A process for producing an aqueous copolymer dispersion is disclosed, which comprises emulsion polymerizing 100 parts by weight of a vinyl monomer mixture comprising (A) from 60 to 99.8% by weight of an acrylic ester of an aliphatic saturated alcohol having from 4 to 8 carbon atoms, (B) from 0.2 to 10% by weight of a monomer selected from the group consisting of an α,β-unsaturated carboxylic acid, an α,β-unsaturated carboxylic acid anhydride, a 2-hydroxyalkyl acrylate, a 2-hydroxyalkyl methacrylate, acrylamide, methacrylamide, methylolacrylamide, and methylolmethacrylamide, and (C) up to 30% by weight of a vinyl monomer other than the monomers (A) and (B) in the presence of from 0.01 to 10 parts by weight of a compound having an allyl hydrogen atom, with a total amount of the monomers (A), (B) and (C) being 100% by weight. The resulting aqueous copolymer dispersion can form a film which exhibits excellent adhesion performance particularly to an adherend having small polarity and gives off no smell.
本发明公开了一种生产
水性共聚物分散体的工艺,该工艺包括乳液聚合 100 重量份的
乙烯基单体混合物,该混合物包括(A)60-99.8%(重量)具有 4-8 个碳原子的脂肪族饱和醇的
丙烯酸酯,(B)0.2%至 10%(以重量计)的单体,该单体选自以下组别:α,β-不饱和
羧酸、α,β-不饱和
羧酸酐、2-羟基烷基
丙烯酸酯、2-羟基烷基
甲基丙烯酸酯、
丙烯酰胺、
甲基丙烯酸甲酯、
丙烯酸甲酯、
丙烯酸乙酯、
丙烯酸乙酯、
丙烯酸乙酯、
丙烯酸乙酯、
丙烯酸乙酯、
丙烯酸乙酯丙烯酰胺、甲基
丙烯酰胺、甲基醇
丙烯酰胺和甲基甲基
丙烯酰胺,以及 (C) 在 0.01至10份(重量)具有烯丙基氢原子的化合物,单体(A)、(B)和(C)的总量为100%(重量)。由此得到的
水性共聚物分散体可以形成一层薄膜,该薄膜具有优异的粘合性能,尤其是对极性较小的粘合剂,并且不散发任何气味。