Preparation of concentrated polyacrylate dispersions
    2.
    发明授权
    Preparation of concentrated polyacrylate dispersions 失效
    浓缩聚丙烯酸酯分散体的制备

    公开(公告)号:US4424298A

    公开(公告)日:1984-01-03

    申请号:US372799

    申请日:1982-04-28

    CPC分类号: C08F220/12

    摘要: Emulsion copolymerization of acrylic or methacrylic acid esters with from 0.3 to 10% by weight of .alpha.,.beta.-monoolefinically unsaturated monocarboxylic acids and/or dicarboxylic acids and/or their amides, with or without up to 25% by weight of styrene, acrylonitrile, vinyl acetate and/or vinyl chloride, using the emulsion feed process, gives particularly concentrated copolymer dispersions if an emulsifier system of 0.01-5.0% by weight of a sulfuric acid half-ester of an oxyalkylated alkylphenol and 0.01-1% by weight of a dialkyl sulfosuccinate, where alkyl is of 6 to 18 carbon atoms, is employed and the polymerization is carried out at pH 2-6.

    摘要翻译: 丙烯酸或甲基丙烯酸酯与0.3至10重量%的α,β-单烯属不饱和一元羧酸和/或二羧酸和/或其酰胺的乳液共聚合,具有或不含有至多25重量%的苯乙烯,丙烯腈, 使用乳液进料方法的乙酸乙烯酯和/或氯乙烯,如果使用0.01-5.0重量%的烷氧基化烷基酚的硫酸半酯的乳化剂体系和0.01-1重量% 二烷基磺基琥珀酸盐,其中烷基为6至18个碳原子,聚合反应在pH2-6下进行。