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    Polyethylene film with high tensile strength and high tensile energy to break
    192.
    发明公开
    Polyethylene film with high tensile strength and high tensile energy to break 有权
    Polyethylenfolie mit hoher Bruchfestigkeit und hoher Zugbrucharbeit

    公开(公告)号：EP2865512A1

    公开(公告)日：2015-04-29

    申请号：EP15151068.2

    申请日：2008-07-02

    Applicant: Teijin Aramid B.V.

    Inventor： Weijer De, Anton Peter ,  Van De Hee, Hendrik ,  Peters, Martinus ,  Rastogi, Sanjay ,  Wang, Bing

    IPC: B29C55/00 ,  B29C55/04 ,  B29K23/00

    CPC classification number: B29C55/005 ,  B29C55/04 ,  B29K2023/0683 ,  D07B1/025 ,  D07B2201/2003 ,  D07B2201/2009 ,  D07B2205/2014 ,  Y10T428/249921 ,  Y10T442/10 ,  D07B2801/10

    Abstract: The present invention pertains to a UHMWPE film having a tensile strength of at least 2.0 GPa, a tensile energy to break of at least 30 J/g, an Mw of at least 500 000 gram/mole, and a Mw/Mn ratio of at most 6.
    The film may be manufactured via a process which comprises subjecting a starting UHMWPE with a weight average molecular weight of at least 500 000 gram/mole, an elastic shear modulus determined directly after melting at 160°C of at most 0.9 MPa, and a Mw/Mn ratio of at most 6 to a compacting step and a 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 film may be used as starting material in any applications where high tensile strength and high energy to break are important. Suitable applications include ballistic applications, ropes, cables, nets, fabrics, and protective applications.

    Abstract translation: 本发明涉及一种UHMWPE薄膜，其拉伸强度为至少2.0GPa，拉伸断裂能至少为30J / g，Mw至少为500000克/摩尔，Mw / Mn比为 该膜可以通过以下方法制造，该方法包括使重均分子量为至少500000克/摩尔的起始UHMWPE，直接在160℃下熔化至0.9MPa的弹性剪切模量， 并且在这样的条件下，在聚合物的加工过程中任何时候，其温度升高到高于其熔点的值的条件下，Mw / Mn比至多为6的压实步骤和拉伸步骤。 在高拉伸强度和高能量破裂重要性的任何应用中，该膜可用作起始材料。 合适的应用包括弹道应用，绳索，电缆，网，织物和保护性应用。

    POLYETHYLENE ROPE WITH LOW STRENGTH LOSS DURING USE
    193.
    发明公开
    POLYETHYLENE ROPE WITH LOW STRENGTH LOSS DURING USE 有权
    聚乙烯麻醉剂

    公开(公告)号：EP2773811A1

    公开(公告)日：2014-09-10

    申请号：EP12780204.9

    申请日：2012-11-02

    Applicant: Teijin Aramid B.V.

    Inventor： GRABANDT, Otto ,  ELKINK, Frits ,  VAN BERKEL, Bertil

    IPC: D07B1/02

    CPC classification number: D07B1/167 ,  C08F110/02 ,  D07B1/025 ,  D07B1/162 ,  D07B2201/1044 ,  D07B2201/1096 ,  D07B2201/2003 ,  D07B2201/2012 ,  D07B2201/2089 ,  D07B2205/2014 ,  D07B2205/3017 ,  D07B2205/507 ,  D07B2501/2015 ,  D07B2501/2061 ,  Y10T428/2925 ,  Y10T428/2933 ,  D07B2801/10 ,  D07B2801/22 ,  D07B2801/18

    Abstract: A rope comprising polyethylene elongate elements oriented in the length direction of the rope wherein for at least part of the elongate elements the distance of the element to a central longitudinal rope axis varies over the length of the rope, the polyethylene elongate elements comprising tapes of ultra-high molecular weight polyethylene, the tapes having a width to thickness ratio of at least 10 and a polymer solvent content below 0.05 wt.%. The distance of at least part of the elements to the central longitudinal rope axis varies over the length of the rope between a longitudinal line which is at most 30% from the outside of the rope and a longitudinal line which is at most 30% from the central longitudinal axis of the rope. A rope with these properties, shows a high strength-strength ratio, defined as the ratio between the strength under use conditions and the fresh strength of the rope. A strength-strength ratio of at least 50%, preferably at least 70%, in particular at least 80% can be achieved.

    Abstract translation: 包括在绳索的长度方向上定向的聚乙烯细长元件的绳索，其中对于至少部分细长元件，元件到中心纵向绳轴线的距离在绳索的长度上变化。 聚乙烯细长元件包括超高分子量聚乙烯的带，该带的宽度与厚度之比至少为10，聚合物溶剂含量低于0.05wt。 ％。 至少部分元件到中央纵向绳索轴线的距离在绳索长度之间变化，该长度线距离绳索外侧至多30％的纵向线和距离绳索最多30％的纵线 绳的中心纵轴。 这种绳索显示出高强度比（使用条件下的强度与绳索的新鲜强度之比）。

    Pneumatic tyre
    195.
    发明公开
    Pneumatic tyre 有权
    充气轮胎

    公开(公告)号：EP1712376A2

    公开(公告)日：2006-10-18

    申请号：EP06015979.5

    申请日：2000-07-06

    Applicant: Sumitomo Rubber Industries Ltd

    Inventor： Miyazaki, Shinichi ,  Ohta Takeshi ,  Yamazaki, Kazumi

    IPC: B60C9/20 ,  D07B1/06 ,  B60C9/00 ,  B60C9/22

    CPC classification number: D07B7/025 ,  B60C9/0007 ,  B60C9/0057 ,  B60C9/0064 ,  B60C9/2009 ,  B60C9/22 ,  D07B1/0606 ,  D07B1/0646 ,  D07B2201/2003 ,  D07B2201/2005 ,  D07B2201/2007 ,  D07B2201/2008 ,  D07B2501/2046 ,  Y10T152/10765

    Abstract: A pneumatic tyre comprises a belt (7) disposed radially outside a carcass (6) in a tread portion (2), the belt (7) comprising two crossed plies (7A,7B) of monofilament metallic cords (10A,10B,10C) laid at angles of from 15 to 30 degrees with respect to the circumferential direction of the tyre, each monofilament cord being composed of a waved single filament, the filament having a non-circular sectional shape having an aspect ratio in a range of from 0.65 to 0.95 and a cross-sectional area in a range of 0.09 to 0.20 sq.mm.

    Abstract translation: 一种充气轮胎包括在胎面部分（2）中的胎体（6）的径向外侧设置的带（7），所述带（7）包括由单丝金属帘线（10A，10B，10C）构成的两个交叉帘布层（7A，7B） 所述单丝帘线相对于轮胎的圆周方向以15度至30度的角度铺设，每根单丝帘线由波形单丝构成，所述长丝具有非圆截面形状，所述非圆截面形状的纵横比在0.65至 0.95，横截面积在0.09至0.20平方毫米的范围内。

    OPEN STEEL CORD STRUCTURE
    199.
    发明公开
    OPEN STEEL CORD STRUCTURE 失效
    OPEN钢帘线

    公开(公告)号：EP0734468A1

    公开(公告)日：1996-10-02

    申请号：EP95903331.0

    申请日：1994-12-09

    Applicant: N.V. BEKAERT S.A.

    Inventor： VAN GIEL, Frans ,  DE VOS, Xavier

    IPC: B60C9 ,  D07B1 ,  D07B7

    CPC classification number: D07B1/0646 ,  B60C9/0007 ,  D07B1/0613 ,  D07B1/0626 ,  D07B1/0633 ,  D07B1/0653 ,  D07B7/025 ,  D07B2201/2002 ,  D07B2201/2003 ,  D07B2201/2008 ,  D07B2201/2021 ,  D07B2201/2022 ,  D07B2201/2023 ,  D07B2401/201 ,  D07B2401/208 ,  Y10S57/902

    Abstract: A steel cord (114) for the reinforcement of rubber products comprises strength elements (100, 132) and has length, a longitudinal central axis (112) and a cord pitch. Each of the elements (100) has a projection on a plane YZ perpendicular to the longitudinal central axis (112). At least one of these projections takes the form of a curve with a radius of curvature which alternates between a maximum and minimum. The curve further has a center of curvature. The radius of curvature and the center of curvature lie inside the curve so that a convex curve is obtained. The cord (114) is further characterized by one or both of the following features: (i) the distance between two minimum radii of curvature of said curve measured along the longitudinal central axis (112) is different from half the cord pitch; or (ii) if all of said elements (100) provide a convex curve, at least one of said convex curves substantially differs from another convex curve. The steel cord (114) allows full rubber penetration despite low values of cord diameter and part load elongation (PLE).

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