Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1993-08-06
1994-09-27
Marquis, Melvyn I.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525 31, 525119, 525122, 525533, 525942, 528297, C08F28301, C08F28310
Patent
active
053508149
ABSTRACT:
A unsaturated polyester resin composition is described that contains an epoxy resin reacted with an amine-terminated flexible polymer while dissolved in the unsaturated polyester resin and its ethylenically unsaturated crosslinking monomer. A compatible system results from the reaction which has a controllable modulus based on the amount of flexible polymer included in the resin. The resin is generally transparent if unfilled and has a higher calculated fracture energy than similar unsaturated polyester resin without modification. The unsaturated polyester resin can be filled with particulate filler or reinforced with fibrous fillers.
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European Search Report EP 93 302987 completed Jul. 27, 1993.
McGarry Frederick J.
Subramaniam Ramnath
GenCorp Inc.
Gulakowski Randy
Laferty Samuel B.
Marquis Melvyn I.
Rote, Jr. Frank C.
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