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    • 3. 发明授权
    • Low-shrinkage polyethylene moulding compounds
    • 低收缩聚乙烯模塑料
    • US5981664A
    • 1999-11-09
    • US981048
    • 1997-12-11
    • Petra NeumannSiegfried WeberDieter LilgeHans-Helmut Gortz
    • Petra NeumannSiegfried WeberDieter LilgeHans-Helmut Gortz
    • C08J5/18C08L23/04C08L23/06C08L23/08D01F6/04
    • C08L23/06C08L23/0815
    • Molding compositions are based on polymers of ethylene made from(A) from 40 to 65% by weight of an ethylene polymer having a density in the range from 0.948 to 0.964 g/cm.sup.3, a melt flow index (MFI) of from 6 to 20 g/10 min and a mean molar mass distribution M.sub.w /M.sub.n in the range from 2 to 5,(B) from 35 to 60% by weight of an ethylene polymer having a density in the range from 0.935 to 0.953 g/cm.sup.3, a melt flow index (MFI) of from 0.1 to 0.35 g/10 min and a mean molar mass distribution M.sub.w /M.sub.n in the range from 6 to 20, and(C) from 0 to 6% by weight of the usual additives for thermoplastics,where the density of the molding compositions is in the range from 0.948 to 0.957 g/cm.sup.3, the melt flow index is in the range from 1.0 to 2.0 g/10 min, the mean molar mass distribution M.sub.w /M.sub.n is in the range from 3 to 10 and the difference of the densities of components A and B (.DELTA.D=D.sub.(A) -D.sub.(B)) is in the range from 0 to 0.029 g/cm.sup.3.
    • PCT No.PCT / EP96 / 02958 Sec。 371 1997年12月11日第 102(e)日期1997年12月11日PCT提交1996年7月5日PCT公布。 第WO97 / 04025号公报 日期1997年2月6日模塑组合物基于由(A)40重量%至65重量%的密度为0.948至0.964克/厘米3的乙烯聚合物,熔体流动指数(MFI) 6至20g / 10min,平均摩尔质量分布+ E,ovs M + EE w / + E,ovs M + EE n在2至5的范围内,(B)为35至60重量% 的密度在0.935至0.953g / cm 3范围内的乙烯聚合物,熔体流动指数(MFI)为0.1至0.35g / 10min,平均摩尔质量分布+ E,ovs M + EE w / + E,ovs M + EE n在6至20的范围内,和(C)0至6重量%的热塑性塑料的常用添加剂,其中模塑组合物的密度在0.948至0.957g / cm 3,熔体流动指数在1.0至2.0g / 10min的范围内,平均摩尔质量分布+ E,ovs M + EE w / + E,ovs M + EE n在3至10的范围内, 成分A和B(DELTA D = D(A)-D(B))的密度差在0〜 0.029g / cm 3。