Patent ID: 6291618
Filing Date: 2001-09-18
Classification: C08F,C08G

Abstract:
A process for preparing a rheology modified polymer comprising contacting a polymer with a cyclic phosphazene azide compound of the formula:P.sub.3 N.sub.3 (R).sub.n (N.sub.3).sub.6-n,wherein n is an integer from 2 to 4, and R is a C.sub.1 to C.sub.20 alkoxy, a C.sub.6 to C.sub.20 phenoxy, a C.sub.2 to C.sub.20 dialkylamine, or a C.sub.12 to C.sub.20 diarylamine group at a temperature which is at least the decomposition temperature of the cyclic phosphazene azide.