Unsaturated polyester-epoxy resin network composition
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United States of America Patent
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Sep 28, 1993
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N/A
app pub date -
Apr 27, 1992
filing date -
Apr 27, 1992
priority date (Note) -
Expired
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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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