Patent ID: 7648811
Filing Date: 2010-01-19
Classification: C08G,G03G

Abstract:
1. A branched polyarylene ether copolymer which comprises a plurality of branch points, each branch point being of the formula wherein each Ar, independently of the others, is an aryl moiety, which may be substituted or unsubstituted, and which may or may not have one or more heteroatoms therein, or an alkylaryl moiety, which may be substituted or unsubstituted, and which may or may not have one or more heteroatoms therein, provided that when Ar is an alkylaryl moiety at least three repeating groups are bonded to an aryl portion thereof through the oxygen atoms in the repeating groups, each x, independently of the others, is an integer of 3 or greater, each m, independently of the others, is an integer of 0 or 1, each D, independently of the others, is either (a) another branch point, (b) a terminal group, or (c) of the formula wherein each n, independently of the others, is an integer representing the number of repeat monomer units, each A, independently of the others, is wherein R is a hydrogen atom, an alkyl group, an aryl group, an arylalkyl group, an alkylaryl group, or mixtures thereof, wherein R or mixtures thereof, each B, independently of the others, is wherein z is an integer of from 2 to about 20, wherein u is an integer of from 1 to about 20, wherein w is an integer of from 1 to about 20, wherein each o, independently of the other, is an integer of 1, 2, 3, or 4, wherein R wherein b is an integer of 0 or 1, wherein (1) Z is wherein c is 0 or 1; (2) Ar′ is (3) G is an alkyl group selected from alkyl groups containing from about 2 to about 10 carbon atoms; (4) Ar″ is (5) X is wherein s is 0, 1, or 2, and (6) q is 0 or 1; or mixtures thereof, and wherein