ФТОРЭЛАСТОМЕРЫ, ИМЕЮЩИЕ НИЗКОТЕМПЕРАТУРНЫЕ ХАРАКТЕРИСТИКИ И УСТОЙЧИВОСТЬ К РАСТВОРИТЕЛЯМ

摘要

The present invention is based on quad-fluoropolymer suitable for the preparation of a fluoroelastomer. The fluoropolymer comprises repeating units derived from 10 to 40 mol % of tetrafluoroethylene, 40 to 65 mol % of vinylidene fluoride, 1 to 30 mol % of a perfluorinated vinyl ether of the formula CF2=CFOCF2CF2CF2OCF3, 1 to 20 mol % of perfluoromethyl vinylether.