Processes for the preparation of branched polymers

Details Processes for the preparation of branched polymers Processes for the preparation of branched polymers

1999-04-21

2000-09-05

Henderson, Christopher

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Treating polymer containing material or treating a solid...

430965, 525 26, 525259, C08J 320, C08F27900

Patent

active

061144991

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; adding to the heated mixture at least on polymerizable monomer; and cooling 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.

REFERENCES:
patent: 4581429 (1986-04-01), Solomon et al.
patent: 5017450 (1991-05-01), Iwanari et al.
patent: 5312871 (1994-05-01), Mardare et al.
patent: 5322912 (1994-06-01), Georges et al.
Database WPI, Section Ch, Week 9303, Derwent Publications Ltd., London, GB; Class A89, AN 93-022939, XP002007827 & JP-A-04 350 667 (Nippon Carbide Kogyo KK), Dec. 4, 1992, Abstract.

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