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    Polymeric blend composition
    1.
    发明授权
    Polymeric blend composition 有权

    公开(公告)号：US09783667B2

    公开(公告)日：2017-10-10

    申请号：US14903486

    申请日：2014-09-16

    Applicant: Dow Global Technologies LLC

    Inventor： Laura B. Weaver ,  Wei Wang ,  Guang Ming Li ,  Lena T. Nguyen

    IPC: C08L23/14 ,  C08L23/16 ,  C08J5/18 ,  C08L23/08

    CPC classification number: C08L23/142 ,  C08J5/18 ,  C08J2323/08 ,  C08J2323/14 ,  C08J2423/08 ,  C08J2423/14 ,  C08L23/0815 ,  C08L23/0853 ,  C08L23/14 ,  C08L23/16 ,  C08L23/0807

    Abstract: The instant invention provides a polymeric blend composition, injection molded articles, films and sheets made therefrom. The polymeric blend composition according to the present invention comprises: (a) a first component selected from the group consisting of an ethylene/alpha-olefin copolymer and a propylene/ethylene copolymer; wherein said ethylene/alpha-olefin co-polymer has density in the range of from 0.857 to 0.902 g/cm3, a melt index (I2) in the range of from 0.5 to 30 g/10 minutes, a DCS melting point temperature (second heat) in the range of from 40 to 99° C., a heat of fusion in the range of from 18 to 108 Jg−1, and a crystallinity in the range of from 6 to 37 weight percent; and wherein propylene/ethylene copolymer has a melt flow rate in the range of from 1 to 30 g/10 minutes, a DCS melting point temperature (second heat) in the range of from 55 to 85° C., a heat of fusion in the range of from 10 to 40 Jg−1, and a crystallinity in the range of from 6 to 21 weight percent; and (b) less than 40 percent by weight of a second component comprising an ethylene vinyl acetate copolymer comprising from 9 to 40 percent by weight of units derived from vinyl acetate, and wherein said ethylene vinyl acetate copolymer has a melt index (I2) in the range of from 0.2 to 20 g/10 minutes; wherein Δn is less than 0.003, and wherein Δn is the absolute value of the difference between the refractive index of (a) and (b); and wherein dielectric loss factor of the polymeric blend composition is, equal to, or greater than, 0.024, for example in the range of greater than 0.024 to 0.15.

    A POLYMERIC BLEND COMPOSITION
    4.
    发明申请
    A POLYMERIC BLEND COMPOSITION 有权
    聚合混合组合物

    公开(公告)号：US20160194487A1

    公开(公告)日：2016-07-07

    申请号：US14903486

    申请日：2014-09-16

    Applicant: DOW GLOBAL TECHNOLOGIES LLC

    Inventor： Laura B. Weaver ,  Wei Wang ,  Guang Ming Li ,  Lena T. Nguyen

    IPC: C08L23/14 ,  C08J5/18 ,  C08L23/08

    CPC classification number: C08L23/142 ,  C08J5/18 ,  C08J2323/08 ,  C08J2323/14 ,  C08J2423/08 ,  C08J2423/14 ,  C08L23/0815 ,  C08L23/0853 ,  C08L23/14 ,  C08L23/16 ,  C08L23/0807

    Abstract: The instant invention provides a polymeric blend composition, injection molded articles, films and sheets made therefrom. The polymeric blend composition according to the present invention comprises: (a) a first component selected from the group consisting of an ethylene/alpha-olefin copolymer and a propylene/ethylene copolymer; wherein said ethylene/alpha-olefin co-polymer has density in the range of from 0.857 to 0.902 g/cm3, a melt index (I2) in the range of from 0.5 to 30 g/10 minutes, a DCS melting point temperature (second heat) in the range of from 40 to 99° C., a heat of fusion in the range of from 18 to 108 Jg−1, and a crystallinity in the range of from 6 to 37 weight percent; and wherein propylene/ethylene copolymer has a melt flow rate in the range of from 1 to 30 g/10 minutes, a DCS melting point temperature (second heat) in the range of from 55 to 85° C., a heat of fusion in the range of from 10 to 40 Jg−1, and a crystallinity in the range of from 6 to 21 weight percent; and (b) less than 40 percent by weight of a second component comprising an ethylene vinyl acetate copolymer comprising from 9 to 40 percent by weight of units derived from vinyl acetate, and wherein said ethylene vinyl acetate copolymer has a melt index (I2) in the range of from 0.2 to 20 g/10 minutes; wherein Δn is less than 0.003, and wherein Δn is the absolute value of the difference between the refractive index of (a) and (b); and wherein dielectric loss factor of the polymeric blend composition is, equal to, or greater than, 0.024, for example in the range of greater than 0.024 to 0.15.

    Abstract translation: 本发明提供了一种聚合共混组合物，由其制成的注塑制品，薄膜和薄片。 根据本发明的聚合物共混物组合物包含：（a）选自乙烯/α-烯烃共聚物和丙烯/乙烯共聚物的第一组分; 其中所述乙烯/α-烯烃共聚物的密度范围为0.857-0.902g / cm3，熔体指数（I 2）为0.5-30g / 10分钟，DCS熔点温度（秒 热）在40至99℃的范围内，熔化热为18至108Jg-1，结晶度为6至37重量％; 丙烯/乙烯共聚物的熔体流动速率为1〜30g / 10分钟，DCS熔点温度（第2次加热）为55〜85℃，熔融热 范围为10至40Jg-1，结晶度为6至21重量％; 和（b）小于40重量％的包含乙烯乙酸乙烯酯共聚物的第二组分，其包含9至40重量％的衍生自乙酸乙烯酯的单元，并且其中所述乙烯 - 乙酸乙烯酯共聚物的熔体指数（I 2）为 范围为0.2〜20g / 10分钟; 其中＆Dgr; n小于0.003，并且其中＆Dgr; n是（a）和（b）的折射率之间的差的绝对值; 并且其中所述聚合共混组合物的介电损耗因子等于或大于0.024，例如在大于0.024至0.15的范围内。

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