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    Method of making elastic articles having improved heat-resistance
    43.
    发明授权
    Method of making elastic articles having improved heat-resistance 失效
    制造具有改善的耐热性的弹性制品的方法

    公开(公告)号：US06437014B1

    公开(公告)日：2002-08-20

    申请号：US09627534

    申请日：2000-07-28

    申请人： Thoi H. Ho ,  Selim Bensason ,  Rajen M. Patel ,  Kimberly S. Houchens ,  Rona L. Reid ,  Pak-Wing S. Chum ,  Leonie K. Walsh

    发明人： Thoi H. Ho ,  Selim Bensason ,  Rajen M. Patel ,  Kimberly S. Houchens ,  Rona L. Reid ,  Pak-Wing S. Chum ,  Leonie K. Walsh

    IPC分类号： C08K513

    CPC分类号： D04B1/18 ,  C08L51/06 ,  C08L53/025 ,  C08L2666/24 ,  C08L2666/04 ,  C08L2666/02

    摘要： The present invention relates to a method for making a heat-resistant elastic article and a heat-resistant elastic article. The invention especially relates to a method of making elastic fibers and polymeric elastic fibers wherein the elastic fibers are capable of withstanding dyeing and heat-setting processes that typically are conducted at elevated temperatures (such as 110-230° C. and especially at greater than or equal to 130° C. for minutes). The inventive method comprises radiation crosslinking an article (or plurality of articles) under an inert or oxygen limited atmosphere (for example, in N2, argon, helium, carbon dioxide, xenon and/or a vacuum) wherein the article (or articles) comprises at least one amine stabilizer and preferably another optional stabilizer additive. More preferably, the radiation crosslinking is performed at a low temperature (−50 to 40° C.). The elastic article (or articles) comprises a homogeneously branched ethylene interpolymer (preferably a substantially linear ethylene interpolymer), a substantially hydrogenated block polymer, or a combination of the two. The heat-resistant elastic articles (especially fibers) are useful in various durable or repeated-use fabric applications such as, but not limited to, clothing, under-garments, and sports apparel. The heat-resistant elastic fibers can be conveniently formed into fabrics using well-known techniques such as, for example, by using co-knitting techniques with cotton, nylon, and/or polyester fibers.

    摘要翻译： 本发明涉及一种制造耐热弹性制品和耐热弹性制品的方法。 本发明特别涉及一种制造弹性纤维和聚合物弹性纤维的方法，其中弹性纤维能够耐受染色和热定型过程，其通常在升高的温度（例如110-230℃，特别是大于 或等于130℃，分钟）。 本发明的方法包括在惰性或氧气限制的气氛（例如，在N 2，氩气，氦气，二氧化碳，氙气和/或真空中）中辐射交联物品（或多个制品），其中制品（或制品）包含 至少一种胺稳定剂，优选另一种任选的稳定剂添加剂。 更优选地，辐射交联在低温（-50至40℃）下进行。 弹性制品（或制品）包含均匀支化的乙烯互聚物（优选基本上为线性的乙烯互聚物），基本上氢化的嵌段聚合物或两者的组合。 耐热弹性制品（特别是纤维）可用于各种耐用或重复使用的织物应用，例如但不限于衣服，衣服和运动服装。 耐热弹性纤维可以使用众所周知的技术方便地形成织物，例如通过使用与棉，尼龙和/或聚酯纤维的共同编织技术。

    Performance super high flow ethylene polymer compositions
    46.
    发明授权
    Performance super high flow ethylene polymer compositions 失效
    性能超高流量乙烯聚合物组合物

    公开(公告)号：US5589128A

    公开(公告)日：1996-12-31

    申请号：US289978

    申请日：1994-08-12

    申请人： Shih-Yaw Lai ,  Lonnie G. Hazlitt ,  Pak-Wing S. Chum

    发明人： Shih-Yaw Lai ,  Lonnie G. Hazlitt ,  Pak-Wing S. Chum

    IPC分类号： C08L23/06 ,  C08L23/08 ,  B29B7/00

    CPC分类号： C08L23/06 ,  C08L23/0815 ,  C08L2207/20 ,  Y10T428/1352 ,  Y10T428/139

    摘要： Super high flow ethylene polymer compositions comprising at least one linear ethylene polymer are disclosed which have improved processability for use in making thermally formed articles (e.g., thin-walled lids, cups and containers). The compositions have a processing index from about 0.005 KPoise to about 1 KPoise and are particularly useful in thermal forming processes having shear rates of at least 2,000 sec.sup.-1 (e.g., injection molding processes). The compositions can be used to make thin-walled lids and cups and have good environmental stress crack resistance and Gullwing Tear properties.

    摘要翻译： 公开了包含至少一种直链乙烯聚合物的超高流动乙烯聚合物组合物，其具有改进的加工性，用于制造热成型制品（例如，薄壁盖，杯和容器）。 组合物具有约0.005KPise至约1KPoise的加工指数，并且特别适用于剪切速率为至少2,000秒-1（例如注射成型工艺）的热成型工艺。 组合物可用于制备薄壁盖和杯，并具有良好的耐环境应力开裂性和鸥鸥撕裂性能。

    Silica supported transition metal catalyst
    48.
    发明授权
    Silica supported transition metal catalyst 失效
    二氧化硅负载过渡金属催化剂

    公开(公告)号：US5487938A

    公开(公告)日：1996-01-30

    申请号：US336947

    申请日：1994-11-10

    申请人： Lee Spencer ,  Brian W. S. Kolthammer ,  Miriam P. Ripplinger ,  Jeffrey J. Wooster ,  Pak-Wing S. Chum ,  Jacquelyn A. deGroot

    发明人： Lee Spencer ,  Brian W. S. Kolthammer ,  Miriam P. Ripplinger ,  Jeffrey J. Wooster ,  Pak-Wing S. Chum ,  Jacquelyn A. deGroot

    IPC分类号： C08J5/18 ,  B29C55/02 ,  B29K23/00 ,  B29L7/00 ,  C08F4/646 ,  C08F4/658 ,  C08F4/685 ,  C08F10/00 ,  C08F210/00 ,  C08F210/02 ,  C08F210/16 ,  B32B7/12

    CPC分类号： C08F10/00 ,  Y10S428/91 ,  Y10T428/26 ,  Y10T428/31855

    摘要： A transition metal containing catalyst useful for the polymerization of .alpha.-olefins is prepared by (A) forming in an inert atmosphere which excludes oxygen and moisture a slurry of (1) a porous inorganic oxide support material selected from the group consisting of silica, alumina, or a combination of silica and alumina, said support material containing not greater than about 5 millimoles of hydroxyl groups per gram of support material and a particle size not greater than about 10 microns and a surface area of from about 50 to about 800 m.sup.2 /g in an inert organic liquid medium; (B) mixing said slurry with (2) an alkoxide and stirring the resultant mixture at a temperature of from about -20.degree. C. to about 120.degree. C. for a time sufficient to saturate the surface of the support material; (C) mixing the product form (B) with (3) a titanium compound or a combination of a titanium compound and (4) a vanadium compound and stirring the resultant mixture at a temperature of from about -20.degree. C. to about 120.degree. C. for a time sufficient to allow complete reaction of the titanium compound and the vanadium compound with the organomagnesium moieties remaining on the solid support; (D) mixing the product from (C) with an inert organic solution of (5) a Group IIIA metal alkyl halide at a temperature of from about -20.degree. C. to about 120.degree. C. for a time sufficient to complete the reduction of the titanium and vanadium, if present, compounds to their final oxidation state. Ethylene/alpha-olefin copolymers which have greater than 17 percent high density fraction and a M.sub.w /M.sub.n ratio of less than about 3.6 are shown to be useful in making cast films which have good stretchability and good puncture resistance. Copolymers of the present invention having the specified properties are especially useful in making the films.

    摘要翻译： 用于α-烯烃聚合的含过渡金属的催化剂通过以下步骤制备：（A）在惰性气氛中形成不含氧和水分的淤浆（1）多孔无机氧化物载体材料，其选自二氧化硅，氧化铝 ，或二氧化硅和氧化铝的组合，所述载体材料每克载体材料含有不大于约5毫摩尔羟基，粒度不大于约10微米，表面积为约50至约800平方米/ g在惰性有机液体介质中; （B）将所述浆料与（2）醇盐混合并在约-20℃至约120℃的温度下搅拌所得混合物足以使载体材料表面饱和的时间; （C）将产品形式（B）与（3）钛化合物或钛化合物和（4）钒化合物的组合混合并在约-20℃至约120℃的温度下搅拌所得混合物 在足以允许钛化合物和钒化合物与残留在固体载体上的有机镁部分完全反应的时间; （D）将来自（C）的产物与（5）IIIA族金属烷基卤的惰性有机溶液在约-20℃至约120℃的温度下混合足以完成还原的时间 的钛和钒（如果存在）化合物达到其最终氧化态。 显示出具有大于17％的高密度分数和小于约3.6的Mw / Mn比的乙烯/α-烯烃共聚物可用于制备具有良好的拉伸性和良好的耐穿刺性的流延薄膜。 具有特定性质的本发明的共聚物在制备膜中特别有用。

    Polyethylene films exhibiting low blocking force
    49.
    发明授权
    Polyethylene films exhibiting low blocking force 失效
    聚乙烯薄膜显示出低的阻塞力

    公开(公告)号：US5370940A

    公开(公告)日：1994-12-06

    申请号：US092346

    申请日：1993-07-15

    申请人： Lonnie G. Hazlitt ,  Pak-Wing S. Chum ,  Seema V. Karande ,  John E. Lastovica, III ,  Ian M. Munro

    发明人： Lonnie G. Hazlitt ,  Pak-Wing S. Chum ,  Seema V. Karande ,  John E. Lastovica, III ,  Ian M. Munro

    IPC分类号： B65D30/02 ,  B32B27/32 ,  B65D65/02 ,  C08F8/00 ,  C08F10/02 ,  C08F297/08 ,  C08J5/18 ,  C08L23/00 ,  C08L23/04 ,  C08L23/08 ,  C08L23/18

    CPC分类号： C08J5/18 ,  C08F297/08 ,  C08L23/0815 ,  C08J2323/08 ,  C08L2205/02 ,  Y10T428/1334 ,  Y10T428/1345 ,  Y10T428/31913

    摘要： Film having good blocking properties and low coefficient of friction is prepared without the presence of antiblock additives from certain thermoplastic ethylene interpolymer products. The thermoplastic ethylene interpolymer products have a density of about 0,935 g/ml or less, a melt flow ratio, I.sub.10/ I.sub.2, of at least about 8, and at least about 0.5 percent by weight of the interpolymer product has a weight average molecular weight of at least about 1,000,000 grams/mole. The interpolymer products are a blend or composite of ethylene polymers or copolymers and comprise at least a first interpolymer of ethylene with at least one alpha-olefin monomer. Preferably, the interpolymer products have a melt index, I.sub.2, of from about 0.1 to about 4 grams/10 minutes. The interpolymer products can be made using discrete polymer blends, or preferably, in a multiple reactor sequence. Blown film made from the interpolymer products is especially useful in grocery sack applications.

    摘要翻译： 制备具有良好阻隔性能和低摩擦系数的膜，而不存在来自某些热塑性乙烯互聚物产物的防粘剂添加剂。 热塑性乙烯互聚物产物的密度为约935g / ml或更低，熔体流动比I10 / I2为至少约8重量％，至少约0.5重量％的互聚物产物具有重均分子量 至少约1,000,000克/摩尔。 互聚物产物是乙烯聚合物或共聚物的共混物或复合物，并且包含至少一种乙烯与至少一种α-烯烃单体的第一互聚物。 优选地，互聚物产物的熔体指数I 2为约0.1至约4克/ 10分钟。 互聚物产物可以使用离散聚合物共混物制备，或者优选在多反应器序列中制备。 由互聚物产品制成的吹膜在杂货袋应用中特别有用。

    Polyethylene films exhibiting low blocking force
    50.
    发明授权
    Polyethylene films exhibiting low blocking force 失效
    聚乙烯薄膜显示出低的阻塞力

    公开(公告)号：US5250612A

    公开(公告)日：1993-10-05

    申请号：US773375

    申请日：1991-10-07

    申请人： Lonnie G. Hazlitt ,  Pak-Wing S. Chum ,  Seema V. Karande ,  John E. Lastovica, III ,  Ian M. Munro

    发明人： Lonnie G. Hazlitt ,  Pak-Wing S. Chum ,  Seema V. Karande ,  John E. Lastovica, III ,  Ian M. Munro

    IPC分类号： B65D30/02 ,  B32B27/32 ,  B65D65/02 ,  C08F8/00 ,  C08F10/02 ,  C08F297/08 ,  C08J5/18 ,  C08L23/00 ,  C08L23/04 ,  C08L23/08 ,  C08L23/20

    CPC分类号： C08J5/18 ,  C08F297/08 ,  C08L23/0815 ,  C08J2323/08 ,  C08L2205/02 ,  Y10T428/1334 ,  Y10T428/1345 ,  Y10T428/31913

    摘要： Film having good blocking properties and low coefficient of friction is prepared without the presence of antiblock additives from certain thermoplastic ethylene interpolymer products. The thermoplastic ethylene interpolymer products have a density of about 0.935 g/ml or less, a melt flow ratio. I.sub.10 I.sub.2, of at least about 8, and at least about 0.5 percent by weight of the interpolymer product has a weight average molecular weight of at least about 1,000,000 grams/mole. The interpolymer products are a blend or composite of ethylene polymers or copolymers and comprise at least a first interpolymer of ethylene with at least one alpha-olefin monomer. Preferably, the interpolymer products have a melt index, I.sub.2, of from about 0.1 to about 4 grams/10 minutes. The interpolymer products can be made using discrete polymer blends, or preferably, in a multiple reactor sequence. Blown film made from the interpolymer products is especially useful in grocery sack applications.

    摘要翻译： 制备具有良好阻隔性能和低摩擦系数的膜，而不存在来自某些热塑性乙烯互聚物产物的防粘剂添加剂。 热塑性乙烯互聚物产物的密度为约0.935g / ml或更小，熔体流动比。 至少约8重量％，至少约0.5重量％的互聚物产物的重均分子量至少约为1,000,000克/摩尔。 互聚物产物是乙烯聚合物或共聚物的共混物或复合物，并且包含至少一种乙烯与至少一种α-烯烃单体的第一互聚物。 优选地，互聚物产物的熔体指数I 2为约0.1至约4克/ 10分钟。 互聚物产物可以使用离散聚合物共混物制备，或者优选在多反应器序列中制备。 由互聚物产品制成的吹膜在杂货袋应用中特别有用。