One-part, curable polyurethane

Details One-part, curable polyurethane One-part, curable polyurethane

C - Chemistry, Metallurgy

08

G

402/155

C08G 18/10 (2006.01) C08G 18/48 (2006.01) C08G 18/75 (2006.01) C08L 75/08 (2006.01) C09J 175/04 (2006.01)

Patent

CA 1186442

Abstract The disclosed one-part curable polyurethane prepolymer compositions comprise a continuouse phase and, distributed uniformly through this phase, a discontinuous phase containing A polyol curing agent of the pentaerythritol type. At moderately elevated temperatures, the polyol phase begins to enter into a curing reaction which has a single exotherm peak. The prepolymers are made from aliphatic or cycloaliphatic polyisocyanates and polymeric polyols. The one-part curable system is stable for long periods at room temperature. The curable polyurethane systems can be used in adhesives, coatings, sealants, and similar applications.

387060

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