Polyisocyanate compositions

Details Polyisocyanate compositions Polyisocyanate compositions

1978-12-18

1980-07-08

Lusignan, Michael R.

Coating processes

With post-treatment of coating or coating material

Heating or drying

260453A, 260453AB, 260453AR, 260453AL, 252182, 4273855, 4273897, B05D 302

Patent

active

042118042

ABSTRACT:
Moisture-cure of a polyurethane prepolymer based on an aliphatic diisocyanate is readily accomplished when a prepolymer is first made from a polyhydroxy compound and an isocyanate group-terminated adduct of the aliphatic diisocyanate with a monosecondary or disecondary diamine obtained by reaction of an aliphatic diamine with an activated monoethylenic compound. Tetravalent organotin compounds are particularly good catalysts for the moisture cure. Moisture-curable polyurethane compositions of the present invention are useful in polyurethane coatings, especially for decorative surfaces, such as flooring.

REFERENCES:
patent: 3471450 (1969-10-01), Muller
patent: 3903126 (1975-09-01), Woerner et al.
patent: 3928271 (1975-12-01), Matsuda et al.
patent: 3943158 (1976-03-01), Dietrich et al.
patent: 3943159 (1976-03-01), Quiring et al.
patent: 4018745 (1977-04-01), Peterson
patent: 4038257 (1977-07-01), Suzuki et al.

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