Castable polyurethane systems
AssigneeCiba-Geigy Corporation
InventorsNancy M. Ham, Teruko Miyazaki
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Abstract
A castable polyurethane system comprising the reaction product of (1) a polyisocyanate prepolymer prepared by reacting an excess of a polyisocyanate compound with an amine-based polyol and (2) a polyol, said polyurethane systems being clear, hard, easily cast, impact resistant, heat resistant and appropriate for a number of applicable uses.
Claims14
A substantially clear, castable polyurethane system comprising the reaction product of (a) a polyisocyanate prepolymer comprising the reaction product of an excess of an aliphatic or cycloaliphatic polyisocyanate compound and an amine-based polyol, and (b) an amine-based polyol, a polyether polyol or mixtures thereof.
Dependencies are inferred from the claim text.