Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1993-05-21
1994-08-09
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
5253265, 525386, C08C 1900
Patent
active
053367316
ABSTRACT:
The present invention relates to fractional melt flow rate powders wherein the particles are substantially spherical in shape and range in size from about 10 up to about 200 microns. The invention also relates to a process whereby a dispersible olefin copolymer resin can be converted into a microfine powder with reduced melt index. The process entails dispersing a molten olefin copolymer resin containing silane functionality in a liquid medium in the presence of a nonionic surfactant and catalyst and, after the melt flow rate is reduced to the desired level, cooling the dispersion to below the melt point of the olefin polymer.
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Two abstracts of Japanese Publication 2185549 (Showa Elec. Wire KK.); publication date Jul. 19, 1990, Derwent Publications, Ltd., London, GB.
Heimberg Manfred
Ondrus Daniel J.
Baracka Gerald A.
Heidrich William A.
Quantum Chemical Corporation
Sarofim N.
Schofer Joseph L.
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