利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

83 条记录 (耗时 0.052 秒)

    Rheology modification of interpolymers of ethylene/α-olefins and articles made therefrom
    43.
    发明授权
    Rheology modification of interpolymers of ethylene/α-olefins and articles made therefrom 有权
    乙烯/α-烯烃互聚物及其制品的流变改性

    公开(公告)号：US07795321B2

    公开(公告)日：2010-09-14

    申请号：US11378657

    申请日：2006-03-15

    申请人： Yunwa W. Cheung ,  Felipe Martinez ,  Pankaj Gupta

    发明人： Yunwa W. Cheung ,  Felipe Martinez ,  Pankaj Gupta

    IPC分类号： C08F210/16

    CPC分类号： C08L23/0815 ,  C08L23/06 ,  C08L23/10 ,  C08L23/16 ,  C08L2205/03 ,  C08L2207/07 ,  C08L2666/02

    摘要： Rheology modification of an ethylene/α-olefin interpolymer is achieved by blending the interpolymer with at least one branched polyolefin. The polyolefins can be homopolymers or interpolymers and have a branching index of less than 1. The ethylene/α-olefin interpolymer is a block copolymer having at least a hard block and at least a soft block. The soft block comprises a higher amount of comonomers than the hard block. The block interpolymer has a number of unique characteristics disclosed here. Rheology-modified ethylene/α-olefin interpolymer, i.e., the resulting polymer blends, can be extruded or molded into many useful articles, such as films, sheets, profiles, gaskets, foams, etc.

    摘要翻译： 通过将互聚物与至少一种支化聚烯烃共混来实现乙烯/α-烯烃互聚物的流变改性。 聚烯烃可以是均聚物或互聚物并且具有小于1的支化指数。乙烯/α-烯烃互聚物是具有至少一个硬嵌段和至少一个软嵌段的嵌段共聚物。 软块包含比硬块更高量的共聚单体。 嵌段互聚物具有这里公开的许多独特特征。 流变改性的乙烯/α-烯烃互聚物，即所得的聚合物共混物，可被挤出或模制成许多有用的制品，如薄膜，片材，型材，垫圈，泡沫等。

    Blends of .alpha.-olefin/vinyl aromatic monomer and/or aliphatic or cycloaliphatic vinyl or vinylidene monomer interpolymers
    50.
    发明授权
    Blends of .alpha.-olefin/vinyl aromatic monomer and/or aliphatic or cycloaliphatic vinyl or vinylidene monomer interpolymers 失效
    α-烯烃/乙烯基芳族单体和/或脂族或脂环族乙烯基或亚乙烯基单体互聚物的共混物

    公开(公告)号：US6166145A

    公开(公告)日：2000-12-26

    申请号：US121461

    申请日：1998-07-23

    申请人： Martin J. Guest ,  Yunwa W. Cheung ,  John J. Gathers ,  Pak-Wing S. Chum

    发明人： Martin J. Guest ,  Yunwa W. Cheung ,  John J. Gathers ,  Pak-Wing S. Chum

    IPC分类号： C08J5/18 ,  C08J9/00 ,  C08L23/00 ,  C08L23/04 ,  C08L23/08 ,  C08L25/02 ,  C08L25/04 ,  C08L25/08 ,  C09J123/02 ,  C09J125/02 ,  C09J145/00 ,  C09K3/10 ,  D01F6/44 ,  C08L45/00

    CPC分类号： C08L23/04 ,  C08L23/0815 ,  C08L23/0838 ,  C08L25/02 ,  C08L2205/02 ,  Y10T428/1397 ,  Y10T428/2913 ,  C08L2666/04

    摘要： Blends of polymeric materials comprising a plurality of substantially random interpolymers each interpolymer comprising:(1) from about 1 to about 65 mole percent of polymer units derived from either(a) at least one vinyl aromatic monomer or(b) at least one aliphatic or cycloaliphatic vinyl or vinylidene monomer, or(c) a combination of at least one vinyl aromatic monomer and at least one aliphatic or cycloaliphatic vinyl or vinylidene monomer, and(2) from about 35 to about 99 mole percent of polymer units derived from ethylene and/or at least one aliphatic alpha olefin having from 3 to 20 carbon atoms; and wherein:the amount of polymer units derived from vinyl aromatic monomer and/or aliphatic or cycloaliphatic vinyl or vinylidene monomer in any interpolymer component differs from that amount in another interpolymer component by at least 0.5 mole percent.These blends of interpolymer components give enhanced properties or processability when compared to the individual polymers comprising the blend.

    摘要翻译： 包含多个基本无规共聚体的聚合材料的共混物，每个共聚体包含：（1）约1至约65摩尔％的衍生自（a）至少一种乙烯基芳族单体的聚合物单元或（b）至少一种脂族或 脂环族乙烯基或亚乙烯基单体，或（c）至少一种乙烯基芳族单体和至少一种脂族或脂环族乙烯基或亚乙烯基单体的组合，和（2）约35至约99摩尔％的衍生自乙烯和 /或至少一种具有3至20个碳原子的脂族α-烯烃; 并且其中：衍生自乙烯基芳族单体和/或任何互聚物组分中的脂族或脂环族乙烯基或亚乙烯基单体的聚合物单元的量与另一互聚物组分中的量的量不同至少为0.5摩尔％。 当与包含共混物的各种聚合物相比时，互聚物组分的这些共混物提供了增强的性能或加工性能。