Impact resistant polyurethane and method of manufacture thereof
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United States of America Patent
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Oct 3, 2000
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N/A
app pub date -
Sep 2, 1998
filing date -
Feb 2, 1995
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Abstract
The present invention is an optically clear, high hardness, impact resistant polyurethane which provides exceptionally high heat distortion temperatures and excellent chemical resistance. The invention is particularly useful for transparency applications that require excellent impact resistance coupled with high heat distortion temperatures, such as architectural glazings vehicles, glazings, riot shields, aircraft canopies, face masks, visors, opthalmic and sun lenses, protective eyewear, and transparent armor.
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