Aromatic polyol end-capped unsaturated polyetherester resins and resin compositions containing the same having improved chemical and/or water resistance
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United States of America Patent
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Dec 14, 2004
Grant Date -
May 9, 2002
app pub date -
Mar 28, 2001
filing date -
Jan 20, 1998
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Expired
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Abstract
Unsaturated polyetherester resins, and processes for making them, are described which are useful for making curable thermoset resin compositions, intermediates for curable thermoset resin compositions, fiber-reinforced polymer composites, intermediates for making skin laminates for gel coated fiber-reinforced composites and gel coated polymer laminates. The unsaturated polyetherester resins are obtainable by reacting at least one acid-terminated unsaturated polyetherester resin with at least one aromatic polyol having at least one non-primary hydroxy group to produce an unsaturated polyetherester resin at least partially end-capped with an aromatic polyol. The described processes, compositions, methods and uses improve the chemical and/or water resistance of resin compositions, particularly composite materials having a gel coat. That improvement has special significance in outdoor and marine applications, bathtubs and shower stalls, and environments exposed to chemicals such as industrial and commercial applications.
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