Polyurethane reaction mixtures and coating compositions

Details Polyurethane reaction mixtures and coating compositions Polyurethane reaction mixtures and coating compositions

C - Chemistry, Metallurgy

08

G

C08G 18/22 (2006.01) C08G 18/08 (2006.01) C08G 18/24 (2006.01) C08G 18/42 (2006.01) C08G 18/62 (2006.01) C09D 175/04 (2006.01)

Patent

CA 2041060

ACO 2227 ABSTRACT OF THE DISCLOSURE POLYURETHANE REACTION MIXTURES AND COATING COMPOSITIONS Polyurethanes are produced via the reaction between a polyol and polyisocyanate in the presence of a particular complexed polyisocyanate catalyst, wherein the polyol component has an acid number of about 5 or less. The polyurethane systems in accordance with the present invention have the advantage that they are readily curable at ambient temperatures and without vaporous amine activators and, under such curing conditions, display an excellent balance between potlife and cure speed.

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