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    • 71. 发明公开
    • DISPERSION STABILIZER FOR SUSPENSION POLYMERIZATION, AND MANUFACTURING METHOD FOR VINYL RESIN
    • DISPERSIONSSTABILISATOR FERR DIE SUSPENSIONSPOLYMERISATION UND VERFAHREN ZUR HERSTELLUNG VON VINYLHARZEN
    • EP3031829A4
    • 2017-03-15
    • EP14834923
    • 2014-08-06
    • KURARAY CO
    • FUKUHARA TADAHITOKUMAKI YOSUKE
    • C08F2/20C08F2/30C08F8/12C08F18/04C08F216/06C08F218/08
    • C08F116/06C08F2/20C08F2/30C08F8/12C08F216/06C08F218/08C08L2201/54C08F222/16C08F220/06C08F222/02C08F2220/585C08F2216/1441C08F220/34
    • The present invention provides a highly water-soluble and easy-to-handle dispersion stabilizer for suspension polymerization that meets the following requirements: even if the amount of the dispersion stabilizer for suspension polymerization used for suspension polymerization of a vinyl compound is small, the resulting vinyl resin has high plasticizer absorptivity and is easy to work with; it is easy to remove residual monomer components from the resulting vinyl resin; and the resulting vinyl resin contains fewer coarse particles. The present invention relates to a dispersion stabilizer for suspension polymerization of a vinyl compound. This dispersion stabilizer contains a vinyl alcohol polymer (A) having a degree of saponification of 20 mol% or more and less than 65 mol%, a viscosity average degree of polymerization (P) of 100 or more and less than 600, an aliphatic hydrocarbon group having 6 to 18 carbon atoms at its terminal, and an anionic group in its side chain.
    • 本发明提供一种用于悬浮聚合的高度水溶性和易于操作的分散稳定剂,其满足以下要求:即使用于乙烯基化合物的悬浮聚合的悬浮聚合用分散稳定剂的量小,所得到的 乙烯基树脂具有较高的增塑剂吸收性并且易于加工; 很容易从所得乙烯基树脂中除去残留的单体组分; 所得乙烯基树脂含有较少的粗颗粒。 本发明涉及用于乙烯基化合物的悬浮聚合的分散稳定剂。 该分散稳定剂含有皂化度为20摩尔%以上且小于65摩尔%,粘均聚合度(P)为100以上且小于600的乙烯醇系聚合物(A),脂肪族烃 在其末端具有6-18个碳原子的基团,以及在其侧链上的阴离子基团。