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72 条记录 (耗时 0.031 秒)

    Nitroxide compounds for minimizing scorch in crosslinkable compositions
    13.
    发明授权
    Nitroxide compounds for minimizing scorch in crosslinkable compositions 失效
    用于最小化可交联组合物中焦化的硝酸氧化物

    公开(公告)号：US07842759B2

    公开(公告)日：2010-11-30

    申请号：US12267909

    申请日：2008-11-10

    申请人： Mohamed Esseghir ,  Bharat I. Chaudhary ,  Jeffrey M. Cogen ,  John Klier ,  Jinder Jow ,  Robert F. Eaton ,  Suzanne M. Guerra

    发明人： Mohamed Esseghir ,  Bharat I. Chaudhary ,  Jeffrey M. Cogen ,  John Klier ,  Jinder Jow ,  Robert F. Eaton ,  Suzanne M. Guerra

    IPC分类号： C08F8/30

    CPC分类号： C08F2/38 ,  C08F4/00 ,  C08K5/0025 ,  C08K5/3435

    摘要： Scorch is inhibited during the free-radical crosslinking of a crosslinkable polymer, e.g., an EPDM, by incorporating into the polymer before melt processing and crosslinking a scorch inhibiting amount of a derivative, preferably an ether, ester or urethane derivative, of a TEMPO compound, e.g., 4-hydroxy-tetrahydrocarbylpiperidin-1-oxyl. The scorch inhibitors of this invention perform as well, if not better, than their 4-hydroxy-tetrahydrocarbylpiperidin-1-oxyl counterparts in similar polymer compositions and under similar conditions in terms of scorch inhibition and ultimate degree of crosslinking, but exhibit less volatility and less migration within the polymer composition.

    摘要翻译： 在可交联聚合物（例如EPDM）的自由基交联期间，通过在熔融加工和交联焦烧抑制量的TEMPO化合物的衍生物，优选醚，酯或氨基甲酸酯衍生物的交联之前引入聚合物中，焦烧被抑制 ，例如4-羟基 - 四氢环丁基哌啶-1-基。 在类似的聚合物组合物和类似的条件下，本发明的焦烧抑制剂（如果不是更好）也与其4-羟基 - 四烃基哌啶-1-氧基对应物一样，在焦烧抑制和最终交联度方面也表现出较低的挥发性， 聚合物组合物内迁移少。

    Crosslinkable polyethylene composition, method of making the same, and articles made therefrom
    14.
    发明授权
    Crosslinkable polyethylene composition, method of making the same, and articles made therefrom 有权
    可交联聚乙烯组合物，其制造方法和由其制成的制品

    公开(公告)号：US08283420B2

    公开(公告)日：2012-10-09

    申请号：US12525688

    申请日：2008-01-25

    申请人： Bharat I. Chaudhary ,  John Klier

    发明人： Bharat I. Chaudhary ,  John Klier

    IPC分类号： C08F279/00 ,  C08F255/00 ,  C08L23/04 ,  C08K5/14

    CPC分类号： C08K5/14 ,  C08K5/0025 ,  C08K5/01 ,  C08L51/06 ,  C08L23/04 ,  C08L2666/02

    摘要： The instant invention is a crosslinkable polyethylene composition obtained via a process comprising the steps of (1) providing a polyethylene component; (2) providing an organic peroxide crosslinking agent,(3) providing a crosslinking coagent which comprises at least two terminal carbon-carbon double bonds and is an alkadiene, alkatriene, or alkatetraene compound; (4) melt blending the polyethylene component, the crosslinking agent, and the crosslinking coagent at a temperature less than the decomposition temperature of the crosslinking agent; and (5) thereby forming the crosslinkable polyethylene composition. The crosslinkable polyethylene composition may further include a scorch inhibitor, a cure booster, a stable free radical, one or more conventional additives, and/or combinations thereof. The instant invention further includes articles comprising the crosslinked product of the crosslinkable polyethylene composition.

    摘要翻译： 本发明是通过包括以下步骤的方法获得的可交联聚乙烯组合物：（1）提供聚乙烯组分; （2）提供有机过氧化物交联剂，（3）提供交联助剂，其包含至少两个末端碳 - 碳双键，并且是二烯烃，三亚甲基或烷基四烯化合物; （4）在低于交联剂分解温度的温度下熔融共混聚乙烯组分，交联剂和交联助剂; 和（5），从而形成可交联聚乙烯组合物。 可交联聚乙烯组合物还可以包含焦烧抑制剂，固化促进剂，稳定的自由基，一种或多种常规添加剂和/或其组合。 本发明还包括包含可交联聚乙烯组合物的交联产物的制品。

    Imide-Coupled Propylene-Based Polymer and Process
    16.
    发明申请
    Imide-Coupled Propylene-Based Polymer and Process 审中-公开
    酰亚胺基聚合物和工艺

    公开(公告)号：US20110009513A1

    公开(公告)日：2011-01-13

    申请号：US12831394

    申请日：2010-07-07

    申请人： Bharat I. Chaudhary ,  Rongjuan Cong ,  John Scott Parent

    发明人： Bharat I. Chaudhary ,  Rongjuan Cong ,  John Scott Parent

    IPC分类号： C08F255/00

    CPC分类号： C08F8/32 ,  C08F10/06

    摘要： Disclosed are propylene-based polymers with improved melt strength, improved strain hardening characteristics and processes for producing the same. The processes include reacting a polyamine with a maleic anhydride-grafted-propylene-based polymer. The processes produce a rheology-modified propylene-based polymer with long chain branching by forming a polyimide linkage which couples polymer chains of the propylene-based polymer. The polyimide-coupled propylene-based polymer exhibits improved melt strength and improved strain hardening characteristics.

    摘要翻译： 公开了具有改进的熔体强度，改进的应变硬化特性的丙烯基聚合物及其制备方法。 该方法包括使多胺与马来酸酐接枝丙烯基聚合物反应。 该方法通过形成聚合物连接而产生具有长链支化的流变改性的丙烯基聚合物，其聚合丙烯类聚合物的聚合物链。 聚酰亚胺结合的丙烯基聚合物表现出改进的熔体强度和改进的应变硬化特性。

    Polymer foam and method of making using oil-containing furnace black as an insulation enhancer
    19.
    发明授权
    Polymer foam and method of making using oil-containing furnace black as an insulation enhancer 有权
    聚合物泡沫和使用含油炉黑作为绝缘增强剂的方法

    公开(公告)号：US06258865B1

    公开(公告)日：2001-07-10

    申请号：US09595069

    申请日：2000-06-15

    申请人： Bharat I. Chaudhary

    发明人： Bharat I. Chaudhary

    IPC分类号： C08J916

    CPC分类号： C08J9/0066 ,  C08J2201/03 ,  C08J2205/052

    摘要： A closed-cell polymeric foam is provided which is formed using oil-containing furnace black as an insulation enhancer. Other foam properties (for example, cell sizes, densities, limiting oxygen index performance) are similar to those obtained with the use of thermal blacks.

    摘要翻译： 提供了一种闭孔聚合物泡沫，其使用含油炉黑作为绝缘增强剂形成。 其他泡沫性能（例如，电池尺寸，密度，极限氧指数性能）与使用热敏黑色获得的相似。