Waterborne coating compositions having improved smoothness
AssigneePPG Industries, Inc.
InventorsJames E. Poole, Roxalana L. Martin
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Abstract
Waterborne coating compositions comprising polymeric film-forming resins and about 0.1 to 5 percent by weight based on weight of resin solids of an oligomer containing from about two to four urethane, urea, or amide moieties per molecule and two or more moieties selected from the group consisting of hydroxyl and tertiary amine. The oligomer improves the smoothness of the resulting coating.
Claims11
A waterborne coating composition comprising a polymeric film-forming resin in aqueous medium and from about 0.1 percent to about 5 percent of an oligomeric material containing from about two to about four urethane, urea or amide moieties per molecule, and two or more moieties selected from the group consisting of hydroxyl and tertiary amine.
Dependencies are inferred from the claim text.