Patent ID: 8399713

Claim:
A composition comprising at least one unsaturated fluoroether having a formula selected from the group consisting of CF 3 (CF 2 ) x CF═CFCF(OR)(CF 2 ) y CF 3 , CF 3 (CF 2 ) x C(OR)═CFCF 2 (CF 2 ) y CF 3 , CF 3 CF═CFCF(OR)(CF 2 ) x (CF 2 ) y CF 3 , and mixtures thereof, wherein R can be either CH 3 , C 2 H 5 or mixtures thereof, and wherein x and y are independently 0, 1, 2 or 3, and wherein x+y=1, 2 or 3, except that said unsaturated fluoroether is not CF 3 CF 2 CF═C(OCH 3 )(CF 2 ) 2 CF 3 .