Patent ID: 6414175
Filing Date: 2002-07-02
Classification: C08G

Abstract:
A block copolymer of the following general average formula: in which the groups and indices have the following meaning:A=an R1 group, a group E, or a group of one of the following formulas: â€ƒgroup B=radical of the formula IIa or IIb D=radical of formula R1=an alkyl group having 1 to 30 carbon atoms, a substituted alkyl group, an optionally substituted aryl group or an optionally substituted alkaryl group, with at least 80% of the R1 groups being methyl groups, a is from 3 to 200, b is from 0 to 50, c is from 0 to 10 and d is from 0 to 5, it being possible for the values of a, b, c and d in the individual segments Z of the radicals A, B and D to be different, E=radical which is a) a group of the general formula â€”R2fâ€”Oâ€”(CmH2mOâ€”)nR3 â€ƒwhere R2 is a divalent alkyl group, which can also be branched, and f is 0 or 1, m is on average 2 to 4, n is from 0 to 100 and R3 is a hydrogen group, an optionally substituted alkyl group having 1 to 6 carbon atoms, an acyl group or the group â€”Oâ€”COâ€”NHâ€”R4 in which R4 is an optionally substituted alkyl or aryl group, and/or b) is an epoxy-functionalized alkyl substituent which optionally contains heteroatoms, and/or c) is a mono-, di- and trihydroxyalkyl substituent which can also be aromatic or branched and partially or completely etherified or esterified, and/or d) is a halo- or pseudohalo-substituted alkyl, aryl or aralkyl group which optionally can also be branched, with the proviso that at least one radical of the formula IIa or IIb is present in the molecule.