High solids coating composition of an enamel containing a rheology control additive of silica and polyethylene glycol
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United States of America Patent
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Oct 25, 1983
Grant Date -
N/A
app pub date -
Jul 30, 1982
filing date -
Jul 30, 1982
priority date (Note) -
Expired
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Abstract
The coating composition useful as the exterior finish on automobiles and trucks contains about 40-60% by weight of a binder of film-forming constituents and 30-60% by weight of a non-aqueous carrier; the binder is an film-forming resin containing reactive hydroxyl, carboxyl, amide, glycidyl groups or any mixture of such groups and an alkylated melamine formaldehyde crosslinking resin, in addition the composition contains about 0.1-10% by weight, based on the weight of the binder, of a rheology control additive of (1) colloidal silica and (2) a polyethylene glycol having a weight average molecular weight of about 800-400,000.
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