Patent ID: 7838614
Filing Date: 2010-11-23
Classification: C08G,C10M,C10N

Abstract:
1. Linear polyester-polysiloxane block copolymers of the general formula (I) in which the (—S—P—), (—S-Q-) and (—S-T-) units are bonded to one another in any sequence and in which p=1 to 10, q=1 to 10, t=0 to 10, r=1 to 100, and r*p≧3 and r*q≧3, characterized in that S is a divalent siloxane unit of the general formula (II) where N=a+b+c+2=3 to 850, a=1 to 800, b=0 to 10, c=0 to 10, R R where a, b, c and R R P is a divalent polyester unit of the general formula (III) where R m is 0 to 21, R where n=1 to 100, o=1 to 100, p=0 to 17, R R R Q is a divalent straight-chain or cyclic, uncharged or positively charged alkyl radical which is optionally interrupted by oxygen atoms and is interrupted at least by one optionally alkyl-substituted nitrogen atom or bears at least one amino group, T is a divalent polyether unit of the general formula (IV) where R R d is in each case independently 0 to 2, e is 0 to 50, f is 2 to 4, g is 0 to 50, with the proviso that e+g>0, M is the same or different and is a divalent saturated or unsaturated, linear, branched or cyclic hydrocarbon radical which is optionally interrupted by oxygen or nitrogen atoms or carboxyl groups and is optionally substituted, at any position within T, h is 0, 1 or 2 and i is 0 or 1.