Patent ID: 6716534
Filing Date: 2004-04-06
Classification: C08G,C09D,Y10S,Y10T

Abstract:
A composition comprising:(A) at least one fluorochemical polyether silane compound of the formula: Rf[Qâ€”CR2â€”Si(Y)3-x(R1)x]z â€ƒwherein Rf represents a multivalent polyfluoropolyether segment, Q represents an organic divalent linking group, R1 represents a C1-C8 alkyl group, Y represents a hydrolysable group selected from the group consisting of halide groups, alkoxy groups, acyloxy groups, polyoxyalkylene groups and aryloxy groups, R represents hydrogen or an alkyl group of 1 to 4 carbon atoms whereby the R groups may be the same or different, z is 2, 3 or 4 and x is 0 or 1; and (B) a substantial amount of one or more non-fluorinated compounds of an element M selected from the group consisting of Si, Ti, Zr, B, Al, Ge, V, Pb, Sn and Zn and having at least two hydrolysable groups per molecule; (C) a crosslinking agent of the formula: Lâ€”Qâ€”Si(Y)3-x(R1)x â€ƒwherein L represents a reactive functional group selected from the group consisting of an amino group, an epoxy group, a mercaptan group, an anhydride group, vinyl ether group, vinyl ester group, allyl ester group, vinyl ketone group, styrene group, vinyl amide group, acrylamide group, maleate group, fumarate group, acrylate group and methacrylate group.