Patent ID: 6143829
Filing Date: 2000-11-07
Classification: C08G,C08K,C08L,Y10T

Abstract:
A process of reacting a coupling agent comprising a poly(sulfonyl azide) with a polymer to form a rheology modified polymer, the process comprising the steps:(a) forming a first admixture, hereinafter referred to as a concentrate, of a poly(sulfonyl azide) and a first amount of a first polymer or a liquid which does not require removal from the polymer, hereinafter diluent;(b) then forming a second admixture of the first admixture with a second amount of at least one second polymer, hereinafter second polymer composition; and(c) heating the second admixture at least to the decomposition temperature of the coupling agent for a time sufficient to result in coupling of polymer chainswherein the rheology modified polymer has less than about 10 percent gel as measured by ASTM 02765-procedure A.