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    Method and apparatus for the production of high tenacity polyolefin sheet
    1.
    发明授权
    Method and apparatus for the production of high tenacity polyolefin sheet 有权
    用于生产高强度聚烯烃片材的方法和设备

    公开(公告)号：US08734700B2

    公开(公告)日：2014-05-27

    申请号：US12319321

    申请日：2009-01-06

    申请人： Kenneth C. Harding ,  Gene C. Weedon

    发明人： Kenneth C. Harding ,  Gene C. Weedon

    IPC分类号： B29C43/24

    CPC分类号： B29C43/24 ,  B29C43/22 ,  B29C55/06 ,  B29C67/04 ,  B29C71/02 ,  B29C2071/022 ,  B29K2023/0683 ,  B29K2223/0683 ,  D01D5/426 ,  D01F6/04

    摘要： A process for the production of virtually full density polyolefin suitable for further processing by drawing to form a high tenacity, highly oriented polyolefin sheet comprising: a) feeding a metered amount of polyolefin powder into the nip between two vertically stacked and heated calender rolls through application of the polyolefin powder to the apex of the topmost of the two heated calender rolls; b) rolling the powder through the nip until a coherent sheet of polyolefin sheet is produced: and c) once a coherent polyolefin sheet exits the nip adjusting the temperature in the nip to obtain specific tensile and elongation properties. Apparatus for the performance of such a process is also described.

    摘要翻译： 一种用于生产几乎全密度聚烯烃的方法，其适用于通过拉伸以形成高强度，高度取向的聚烯烃片材进一步加工，其包括：a）通过施加将计量的聚烯烃粉末进料到两个垂直堆叠和加热的压延辊之间的辊隙中 的聚烯烃粉末到两个加热的压延辊的最顶部的顶点; b）通过辊隙轧制粉末，直到产生粘合的聚烯烃片材片材，并且c）一旦相干聚烯烃片材离开辊隙，调节辊隙中的温度，以获得特定的拉伸和伸长性能。 还描述了用于执行这种处理的装置。

    Non-Fibrous high modulus ultra high molecular weight polyethylene tape for ballistic applications
    2.
    发明申请
    Non-Fibrous high modulus ultra high molecular weight polyethylene tape for ballistic applications 有权
    用于弹道应用的非纤维高模量超高分子量聚乙烯胶带

    公开(公告)号：US20110274904A1

    公开(公告)日：2011-11-10

    申请号：US13135536

    申请日：2011-07-08

    申请人： Gene C. Weedon ,  Kenneth C. Harding ,  Lisa Owen

    发明人： Gene C. Weedon ,  Kenneth C. Harding ,  Lisa Owen

    IPC分类号： B32B3/00

    CPC分类号： B29C67/04 ,  B29C43/22 ,  B29C43/228 ,  B29C55/06 ,  B29C55/065 ,  B29C55/18 ,  B29C2043/483 ,  B29K2023/0683 ,  B29K2223/0683 ,  Y10T428/24074 ,  Y10T428/24479 ,  Y10T428/2495 ,  Y10T428/2913 ,  Y10T442/2623

    摘要： A non-fibrous ultra high molecular weight polyethylene tape having a width of 1-inch or greater and a modulus of 1,400 grams per denier or greater. The non-fibrous UHMWPE tape is obtained by compression molding ultrahigh molecular weight polyethylene powder at a temperature below its melting point and then drawing and stretching the entire resultant compression molded UHMWPE sheet, with no slitting or splitting of the sheet, at a draw ratio of at least 100:1. The UHMWPE tape can be produced in weights of 6,000 to 90,000 denier or greater. The UHMWPE tape of the present invention minimizes the effect of stress concentrators that are prevalent with fibers and thereby enables the tape to be drawn at much higher draw ratios than is possible with fibrous UHMWPE. When used in ballistics panels, the high modulus high molecular weight polyethylene tape of the present invention improves ballistic performance by providing enhanced dissipation of the impact energy of a projectile.

    摘要翻译： 具有1英寸或更大的宽度和1400旦/旦或更高的模量的非纤维超高分子量聚乙烯带。 非纤维UHMWPE胶带是通过在低于其熔点的温度下压制成型超高分子量聚乙烯粉末，然后拉伸和拉伸整个所得的压缩模塑UHMWPE片材，而不是片材的分切或分裂，拉伸比为 至少100：1。 UHMWPE胶带可以以6,000至90,000旦尼尔或更大的重量生产。 本发明的UHMWPE带最小化了与纤维普遍存在的应力集中器的影响，从而使带能够以比纤维状UHMWPE可能高得多的拉伸比拉伸。 当用于弹道学面板时，本发明的高模量高分子量聚乙烯胶带通过提供抛射体的冲击能量的增强的消散来改善了弹道性能。

    Method and apparatus for the production of high tenacity polyolefin sheet
    6.
    发明授权
    Method and apparatus for the production of high tenacity polyolefin sheet 有权
    用于生产高强度聚烯烃片材的方法和设备

    公开(公告)号：US07858004B2

    公开(公告)日：2010-12-28

    申请号：US12287799

    申请日：2008-10-14

    申请人： Kenneth C. Harding ,  Gene C. Weedon

    发明人： Kenneth C. Harding ,  Gene C. Weedon

    IPC分类号： B29C55/02

    CPC分类号： B29C43/22 ,  B29C43/24 ,  B29C55/065 ,  B29C67/04 ,  B29K2023/0683 ,  B29K2223/0683

    摘要： A process for the production of virtually full density polyolefin suitable for further processing by drawing to form a high tenacity, highly oriented polyolefin sheet comprising: a) feeding a metered amount of polyolefin powder into the nip between two heated calender rolls; b) rolling the powder through the nip under these conditions until a coherent sheet of polyolefin is produced. According to a highly preferred embodiment, initially, the nip is set at a gap smaller than the size of the smallest polyolefin powder particle and at a temperature above the melting point of the powder and once a coherent sheet of polyolefin exits the nip the temperature in the nip is lowered to a temperature below the melting point of the polyolefin powder and the gap increased to a desired level above the thickness of the largest powder particle.

    摘要翻译： 一种用于生产几乎全密度聚烯烃的方法，适用于进一步加工，通过拉伸以形成高强度，高度取向的聚烯烃片材，其包括：a）将计量的聚烯烃粉末进料到两个加热的压延辊之间的辊隙中; b）在这些条件下滚动粉末通过辊隙，直到产生粘结的聚烯烃片。 根据高度优选的实施方案，最初，辊隙被设定在比最小聚烯烃粉末颗粒的尺寸小的间隙处，并且在高于粉末的熔点的温度下，并且一旦聚烯烃的粘性片离开辊隙， 将辊隙降低到低于聚烯烃粉末的熔点的温度，并且间隙增加到高于最大粉末颗粒的厚度的所需水平。

    Non-fibrous high modulus ultra high molecular weight polyethylene tape for ballistic applications
    9.
    发明授权
    Non-fibrous high modulus ultra high molecular weight polyethylene tape for ballistic applications 有权
    用于弹道应用的非纤维高模量超高分子量聚乙烯胶带

    公开(公告)号：US08211342B2

    公开(公告)日：2012-07-03

    申请号：US13135535

    申请日：2011-07-08

    申请人： Gene C. Weedon ,  Kenneth C. Harding ,  Lisa Owen

    发明人： Gene C. Weedon ,  Kenneth C. Harding ,  Lisa Owen

    IPC分类号： B29C43/26

    CPC分类号： B29C67/04 ,  B29C43/22 ,  B29C43/228 ,  B29C55/06 ,  B29C55/065 ,  B29C55/18 ,  B29C2043/483 ,  B29K2023/0683 ,  B29K2223/0683 ,  Y10T428/24074 ,  Y10T428/24479 ,  Y10T428/2495 ,  Y10T428/2913 ,  Y10T442/2623

    摘要： A process for the production of a non-fibrous ultra high molecular weight polyethylene tape having a width of 1-inch or greater and a modulus of 1,400 grams per denier or greater. The non-fibrous UHMWPE tape is obtained by compression molding ultrahigh molecular weight polyethylene powder at a temperature below its melting point and then drawing and stretching the entire resultant compression molded UHMWPE sheet, with no slitting or splitting of the sheet, at a draw ratio of at least 100:1. The UHMWPE tape can be produced in weights of 6,000 to 90,000 denier or greater. The UHMWPE tape of the present invention minimizes the effect of stress concentrators that are prevalent with fibers and thereby enables the tape to be drawn at much higher draw ratios than is possible with fibrous UHMWPE. When used in ballistics panels, the high modulus high molecular weight polyethylene tape of the present invention improves ballistic performance by providing enhanced dissipation of the impact energy of a projectile.

    摘要翻译： 一种制造宽度为1英寸或更大并且模量为1400克/旦尼尔或更高的非纤维超高分子量聚乙烯带的方法。 非纤维UHMWPE胶带是通过在低于其熔点的温度下压制成型超高分子量聚乙烯粉末，然后拉伸和拉伸整个所得的压缩模塑UHMWPE片材，而不是片材的分切或分裂，拉伸比为 至少100：1。 UHMWPE胶带可以以6,000至90,000旦尼尔或更大的重量生产。 本发明的UHMWPE带最小化了与纤维普遍存在的应力集中器的影响，从而使带能够以比纤维状UHMWPE可能高得多的拉伸比拉伸。 当用于弹道学面板时，本发明的高模量高分子量聚乙烯胶带通过提供抛射体的冲击能量的增强的消散来改善了弹道性能。