POLYETHYLENE FILM WITH HIGH TENSILE STRENGTH AND HIGH TENSILE ENERGY TO BREAK
    1.
    发明申请
    POLYETHYLENE FILM WITH HIGH TENSILE STRENGTH AND HIGH TENSILE ENERGY TO BREAK 有权
    聚乙烯薄膜,具有高拉伸强度和高拉伸强度

    公开(公告)号:US20100144224A1

    公开(公告)日:2010-06-10

    申请号:US12452526

    申请日:2008-07-02

    IPC分类号: B32B5/02 B29C55/02 C08F110/02

    摘要: 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.

    摘要翻译: 本发明涉及一种抗拉强度为至少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,在160℃下熔融后直接测定的弹性剪切模量为至多0.9MPa ,并且在这样的条件下,在聚合物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。 在高抗拉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 film with high tensile strength and high tensile energy to break
    2.
    发明授权
    Polyethylene film with high tensile strength and high tensile energy to break 有权
    聚乙烯薄膜具有高拉伸强度和高拉伸能量断裂

    公开(公告)号:US09393734B2

    公开(公告)日:2016-07-19

    申请号:US12452526

    申请日:2008-07-02

    摘要: 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.

    摘要翻译: 本发明涉及一种抗拉强度为至少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,在160℃下熔融后直接测定的弹性剪切模量为至多0.9MPa ,并且在这样的条件下,在聚合物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。 在高抗拉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。

    Process for combined rolling and stretching of tapes
    5.
    发明授权
    Process for combined rolling and stretching of tapes 有权
    胶带的组合滚压和拉伸工艺

    公开(公告)号:US09505183B2

    公开(公告)日:2016-11-29

    申请号:US14116507

    申请日:2012-05-08

    摘要: A process for rolling and stretching of a sheet into a tape is provided. A sheet may be rolled into a rolled sheet in the nip between two rolls of the calender and the rolled sheet is stretched immediately thereafter into a tape on the surface of one of the two calender rolls. The speed of the rolled sheet on the surface of the calender roll may be higher than the speed of the calender roll. The position of the start of the neck-down of the rolled sheet and the rate of neck-down can be easily controlled by the proposed process.

    摘要翻译: 提供了将片材拉伸和拉伸成带材的方法。 在压延机的两个辊之间的辊隙中,可以将片材卷成轧制板,然后将轧制的片材立即拉伸到两个压延辊之一的表面上的带中。 压延辊的表面上的轧制速度可以高于压延辊的速度。 通过提出的方法可以容易地控制轧制板的颈缩开始的位置和颈缩的速度。

    PROCESS FOR COMBINED ROLLING AND STRETCHING OF TAPES
    6.
    发明申请
    PROCESS FOR COMBINED ROLLING AND STRETCHING OF TAPES 有权
    组合卷绕和拉伸的方法

    公开(公告)号:US20140070449A1

    公开(公告)日:2014-03-13

    申请号:US14116507

    申请日:2012-05-08

    IPC分类号: B29D7/01

    摘要: A process for rolling and stretching of a sheet into a tape is provided. A sheet may be rolled into a rolled sheet in the nip between two rolls of the calender and the rolled sheet is stretched immediately thereafter into a tape on the surface of one of the two calender rolls. The speed of the rolled sheet on the surface of the calender roll may be higher than the speed of the calender roll. The position of the start of the neck-down of the rolled sheet and the rate of neck-down can be easily controlled by the proposed process.

    摘要翻译: 提供了将片材拉伸和拉伸成带材的方法。 在压延机的两个辊之间的辊隙中,可以将片材卷成轧制板,然后将轧制的片材立即拉伸到两个压延辊之一的表面上的带中。 压延辊的表面上的轧制速度可以高于压延辊的速度。 通过提出的方法可以容易地控制轧制板的颈缩开始的位置和颈缩的速度。