PROCESS FOR MANUFACTURING POLYOLEFIN FILMS
    1.
    发明授权
    PROCESS FOR MANUFACTURING POLYOLEFIN FILMS 有权
    生产聚烯烃膜的方法

    公开(公告)号:EP2307180B1

    公开(公告)日:2011-11-09

    申请号:EP09765897.5

    申请日:2009-06-18

    Abstract: The present invention pertains to a process for manufacturing a film of ultra-high molecular weight polyolefin comprising the steps of subjecting a starting ultra-high molecular weight polyolefin with a weight average molecular weight of at least 500 000 gram/mole in powder form to a compacting step using an isobaric press, subjecting the compacted polyolefin to a rolling step and at least one stretching step under such conditions that at no point during the processing of the polymer its temperature is raised to a value above its melting point. The process allows for the manufacture of ultra-high molecular weight polyolefin films of high quality.

    Abstract translation: 本发明涉及一种制造超高分子量聚烯烃薄膜的方法,该方法包括以下步骤:使起始的超高分子量聚烯烃粉末形式的重均分子量为至少500 000克/摩尔的粉末形式的 使用等压压机进行压制步骤,将压实的聚烯烃进行压延步骤和至少一个拉伸步骤,在这样的条件下,在聚合物加工过程中的任何时刻其温度升高至高于其熔点的温度。 该方法允许制造高质量的超高分子量聚烯烃膜。

    METHOD FOR MANUFACTURING HIGH MOLECULAR WEIGHT POLYETHYLENE FIBERS
    2.
    发明公开
    METHOD FOR MANUFACTURING HIGH MOLECULAR WEIGHT POLYETHYLENE FIBERS 有权
    VERFAHREN ZUR HERSTELLUNG VON聚乙烯脂肪麻醉HOHEM MOLEKULARGEWICHT

    公开(公告)号:EP2300644A1

    公开(公告)日:2011-03-30

    申请号:EP09793947.4

    申请日:2009-07-08

    Abstract: The present invention pertains to a process for manufacturing high molecular weight polyethylene fibers, comprising subjecting a polyethylene tape with a weight average molecular weight of at least 500 000 gram/mole, an Mw/Mn ratio of at most 6, and a 200/110 uniplanar orientation parameter of at least 3 to a force in the direction of the thickness of the tape over the whole width of the tape. The invention also pertains to a polyethylene fiber having an Mw of at least 500 000 gram/mole, an Mw/Mn ratio of at most 6, and a 020 uniplanar orientation value of at most 55°. The use of these fibres in various applications is also claimed. The preparation of low-linear density fibers is particularly preferred.

    Abstract translation: 一种制造高分子量聚乙烯纤维的方法,包括使重均分子量至少为500,000克/摩尔,Mw / Mn比至多为6的聚乙烯带和至少为200/110的单面取向参数 3到在带的整个宽度上的带的厚度方向上的力。 Mw为至少500000克/摩尔,Mw / Mn比至多为6,和020单面取向值至多为55度的聚乙烯纤维。

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