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    Method and apparatus for the production of high tenacity polyolefin sheet
    5.
    发明授权
    Method and apparatus for the production of high tenacity polyolefin sheet 有权

    公开(公告)号：US08177540B2

    公开(公告)日：2012-05-15

    申请号：US12928618

    申请日：2010-12-15

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

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

    IPC分类号： B29C43/24 ,  B29C43/34

    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.

    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：US07854870B2

    公开(公告)日：2010-12-21

    申请号：US12080197

    申请日：2008-04-01

    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： B29C67/04 ,  B29C43/22 ,  B29C71/02 ,  B29C2071/022 ,  B29K2023/0683

    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 calendar rolls initially 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; b) rolling the powder through the nip under these conditions until a coherent sheet of polyolefin is produced: and c) once a coherent sheet of polyolefin exits the nip lowering the temperature in the nip to a temperature below the melting point of the polyolefin powder and increasing the gap to a desired level above the thickness of the largest powder particle. 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，高取向聚烯烃片材的进一步加工，其包括：a）将计量的聚烯烃粉末进料到初始设置在间隙处的两个加热的日历辊之间的辊隙中 小于最小聚烯烃粉末颗粒的尺寸，并且在高于粉末熔点的温度下; 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材，并且c）一旦聚烯烃的相干片材离开辊隙将辊隙中的温度降低到低于聚烯烃粉末熔点的温度， 将间隙增加到高于最大粉末颗粒厚度的所需水平。 还描述了用于执行这种处理的装置。

    Method and apparatus for the production of high tenacity polyolefin sheet
    7.
    发明申请
    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：US20100295203A1

    公开(公告)日：2010-11-25

    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。

    Method and apparatus for the production of high tenacity polyolefin sheet
    9.
    发明申请
    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：US20090243138A1

    公开(公告)日：2009-10-01

    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： B29C67/00

    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。

    Method and apparatus for the production of high tenacity polyolefin sheet
    10.
    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。