| http://www.w3.org/ns/prov#value | - A transparent, high heat distortion temperature polyurethane according to claim 1, wherein said polyisocyanate has the formula R(NCO)n wherein R is an aliphatic or a cycloaliphatic having from 4 to 18 carbon atoms or an aromatic or an alkyl substituted aromatic having from 6 to 15 carbon atoms, or combinations thereof, and where n is from 2 to 4, and wherein the equivalent ratio of said polyisocya
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