Polyurethane resin coating composition

Details Polyurethane resin coating composition Polyurethane resin coating composition

1980-01-29

1981-11-17

Pertilla, Theodore E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 296NR, 428412, 4284231, 4284237, 4284244, 4284258, 525 6, C08L 7504

Patent

active

043010539

ABSTRACT:
Two-package waterborne polyurethane resin coating compositions which, when applied to a solid substrate produce an adherent, abrasion resistant coating thereon, are disclosed herein. The coating compositions essentially include a small amount of N-methylpyrrolidone to improve adhesion to non-polar thermoplastic substances and are prepared by providing a carboxyl group-containing polyurethane in aqueous dispersion and, optionally, a water dispersible acrylic, as a first part; and using a trifunctional aziridine compound to make the second part of the two package system.

REFERENCES:
patent: 3632556 (1972-01-01), Pittman et al.
patent: 4183836 (1980-01-01), Wolfe, Jr.

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