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    Thermoplastic elastomers and process for making the same
    6.
    发明授权
    Thermoplastic elastomers and process for making the same 失效
    热塑性弹性体及其制造方法

    公开(公告)号：US07696276B2

    公开(公告)日：2010-04-13

    申请号：US11259019

    申请日：2005-10-26

    申请人： Maria D. Ellul ,  Jianya Cheng

    发明人： Maria D. Ellul ,  Jianya Cheng

    IPC分类号： C08L21/00 ,  C08L23/00

    CPC分类号： C08L23/10 ,  C08F8/34 ,  C08F2810/20 ,  C08K3/04 ,  C08L21/00 ,  C08L23/12 ,  C08L23/16 ,  C08L91/005 ,  C08L2205/02 ,  C08L2312/00 ,  C08L2314/06 ,  C08L2666/04 ,  C08L2666/06 ,  C08F110/02

    摘要： A process for producing a thermoplastic elastomer composition, the process comprising synthesizing an elastomeric copolymer by polymerizing ethylene, an α-olefin, and optionally a diene monomer within the gas phase to thereby produce a gas-phase elastomeric copolymer, blending the gas-phase elastomeric copolymer with a thermoplastic polymer to form a mix of the elastomeric copolymer and thermoplastic polymer, and dynamically vulcanizing the gas-phase elastomeric copolymer within the mix of the elastomeric copolymer and thermoplastic polymer.

    摘要翻译： 一种制备热塑性弹性体组合物的方法，该方法包括通过在气相中聚合乙烯，α-烯烃和任选的二烯单体合成弹性体共聚物，从而产生气相弹性体共聚物，将气相弹性体共聚物 与热塑性聚合物共聚以形成弹性体共聚物和热塑性聚合物的混合物，并且在弹性共聚物和热塑性聚合物的混合物内动态硫化气相弹性体共聚物。

    Method for preparing thermoplastic vulcanizates with improved extrusion surfaces
    7.
    发明申请
    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：US20070135571A1

    公开(公告)日：2007-06-14

    申请号：US11297937

    申请日：2005-12-09

    申请人： Maria Ellul ,  Jianya Cheng

    发明人： Maria Ellul ,  Jianya Cheng

    IPC分类号： C08L53/00

    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： The invention described is 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 (ML1+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; wherein the direct oil injection locations into the extruder are positioned at or immediately before one or more distributive mixing elements, which distributive mixing elements are immediately followed by one or more dispersive mixing elements. Thermoplastic vulcanizates capable of being extrusion molded with a smooth surface and low surface spot count, in addition to excellent elastomeric properties, are obtained through the use of the process described.

    摘要翻译： 本发明描述了制备动态硫化热塑性弹性体的方法，该方法包括在熔融反应挤出机中的剪切条件下的熔融加工，A）至少一种热塑性树脂，B）至少一种门尼粘度（ML）的可硫化气相弹性体， 约1至4℃（125℃））为约65至约450℃，C）固化剂或试剂，和D）加工油，其中将所述加工油D）加入到挤出机中 至少三个注油位置位于a）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）在所述气相弹性体的硫化基本上完成的点的位置之后的至少一个位置; 其中进入挤出机的直接注油位置位于或紧邻一个或多个分配混合元件之前，分配混合元件紧随着一个或多个分散混合元件。 通过使用所述方法，可以获得能够通过光滑表面挤出成型并具有低表面斑点数的热塑性硫化橡胶，以及优异的弹性体性质。

    Process for Forming Thermoplastic Vulcanizates and Extruded Articles Therefrom
    9.
    发明申请
    Process for Forming Thermoplastic Vulcanizates and Extruded Articles Therefrom 有权
    形成热塑性硫化橡胶和挤压制品的方法

    公开(公告)号：US20100113694A1

    公开(公告)日：2010-05-06

    申请号：US12579998

    申请日：2009-10-15

    申请人： Hari P. Nadella ,  Jianya Cheng

    发明人： Hari P. Nadella ,  Jianya Cheng

    IPC分类号： C08F8/00

    CPC分类号： C08L23/16 ,  C08K5/14 ,  C08L23/10 ,  C08L61/00

    摘要： A process for preparing modified thermoplastic vulcanizate compositions, the process comprising the steps of introducing molten thermoplastic vulcanizate and a free-radical source, where the thermoplastic vulcanizate includes cured rubber dispersed within a thermoplastic matrix.

    摘要翻译： 一种制备改性热塑性硫化橡胶组合物的方法，该方法包括引入熔融热塑性硫化橡胶和自由基源的步骤，其中热塑性硫化橡胶包括分散在热塑性基质中的固化橡胶。