ROTOMOLDED ARTICLES COMPRISING METALLOCENE-CATALYZED POLYETHYLENE RESIN
    7.
    发明公开
    ROTOMOLDED ARTICLES COMPRISING METALLOCENE-CATALYZED POLYETHYLENE RESIN 审中-公开
    旋转胶原蛋白金属蛋白酶体聚乙烯

    公开(公告)号:EP3158001A1

    公开(公告)日:2017-04-26

    申请号:EP15793802.8

    申请日:2015-11-10

    IPC分类号: C08L23/08

    摘要: The present invention relates to a rotomolded article, comprising at least one metallocene-catalyzed polyethylene resin comprising at least two metallocene-catalyzed polyethylene fractions A and B, wherein the polyethylene resin comprises: at least 25% to at most 55% by weight of polyethylene fraction A based on the total weight of the polyethylene resin, wherein fraction A has a melt index MI2 of at least 25.0 g/10 min as determined according to ISO 1133, condition D, at 190°C and under a load of 2.16 kg, and a density at least 0.005 g/cm
    3 higher than the density of the polyethylene resin; and wherein the polyethylene resin has a density of at least 0.938 g/cm
    3 to at most 0.950 g/cm
    3 as measured according to ASTM D-1505 at 23°C; a melt index MI2 of at least 1.0 g/10 min to at most 25.0 g/10 min as determined according to ISO 1133, condition D, at 190°C and under a load of 2.16 kg. The present invention also relates to a process for preparing said rotomolded article.

    摘要翻译: 本发明涉及一种滚塑制品,其包含至少一种茂金属催化的聚乙烯树脂,其包含至少两种茂金属催化的聚乙烯级分A和B,其中所述聚乙烯树脂包含:至少25重量%至至多55重量%的聚乙烯 基于聚乙烯树脂的总重量的级分A,其中级分A的熔体指数MI2根据ISO 1133测定为至少25.0g / 10min,条件D在190℃和2.16kg负荷下测定, 并且比聚乙烯树脂的密度高至少0.005g / cm 3的密度; 并且其中所述聚乙烯树脂在23℃下根据ASTM D-1505测量的密度为至少0.938g / cm 3至至多0.950g / cm 3; 根据ISO 1133,条件D,在190℃和2.16kg的负荷下测定的熔体指数MI2为至少1.0g / 10min至至多25.0g / 10min。 本发明还涉及一种制备所述滚塑制品的方法。