Patent ID: 8084405
Filing Date: 2011-12-27
Classification: C08G,C10M,C10N

Abstract:
1. A composition comprising an aryl perfluoropolyether which is a difunctional aryl perfluoropolyether having the formula of R f 1 —[(Y) a —(C t R (u+v) )—(O—C t R 1 (u+v) ) b —R] 2 wherein R R where the units with formulae CF X is —F, —CF e and f are numbers such that the e/f ratio ranges from about 0.3 to about 5; each Q is independently —F, —Cl, or —H; p, q and r are numbers such that (p+q) ranges from 1 to 50 and r/(p+q) ranges from 0.1 to 0.05; each w is independently 2 to 45; R s is an average number such that the formula weight of R each R is independently —H, —OH, —SO each R each R R M is a hydrogen or metal ion wherein the metal ion is selected from the group consisting of alkali metal, alkaline earth metal, transition metal, or combinations of two or more thereof; a is 0 or 1; b is 0-5; Y is a divalent radical —CH n is about 1 to about 5; o is about 2 to about 5; t is equal to 6+u; u is any combination of 0, 2, 4, 6, 8, 10, 12, 14, 16; and v is independently either 2 or 4.