Aqueous chip resistant coating composition

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...

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524517, 524522, 524523, 524526, 524548, 524558, 524559, 524560, 524563, 524564, C08K 505, C08L 3700

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active

045379262

ABSTRACT:
Described is an aqueous chip resistant coating composition exhibiting a viscosity of at least 5,000 centipoise, preferably containing binders with a high molecular weight, preferably at least 20,000. Although these coatings may be applied to a variety of substrates, for coating electrocoated substrates the following eight binders are particularly preferred: ethylene vinyl acetate copolymer, carboxylated ethylene vinyl acetate, epoxy functional acrylic resin, carboxylated styrene-butadiene resin, carboxylated acrylic, hydroxy functional acrylic, self-crosslinking acrylic; and carboxylated PVC acrylic. Generally, it is preferred to apply the chip resistant coating via an airless spray and the heat curing the coating.

REFERENCES:
patent: 3879326 (1975-04-01), Burke, Jr.
patent: 4172066 (1979-10-01), Zweigle et al.

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