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48 条记录 (耗时 0.043 秒)

    Method to prepare high strength ultrahigh molecular weight polyolefin articles by dissolving particles and shaping the solution
    41.
    发明授权
    Method to prepare high strength ultrahigh molecular weight polyolefin articles by dissolving particles and shaping the solution 失效
    通过溶解颗粒和成型溶液制备高强度超高分子量聚烯烃制品的方法

    公开(公告)号：US5032338A

    公开(公告)日：1991-07-16

    申请号：US355234

    申请日：1989-05-22

    申请人： Gene C. Weedon ,  Thomas Y. Tam ,  Jim C. Sun

    发明人： Gene C. Weedon ,  Thomas Y. Tam ,  Jim C. Sun

    IPC分类号： B29C55/00 ,  D01D5/00 ,  D01F6/04

    CPC分类号： D01F6/04 ,  B29C55/005 ,  D01D5/00

    摘要： A method to prepare high strength high modulus polyolefin shaped articles comprising forming a heated solution of the polyolefin from particles of which about 75 to 100% by weight have a particle size of from about 100 to about 400 microns and having a weight average molecular weight of from about 300,000 to 7,000,000, then shaping the heated soltion then cooling the shaped solution. To further increase the strength of the article it can be stretched.

    摘要翻译： 一种制备高强度高模量聚烯烃成型制品的方法，包括从约75至100重量％的颗粒形成聚烯烃的加热溶液，其粒度为约100至约400微米，其重均分子量为 从约30万到700万，然后将加热的溶液成形，然后冷却成型溶液。 为了进一步提高物品的强度，可以拉伸。

    Very low creep, ultra high modulus, low shrink, high tenacity polyolefin fiber having good strength retention at high temperatures and method to produce such fiber
    46.
    发明授权
    Very low creep, ultra high modulus, low shrink, high tenacity polyolefin fiber having good strength retention at high temperatures and method to produce such fiber 失效
    非常低的蠕变，超高模量，低收缩，高强度聚烯烃纤维在高温下具有良好的强度保持性和制造这种纤维的方法

    公开(公告)号：US5578374A

    公开(公告)日：1996-11-26

    申请号：US385238

    申请日：1995-02-08

    申请人： James J. Dunbar ,  Sheldon Kavesh ,  Dusan C. Prevorsek ,  Thomas Y. Tam ,  Gene C. Weedon ,  Robert C. Wincklhofer

    发明人： James J. Dunbar ,  Sheldon Kavesh ,  Dusan C. Prevorsek ,  Thomas Y. Tam ,  Gene C. Weedon ,  Robert C. Wincklhofer

    IPC分类号： C08J5/00 ,  C08F8/00 ,  C08F10/00 ,  C08F10/02 ,  D01D5/04 ,  D01F6/04 ,  D01F6/46 ,  D02G3/00

    CPC分类号： D01F6/04 ,  D07B2205/2014 ,  D07B2401/2005 ,  Y10S428/902 ,  Y10T428/2913 ,  Y10T428/2967 ,  Y10T442/30 ,  Y10T442/60

    摘要： By poststretching, at a temperature between about 135.degree. and 160.degree. C., a polyethylene fiber, which has already been oriented by drawing at a temperature within 5.degree. C. of its melting point, an ultra high modulus, very low creep, low shrink, high tenacity polyolefin fiber having good strength retention at high temperatures is obtained. The poststretching can be in multiple stages and/or with previous annealing. The poststretching should be done at a draw rate of less than 1 second.sup.-1. Tensile modulus values over 2,000 g/d for multifilament yarn are consistently obtained for ultrahigh molecular weight-polyethylene, with tensile strength values above 30 g/d while at the same time dramatically improving creep (at 160.degree. F. (71.1.degree. C.) and 39,150 psi load) by values at least 25% lower than fiber which has not been poststretched. Shrinkage is improved to values less than 2.5% of the original length when heated from room temperature to 135.degree. C. Performance at higher temperature is improved by about 15.degree. to 25.degree. C.

    摘要翻译： 通过在约135℃至160℃的温度下拉伸，已经通过在其熔点5℃的温度下拉伸定向的聚乙烯纤维，超高模量，非常低的蠕变，低 获得在高温下具有良好强度保持性的收缩，强韧性聚烯烃纤维。 后拉伸可以在多个阶段和/或先前的退火中。 延期工作应以小于1秒-1的抽签率进行。 对于超高分子量聚乙烯，拉伸强度值高于30g / d，同时显着改善蠕变（在160°F（71.1℃））下，针对复丝纱线的拉伸模量值超过2,000g / d。 和39,150磅/平方英寸负载），比尚未拉伸的纤维低至少25％。 当从室温加热到135℃时，收缩率提高到小于原始长度的2.5％的值。在较高温度下的性能提高约15至25℃。

    Method of spinning a nylon yarn having improved retention of a soil repellent finish on the nylon yarn
    48.
    发明授权
    Method of spinning a nylon yarn having improved retention of a soil repellent finish on the nylon yarn 失效
    纺丝尼龙纱线的方法，该尼龙纱线具有改进尼龙纱线上防污性能的保持性

    公开(公告)号：US4591473A

    公开(公告)日：1986-05-27

    申请号：US591244

    申请日：1984-03-20

    申请人： Robert A. Lofquist ,  Gene C. Weedon ,  Charles J. Cole

    发明人： Robert A. Lofquist ,  Gene C. Weedon ,  Charles J. Cole

    IPC分类号： C08G69/04 ,  D06M15/507 ,  B29C59/00 ,  C08J9/36 ,  D01F6/90

    CPC分类号： C08G69/04 ,  D06M15/507

    摘要： This invention is a method to improve retention of a finish on nylon yarn, said finish containing the reaction product of epichlorohydrin with the reaction product of pyromellitic dianhydride with a long chain fluoroalcohol, comprising polymerizing said nylon in the presence of about 0.5 to 1 mole percent of a primary-tertiary diamine of the structure ##STR1## where R.sub.1 is an alpha, omega-alkylene group of 2 to 10 carbon atoms where cycloaliphatic, R.sub.2 and R.sub.3 are alkyl radicals of 1 to 4 carbon atoms, R.sub.4 is an alkylene radical of 1 to 10 carbon atoms and R.sub.5 is R.sub.4 or arylalkyl, R.sub.6 is H or alkyl of 1 to 4 carbons, so that said nylon polymer is melt stable. Also, for batch processing, polyethyleneimines of 300 to 1200 molecular weight, methylaminobispropylamine, N-(2-aminoethyl)-1,3-propanediamine, and 3,3'-iminobispropylamine are useful.

    摘要翻译： 本发明是一种改善尼龙纱线上饰面保留性的​​方法，所述表面处理剂含有表氯醇与1,2,4,5-苯四酸二酐与长链氟代醇的反应产物的反应产物，包括在约0.5-1摩尔％ 其中R 1是2至10个碳原子的α，ω-亚烷基，其中脂环族基，R 2和R 3是具有1至4个碳原子的烷基，R 4是 1至10个碳原子的亚烷基，R 5是R 4或芳基烷基，R 6是H或1至4个碳的烷基，使得所述尼龙聚合物是熔体稳定的。 此外，对于分批处理，分子量为300〜1200的聚乙烯亚胺，甲基氨基丙基胺，N-（2-氨基乙基）-1,3-丙二胺和3,3'-亚氨基双丙基胺是有用的。