Ambient temperature, moisture-curable acrylic-silane coating compositions having improved potlife
AssigneePPG Industries, Inc.
InventorsWen-Hsuan Chang, Marvis E. Hartman, Roger L. Scriven
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Abstract
The potlife of an ambient temperature, moisture-curable coating composition comprising an acrylic-silane interpolymer and a cure-accelerating catalyst is increased by the addition to the composition of from about 0.5 percent to about 15 percent by weight of interpolymer solids of a monomeric hydrolytically reactive organo-silicon compound represented by the structural formula: X.sub.n Si(OR).sub.4-n wherein X is an organic radical having from 1 to 12 carbon atoms, R is methyl, ethyl, 2-methoxyethyl, 2-ethoxyethyl, or an acyl group containing 5 or less carbon atoms and n is 0, 1 or 2.
Claims24
In an ambient temperature, moisture-curable coating composition which includes:
- A. an acrylic-silane interpolymer of:
- 1. at least one ethylenically unsaturated monomer which contains ##STR13## group and is devoid of active hydrogen atoms;
- and
Dependencies are inferred from the claim text.