Stabilised aqueous compositions comprising cationic polymers that deliver paint and primer properties in a coating
申请人:Rohm and Haas Company
公开号:EP2518109A1
公开(公告)日:2012-10-31
The present invention provides one component aqueous compositions comprising (i) a cationic stain blocking polymer chosen from (a) 0.01 to 7 wt.% of anion exchange resin copolymer gelular or dual morphology beads that have a weight average particle size of from 0.1 to 20 µm and a low copolymerized crosslinker content of from 0.5 to 2.0 wt.%, (b) from 1 to 30 wt.% a crosslinked cationic addition polymer having the copolymerized residue of a monomer chosen from a cationic monomer or a monomer that is modified to contain a cation, and (c) mixtures thereof, (ii) one or more emulsion copolymer having a copolymerized residue of at least one phosphorus acid monomer, and (iii) a stabilizer of from 0.1 to 2 wt.%, based on the total weight of emulsion copolymer solids, of an inorganic phosphorus containing dispersant, and from 0.2 to 5.0 wt.%, based on the total weight of emulsion copolymer solids, of a mixture of a nonionic surfactant and an anionic surfactant. The compositions provide stabilized binders for in a single coat primer plus topcoat coatings and paints.
本发明提供了单组分水性组合物,其包含(i)阳离子染色阻断聚合物,该聚合物选自(a) 0.01 至 7 wt.%的阴离子交换树脂共聚物凝胶状或双形态珠子,其重量平均粒径为 0.1 至 20 µm,低共聚交联剂含量为 0.5 至 2.0 wt.%;(b) 1 至 30 wt.%的交联阳离子加成聚合物,其单体的共聚残余物选自阳离子单体或经改性以含有阳离子的单体,以及(c)它们的混合物;(ii)一种或多种乳液共聚物,其单体的共聚残余物为至少一种磷酸单体;以及(iii)0.(iii) 基于乳液共聚物固体总重量的 0.1 至 2 重量%的无机含磷分散剂,以及基于乳液共聚物固体总重量的 0.2 至 5.0 重量%的非离子表面活性剂和阴离子表面活性剂混合物。这些组合物为单层底漆加面漆涂料和油漆提供了稳定粘合剂。