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    FILMS AND LAYERS
    3.
    发明专利
    FILMS AND LAYERS 未知

    公开(公告)号：CA2193320A1

    公开(公告)日：1997-06-28

    申请号：CA2193320

    申请日：1996-12-18

    Applicant: HOECHST AG

    Inventor： WINTER ANDREAS ,  HOFMANN ERNST ,  WIENERS GERHARD ,  BACHMANN BERND

    IPC: B29D7/01 ,  B32B27/32 ,  C08F4/42 ,  C08F4/64 ,  C08F4/6592 ,  C08J5/18 ,  C08L23/00 ,  C08L23/02 ,  C08L23/06 ,  B65D30/02

    Abstract: The present invention relates to single- or multilayer films and one or more layers comprising at least one polyolefin molding composition containing at least one polyolefin derived from at least one olefin having at least 2 carbon atoms, of the formula Ra-CH=CH-Rb, in which Ra and Rb are identical or different and are a hydrogen atom or a straight-chain or branched C1-C15-alkyl radical, or Ra and Rbtogether with the atoms connecting them, form a ring or ring system, and the polyolefin has been prepared by means of metallocene catalysts. The present invention furthermore relates to a process for the production of films and layers in which a polyolefin molding composition having a particle size of from 20 .mu.m to 5000 .mu.m is used or prepared. The shaped polyolefin molding composition is melt-mixed with at least one additive and shaped. The melt-mixed and shaped material is melted at a temperature of from 150.degree.C to 300.degree.C. The molten material is cooled and at the same time shaped to give a film or layer. Finally, the present invention also relates to the use of films and layers for the production of articles such as bags, composite materials and laminates.

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