Aqueous stain blocking coating compositions

Details Aqueous stain blocking coating compositions Aqueous stain blocking coating compositions

C - Chemistry, Metallurgy

09

D

C09D 143/02 (2006.01) C09D 133/08 (2006.01) C09D 133/10 (2006.01)

Patent

CA 2742244

An aqueous coating composition for blocking stains and a method of using the coating composition is described. The coating composition includes an aqueous dispersion of a copolymer that is derived from a single stage emulsion polymeriza-tion of an ethylenically unsaturated nonionic monomer, greater than 0 and less than 1.5% by weight of an ethylenically unsaturat-ed strong acid monomer or salt thereof, and greater than 1.5% and less than 3% by weight of methacrylic acid.

La présente invention concerne une composition aqueuse antitache pour revêtement et un procédé d'utilisation de cette composition pour revêtement. Cette composition pour revêtement comprend une dispersion aqueuse d'un copolymère dérivé de la polymérisation d'émulsion en une seule opération d'un monomère non ionique éthyléniquement insaturé, de plus de 0% et de moins de 1,5% en poids d'un monomère d'acide fort éthyléniquement insaturé ou de l'un de ses sels, et de plus de 1,5% et de moins de 3% en poids d'acide méthacrylique.

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