Polyurethane composition

Details Polyurethane composition Polyurethane composition

C - Chemistry, Metallurgy

08

G

400/4304

C08G 18/04 (2006.01) C08F 283/00 (2006.01) C08G 18/63 (2006.01) C08G 18/65 (2006.01) C08G 18/67 (2006.01) C08G 18/86 (2006.01) C08L 75/04 (2006.01)

Patent

CA 1038541

ABSTRACT OF THE DISCLOSURE A polyurethane composition is produced by mixing (a) 100 parts by weight of prepolymer having terminal isocyanate groups and having a number average molecular weight in the range of from 800 to 20,000, (b) 5 - 30 parts by weight of a radical polymerizable vinyl compound, and (c) 0.05 - 1.0 part by weight of a radical initiator, adding (d) a curative selected from the group consisting of polyamine and polyol, and curing the re- sulting mixture by heating at 70 - 140°C, the equivalent ratio of the active hydrogen of (d) to the isocyanate groups of (a) being in the range of from 0.8 to 1.2.

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