Inventors:
Shao-Hua Guo - West Goshen PA
Donald L. Lickei - Wayne PA
Michael J. Morgan - Spring City PA
James M. O'Connor - Cheshire CT
Assignee:
ARCO Chemical Technology, L.P. - Greenville DE
International Classification:
C08J 300, C08K 320, C08L 7500, C08F 830
Abstract:
Two-component polyurethane coating formulations comprising an aqueous dispersion of a polyisocyanate and a neutralized, water-dispersible resin are disclosed. The neutralized, water-dispersible resin incorporates recurring units of an allylic alcohol or an alkoxylated allylic alcohol. These low-VOC formulations use commercial polyisocyanates and ordinary mixing techniques. The uniquely uniform distribution of hydroxyl groups in the resin contributes to an excellent overall balance of coating properties from the 2K system, including high gloss, hardness, impact resistance, flexibility, weatherability, and chemical resistance.