| 摘要 |
<p>The invention relates to an emulsified acrylic copolymer for high resistance paints, said product being obtained by in-emulsion copolymerization of a monomer mixture consisting of 3.0...12.0 parts of ethyl acrylate with 48.0...65.0 parts of methyl methacrylate and 2.0...18.0 parts of butyl methacrylate, in the presence of 1.0...2.5 parts of sodium dodecylsulphate as 20% aqueous solution, 0.3...0.8 parts of nonylphenolethoxylated with 30 moles of ethylene oxide, 0.03...0.1 parts of tertiary-dodecyl mercaptan, 0.3...0.6 parts of potassium persulphate, 0.2...0.4 parts of sodium bicarbonate, 120.0...130.0 parts of softened water and the final neutralization of the emulsified copolymer, with 0.5...8.0 parts of ammonia, as 25% aqueous solution, the parts being expressed by weight.</p> |
