US Patent:
20070010612, Jan 11, 2007
Inventors:
John Rouge - North Royalton OH, US
Joseph Grill - North Olmsted OH, US
Sean Huang - Hudson OH, US
Wayde Jenkins - Perry OH, US
Kristopher Modrzynski - Reminderville OH, US
Gerald Moore - Newbury OH, US
William Papczun - Hudson OH, US
Brian Pavia - Aurora OH, US
Joseph Vendel - Ashtabula OH, US
Assignee:
THE SHERWIN-WILLIAMS COMPANY - Cleveland OH
International Classification:
C09D 5/02
Abstract:
A multi-layer coating system comprising a hydroxyl-functional polyurethane dispersion is provided. The hydroxyl-functional polyurethane comprises the reaction product of a pre-polymer intermediate formed from the reaction of an isocyanate with an active hydrogen containing compound, such as a polyester polyol, with a compound having at least two amine groups and one hydroxyl group, such as a diamino alcohol. In addition, a waterborne basecoat composition is provided having improved rheology and pattern control. Such a waterborne basecoat composition comprises a hydroxyl-functional polyurethane dispersion an acrylic emulsion resin, a water-reducible polyester resin, and a cellulose ester.