Functionalized elastomer nanocomposite
    42.
    发明授权
    Functionalized elastomer nanocomposite 有权
    官能化弹性体纳米复合材料

    公开(公告)号:US08399551B2

    公开(公告)日:2013-03-19

    申请号:US10518193

    申请日:2003-05-30

    摘要: An embodiment of the present invention is a nanocomposite comprising a clay and an elastomer comprising at least C2 to C10 olefin derived units; wherein the elastomer also comprises functionalized monomer units pendant to the elastomer. Desirable embodiments of the elastomer include poly(isobutylene-co-p-alkylstyrene) elastomers and poly(isobutylene-co-isoprene) elastomers, which are functionalized by reacting free radical generating agents and unsaturated carboxylic acids, unsaturated esters, unsaturated imides, and the like, with the elastomer. The clay is exfoliated in one embodiment by the addition of exfoliating agents such as alkyl amines and silanes to the clay. The composition can include secondary rubbers such as general purpose rubbers, and curatives, fillers, and the like. The nanocomposites of the invention have improved air barrier properties such as are useful for tire innerliners and innertubes.

    摘要翻译: 本发明的一个实施方案是纳米复合材料,其包含粘土和包含至少C2至C10烯烃衍生单元的弹性体; 其中弹性体还包括垂直于弹性体的官能化单体单元。 弹性体的优选实施方案包括聚(异丁烯 - 共 - 对烷基苯乙烯)弹性体和聚(异丁烯 - 共异戊二烯)弹性体,其通过使自由基产生剂和不饱和羧酸,不饱和酯,不饱和酰亚胺和 像弹性体一样。 粘土在一个实施方案中通过向粘土中加入去角质剂如烷基胺和硅烷来剥离。 组合物可以包括二次橡胶,例如通用橡胶,固化剂,填料等。 本发明的纳米复合材料具有改善的空气阻隔性能,例如可用于轮胎内衬和内管。

    Process for Making Dendritic Hydrocarbon Polymers
    44.
    发明申请
    Process for Making Dendritic Hydrocarbon Polymers 有权
    制备树枝状烃聚合物的方法

    公开(公告)号:US20110118420A1

    公开(公告)日:2011-05-19

    申请号:US12904428

    申请日:2010-10-14

    IPC分类号: C08F8/04 C08J3/24

    摘要: A process for making a substantially saturated dendritic hydrocarbon polymer. The process has the following steps: (a) polymerizing an amount of one or more alkadiene monomers and/or one or more alkenylaromatic polymers under anionic conditions in the presence of a di- or tri-functional organic lithium initiator to produce a polyalkadiene defining a multiplicity of lithiated chain ends; (b) reacting the polyalkadiene with an amount of a tri- or di-functional silane coupling agent to form a dendritic polyalkadiene; and (c) hydrogenating the dendritic polyalkadiene to form a substantially saturated dendritic hydrocarbon polymer. Also a process for process for making a dendritic hydrocarbon polymer, comprising: (a) polymerizing an amount of one or more alkadiene monomers and/or one or more alkenylaromatic polymers under anionic conditions in the presence of a di- or tri-functional organic lithium initiator to produce a hydrocarbon polymer defining a multiplicity of lithiated chain ends; and (b) reacting the hydrocarbon polymer with an amount of a tri- or di-functional silane coupling agent to form a dendritic hydrocarbon polymer.

    摘要翻译: 制备基本上饱和的树枝状烃聚合物的方法。 该方法具有以下步骤:(a)在二 - 或三官能有机锂引发剂的存在下,在阴离子条件下聚合一定量的一种或多种链烯二烯单体和/或一种或多种链烯基芳族聚合物,以产生限定 锂化链末端的多重性; (b)使聚二烯与一定量的三官能或二官能硅烷偶联剂反应以形成树枝状聚二烯; 和(c)氢化树枝状聚亚烷基二醇以形成基本饱和的树枝状烃聚合物。 还有一种用于制备树枝状烃聚合物的方法,其包括:(a)在二 - 或三官能有机锂存在下,在阴离子条件下聚合一定量的一种或多种链烯二烯单体和/或一种或多种链烯基芳族聚合物 引发剂以产生限定多个锂化链端的烃聚合物; 和(b)使烃聚合物与一定量的三官能或二官能的硅烷偶联剂反应以形成树枝状烃聚合物。

    Process for Making Thermoplastic Polymer Pellets
    45.
    发明申请
    Process for Making Thermoplastic Polymer Pellets 有权
    制造热塑性聚合物颗粒的方法

    公开(公告)号:US20110042380A1

    公开(公告)日:2011-02-24

    申请号:US12583318

    申请日:2009-08-18

    IPC分类号: B65D25/18 B29B9/06 C08F210/02

    摘要: Provided is a process for making thermoplastic polymer pellets. The process has the following steps: (a) melting a thermoplastic polymer to form a polymer melt; (b) extruding the melt through a die to form a substantially continuous molten polymer extrudate wherein the die has a contact surface bearing a polymer coating having a surface energy of less than 25 mN/m at 20° C.; (c) cooling the extrudate to form a cooled extrudate; and (d) pelletizing the cooled extrudate to form a plurality of polymer pellets. Provided is also a polymer pellet shipping system and a stable thermoplastic polymer pellet.

    摘要翻译: 提供制备热塑性聚合物颗粒的方法。 该方法具有以下步骤:(a)熔化热塑性聚合物以形成聚合物熔体; (b)通过模具挤出熔体以形成基本上连续的熔融聚合物挤出物,其中模具具有在20℃下承载表面能小于25mN / m的聚合物涂层的接触表面; (c)冷却挤出物以形成冷却的挤出物; 和(d)将冷却的挤出物造粒以形成多个聚合物颗粒。 还提供聚合物颗粒运输系统和稳定的热塑性聚合物颗粒。

    PROCESS FOR MAKING DENDRITIC POLYOLEFINS FROM TELECHELIC POLYCYCLIC OLEFINS
    50.
    发明申请
    PROCESS FOR MAKING DENDRITIC POLYOLEFINS FROM TELECHELIC POLYCYCLIC OLEFINS 审中-公开
    从电话多环烯烃制备疏水性聚烯烃的方法

    公开(公告)号:US20130172493A1

    公开(公告)日:2013-07-04

    申请号:US13341033

    申请日:2011-12-30

    IPC分类号: C08F136/20 C08F110/02

    摘要: A process for making dendritic hydrocarbon polymers by reacting an amount of one or more telechelic hydrocarbon polymers with an amount of one or more multifunctional coupling agents under conditions sufficient to produce the dendritic hydrocarbon polymer. The telechelic hydrocarbon polymer is made by ring opening metathesis polymerization (ROMP) in the presence of bi-functional alkene chain terminating agents (CTAs). The dendritic hydrocarbon polymer can be hydrogenated to produce a substantially saturated dendritic hydrocarbon polymer. The dendritic polyethylenes (dPE) can be used as processability additives to provide extensional hardening in low concentrations in various conventional polyethylenes (PEs) such as HDPE, LLDPE and mLLDPE.

    摘要翻译: 在足以产生树枝状烃聚合物的条件下,通过使一定量的一种或多种遥爪烃聚合物与一种或多种多官能偶联剂反应来制备树枝状烃聚合物的方法。 遥爪烃聚合物通过开环易位聚合(ROMP)在双官能烯链终止剂(CAs)存在下制备。 树枝状烃聚合物可以被氢化以产生基本饱和的树枝状烃聚合物。 树枝状聚乙烯(dPE)可用作加工性添加剂,以提供低浓度的各种常规聚乙烯(PE)如HDPE,LLDPE和mLLDPE的拉伸硬化。