利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

40 条记录 (耗时 0.02 秒)

    Thermoplastic vulcanizate composition
    12.
    发明申请
    Thermoplastic vulcanizate composition 有权
    热塑性硫化胶组合物

    公开(公告)号：US20080033089A1

    公开(公告)日：2008-02-07

    申请号：US11497091

    申请日：2006-08-01

    申请人： Maria D. Ellul ,  Periagaram S. Ravishankar ,  Jianya Cheng ,  Paul E. McDaniel

    发明人： Maria D. Ellul ,  Periagaram S. Ravishankar ,  Jianya Cheng ,  Paul E. McDaniel

    IPC分类号： C08K5/09

    CPC分类号： C08L47/00 ,  C08F210/18 ,  C08L23/10 ,  C08L23/12 ,  C08L23/14 ,  C08L23/16 ,  C08L2205/02 ,  C08F4/68 ,  C08F2/001 ,  C08L2666/06 ,  C08F210/06 ,  C08F236/00 ,  C08F2500/25 ,  C08F2500/17 ,  C08F2500/12 ,  C08F2500/03 ,  C08F2500/11

    摘要： The instant disclosure is directed to a thermoplastic vulcanizate composition comprising a dynamically-cured rubber; from about 20 to about 300 parts by weight of a thermoplastic resin per 100 parts by weight rubber and from about 30 to about 250 parts by weight additional oil per 100 parts by weight rubber; wherein the rubber comprises a multimodal polymer composition cured with a curing agent, the multimodal polymer composition comprising 45 to 75 wt% of a first polymer fraction and 25 to 55 wt % of a second polymer fraction, each comprising ethylene, a C3-C10 alpha-olefin, and a non-conjugated diene, wherein the polymer fractions have been polymerized using a Ziegler-Natta catalyst system, wherein the first polymer fraction has a Mooney viscosity of greater than or equal to about 150 ML(1+4@125° C.), and the second polymer fraction has a Mooney viscosity of about 20 ML to about 120 ML; and about 10 phr to about 50 phr of an extender oil. A method of producing the thermoplastic vulcanizate is also disclosed.

    摘要翻译： 本公开涉及包含动态固化橡胶的热塑性硫化橡胶组合物; 每100重量份橡胶约20-300重量份热塑性树脂和每100重量份橡胶约30至约250重量份附加油; 其中所述橡胶包括用固化剂固化的多峰聚合物组合物，所述多峰聚合物组合物包含45至75重量％的第一聚合物部分和25至55重量％的第二聚合物部分，每个包含乙烯， 3-C 10α-烯烃和非共轭二烯，其中聚合物部分已经使用齐格勒 - 纳塔催化剂体系聚合，其中第一聚合物部分具有门尼粘度 大于或等于约150ML（1 + 4 @ 125℃），第二聚合物级分的门尼粘度为约20ML至约120ML; 和约10phr至约50phr的增量油。 还公开了一种生产热塑性硫化橡胶的方法。

    Thermoplastic elastomers having improved processing and physical property balance
    13.
    发明授权
    Thermoplastic elastomers having improved processing and physical property balance 有权
    具有改进的加工和物理性能平衡的热塑性弹性体

    公开(公告)号：US06451915B1

    公开(公告)日：2002-09-17

    申请号：US09752080

    申请日：2000-12-29

    申请人： Maria D. Ellul ,  Paul E. McDaniel ,  Thomas L. Peltier ,  Jianya Cheng ,  Patrick Brant ,  Armenag H. Dekmezian

    发明人： Maria D. Ellul ,  Paul E. McDaniel ,  Thomas L. Peltier ,  Jianya Cheng ,  Patrick Brant ,  Armenag H. Dekmezian

    IPC分类号： C08L2100

    CPC分类号： C08L23/10 ,  C08L23/16 ,  C08L51/06 ,  C08L2312/00 ,  C08L2666/04 ,  C08L2666/24

    摘要： A thermoplastic elastomer formed by a process comprising the steps of dynamically vulcanizing a rubber within a mixture that includes the rubber, from about 10 to about 80 percent by weight of a thermoplastic resin based upon the total weight of the rubber and the thermoplastic combined, and from about 1 to about 25 percent by weight of a polymeric processing additive based upon the total weight of the rubber and the thermoplastic combined, where the polymeric processing additive is a linear polyolefin resin that has an melt flow rate that is greater than about 1,000 dg/min, a diene-modified polyolefin polymer that has an melt flow rate that is greater than about 1,000 dg/min, from about 0.005 to about 2.00 mole percent polymeric units deriving from dienes, and a viscosity average branching index that is from about 0.4 to about 0.95, or a mixture of the linear polyolefin resin and the diene-modified polyolefin polymer, where the step of dynamically vulcanizing the rubber results in vulcanized rubber having a crosslink density of about 40 to about 180 mole per milliliter of rubber.

    摘要翻译： 一种通过包括下列步骤形成的热塑性弹性体的方法，所述热塑性弹性体包括以包含橡胶的混合物中的橡胶动态硫化，基于橡胶和热塑性组合的总重量约10至约80重量％的热塑性树脂，以及 约1至约25重量％的基于橡胶和热塑性组合的总重量的聚合加工添加剂，其中聚合物加工添加剂是具有大于约1,000dg的熔体流动速率的线性聚烯烃树脂 / min，具有大于约1,000dg / min的熔体流动速率，约0.005至约2.00摩尔％衍生自二烯的聚合物单元的二烯改性的聚烯烃聚合物，粘度平均支化指数为约0.4 至约0.95，或线性聚烯烃树脂和二烯改性聚烯烃聚合物的混合物，其中动态硫化橡胶的步骤导致外露 具有约40至约180摩尔每毫升橡胶的交联密度的硫化橡胶。

    Peroxide cured TPV
    14.
    发明授权
    Peroxide cured TPV 有权
    过氧化物固化TPV

    公开(公告)号：US08969481B2

    公开(公告)日：2015-03-03

    申请号：US13127826

    申请日：2009-11-05

    申请人： Maria D. Ellul ,  Periagaram S. Ravishankar

    发明人： Maria D. Ellul ,  Periagaram S. Ravishankar

    IPC分类号： C08L23/04 ,  C08L45/00 ,  C08L23/10 ,  C08L23/16

    CPC分类号： C08L23/10 ,  C08L23/16 ,  C08L2666/08 ,  C08L2666/06

    摘要： Thermoplastic elastomer compositions and methods for making same. The elastomer composition can include at least one partially cured rubber component that is an ethylene-alpha-olefin-vinyl norbornene elastomeric polymer, and at least one thermoplastic component. The rubber component is at least partially cured using a peroxide curative in an amount effective to yield a cure level of the rubber component of at least 85%. The rubber component has a molecular weight distribution (MWD) less than 6, and a branching index greater than 0.60.

    摘要翻译： 热塑性弹性体组合物及其制备方法。 弹性体组合物可以包括至少一种部分固化的橡胶组分，其是乙烯-α-烯烃 - 乙烯基降冰片烯弹性体聚合物，和至少一种热塑性组分。 使用过氧化物固化剂将橡胶组分至少部分固化，其用量有效地使橡胶组分的固化水平至少为85％。 橡胶组分的分子量分布（MWD）小于6，支化指数大于0.60。

    Thermoplastic Polymer Compositions, Methods for Making the Same, and Articles Made Therefrom
    15.
    发明申请
    Thermoplastic Polymer Compositions, Methods for Making the Same, and Articles Made Therefrom 有权
    热塑性聚合物组合物，制造方法和制造方法

    公开(公告)号：US20100137521A1

    公开(公告)日：2010-06-03

    申请号：US12598549

    申请日：2008-04-14

    申请人： Periagaram S. Ravishankar ,  Maria D. Ellul

    发明人： Periagaram S. Ravishankar ,  Maria D. Ellul

    IPC分类号： C08L23/14

    CPC分类号： C08L23/10 ,  C08F210/06 ,  C08L23/12 ,  C08L23/142 ,  C08L23/16 ,  C08L2205/02 ,  C08L2666/06 ,  C08L2666/08 ,  C08F210/16 ,  C08F2500/20

    摘要： Provided are thermoplastic polymer compositions having a single melting point, articles made therefrom, and methods for elevating the melting point of low melting point polymers. Thermoplastic polymer compositions are composed of one or more high melting point polyolefins and a thermoplastic component that includes a low melting point polypropylene. High melting point polyolefins are composed of a stereoregular polypropylene having a tacticity similar to the low melting point polypropylene. The low melting point polypropylene includes, for example, propylene homopolymers and copolymers composed of propylene and one or more comonomers. Thermoplastic polymer compositions may also optionally contain any of the various additives commonly used in such polymer compositions, such as for example oils, etc. In one embodiment, thermoplastic polymer compositions are thermoplastic elastomer compositions that include an elastomeric component composed of an elastomer or rubber. The elastomeric component may be substantially or partially crosslinked to form a thermoplastic vulcanizate.

    摘要翻译： 提供具有单一熔点的热塑性聚合物组合物，由其制成的制品，以及用于提高低熔点聚合物熔点的方法。 热塑性聚合物组合物由一种或多种高熔点聚烯烃和包含低熔点聚丙烯的热塑性组分组成。 高熔点聚烯烃由具有类似于低熔点聚丙烯的立构规整度的立体规则聚丙烯构成。 低熔点聚丙烯包括例如由丙烯和一种或多种共聚单体组成的丙烯均聚物和共聚物。 热塑性聚合物组合物还可任选地含有通常用于这种聚合物组合物，例如油等中的任何各种添加剂。在一个实施方案中，热塑性聚合物组合物是热塑性弹性体组合物，其包括由弹性体或橡胶组成的弹性体组分。 弹性体组分可以基本上或部分地交联以形成热塑性硫化橡胶。

    Method for preparing thermoplastic vulcanizates with improved extrusion surfaces
    16.
    发明授权
    Method for preparing thermoplastic vulcanizates with improved extrusion surfaces 失效
    制备具有改进的挤压表面的热塑性硫化橡胶的方法

    公开(公告)号：US07655727B2

    公开(公告)日：2010-02-02

    申请号：US11297937

    申请日：2005-12-09

    申请人： Maria D. Ellul ,  Jianya Cheng

    发明人： Maria D. Ellul ,  Jianya Cheng

    IPC分类号： C08J3/18 ,  C08J3/20 ,  C08J3/24

    CPC分类号： B29C47/1063 ,  B29C47/0004 ,  B29C47/0009 ,  B29C47/1045 ,  B29K2021/00 ,  B29K2101/12 ,  B29K2105/0005 ,  B29K2105/0055 ,  B29K2105/16 ,  C08F8/50

    摘要： A process for the preparation of dynamically vulcanized thermoplastic elastomers comprising melt processing under shearing conditions in melt reaction extruder, A) at least one thermoplastic resin, B) at least one vulcanizable gas-phase elastomer having a Mooney viscosity (ML.sub.1+4(125° C.)) of from about 65 to about 450, C) a curing agent or agents, and D) process oil, wherein said process oil D) is added to the extruder in at least three oil injection positions located a) at least one location before or within the first 15% of the total length of the extruder; b) at least one other location prior to, at or within 10% total extruder length after the onset of the vulcanization of said gas-phase elastomer; and c) at least one location subsequent to the location of the point at which the vulcanization of said gas-phase elastomer is substantially completed.

    摘要翻译： 一种制备动态硫化热塑性弹性体的方法，包括在熔融反应挤出机中的剪切条件下的熔体加工，A）至少一种热塑性树脂，B）至少一种门尼粘度（ML1 + 4（125℃））为约65至约450，C）固化剂或试剂，和D）加工油，其中所述加工油D）在至少三个注油位置中加入到挤出机中 ）在挤出机的总长度的前15％之前或之内的至少一个位置; b）在所述气相弹性体硫化开始之前，期间或之内的10％总挤出机长度处的至少另一个位置; 和c）在基本上完成所述气相弹性体硫化的点的位置之后的至少一个位置。

    Thermoplastic elastomers having improved low temperature properties
    19.
    发明授权
    Thermoplastic elastomers having improved low temperature properties 有权
    具有改善的低温性能的热塑性弹性体

    公开(公告)号：US06939918B2

    公开(公告)日：2005-09-06

    申请号：US10204241

    申请日：2001-03-23

    申请人： Maria D. Ellul ,  Sudhin Datta ,  Jianya Cheng ,  Paul McDaniel ,  Kang-Bo Wang

    发明人： Maria D. Ellul ,  Sudhin Datta ,  Jianya Cheng ,  Paul McDaniel ,  Kang-Bo Wang

    IPC分类号： C08L23/10 ,  C08L23/16 ,  C08L9/00

    CPC分类号： C08L23/16 ,  C08K3/346 ,  C08L23/10 ,  C08L23/12 ,  C08L61/06 ,  C08L91/00 ,  C08L2205/03 ,  C08L2207/04 ,  C08L2312/00 ,  C08L2666/06 ,  C08L2666/02

    摘要： The present invention provides a thermoplastic vulcanizate prepared by a process comprising the steps of dynamically vulcanizing rubber within a blend that includes the rubber and a thermoplastic resin, where the rubber comprises an elastomeric copolymer of ethylene, at least one α-olefin, and optionally one or more diene monomers, where the elastomeric copolymer is characterized by having a crystallinity, as measured by differential scanning calorimetry, of less than 10 J/g, an ethylene content that is less than 90 mole percent based upon the entire copolymer, a weight average molecular weight that is greater than about 20,000 as measured by GPC with polystyrene standards, a molecular weight distribution that is less than 7, and an ethylene compositional distribution that is less than about 4 percent for the closest 90 percent of fractioned samples.

    摘要翻译： 本发明提供了一种通过包括以下步骤制备的热塑性硫化橡胶，该方法包括在包括橡胶和热塑性树脂的共混物内动态硫化橡胶，其中橡胶包括乙烯，至少一种α-烯烃和任选的一种 或更多的二烯单体，其中弹性体共聚物的特征在于通过差示扫描量热法测量的结晶度小于10J / g，基于整个共聚物的乙烯含量小于90摩尔％，重均分子量 分子量大于约20,000，通过GPC用聚苯乙烯标准品测定，分子量分布小于7，乙烯组分分布对于最接近90％的分馏样品小于约4％。