Patent ID: 6114499
Filing Date: 2000-09-05
Classification: C08F,C08G,C08L,G03G,Y10S

Abstract:
A process for the preparation of branched thermoplastic resins comprising:heating a mixture of an unsaturated resin, a free radical initiator, and a stable free radical agent, wherein a free radical initiator fragment and the stable free radical agent add to unsaturated bonds of the unsaturated resin;adding to the heated mixture at least one polymerizable monomer;adding a crosslinking agent to the polymerization after substantially all the monomer has been polymerized, wherein the crosslinking agent is a disubstituted olefin; andcooling the mixture, wherein the resulting product is a branched thermoplastic resin with arms or branches comprised of polymerized monomer with substantially uniform length and narrow polydispersity.