Patent ID: 9090723
Filing Date: 2015-07-28
Classification: C08F,C08J,H01M,Y02E

Abstract:
1. A perfluorinated resin, prepared by multivariate copolymerization of tetrafluoroethylene, two kinds of sulfonyl fluoride-containing vinyl ether monomers of different structures, and bromine pendant group-containing vinyl ether monomer; said resin comprises repeating units as shown in formula (I): wherein n is an integer between 0 to 3; m is an integer between 2 to 4; a, b and c are each independently an integer between 3 and 15, while a′, b′ and c′ are each independently an integer between 1 and 3; x/(x+y+z)=0.2-0.7, y/(x+y+z)=0.2-0.79, z/(x+y+z)=0.01-0.1.