Rheology modification of interpolymers of ethylene/α-olefins and articles made therefrom
    8.
    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

    IPC分类号: C08F210/16

    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。