利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

27 条记录 (耗时 0.027 秒)

    PROCESSES AND COMPOSTIONS FOR INJECTION BLOW MOLDING
    2.
    发明申请
    PROCESSES AND COMPOSTIONS FOR INJECTION BLOW MOLDING 有权
    注塑吹塑成型工艺及组合

    公开(公告)号：US20110136983A1

    公开(公告)日：2011-06-09

    申请号：US13056710

    申请日：2009-08-28

    申请人： Mridula Kapur ,  Alan T. Radwanski

    发明人： Mridula Kapur ,  Alan T. Radwanski

    IPC分类号： C08L23/04 ,  C08F10/02 ,  B29C49/06

    CPC分类号： C08K5/0016 ,  B29C37/0067 ,  B29C49/0005 ,  B29C49/06 ,  B29L2031/712 ,  C08K5/098 ,  C08K5/20

    摘要： The invention provides a process for injection blow molding an article, said process comprising injecting into a mold cavity a composition, comprising at least one ethylene-based polymer and less than, or equal to, 1000 ppm of a mold release agent, based on the total weight of the composition. The invention also provides a composition comprising a blend, wherein the blend comprises at least one high molecular weight (HMW) ethylene-based polymer, and at least one low molecular weight (LMW) ethylene-based polymer, and wherein the blend has an unsaturation level, as determined by IR, and expressed as vinyls per 1000 carbon atoms, less than, or equal to, 0.5 vinyls per 1000 carbon atoms, and wherein the high molecular weight (HMW) ethylene-based polymer has a density from 0.925 to 0.950 g/cc.

    摘要翻译： 本发明提供了一种用于注射吹塑成型物品的方法，所述方法包括将包含至少一种基于乙烯的聚合物和小于或等于1000ppm的脱模剂的组合物注入模腔中，基于 组合物的总重量。 本发明还提供包含共混物的组合物，其中所述共混物包含至少一种高分子量（HMW）基于乙烯的聚合物和至少一种低分子量（LMW）乙烯基聚合物，并且其中所述共混物具有不饱和键 水平，由IR确定，并且每1000个碳原子表示为乙烯基，每1000个碳原子小于或等于0.5个乙烯基，其中高分子量（HMW）乙烯类聚合物的密度为0.925-0.950 g / cc。

    POLYETHYLENE COMPOSITIONS, METHOD OF PRODUCING THE SAME, FIBERS MADE THEREFROM, AND METHOD OF MAKING THE SAME
    3.
    发明申请
    POLYETHYLENE COMPOSITIONS, METHOD OF PRODUCING THE SAME, FIBERS MADE THEREFROM, AND METHOD OF MAKING THE SAME 有权

    公开(公告)号：US20110092937A1

    公开(公告)日：2011-04-21

    申请号：US12739511

    申请日：2009-07-09

    申请人： Randy E. Pepper ,  Mridula Kapur ,  Gert J. Claasen ,  Edward N. Knickerbocker ,  Nathan J. Wiker ,  William J. Michie, JR. ,  Mark B. Davis

    发明人： Randy E. Pepper ,  Mridula Kapur ,  Gert J. Claasen ,  Edward N. Knickerbocker ,  Nathan J. Wiker ,  William J. Michie, JR. ,  Mark B. Davis

    IPC分类号： A61F13/51 ,  C08F210/02 ,  C08F4/72 ,  B29C47/00 ,  D04H1/56 ,  B32B5/02 ,  D03D15/00 ,  D04H13/00 ,  D04B21/00 ,  D04H1/46

    CPC分类号： D01F6/30 ,  C08F210/02 ,  C08L23/04 ,  C08L23/0815 ,  C08L2205/02 ,  C08L2205/16 ,  C08L2314/06 ,  D01D5/08 ,  D01D5/10 ,  D01D5/12 ,  D01D10/02 ,  D01F6/04 ,  D04H1/56 ,  D04H3/007 ,  D04H3/16 ,  Y10T428/249921 ,  Y10T442/30 ,  Y10T442/3976 ,  Y10T442/60 ,  C08L2666/06

    摘要： The instant invention is a polyethylene composition, method of producing the same, fibers made therefrom, and method of making the same. The polyethylene composition according to instant invention comprises: (a) less than or equal to 100 percent by weight of the units derived from ethylene; and (b) less than 20 percent by weight of units derived from one or more α-olefin comonomers. The polyethylene composition according to instant invention has a density in the range of 0.920 to 0.970 g/cm3, a molecular weight distribution (Mw/Mn) in the range of 1.70 to 3.5, a melt index (I2) in the range of 0.2 to 1000 g/10 minutes, a molecular weight distribution (Mz/Mw) in the range of less than 2.5, vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the composition. The process for producing the inventive polyethylene composition comprises the steps of: (1) (co)polymerizing ethylene and optionally one or more α-olefin comonomers in the presence of a hafnium based metallocene catalyst via a gas phase (co)polymerization process in a single stage reactor; and (2) thereby producing the polyethylene composition having a density in the range of 0.920 to 0.970 g/cm3, a molecular weight distribution (Mw/Mn) in the range of 1.70 to 3.5, a melt index (I2) in the range of 0.2 to 1000 g/10 minutes, a molecular weight distribution (Mz/Mw) in the range of less than 2.5, vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the composition. The fibers according to the instant invention comprise a polyethylene composition comprising: (a) less than or equal to 100 percent by weight of the units derived from ethylene; and (b) less than 20 percent by weight of units derived from one or more α-olefin comonomers; wherein the polyethylene composition has a density in the range of 0.920 to 0.970 g/cm3, a molecular weight distribution (Mw/Mn) in the range of 1.70 to 3.5, a melt index (I2) in the range of 0.2 to 1000 g/10 minutes, a molecular weight distribution (Mz/Mw) in the range of less than 2.5, vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the composition. The process for making a fiber according to instant invention comprises the steps of: (1) selecting a polyethylene composition comprising: (a) less than or equal to 100 percent by weight of the units derived from ethylene; and (b) less than 20 percent by weight of units derived from one or more α-olefin comonomers; wherein the polyethylene composition has a density in the range of 0.920 to 0.970 g/cm3, a molecular weight distribution (Mw/Mn) in the range of 1.70 to 3.5, a melt index (I2) in the range of 0.2 to 1000 g/10 minutes, a molecular weight distribution (Mz/Mw) in the range of less than 2.5, vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the composition; (2) spinning the polyethylene composition into a fiber; and (3) thereby forming the fiber.

    Hydrogenated amorphous silicon alloys
    6.
    发明授权
    Hydrogenated amorphous silicon alloys 失效
    氢化非晶硅合金

    公开(公告)号：US5888452A

    公开(公告)日：1999-03-30

    申请号：US729434

    申请日：1991-07-12

    申请人： Guang Hai Lin ,  John O'M. Bockris ,  Muzhi He ,  Mridula Kapur

    发明人： Guang Hai Lin ,  John O'M. Bockris ,  Muzhi He ,  Mridula Kapur

    IPC分类号： H01L31/0376 ,  H01L31/20 ,  C22C29/18 ,  C22C16/00

    CPC分类号： H01L31/20 ,  H01L31/0376 ,  Y02E10/50

    摘要： Novel hydrogenated amorphous silicon alloys are disclosed. Hydrogenated amorphous silicon alloys produced by PECVD are disclosed. A method is also disclosed for the preparation of novel hydrogenated amorphous silicon alloys for use as thin films. The method comprises subjecting a mixed gas of gas-phase silicon compounds and other gas-phase alloy element compounds to plasma enhanced chemical vapor deposition in a reaction zone such that the alloy formed is deposited on a substrate.

    摘要翻译： 公开了新型氢化非晶硅合金。 公开了通过PECVD生产的氢化非晶硅合金。 还公开了用于制备用作薄膜的新型氢化非晶硅合金的方法。 该方法包括使气相硅化合物和其它气相合金元素化合物的混合气体在反应区中进行等离子体增强的化学气相沉积，使得形成的合金沉积在基底上。

    CAVITATED ORIENTED POLYETHYLENE POLYMER COMPOSITES
    9.
    发明申请
    CAVITATED ORIENTED POLYETHYLENE POLYMER COMPOSITES 有权
    密封的聚乙烯聚合物复合材料

    公开(公告)号：US20100227144A1

    公开(公告)日：2010-09-09

    申请号：US12715906

    申请日：2010-03-02

    申请人： Kevin L. Nichols ,  William J. Michie, JR. ,  Mridula Kapur

    发明人： Kevin L. Nichols ,  William J. Michie, JR. ,  Mridula Kapur

    IPC分类号： B32B27/32 ,  B29C47/78

    CPC分类号： B29C55/005 ,  B29C55/30 ,  B29K2023/065 ,  B29K2105/04 ,  B29K2105/16

    摘要： Solid state draw a polymer billet, wherein at least 50 percent of all polymers in the billet is a continuous phase of polyethylene polymer having a density of 0.941-0.959 grams per cubic centimeter and a weight-average molecular weight that is 110,000 grams per mole or greater, at a drawing rate of 1.2 meters per minute or faster using a tensile force to create an oriented and cavitated polymer composition whose cross section dimensions all exceed two millimeters.

    摘要翻译： 固态拉伸聚合物坯料，其中坯料中所有聚合物的至少50％是密度为0.941-0.959克/立方厘米，重均分子量为110,000克/摩尔的聚乙烯聚合物的连续相，或 以拉伸速度为1.2米/分钟或更快的拉伸速度，以产生横截面尺寸全部超过2毫米的取向和空化的聚合物组合物。

    Polyolefin Compositions, Articles Made Therefrom and Methods for Preparing the Same
    10.
    发明申请
    Polyolefin Compositions, Articles Made Therefrom and Methods for Preparing the Same 有权
    聚烯烃组合物及其制备方法及其制备方法

    公开(公告)号：US20090283939A1

    公开(公告)日：2009-11-19

    申请号：US12296147

    申请日：2007-04-03

    申请人： Michael D. Turner ,  Mridula Kapur

    发明人： Michael D. Turner ,  Mridula Kapur

    IPC分类号： C08L23/06 ,  B29C49/00

    CPC分类号： C08L23/06 ,  C08L23/04 ,  C08L23/0815 ,  C08L2666/06

    摘要： The invention provides compositions for blow molding applications and other applications, where such compositions comprise a high molecular weight ethylene interpolymer and a low molecular weight ethylene polymer, and where the high molecular weight ethylene interpolymer has a density from 0.920 g/cm3 to 0.950 g/cm3, and an I21 from 0.05 to 1 dg/min, and where the low molecular weight ethylene polymer has density from 0.965 g/cm3 to 0.985 g/cm3, and an I2 from 600 to 2000 dg/min. The composition has a density from 0.950 g/cm3 to 0.970 g/cm3, and comprises greater from 45 to 80 weight percent of the high molecular component, and from 20 to 55 weight percent of the low molecular weight component, based on the sum weight of the high molecular weight component and the low molecular weight component. The invention also provides for methods of preparing said compositions and for articles prepared from the same.

    摘要翻译： 本发明提供用于吹塑应用和其它应用的组合物，其中这种组合物包含高分子量乙烯互聚物和低分子量乙烯聚合物，并且其中高分子量乙烯互聚物的密度为0.920g / cm 3至0.950g / cm3，I21为0.05〜1dg / min，低分子量乙烯聚合物的密度为0.965g / cm 3〜0.985g / cm 3，I2为600〜2000dg / min。 该组合物的密度为0.950g / cm 3至0.970g / cm 3，并且包含较高分子组分的45至80重量％和低分子量组分的20至55重量％，基于总重量 的高分子量组分和低分子量组分。 本发明还提供了制备所述组合物和由其制备的制品的方法。