Patent ID: 6020456
Filing Date: 2000-02-01
Classification: C08G

Abstract:
A copolyetherimide comprising structural units of the formulas ##STR7## wherein: Q is a divalent aliphatic or aromatic radical and A.sup.1 is a divalent radical of the formula ##STR8## A.sup.2 is m- or p-phenylene or a bis(alkylene)polydiorganosiloxane radical or has the formula ##STR9## X is O, S or NR.sup.4 ; R.sup.1 is an alkyl radical having from 2 to about 10 carbon atoms;each R.sup.2 is independently C.sub.1-6 alkyl or halo;R.sup.3 is C.sub.1-3 gem-alkylene;R.sup.4 is hydrogen or C.sub.1-6 alkyl;each of m, n and p is independently 0 or 1; andz is 0 or 1.