公开(公告)号：US5656696A

公开(公告)日：1997-08-12

申请号：US200683

申请日：1994-02-23

申请人： Koji Yamamoto ,  Keiko Shichijo ,  Norikazu Komiya

发明人： Koji Yamamoto ,  Keiko Shichijo ,  Norikazu Komiya

IPC分类号： C08L23/06 ,  C08L23/08 ,  C08L23/12

CPC分类号： C08L23/0815 ,  C08L23/06 ,  C08L23/12

摘要： A resin composition for injection molding that has excellent transparency, and also has excellent strength and sufficient flexibility. The composition contains 50 to 99% by weight of component A, which is a copolymer of ethylene and .alpha.-olefin having a carbon number of not less than 4, and 1 to 50% by weight of component B, which is an olefin-containing polymer. The component A has: (a) a melt flow rate (MFR) of 10 to 120 g/10 min.; (b) a density (D) of not more than 0.915 g/cm.sup.3 ; and (c) at least one peak of elution volume indicated by an elution curve obtained by temperature rising elution fractionation (TREF), wherein the peak corresponds to a temperature of not more than 85.degree. C., and the elution curve may also indicate substantial elution volume at temperatures other than the temperature to which the peak corresponds.

摘要翻译： 一种注塑成型用树脂组合物，透明性优异，强度优异，弹性好。 该组合物包含50至99重量％的组分A，其为乙烯与碳数不少于4的α-烯烃和1至50重量％的组分B的共聚物，组分B为含烯烃 聚合物。 组分A具有：（a）10至120g / 10min的熔体流动速率（MFR）。 （b）密度（D）不大于0.915g / cm 3; 和（c）由通过升温洗脱分级（TREF）获得的洗脱曲线指示的至少一个洗脱体积峰，其中峰对应于不高于85℃的温度，并且洗脱曲线还可以指示实质 在不同于峰对应温度的温度下的洗脱体积。