| 摘要 |
The present invention provides one component aqueous compositions comprising (i) from 0.01 to 7 wt.%, based on the total weight of solids in the composition, of anion exchange resin beads having a weight average particle size of from 0.1 to 20 µm a low crosslinker content, the anion exchange resin copolymer beads being chosen from gelular beads, beads having a dual morphology, and mixtures thereof, (ii) an emulsion copolymer having a copolymerization residue of one or more phosphorus acid monomer, and having an anionic surfactant or its polymerization residue and a reductant or its polymerization residue and, (iii) at least one phosphorous containing surfactant in the amount of from 0.1 to 5 wt.%, based on the weight of emulsion copolymer solids. The compositions find use as coating binders and either pigmented or unpigmented paints and enable the provision of a single coat primer plus topcoat with excellent stain blocking.
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