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    • 34. 发明专利
    • Aqueous primer and aqueous primer composition
    • 水性原料和水性原料组合物
    • JP2014172992A
    • 2014-09-22
    • JP2013046434
    • 2013-03-08
    • Yokohama Rubber Co Ltd:The横浜ゴム株式会社
    • OKAMATSU TAKAHIRO
    • C08F220/14C09D5/00C09D5/02C09D133/00
    • C08F2/22C08F220/10C09D5/002C09D5/02C08F220/14C08F2220/1858C08F220/06C08F220/20C08F2230/085
    • PROBLEM TO BE SOLVED: To provide an acrylic emulsion excellent in water-resistant adhesiveness.SOLUTION: There is provided an acrylic emulsion containing acryl particles of which an average particle diameter is 0.6 μm or less and which are particles of a polymer obtained by polymerizing a polymerizable monomer having a (meth)acryloyl group (A) in a presence of persulphate (B) as a polymerization initiator, and the polymerizable monomer (A) contains (meth)acrylic acid alkyl ester monomer (A1) and a hydroxyl group-containing polymerizable monomer having a hydroxyl group (A2), a molar ratio (B/A1) of the persulphate (B) to the (meth)acrylic acid alkyl ester monomer (A1) is 0.007 or more, the molar ratio (OH/A1) of the hydroxyl group (OH) of the hydroxyl group-containing polymerizable monomer (A2) to the (meth)acrylic acid alkyl ester monomer (A1) is 0.05 or more, and a solid content is 15 mass% or more to less than 40 mass%.
    • 要解决的问题:提供具有优异的耐水粘合性的丙烯酸乳液。溶液:提供含有平均粒径为0.6μm以下的丙烯酸颗粒的丙烯酸乳液,它是通过聚合得到的聚合物的颗粒 在具有(甲基)丙烯酰基(A)的聚合单体中,在过硫酸盐(B)作为聚合引发剂的存在下,可聚合单体(A)含有(甲基)丙烯酸烷基酯单体(A1)和含羟基 具有羟基的可聚合单体(A2),过硫酸盐(B)与(甲基)丙烯酸烷基酯单体(A1)的摩尔比(B / A1)为0.007以上,摩尔比(OH / Al) 的含羟基的可聚合单体(A2)的羟基(OH)与(甲基)丙烯酸烷基酯单体(A1)的羟基(OH)为0.05以上,固体成分为15质量%以上且小于40 质量%。