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    • 2. 发明专利
    • Emulsifying agent
    • 仿制剂
    • JP2003012797A
    • 2003-01-15
    • JP2001199087
    • 2001-06-29
    • Mitsui Chemicals Inc三井化学株式会社
    • YOSHIZAWA HIDEKAZUSHINODA NORIMASAKITSUKA HISAFUMI
    • B01F17/52C08F2/24C08G69/10C08G69/48C08G73/10C08L79/08
    • PROBLEM TO BE SOLVED: To obtain a new high-molecular emulsifying agent which is water-soluble, and biodegradable or alkali decomposable, especially, an emulsifying agent exhibiting excellent characteristics as an emulsifying agent in emulsion polymerization and capable of controlling the particle sizes of formed particles by the amount of its addition, and further an emulsifying agent capable of being hydrolyzed when remains on the surface of the formed particles after the finish of emulsifying polymerization and capable of expectably improving the properties of an obtained latex, and the like.
      SOLUTION: A polyaspartic acid derivative having a hydrophilic group such as an amphoteric ion structure or a carboxylic group, and a hydrophobic group such as a long chain alkyl group at the same time in its structure.
      COPYRIGHT: (C)2003,JPO
    • 要解决的问题:为了获得水溶性,可生物降解或碱可分解的新型高分子乳化剂,特别是乳液聚合中作为乳化剂具有优异特性的乳化剂,能够控制形成的粒子的粒径 颗粒的添加量,还有一种在乳化聚合结束后残留在形成颗粒表面上能够水解的能够预期提高所得胶乳性能的乳化剂等。 解决方案:具有两性离子结构或羧基等亲水性基团的聚天冬氨酸衍生物,长链烷基等疏水基团。