| abstract |
Polyether modified fluoroalkylsiloxanes having the general structure of Formula (I), Formula (II) or Formula (III): wherein x is about 0 to 500, y is about 1 to 50, z is about 1 to 50, R=CpH2p-(OC2H4)n-(OC3H6)n)m-OR' in which p is about 2 to 5, n is about 0 to 50, N is about 0 to 50, and one of n or m must be >0, and R'=H, an alkyl group with 1-4 carbons, or an acetyl group and Rf=CaH2a-Ob-CcH2c-CdF2d+1 in which a is 3 or 4, b is 0 or 1, c is 0 or 2-4 and d is 4-12 with the provisos that if b=0, then c=0, and that if b=1, then c=2-4; z1 is about 0 to 50 and y1 is about 0 to 50, are useful to reduce the coefficient of friction and to increase mar resistance of coatings, to increase spreadability and wettability of coating formulations, and as foam control agents. |