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    • 2. 发明申请
    • A POLYETHYLENE BLEND-COMPOSITION SUITABLE FOR BLOWN FILMS, AND FILMS MADE THEREFROM
    • 适用于黑色薄膜的聚乙烯混合组合物及其制备的薄膜
    • WO2014003926A1
    • 2014-01-03
    • PCT/US2013/042141
    • 2013-05-22
    • DOW GLOBAL TECHNOLOGIES LLC
    • WANG, JianSAVARGAONKAR, Nilesh, R.DEMIRORS, MehmetGARNETT, John, W.
    • B29C47/00C08J5/18C08L23/08
    • C08J5/18B29C47/0026B29K2023/0658C08J2323/08C08J2423/06C08L23/08C08L23/0815C08L2203/16C08L2205/025Y10T428/1352
    • The instant invention provides a polyethylene blend-composition suitable for blown films, and films made therefrom. The polyethylene blend-composition suitable for blown films comprises the melt blending product of: (a) from 0.5 to 4 percent by weight of a low density polyethylene having a density in the range of from 0.915 to 0.935 g/cm 3 , and a melt index (I 2 ) in the range of from greater than 0.8 to less than or equal to 5 g/10 minutes, and a molecular weight distribution (M w /M n ) in the range of from 6 to 10; (b) 90 percent or greater by weight of an ethylene/α-olefin interpolymer composition, wherein ethylene/α-olefin interpolymer composition has a Comonomer Distribution Constant (CDC) in the range of from 75 to 200, a vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the ethylene/α-olefin interpolymer composition; a zero shear viscosity ratio (ZSVR) in the range from 2 to 20; a density in the range of from 0.903 to 0.950 g/cm 3 , a melt index (I 2 ) in a range of from 0.1 to 5 g/ 10 minutes, a molecular weight distribution (M w /M n ) in the range of from 1.8 to 3.5; (c) optionally a hydrotalcite based neutralizing agent; (d) optionally one or more nucleating agents; (e) and optionally one or more antioxidants.
    • 本发明提供了适用于吹塑薄膜的聚乙烯共混组合物和由其制成的薄膜。 适用于吹塑薄膜的聚乙烯共混物组合物包括熔融共混产物:(a)0.5-4重量%的密度为0.915-0.935g / cm3的低密度聚乙烯,熔体指数 (I 2)在大于0.8至小于或等于5g / 10分钟的范围内,分子量分布(Mw / Mn)在6至10的范围内; (b)乙烯/α-烯烃互聚物组合物的90重量%或更多,其中乙烯/α-烯烃互聚物组合物的共聚单体分布常数(CDC)为75-200,乙烯基不饱和度小于 存在于乙烯/α-烯烃互聚物组合物的骨架中的每1000个碳原子上的0.1个乙烯基; 零剪切粘度比(ZSVR)在2至20的范围内; 密度范围为0.903〜0.950g / cm3,熔体指数(I2)为0.1〜5g / 10分钟,分子量分布(Mw / Mn)为1.8〜3.5 ; (c)任选的基于水滑石的中和剂; (d)任选的一种或多种成核剂; (e)和任选的一种或多种抗氧化剂。