High-build low-sag aqueous coating composition

Details High-build low-sag aqueous coating composition High-build low-sag aqueous coating composition

1998-09-25

2000-01-04

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...

4273722, 4273855, 524591, 524839, 524840, C08J 300, C08K 320, C08L 7500, B05D 302

Patent

active

060111062

ABSTRACT:
A method for providing a high-build, low-sag coating by applying an aqueous coating composition including a waterborne polymer, preferably an emulsion polymer, having a glass transition temperature from 0 C. to 70 C., a hydrophobically modified polyurethane thickener, and a coalescent having solubility in water of less than 3 weight % and evaporation rate of at least 0.01(butyl acetate evaporation rate=1.0) to a substrate in a single coat having a thickness of at least 0.05 mm. when dried, and drying, or allowing to dry, the applied coating is provided. The aqueous composition and a curable composition are also provided.

REFERENCES:
patent: 5262464 (1993-11-01), Koevenig et al.
T.C. Thibeault, P.R. Sperry, and E.J. Schaller, Chapter 20, "Effect of Surfactants and CoSolvents on the Behavior of Associative Thickeners in Latex Systems" in "Water-Soluble Polymers", No. 213, Advances in Chemistry Series, ed. J.E. Glass, American Chemical Soc., Wash, D.C. (1986).
"Exxate Solvents" brochure, Exxon Chemical Co., (undated).
W. Gunter, "Proceedings of the Water-Borne and Higher-Solids Coatings Symposium", 1988, 265-296 1988.

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