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    High tenacity polyethylene fibers and process for producing same
    1.
    发明授权
    High tenacity polyethylene fibers and process for producing same 失效
    高韧性聚乙烯纤维及其生产方法

    公开(公告)号：US4276348A

    公开(公告)日：1981-06-30

    申请号：US109954

    申请日：1980-01-07

    申请人： Wen-li Wu ,  William B. Black

    发明人： Wen-li Wu ,  William B. Black

    IPC分类号： D01F6/04 ,  D02G3/00

    CPC分类号： D01F6/04 ,  Y10T428/2913 ,  Y10T428/2929

    摘要： Polyethylene yarns having tenacities of at least 12 grams per denier are produced at commercially feasible spinning speeds by a process in which a high density polyethylene having a M.sub.n of at least 20,000 and a M.sub.w of less than 125,000 is extruded through a high temperature spinneret (220.degree.-335.degree. C.) to form yarns which are hot-drawn at a temperature between about 115.degree. and 132.degree. C. The yarns produced by this process are particularly useful as industrial cordage.

    摘要翻译： 在商业上可行的纺丝速度下，通过高温喷丝头（220）挤出具有至少20,000的Mn和Mw小于125,000的Mn的高密度聚乙烯的方法来生产具有至少12克/旦尼尔的聚乙烯纱线的聚乙烯纱线 DEG -353℃），以形成在约115℃至132℃的温度下热拉伸的纱线。通过该方法生产的纱线特别适用于工业电缆。

    Thermal technique for determining interface and/or interply strength in composites
    2.
    发明授权
    Thermal technique for determining interface and/or interply strength in composites 失效
    用于确定复合材料界面和/或互补强度的热技术

    公开(公告)号：US4972720A

    公开(公告)日：1990-11-27

    申请号：US409854

    申请日：1989-09-20

    申请人： Wen-li Wu

    发明人： Wen-li Wu

    IPC分类号： G01N29/14 ,  G01N29/24

    CPC分类号： G01N29/2418 ,  G01N29/14

    摘要： A method and apparatus for characterizing bonding properties in compositions which utilizes thermal energy to cause controlled debonding of interface and/or interply bonds. Debonding events resulting from the controlled debonding are detected and utilized to characterize the interface and/or interply properties of the composition.

    摘要翻译： 用于表征组合物中的结合性质的方法和装置，其利用热能引起界面和/或连接键的受控剥离。 检测并利用由受控剥离引起的剥离事件来表征组合物的界面和/或间接性质。

    Twist efficiency of oxadiazole/hydrazide yarn
    3.
    发明授权
    Twist efficiency of oxadiazole/hydrazide yarn 失效
    恶二唑/酰肼纱的捻效率

    公开(公告)号：US4132757A

    公开(公告)日：1979-01-02

    申请号：US864190

    申请日：1977-12-27

    申请人： Andrew I. Smith ,  Wen-li Wu

    发明人： Andrew I. Smith ,  Wen-li Wu

    IPC分类号： D01F6/78 ,  D06M11/20 ,  D01D5/06

    CPC分类号： D06M11/20 ,  D01F6/78 ,  Y10T428/2969

    摘要： Yarns of phenylene oxadiazole/N-alkylhydrazide copolymers are made by a wet spinning process involving the steps of extruding, coagulating, washing, drying, hot-drawing and collecting. These yarns when formed into cord lose considerable tenacity, that is, cords plied from these yarns have considerably less tenacity than the individual yarns making up the cords. It has been found that this loss in tenacity in forming cords can be significantly reduced by applying a certain zirconium-containing finish to the yarn during its preparation. The finish is applied after the yarn is washed and while it is still wet.

    摘要翻译： 亚苯基恶二唑/ N-烷基酰肼共聚物的纱线通过湿法纺丝法制备，包括挤出，凝固，洗涤，干燥，热拉伸和收集的步骤。 当这些纱线形成绳索时，其损失相当大的韧性，即，从这些纱线层叠的帘线比构成帘线的单根纱线的韧度明显更小。 已经发现，通过在其制备过程中对纱线施加一定的含锆精整度，可以显着降低成形帘线的强度损失。 在纱线洗涤后，并且仍然是湿润的情况下施加整理。

    Spin-texture process
    5.
    发明授权
    Spin-texture process 失效
    旋转纹理过程

    公开(公告)号：US4244907A

    公开(公告)日：1981-01-13

    申请号：US93082

    申请日：1979-11-08

    申请人： Wen-li Wu

    发明人： Wen-li Wu

    IPC分类号： D01D5/23 ,  D01D5/22

    CPC分类号： D01D5/23

    摘要： A spin-texture process for producing crimped synthetic filaments is described in which freshly extruded filaments are passed over a 20.degree. C.-180.degree. C. roll before they are completely solidified and fully drawn as they leave the roll. In the case of polyamide filaments, spontaneous crimp as well as latent crimp is observed.

    摘要翻译： 描述了用于生产卷曲合成长丝的旋转织构方法，其中新鲜挤出的长丝在它们完全固化并在它们离开辊时完全拉伸之后通过20℃-180℃的辊。 在聚酰胺长丝的情况下，观察到自发卷曲以及潜在卷曲。