Waterborne coating compositions for automotive applications

Details Waterborne coating compositions for automotive applications Waterborne coating compositions for automotive applications

1991-03-15

1991-12-10

Schofer, Joseph L.

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...

524460, 524813, C08F 216

Patent

active

050719041

ABSTRACT:
A waterborne coating composition having a total solids content at application of greater than 30 percent, contains pigment and a dispersion of polymeric microparticles in an aqueous medium. The microparticles contain greater than 30 percent by weight based on the microparticles of a substantially hydrophobic polymer which is essentially free of repeating acrylic or vinyl units in the backbone, has a molecular weight greater than 300 and is adapted to be chemically bound into the cured coating composition. The aqueous medium of the microparticle dispersion is substantially free of water soluble polymer.

REFERENCES:
patent: 3953643 (1976-04-01), Cheung et al.
patent: 3953644 (1976-04-01), Camelon et al.
patent: 4070323 (1978-01-01), Vanderhoff
patent: 4098745 (1978-04-01), Borman
patent: 4220675 (1980-09-01), Imazaki
patent: 4318833 (1982-03-01), Guagliardo
patent: 4403003 (1983-09-01), Backhouse
patent: 4489135 (1984-12-01), Drexler et al.
patent: 4539363 (1985-09-01), Backhouse
Backhouse, "Routes to Low Pollution Glamour Metallic Automotive Finishes", Journal of Coatings Technology, vol. 54, No. 693, Oct. 1982.
Pearson, "Water-Based Basecoat for Automotive Industry", Polymer Paint Colour Journal, vol. 177, No. 4195, Jul. 1987.
Oberflache+JOT, "Water-Based Enamel. Has the Breakthrough Succeeded?", Sep. 1985, pp. 48-49.

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