Patent ID: 6174983
Filing Date: 2001-01-16
Classification: A61K,A61Q,C08G

Abstract:
Polysiloxanes of the general formula (I)[SiO.sub.4/2 ].sub.d [MeSiO.sub.3/2 ].sub.e [O.sub.1/2 MeSi(Q)O.sub.1/2 ].sub.f [O.sub.1/2 Me.sub.2 SiQ].sub.g (I)wherein:Q is R, R.sup.1 or R.sup.2 ; but at least one Q is R.sup.1 and at least one Q is R.sup.2 ;R is a monovalent saturated straight, branched, or cyclic alkyl group having 1 to 10 carbon atoms, wherein each of the R groups present may be the same or different from one another;R.sup.1 is --R.sup.3 --C.sub.6 H.sub.3 R.sup.4 R.sup.5 whereR.sup.3 is a divalent hydrocarbon group of 2-5 carbons,R.sup.4 and R.sup.5 are the same or different and selected from the group consisting of hydrogen; a C.sub.1 -C.sub.6 alkyl; a C.sub.1 -C.sub.6 alkoxy group; a tri-(C.sub.1 -C.sub.6 -alkyl)siloxy group; an acyloxy group R.sup.A C(O)O--, wherein R.sup.A is C.sub.1 -C.sub.10 alkyl, aryl, or an aryl-C.sub.1 -C.sub.10 -alkyl; an amide; and --(OC.sub.v H2.sub.v).sub.l OR.sup.7, wherein v is 2 to 4, l is 1 to 10 and R.sup.7 is hydrogen or a group as defined for R, andat least one of R.sup.4 and R.sup.5 is not hydrogen;R.sup.2 is represented by formula --(C.sub.m H.sub.2m)(OC.sub.n H.sub.2n).sub.p OR.sup.6, where R.sup.6 is hydrogen, R or acetyl; m is an integer greater than zero; each n is 2 to 4; p is from 0 to 100;d is 0 to 4, e is 0 to 4, g is 0 to (2d+e+2) and f is 1 to 500.