Method for preparing a color pigmented moisture curing polyureth

Details Method for preparing a color pigmented moisture curing polyureth Method for preparing a color pigmented moisture curing polyureth

1979-10-24

1981-12-08

Lusignan, Michael R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 291R, 260 328N, 260 37N, 260 40TN, C08K 510

Patent

active

043047068

ABSTRACT:
This invention relates to a new and useful process for color pigmented moisture curing polyurethanes. The process is comprised of preparing a slurry of specified color pigments, solvents, and additives to which is added a specified quantity of a chosen monomeric diisocyanate. A polyol (or other suitable hydrogen donor) is added to the slurry and the monomeric diisocyanate. Pigments are then dispersed in the aforesaid admixture. To the aforesaid admixture, called a color pigment dispersion, isocyanate prepolymers are added. The completed admixture results in a stable colored moisture curing (air drying) polyurethane for use as a protective and decorative coating.

REFERENCES:
patent: 3917556 (1975-11-01), Baurecht et al.
patent: 4049610 (1977-09-01), Bunge et al.
patent: 4075152 (1978-02-01), Taller
patent: 4129455 (1978-12-01), Thompson et al.
patent: 4143181 (1979-03-01), Cahn et al.
patent: 4180491 (1979-12-01), Kim et al.

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