Patent ID: 6653511
Filing Date: 2003-11-25
Classification: C07C

Abstract:
A composition comprising a perfluoropolyether, which has the formula selected from the group consisting of F(C3F6O)zCF(CF3)CF2X, XCF2CF(CF3)O(C3F6O)pRf2O(C3F6O)nCF(CF3)CF2X, XCF2CF2O(C3F6O)xCF(CF3)CF2X, (Rf1)(Rf1)CFO(C3F6O)xCF(CF3)CF2X, and combinations of two or more thereof wherein X is I or Br, x is a number from 2 to about 100, z is a number from 5 to about 100, p is a number from 2 to about 50, n is a number from 2 to about 50, each Rf1 is independently a monovalent C1 to C20 branched or linear fluoroalkane, and Rf2 is a divalent C1 to C20 branched or linear fluoroalkane.