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    Crosslinking of polymers and foams thereof
    4.
    发明授权
    Crosslinking of polymers and foams thereof 失效
    聚合物和泡沫的交联

    公开(公告)号：US06325956B2

    公开(公告)日：2001-12-04

    申请号：US09140004

    申请日：1998-08-26

    申请人： Bharat I. Chaudhary ,  Thoi H. Ho ,  Seema V. Karande ,  Che-I. Kao ,  Robert H. Terbrueggen ,  David A. Babb ,  Clark H. Cummins ,  Michael J. Mullins ,  H. Craig Silvis

    发明人： Bharat I. Chaudhary ,  Thoi H. Ho ,  Seema V. Karande ,  Che-I. Kao ,  Robert H. Terbrueggen ,  David A. Babb ,  Clark H. Cummins ,  Michael J. Mullins ,  H. Craig Silvis

    IPC分类号： B29C4402

    摘要： The invention includes a process comprising (a) forming a polymeric admixture including at least one polyolefin which has been prepared using a single site catalyst and at least a crosslinking amount of at least one poly(sulfonyl azide) crosslinking agent; (b) shaping the resulting admixture; and (c) heating the resulting shaped admixture to a temperature at least the decomposition temperature of the crosslinking agent. The steps take place in any sequence and optionally include substeps. The single site catalyst is preferably a constrained geometry or metallocene catalyst, but optionally another transition metal catalyst which is not a traditional Ziegler Natta Ti/MgCl2 catalyst such as a vanadium catalyst. The invention further includes all compositions obtainable by the process of the invention as well as all articles formed from these compositions. The articles are preferably thermoformed, compression molded, injection molded, extruded, cast, blow molded, blown, profile extruded, spun, foamed or molded of any composition of the invention. The invention includes a use of any composition of the invention in any process of thermoforming, injection molding, extrusion, casting, blow molding, spinning, blowing, profile extrusion, foaming, compression molding or a combination thereof.

    摘要翻译： 本发明包括一种方法，其包括（a）形成包含至少一种聚烯烃的聚合物混合物，所述聚合物混合物已经使用单中心催化剂和至少交联量的至少一种聚（磺酰基叠氮化物）交联剂制备; （b）成型所得混合物; 和（c）将所得成形的混合物加热至至少交联剂的分解温度的温度。 步骤以任何顺序进行，并且可选地包括子步骤。 单中心催化剂优选为约束几何形状或茂金属催化剂，但可选地为不是传统的齐格勒 - 纳塔Ti / MgCl 2催化剂如钒催化剂的另一种过渡金属催化剂。 本发明还包括通过本发明的方法获得的所有组合物以及由这些组合物形成的所有制品。 制品优选是由本发明的任何组合物进行热成型，压塑，注射成型，挤出，铸造，吹塑，吹塑，型材挤出，纺丝，发泡或模制的。 本发明包括在热成型，注射成型，挤出，铸造，吹塑，纺丝，吹塑，型材挤出，发泡，压缩成型或其组合的任何方法中使用本发明的任何组合物。

    HIGH-DENSITY POLYETHYLENE COMPOSITIONS, METHOD OF PRODUCING THE SAME, ARTICLES MADE THEREFROM, AND METHOD OF MAKING SUCH ARTICLES
    5.
    发明申请
    HIGH-DENSITY POLYETHYLENE COMPOSITIONS, METHOD OF PRODUCING THE SAME, ARTICLES MADE THEREFROM, AND METHOD OF MAKING SUCH ARTICLES 审中-公开
    高密度聚乙烯组合物，其制备方法，制备方法及制备这些制品的方法

    公开(公告)号：US20100000903A1

    公开(公告)日：2010-01-07

    申请号：US12375847

    申请日：2007-07-25

    申请人： Nancy Costolnick ,  Thoi H. Ho ,  Kevin Nylin ,  Dale A. Wright

    发明人： Nancy Costolnick ,  Thoi H. Ho ,  Kevin Nylin ,  Dale A. Wright

    IPC分类号： C08K5/101 ,  B29C31/10 ,  B65D1/00

    CPC分类号： C08L23/06 ,  C08K5/1345 ,  C08L71/00 ,  C08L91/06 ,  C08L2666/14

    摘要： The instant invention is a high-density polyethylene composition, method of producing the same, articles made therefrom, and method of making such articles. The high-density polyethylene composition according to instant invention includes a first component, a second component, and a third component. The first component is a high-density polyethylene polymer having a density in the range of 0.940 to 0.980 g/cm3. The second component is polyethylene glycol, and the third component is octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate. The high-density polyethylene composition of the instant invention has a Yellowness Index of less than about −2.5 at 0 hour of accelerated aging at 100° C. according to ASTM D-6290. The process for producing the high-density polyethylene composition according to instant invention includes the following steps: (1) providing a first component, wherein the first component is a high-density polyethylene polymer having a density in the range of 0.940 to 0.980 g/cm3; (2) providing a second component, wherein the second component is polyethylene glycol; (3) providing a third component, wherein the third component is octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate; (4) blending the second and third components into the first component thereby forming a blend; (5) pelletizing the blend; and (6) thereby forming pellets of the high-density polyethylene composition having a Yellowness Index of less than about −2.5 at 0 hour of accelerated aging at 100° C. according to ASTM D-6290. Articles according to instant invention comprises the above-described inventive high-density polyethylene composition.

    摘要翻译： 本发明是高密度聚乙烯组合物，其制造方法，由其制成的制品及其制造方法。 根据本发明的高密度聚乙烯组合物包括第一组分，第二组分和第三组分。 第一组分是密度在0.940至0.980g / cm3范围内的高密度聚乙烯聚合物。 第二组分是聚乙二醇，第三组分是3-（3,5-二叔丁基-4-羟基苯基）丙酸十八烷基酯。 根据ASTM D-6290，本发明的高密度聚乙烯组合物在100℃加速老化的0小时时的黄度指数小于约-2.5。 根据本发明的高密度聚乙烯组合物的制造方法包括以下步骤：（1）提供第一组分，其中第一组分是密度在0.940至0.980g / cm 3的密度的高密度聚乙烯聚合物， cm3; （2）提供第二组分，其中第二组分是聚乙二醇; （3）提供第三组分，其中第三组分是3-（3,5-二叔丁基-4-羟基苯基）丙酸十八烷基酯; （4）将第二和第三组分混合到第一组分中，从而形成共混物; （5）将混合物造粒; 和（6），根据ASTM D-6290，在加速老化的0小时，在100℃下形成黄度指数小于约-2.5的高密度聚乙烯组合物的颗粒。 根据本发明的制品包括上述本发明的高密度聚乙烯组合物。

    Crosslinked elastomers processes for their manufacture and articles made from these elastomers
    9.
    发明授权
    Crosslinked elastomers processes for their manufacture and articles made from these elastomers 有权
    用于其制造的交联弹性体方法和由这些弹性体制成的制品

    公开(公告)号：US06384139B1

    公开(公告)日：2002-05-07

    申请号：US09229109

    申请日：1999-01-12

    申请人： Thoi H. Ho ,  Morgan M. Hughes ,  Robert T. Johnston ,  Jimmy D. Allen

    发明人： Thoi H. Ho ,  Morgan M. Hughes ,  Robert T. Johnston ,  Jimmy D. Allen

    IPC分类号： C08F830

    CPC分类号： C08L51/06 ,  C08F2810/20 ,  C08L23/04 ,  C08L23/0815 ,  C08L23/10 ,  C08L2312/00 ,  C08L2666/24 ,  C08L2666/02

    摘要： At least partially vulcanized elastomers are described, these elastomers obtained by at least partially crosslinking (1) an elastomeric polymer containing reactive substituents with (2) a crosslinking agent (a) containing two or more reactive substituents differing from those contained in the elastomeric polymer, and (b) having a number average molecular weight less than about 2000, each of the reactive substituents selected (i) such that those of the elastomer will react with those of the crosslinking agent to at least partially crosslink the elastomer, and (ii) from the group consisting of carboxylic acid, carboxylic anhydride, carboxylic acid salt, carbonyl halide, hydroxy, epoxy, and isocyanate.

    摘要翻译： 描述了至少部分硫化的弹性体，这些弹性体通过至少部分地交联（1）含有反应性取代基的弹性体聚合物与（2）含有两个或更多个与弹性体聚合物中包含的那些不同的反应性取代基的交联剂（a） 和（b）具有小于约2000的数均分子量，每个反应性取代基选自（i）使得弹性体的那些与交联剂的那些反应以使弹性体至少部分交联，和（ii） 由羧酸，羧酸酐，羧酸盐，羰基卤，羟基，环氧基和异氰酸酯组成的组。