least one ethylene unsaturation; and (iii) a fluorinated polyfunctional compound of formula (II): wherein: a is 1, 2 or 3; b is 0 or 1 and the sum of a and b is an integer equal to or larger than 2; c is 0 or 1; R