Water-clear aliphatic polyurethane pultrusion formulations and processes

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United States of America Patent

PATENT NO 9896571
SERIAL NO

15245810

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Abstract

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Clear polyurethane fiber reinforced composites are produced by a pultrusion process with a polyurethane-forming system that includes: (a) a clear, aliphatic polyisocyanate having a viscosity at 25° C. of no more than 1000 centipoise, (b) a colorless polyol component comprising an amine-initiated polyol having a molecular weight of from about 150 to about 400 and an OH functionality greater than or equal to 3, and (c) a catalyst. These fiber-reinforced composites are characterized by both excellent weathering characteristics and excellent physical properties.

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Patent Owner(s)

Patent OwnerAddress
COVESTRO LLCPITTSBURGH PA 15205

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Harasin, Stephen J Morgan, US 22 253
Magnotta, Albert Monaca, US 12 97

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