Polyurethane resin coating composition
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United States of America Patent
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-
Nov 17, 1981
Grant Date -
N/A
app pub date -
Jan 29, 1980
filing date -
Jan 29, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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Cited Art Landscape
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