Rapid drying, isocyanate cured coating composition with improved

Details Rapid drying, isocyanate cured coating composition with improved Rapid drying, isocyanate cured coating composition with improved

1997-09-24

1999-02-09

Niland, Patrick D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524589, 528 44, C08J 300, C08K 320, C08L 7500, C08G 1800

Patent

active

058695664

ABSTRACT:
A coating composition contains an active hydrogen group-containing polymer (e.g., polyol and/or polyester) and a polyisocyanate curing agent. The polyisocyanate curing agent contains (i) at least 5 weight percent triaminononane triisocyanate, and (ii) at least 5 weight percent of a polyisocyanate different from (i) wherein the percentages are based on the total resin solids content of the coating composition. The composition exhibits a combination of good adhesion and rapid dry time that makes the composition particularly useful as an automotive refinish coating.

REFERENCES:
patent: 4650718 (1987-03-01), Simpson et al.
patent: 5196485 (1993-03-01), McMonigal et al.
patent: 5468802 (1995-11-01), Wilt et al.
patent: 5714564 (1998-02-01), Schaffer
High Solids Coatings Based on a Novel Triisocyanate, M. Ojunga-Andrew, et al Monsanto Company, Feb. 22-24, 1995, pp. 200-210.
Kinetics of Reaction of n-Butanol and Triaminononane Trisisocyanate Measured via .sup.13 C Solution NMR, M. R. Krejsa, et al., Monsanto Company, pp. 2141-2154.

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