Aqueous coating compositions comprising acrylic oligomers,...

Details Aqueous coating compositions comprising acrylic oligomers,... Aqueous coating compositions comprising acrylic oligomers,...

B - Operations, Transporting

32

B

117/183, 400/400

B32B 15/08 (2006.01) B05D 1/28 (2006.01) C09D 133/00 (2006.01) C08L 33/06 (2006.01)

Patent

CA 1145080

Abstract of the Disclosure This invention discloses stable water-based thermosettable coating compositions particularly adapted for the direct roll coating of substrates. The composition comprises (1) an aqueous solution of colloidal solution of a volatile amine or ammonium salt of a high molecular weight carboxylic acid-containing acrylic copolymer, (2) a car- boxylic acid-containing acrylic oligomer in the solution, and (3) an aqueous dispersion or solution of a crosslinker; the volatile aqueous phase being by volume 70 to 95% water and 5 to 30% organic solvents, the solids content 15 to 70% by weight and the viscosity between 25 and 150 seconds measured in a number 4 Ford cup.

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