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ACRYLIC EMULSION, WATER-BASED PRIMER, AND WATER-BASED PRIMER COMPOSITION
ACRYLIC EMULSION, WATER-BASED PRIMER, AND WATER-BASED PRIMER COMPOSITION
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机译:丙烯酸乳液,水性底漆和水性底漆组合物
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摘要
To provide an acrylic emulsion that exhibits excellent water-resistant adhesion. The acrylic emulsion contains acrylic particles, and the average particle size of the acrylic particles is 0.6 mm or less. The acrylic particles are polymer particles obtained by polymerizing a polymerizable monomer (A) having a (meth)acryloyl group in the presence of a persulfate (B). The polymerizable monomer (A) comprises a (meth)acrylic acid alkyl ester monomer (A1) and a hydroxy group-containing polymerizable monomer (A2). The molar ratio (B/A1) of the persulfate (B) to the (meth)acrylic acid alkyl ester monomer (A1) is 0.007 or higher. The molar ratio (OH/A1) of the hydroxy group (OH) of the hydroxy group-containing polymerizable monomer (A2) to the (meth)acrylic acid alkyl ester monomer (A1) is 0.05 or higher. The solid content of the acrylic emulsion is 15 mass pcnt or higher but less than 40 mass pcnt .
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