Narrow MWD, compositionally optimized ethylene interpolymer composition, process for making the same and article made therefrom
    6.
    发明授权
    Narrow MWD, compositionally optimized ethylene interpolymer composition, process for making the same and article made therefrom 有权
    窄MWD,组分优化的乙烯互聚物组合物,其制备方法和由其制备的制品

    公开(公告)号:US06469103B1

    公开(公告)日:2002-10-22

    申请号:US09156948

    申请日:1998-09-18

    IPC分类号: C08L2306

    摘要: The present invention pertains to an ethylene interpolymer composition characterized as having a narrow molecular weight distribution (MWD) and optimized compositional uniformity, a process for making such a composition and a fabricated article made from such composition. The novel composition is characterized as having at least two polymer components, the first component having an ATREF peak temperature, Tpeak1 and a viscosity average molecular weight, Mv1, and the second component having an ATREF peak temperature, Tpeak2, and a viscosity average molecular, Mv2, wherein the temperature differential between Tpeak2 and Tpeak1 decreases with increased composition density and Mv1/Mv2 is less than or equal to 1.2. The novel composition is further characterized as having a Mw/Mn of less than or equal to 3.3 as determined by gel permeation chromatography, an I10/I2>6.6, and a composition density less than 0.945 gram/cubic centimeter. The novel composition exhibits high, balanced toughness properties, good processibility and surprisingly improved optical properties and is particularly well-suited for use in applications such as lamination films trash can liners and heavy duty shipping bags, especially as a blown film.

    摘要翻译: 本发明涉及具有窄分子量分布(MWD)和优化组合均匀性的乙烯互聚物组合物,制备这种组合物的方法和由这种组合物制成的制造制品。 该新型组合物的特征在于具有至少两种聚合物组分,第一组分具有ATREF峰温度,Tpeak1和粘均分子量Mv1,第二组分具有ATREF峰温度Tpeak2和粘均分子, Mv2,其中Tpeak2和Tpeak1之间的温差随着组成密度的增加而降低,Mv1 / Mv2小于或等于1.2。 该新型组合物的特征还在于通过凝胶渗透色谱法测定的Mw / Mn小于或等于3.3,I10 / I2> 6.6,组成密度小于0.945克/立方厘米。 该新型组合物显示出高的平衡的韧性,良好的加工性和令人惊奇的改进的光学性能,特别适用于诸如层压膜垃圾桶衬里和重型运输袋,特别是作为吹塑薄膜的应用。

    Narrow MWD, compositionally optimized ethylene interpolymer composition, process for making the same and article made therefrom
    8.
    发明授权
    Narrow MWD, compositionally optimized ethylene interpolymer composition, process for making the same and article made therefrom 有权
    窄MWD,组分优化的乙烯互聚物组合物,其制备方法和由其制备的制品

    公开(公告)号:US06683149B2

    公开(公告)日:2004-01-27

    申请号:US10247025

    申请日:2002-09-19

    IPC分类号: C08F11002

    摘要: The present invention pertains to an ethylene interpolymer composition characterized as having a narrow molecular weight distribution (MWD) and optimized compositional uniformity, a process for making such a composition and a fabricated article made from such composition. The novel composition is characterized as having at least two polymer components, the first component having an ATREF peak temperature, Tpeak1 and a viscosity average molecular weight, Mv1, and the second component having an ATREF peak temperature, Tpeak2, and a viscosity average molecular, Mv2, wherein the temperature differential between Tpeak2 and Tpeak1 decreases with iincreased composition density and Mv1/Mv2 is less than or equal to 1.2. The novel composition exhibits high, balanced toughness properties, good processibility and surprisingly improved optical properties and is particularly well-suited for use in applications such as lamination films trash can liners and heavy duty shipping bags, especially as a blown film.

    摘要翻译: 本发明涉及具有窄分子量分布(MWD)和优化组合均匀性的乙烯互聚物组合物,制备这种组合物的方法和由这种组合物制成的制造制品。 该新型组合物的特征在于具有至少两种聚合物组分,第一组分具有ATREF峰温度,Tpeak1和粘均分子量Mv1,第二组分具有ATREF峰温度Tpeak2和粘均分子, Mv2,其中Tpeak2和Tpeak1之间的温差随着组合物浓度的增加而降低,Mv1 / Mv2小于或等于1.2。 该新型组合物显示出高的平衡的韧性,良好的加工性和令人惊奇的改进的光学性能,特别适用于诸如层压膜垃圾桶衬里和重型运输袋,特别是作为吹塑薄膜的应用。