Patent ID: 7645516

Claim:
Copolymers of the formula: R′-[(A) a (B) b (C) c ]-R″ (I), in which (A) each independently is a unit of the formula —[CO—NH-Z-NH—CO—ND-Y—Si(OR 1 ) o R 2-o —(O—SiR 2 ) n —O—Si(OR 1 ) o R 2-o —Y—ND]- (II), (B) each independently is a unit of the formula —[CO—NH-Z-NH—CO—NR 4 -G-NR 4 ]— (III) and (C) each independently is a unit of the formula —[CO—NH-Z-NH—CO-E-X-E]- (IV) where X each independently is an alkylene radical having 1 to 700 carbon atoms, which is unsubstituted or substituted by fluorine, chlorine, C 1 -C 6 alkyl or C 1 -C 6 alkyl ester and in which non-adjacent methylene units are optionally replaced by groups O, COO, OCO or OCOO, or is an unsubstituted or substituted arylene radical having 6 to 22 carbon atoms, Y each independently is a divalent hydrocarbon radical having 1 to 30 carbon atoms in which non-adjacent methylene units are optionally replaced by O, or is the radical (CH 2 ) 3 NHSiR 2 (CH 2 ) 3 NH, Z each independently is a divalent hydrocarbon radical which has 1 to 30 carbon atoms and is unsubstituted or substituted by fluorine or chlorine, D each independently is hydrogen or a monovalent, unsubstituted or substituted hydrocarbon radical, E each independently is an oxygen atom or an amino group —ND-, R each independently is a monovalent hydrocarbon radical which has 1 to 20 carbon atoms and is unsubstituted or is substituted by fluorine or chlorine, R 1 each independently is hydrogen or a monovalent hydrocarbon radical which has 1 to 20 carbon atoms and is unsubstituted or is substituted by fluorine, chlorine or organyloxy groups, or is —(C═O)—R or —N═CR 2 , R 4 each independently is a radical of the formula -Z′-SiR p (OR 1 ) 3-p where Z′ is defined as for Z, and p is 0, 1 or 2, or is hydrogen or a monovalent, unsubstituted or substituted hydrocarbon radical, G each independently is defined as for Z, R″ is a hydrogen atom or a radical —CO—NH-Z-NCO, R′ if R″ is hydrogen atom, is a radical HND-Y—Si(OR 1 ) o R 2-o —(O—SiR 2 ) n —O—Si(OR 1 ) o R 2-o —Y—ND-, HNR 4 -G-NR 4 — or HE-X-E-, and if R″ is a radical —CO—NH-Z-NCO, is a radical OCN-Z-NH—CO—ND-Y—Si(OR 1 ) o R 2-o —(O—SiR 2 ) n —O—Si(OR 1 ) o R 2-o —Y—ND-, OCN-Z-NH—CO—NR 4 -G-NR 4 — or OCN-Z-NH—CO-E-X-E-, n each independently is an integer from 1 to 4000, o each independently is 0, 1 or 2, a is an integer of at least 1, b is an integer of at least 1, c is 0 or an integer of at least 1, with the proviso that per molecule at least one radical R 4 which is -Z′-SiR p (OR 1 ) 3-p is present, and wherein the individual blocks (A), (B) and (C) are distributed in any manner in the polymer.