公开(公告)号：CA2742244A1

公开(公告)日：2010-05-20

申请号：CA2742244

申请日：2009-11-11

Applicant: BASF SE

Inventor： COSYNS AUDREY ,  WIESE HARM ,  WILDESON JACOB ,  KELLY JOHN

IPC: C09D143/02 ,  C09D133/08 ,  C09D133/10

Abstract: 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 polymerization of an ethylenically unsaturated nonionic monomer, greater than 0 and less than 1.5% by weight of an ethylenically unsaturated strong acid monomer or salt thereof, and greater than 1.5% and less than 3% by weight of methacrylic acid.