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    • 197. 发明授权
    • Continuous multi-zone graft polymerization
    • 连续多区域接枝聚合
    • US4314041A
    • 1982-02-02
    • US190950
    • 1980-09-26
    • Shin-ichi ShimokawaYuji Yamamoto
    • Shin-ichi ShimokawaYuji Yamamoto
    • C08F255/00C08F2/06C08F255/04C08F255/06
    • C08F255/06
    • In a process for continuously producing an impact-resistant resin containing 5 to 30% by weight of a rubber by the solution-graft-polymerization of a monomer mixture of an aromatic vinyl compound and a vinyl cyanide compound in the presence of an ethylene-propylene-non-conjugated diene terpolymer rubber in an inert solvent comprising as essential component an aromatic hydrocarbon, two or more polymerizers connected in series are used; said rubber is fed to the first polymerizer in the form of a homogeneous solution in a part or whole of said monomers and/or said inert solvent, together with the remaining monomer or monomers and/or inert solvent; the rubber is kept in the dispersed state in the first polymerizer; said monomers are polymerized therein with stirring until the polymerization conversion reaches 40 to 80% by weight based on the monomers, and the remaining monomers are further polymerized with stirring in the second and succeeding polymerizers to substantially complete the polymerization. The resin prepared by the above improved method is excellent in gloss, hardness, chemical resistance and, in addition, in weather resistance and impact resistance.
    • 在通过芳香族乙烯基化合物和乙烯基氰化合物的单体混合物在乙烯 - 丙烯存在下的溶液接枝聚合来连续制造含有5〜30重量%的橡胶的耐冲击性树脂的方法 非共轭二烯三元共聚物橡胶在惰性溶剂中作为必要组分的芳族烃,使用两个或更多个串联的聚合反应器; 所述橡胶与剩余的单体或单体和/或惰性溶剂一起以所述单体和/或所述惰性溶剂的一部分或全部的均匀溶液的形式加入到第一聚合器中; 橡胶在第一聚合反应器中保持分散状态; 所述单体在搅拌下聚合,直到基于单体的聚合转化率达到40〜80重量%,剩余的单体在第二次和随后的聚合反应器中进一步搅拌聚合,基本上完成聚合。 通过上述改进方法制备的树脂的光泽度,硬度,耐化学性以及耐候性和耐冲击性均优异。