University of California

Dow Global Technolgoies LLC

Rohm and Haas Company

Sang-Ho Lee

Craig Jon Hawker

Antony Keith Van Dyk

Paul G Clark

Alaina McGrath

David Lunn

Sungbaek Seo

A branched polycarboxylic acid or salt thereof, wherein the average number of branches is (2) to (100) and the average degree of polymerization of the branches is (2) to (50), is an effective polymeric dispersant. More specifically, the polymeric dispersant is a branched polycarboxylic acid or salt thereof, in which the branched polycarboxylic acid is derived from polymerization of (meth)acrylic acid; the average degree of polymerization is (10) to (150); the average number of branches is (2) to (20); and the average degree of polymerization of the branches is (2) to (30). The branched polycarboxylic acid or salt thereof can be combined with a pigment to form an aqueous dispersion. An aqueous coating composition includes the aqueous dispersion; a polymeric binder; and a rheology modifier.

Branched polymeric dispersants, aqueous pigment dispersions, and aqueous coating compositions thereof

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Ulsan, South Korea

Sang-Ho Lee