Patent ID: 8049046
Filing Date: 2011-11-01
Classification: C09K,C10M,C10N,Y02P

Abstract:
1. A composition comprising: a. a refrigerant or heat transfer fluid comprising at least one unsaturated fluorocarbon selected from the group consisting of unsaturated fluorocarbons of the formula E- or Z—R b. at least one perfluoropolyether, wherein said perfluoropolyether has two end groups; wherein each of the two end groups of the perfluoropolyether, independently, is either an unfunctionalized, branched or straight chain pertluoroalkyl radical, or a functionalized group selected from the group consisting of esters, hydroxyls, amines, amides, cyanos, carboxylic acids and sulfonic acids; and wherein the amount of said perfluoropolyether is less than 1% by weight relative to said refrigerant or heat transfer fluid.