Metathesis Catalyst System for Polymerizing Cycloolefins

    公开(公告)号:US20200094233A1

    公开(公告)日:2020-03-26

    申请号:US16575800

    申请日:2019-09-19

    Abstract: A supported catalyst system is based on a transition metal carbene including the moiety M1=CR*)2, wherein M1 is the transition metal and R* is hydrogen or a C1-C8 hydrocarbyl. The catalyst system can be supported on a metal oxide support such as silica or the catalyst can be self-supporting. Methods of making the catalyst system can involve precursors based on and/or reacted with aluminum alkyls, halides, and/or alkoxides. Methods of polymerizing cyclic olefins with the catalyst system can obtain polyalkenamers, cyclic olefin polymers, cyclic olefin copolymers, and other metathesis reaction products. The supported catalyst and/or monomer can be recovered and recycled to the polymerization reactor.

    Functionalized Resin for Tire Applications
    52.
    发明申请

    公开(公告)号:US20190330401A1

    公开(公告)日:2019-10-31

    申请号:US16070304

    申请日:2017-03-08

    Abstract: This invention relates to a silane-functionalized resin composition having a polymer backbone, wherein the polymer backbone is selected from at least one of C5 homopolymers and copolymer resins, terpene homopolymer or copolymer resins, pinene homopolymer or copolymer resins, C9 homopolymers and copolymer resins, C5/C9 copolymer resins, alpha-methylstyrene homopolymer or copolymer resins, and combinations thereof, and wherein the polymer backbone is substantially free of styrene copolymer; and a silane, where the ratio of the mole percent of the silane to the mole percent of the polymer backbone in the composition is in the amount of 0.04 to 3.0 as determined by H-NMR.

    Functionalized Resins for High Performance Tires
    58.
    发明申请
    Functionalized Resins for High Performance Tires 审中-公开
    高性能轮胎功能化树脂

    公开(公告)号:US20160289352A1

    公开(公告)日:2016-10-06

    申请号:US15035059

    申请日:2014-08-11

    CPC classification number: C08F132/08 B60C1/0016 C08K5/5425 C08L9/00 C08L9/06

    Abstract: This invention relates to a dicyclopentadiene (DCPD)-based resin functionalized with groups capable of reacting with silica or carbon black for use in high performance tires and a preferred method of preparing the functionalized resin comprising ruthenium-catalyzed ring-opening cross metathesis. The functionalized resin may comprise the reaction product obtained by contacting a polymer comprising units derived from (DCPD) and a vinyl monomer or vinylene monomer in the presence of a metathesis catalyst, wherein the vinyl monomer or vinylene monomer comprises at least one of the following functional groups: a silyl group, a siloxy group, or an alkoxysilyl group. This invention further relates to a tire tread composition comprising the functionalized resin and which exhibits enhanced durability, traction, handling, and extractability properties.

    Abstract translation: 本发明涉及用能够与高性能轮胎中使用的二氧化硅或炭黑反应的基团官能化的二环戊二烯(DCPD)系树脂,以及制备包含钌催化的开环交叉复分解的官能化树脂的优选方法。 官能化树脂可以包含通过在复分解催化剂存在下使包含衍生自(DCPD)的单体和乙烯基单体或亚乙烯基单体的聚合物接触而获得的反应产物,其中乙烯基单体或亚乙烯基单体包含以下功能性的至少一种 基团:甲硅烷基,甲硅烷氧基或烷氧基甲硅烷基。 本发明还涉及包含官能化树脂并且具有增强的耐久性,牵引力,处理性和可萃取性能的轮胎胎面组合物。

    Silane-Functionalized Hydrocarbon Polymer Modifiers for Elastomeric Compositions
    59.
    发明申请
    Silane-Functionalized Hydrocarbon Polymer Modifiers for Elastomeric Compositions 有权
    用于弹性组合物的硅烷官能化烃聚合物改性剂

    公开(公告)号:US20160264689A1

    公开(公告)日:2016-09-15

    申请号:US15165241

    申请日:2016-05-26

    Abstract: An elastomeric composition and method incorporating a hydrocarbon polymer modifier with improved permanence. The composition comprises elastomer, filler and silane-functionalized hydrocarbon polymer modifier (Si-HPM) adapted to couple the Si-HPM to the elastomer, filler or both, wherein the Si-HPM comprises an interpolymer of monomers chosen from piperylenes, cyclic pentadienes, aromatics, limonenes, pinenes, amylenes, and combinations thereof. The method comprises melt processing a mixture to form the elastomeric composition in the shape of an article, wherein the mixture comprises elastomer, Si-HPM, silica, bifunctional organosilane crosslinking agent; and curing the elastomeric composition to form the article. Also disclosed are a silylated hydrocarbon polymer modifier coupled with a bifunctional organosilane crosslinking agent, and a silica-coupled hydrocarbon polymer modifier coupled to the silica via the bifunctional organosilane crosslinking agent.

    Abstract translation: 一种具有改进的耐久性的烃聚合物改性剂的弹性体组合物和方法。 该组合物包括适于将Si-HPM偶联到弹性体,填料或两者的弹性体,填料和硅烷官能化烃聚合物改性剂(Si-HPM),其中Si-HPM包含选自胡椒基,环戊二烯, 芳族化合物,柠檬烯,蒎烯,二烯类及其组合。 该方法包括熔融加工混合物以形成制品形状的弹性体组合物,其中该混合物包含弹性体,Si-HPM,二氧化硅,双功能有机硅烷交联剂; 并固化弹性体组合物以形成制品。 还公开了与双功能有机硅烷交联剂偶联的甲硅烷基化烃聚合物改性剂和通过双官能有机硅烷交联剂与二氧化硅偶合的二氧化硅偶合烃聚合物改性剂。

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