| 摘要 |
<p>The invention relates to an emulsified vinylic copolymer meant to be used for preparing wood primers. According to the invention, the composition is obtained by in-emulsion polymerizing a mixture made up of 2,0...10,0 parts of ethyl acrylate, 20,0...35,0 parts of butyl acrylate, 0,5...3,0 parts of acrylic acid, 4,0...18,0 parts of methyl methacrylate, 30,0...50,0 parts of phenyl ethylene, 4,0...15,0 parts of 2-ethylhexil acrylate and 4,0...15,0 parts of butyl methacrylate , in the presence of 0,5...1,5 parts of sodium dodecylsulphate, 6,0...9,0 parts of sodium dodecylbenzenesulphonate, 0,1...0,3 parts of ethoxylated nonylphenol with 10 ethylenoxde moles, 1,0...1,8 parts of ethoxylated nonylphenol with 16 ethylenoxide moles, 0,1...0,3 parts of ethoxylated nonylphenol with 30 ethylenoxide moles, 0,15...0,25 parts of tert-dodecylmercaptan, 0,3...0,6 parts of potassium persulphate, 0,2...0,4 parts of sodium bicarbonate, 110,0...120,0 parts of soft water, followed by the final neutralization with 0,5...8,0 parts of ammonia, as 25% aqueous solution, the parts being expressed by weight.</p> |
