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    Core-shell particles and rubber composition
    1.
    发明公开
    Core-shell particles and rubber composition 审中-公开
    Kernschalenteilchen und Kautschukzusammensetzung

    公开(公告)号：EP1661926A1

    公开(公告)日：2006-05-31

    申请号：EP05111088.0

    申请日：2005-11-22

    申请人： THE GOODYEAR TIRE & RUBBER COMPANY

    发明人： CASTNER, Eric Sean ,  ZHENG, Lei ,  XIE, Feng Anne ,  ZHANG, Ping

    IPC分类号： C08F279/02 ,  C08L51/04 ,  B60C1/00

    CPC分类号： C08L51/04 ,  C08F279/02 ,  C08L9/06 ,  Y10S525/902 ,  Y10T428/2982 ,  Y10T428/2989 ,  C08L2666/24 ,  C08L2666/02 ,  C08L2666/04

    摘要： This invention discloses a process for synthesizing a modified crosslinked elastomeric particle which comprises a two-step polymerization of a conjugated diolefin monomer and a vinyl aromatic monomer by emulsion polymerization, wherein the particle is synthesized by the steps of (1) polymerizing a conjugated diolefin monomer, alone or in combination with a vinyl aromatic monomer, and optionally a crosslinking monomer, to create a crosslinked elastomeric core having residual double bonds and an outer surface; (2) polymerizing a monomer of a vinyl aromatic monomer, alone or in combination with a diolefin monomer, to create a polymeric shell, wherein the polymeric shell is grafted to the outer surface of the polymeric core by reacting with the residual double bonds of the polymeric core; and (3) coagulating the core-shell emulsion latex solution to recover the particles.

    摘要翻译： 本发明公开了一种合成改性交联弹性体颗粒的方法，该方法包括通过乳液聚合对共轭二烯烃单体和乙烯基芳族单体进行两步聚合，其中所述颗粒通过以下步骤合成：（1）将共轭二烯烃单体 单独或与乙烯基芳族单体和任选的交联单体组合以产生具有残留双键和外表面的交联弹性体芯; （2）单独或与二烯单体组合使乙烯基芳族单体的单体聚合以产生聚合物壳，其中聚合物壳通过与聚合物壳的残余双键反应而接枝到聚合物芯的外表面 聚合物芯; 和（3）凝结核 - 壳乳液胶乳溶液以回收颗粒。

    COUPLING SYSTEM FOR SILICA CONTAINING RUBBER COMPOUNDS
    2.
    发明公开
    COUPLING SYSTEM FOR SILICA CONTAINING RUBBER COMPOUNDS 审中-公开

    公开(公告)号：EP4345132A1

    公开(公告)日：2024-04-03

    申请号：EP23199308.0

    申请日：2023-09-25

    申请人： The Goodyear Tire & Rubber Company

    发明人： YAN, Yuan-Yong ,  CHE, Justin Yinket ,  CASTNER, Eric Sean ,  SANDSTROM, Paul Harry

    IPC分类号： C08K5/37 ,  C08K5/5435 ,  C08K3/36 ,  C08L21/00

    摘要： A coupling system for use in a vulcanizable silica-filled rubber composition is disclosed. The coupling system comprises a non-active sulfur containing silane coupling agent for reacting with an associated silica or precipitated silica to produce a hydrophobic silica and a crosslinking reagent for reacting with the non-active sulfur containing silane coupling agent and an associated polymer. Furthermore, a rubber composition is disclosed comprising or produced by using the said coupling system. Finally, a vulcanizable silica-filled rubber compound for use in a tire, a tire component, a belt, a pipe, a hose, a fitting or footwear is disclosed, the compound comprising a diene-based polymer, a filler comprising at least silica or precipitated silica, a non-active sulfur containing silane coupling agent comprising at least one end terminating group reactive with a hydroxyl group contained on the silica, and a crosslinking reagent comprising at least one end terminating group reactive with a functional moiety contained on the non-active sulfur containing silane coupling agent and at least a second end terminating group reactive with the diene-based polymer.