Patent ID: 6750276
Filing Date: 2004-06-15
Classification: C08G,C08K,C08L,C09D

Abstract:
A process of making a waterborne coating composition, comprising the step of:combining an aqueous solvent, a resin selected from the group consisting of polyurethane resin, acrylic resin, epoxy resin, polyester resin, alkyd resin, styrene acrylic copolymer resin, hydroxyl-functional acrylic-polyurethane resin, and combinations thereof; and a surfactant, said surfactant having a formula selected from the group consisting of: R1Oâ€”(CH2â€”CH(R2)â€”O)pâ€”(CH2â€”CH2â€”O)yâ€”R3â€ƒâ€ƒ(a) where R1 is â€”H or an alkyl group having 6-10 carbon atoms; R2 is an alkyl group having 1-4 carbon atoms; R3 is selected from the group consisting of â€”(CH2â€”CH(R2)â€”O)xâ€”H, â€”H, and â€”CH2â€”CH(OH)â€”(CH2)zCH3; p is an integer from 0-6; x is an integer from 1-6; y is an integer from 4-35; and z is an integer from 1-14; and Hâ€”(Oâ€”CHRâ€”CH2)aâ€”(Oâ€”CH2â€”CHR)bâ€”(Oâ€”CH2â€”CHR)aâ€”OHâ€ƒâ€ƒ(b) where R is H or CH3; a is an integer from about 1 to about 35; and b is an integer from about 5 to about 75; wherein said aqueous solvent comprises about 20 to about 80% by weight based upon the total weight of said coating composition, said resin comprises from about 12 to about 85% by weight based upon the total weight of said coating composition, and said surfactant comprises 0.01 to 3.0% by weight based upon the total weight of said coating composition; said combination forming a waterborne coating composition.