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    • 11. 发明专利
    • Method for producing acrylic copolymer
    • 生产丙烯酸共聚物的方法
    • JP2005272557A
    • 2005-10-06
    • JP2004086082
    • 2004-03-24
    • Yunimatekku Kkユニマテック株式会社
    • HORIUCHI MASAYOSHISAGAWA TOSHIMASATATSU HARUMI
    • C09K3/18C08F2/01C08F2/28C08F2/30C08F20/24C08F220/18C08F220/24
    • C08F220/24C08F2/28C08F2/30C08F220/18
    • PROBLEM TO BE SOLVED: To provide a method for producing an acrylic copolymer excellent in mechanical emulsification of a monomer mixture and excellent in stability and water repellency and oil repellency of an emulsion during polymerization and formation.
      SOLUTION: The method for producing an acrylic copolymer comprises subjecting a monomer mixture to emulsion polymerization in the presence of a nonionic and/or a cationic surfactant, the monomer mixture comprising (a) 30-70 wt% of a perfluoroalkyl-alkyl (meth)acrylate represented by the general formula: CH
      2 =CRCOOR'Rf (wherein R is a hydrogen atom or a methyl group; R' is a straight-chain or branched 1-8C alkylene group; and Rf is a 4-16C perfluoroalkyl group); (b) 25-60 wt% of a stearyl (meth)acrylate, (c) 0.1-5 wt% of a (meth)acrylamide, and (d) 0.1-5 wt% of an N-methylol(meth)acrylamide, wherein a polypropylene glycol-based compound having a molecular weight of 250-5,000 is used in combination as an emulsifying agent.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 解决问题的方法:提供单体混合物的机械乳化性优异的丙烯酸共聚物的制造方法,在聚合和形成过程中乳液的稳定性,拒水性和拒油性优异。 解决方案:制备丙烯酸共聚物的方法包括在非离子和/或阳离子表面活性剂的存在下使单体混合物进行乳液聚合,所述单体混合物包含(a)30-70重量%的全氟烷基 - 烷基 由下列通式表示的(甲基)丙烯酸酯:CH 2 SBR = CRCOOR'Rf(其中R是氢原子或甲基; R'是直链或支链的1-8C亚烷基; Rf为4-16C全氟烷基); (b)25-60重量%的(甲基)丙烯酸硬脂酯,(c)0.1-5重量%的(甲基)丙烯酰胺,和(d)0.1-5重量%的N-羟甲基(甲基)丙烯酰胺, 其中组合使用分子量为250-5,000的聚丙二醇基化合物作为乳化剂。 版权所有(C)2006,JPO&NCIPI