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    Method for producing rubber composition, and rubber composition
    1.
    发明授权
    Method for producing rubber composition, and rubber composition 有权

    公开(公告)号：US10087292B2

    公开(公告)日：2018-10-02

    申请号：US15512164

    申请日：2015-09-11

    Applicant: BRIDGESTONE CORPORATION

    Inventor： Aya Saiki ,  Toshihiro Uchiyama

    IPC: C08J5/10 ,  C08J3/20 ,  C08K3/04 ,  C08K3/36 ,  C08K5/25 ,  C08L7/00 ,  C08K9/04 ,  C08K9/12 ,  C08L9/00 ,  C08L91/00

    Abstract: Provided is a method for producing a rubber composition that includes a rubber component (A) including natural rubber, at least one filler (B) selected from an inorganic filler and carbon black, and a monohydrazide compound (C) supported on a solid. The monohydrazide compound (C) is represented by general formula (I): R—CONHNH2, where R represents an alkyl group having from 1 to 30 carbon atoms, a cycloalkyl group having from 3 to 30 carbon atoms, or an aryl group. The method comprises compounding in an optional preliminary compounding stage and a plurality of compounding stages, and adding the monohydrazide compound (C) supported on the solid and kneading in the preliminary compounding stage and/or a first compounding stage. Also provided is a rubber composition produced with this method.

    Rubber Compositions Comprising Metal Carboxylates And Processes For Making The Same
    2.
    发明申请
    Rubber Compositions Comprising Metal Carboxylates And Processes For Making The Same 有权
    包含金属羧酸盐的橡胶组合物及其制备方法

    公开(公告)号：US20150274939A1

    公开(公告)日：2015-10-01

    申请号：US14440161

    申请日：2013-11-04

    Applicant: Yaohong CHEN ,  BRIDGESTONE CORPORATION

    Inventor： Yaohong Chen ,  Toshihiro Uchiyama ,  Arif O. Gozen ,  Mindaugas Rackaitis

    IPC: C08K13/02 ,  C08K5/5415 ,  C08K5/098 ,  C08K3/36

    CPC classification number: C08K13/02 ,  B60C1/0016 ,  C08K3/04 ,  C08K3/36 ,  C08K5/098 ,  C08K5/5415 ,  C08K5/548 ,  C08L9/00

    Abstract: The present disclosure provides reinforcing filler-containing rubber compositions suitable for use in tires, and particularly in tire treads. These rubber compositions comprise a metal carboxylate. The metal carboxylate provides improved processability to the rubber compositions in the form of a reduced Mooney viscosity. In certain exemplary embodiments, these rubber compositions containing the metal carboxylate also have an enhanced elastic modulus (also referred to as the G′). Further, in certain of the enhanced elastic modulus embodiments, the rubber compositions containing the metal carboxylate also have decreased hysteresis loss.

    Abstract translation: 本公开提供了适用于轮胎，特别是在轮胎胎面中的增强填料的橡胶组合物。 这些橡胶组合物包含金属羧酸盐。 金属羧酸盐以降低的门尼粘度的形式提供对橡胶组合物的改进的加工性能。 在某些示例性实施方案中，含有金属羧酸盐的这些橡胶组合物也具有增强的弹性模量（也称为G'）。 此外，在某些增强的弹性模量实施方案中，含有金属羧酸盐的橡胶组合物也具有降低的滞后损失。

    Silica Shielding Agents And Related Methods
    7.
    发明申请
    Silica Shielding Agents And Related Methods 有权
    二氧化硅屏蔽剂及相关方法

    公开(公告)号：US20160130423A1

    公开(公告)日：2016-05-12

    申请号：US14933140

    申请日：2015-11-05

    Applicant: Bridgestone Corporation

    Inventor： Yaohong Chen ,  Arif O. Gozen ,  Toshihiro Uchiyama

    IPC: C08K5/548 ,  C08K3/36

    CPC classification number: C08K5/548 ,  C08K3/36 ,  C08K5/5419 ,  C08L9/00

    Abstract: Disclosed herein are rubber compositions comprising at least one conjugated diene polymer or copolymer, silica filler, and a silica shielding agent of formula (I), and related methods such as for improving silica dispersability in silica-filled rubber compositions. Also disclosed herein are tire components, such as tire treads containing the rubber compositions disclosed herein.

    Abstract translation: 本文公开了包含至少一种共轭二烯聚合物或共聚物，二氧化硅填料和式（I）的二氧化硅屏蔽剂的橡胶组合物，以及相关方法，例如用于改善二氧化硅填充的橡胶组合物中的二氧化硅分散性。 本文还公开了轮胎部件，例如包含本文公开的橡胶组合物的轮胎胎面。

    Functionalized Polymer
    8.
    发明申请
    Functionalized Polymer 有权
    官能化聚合物

    公开(公告)号：US20150011710A1

    公开(公告)日：2015-01-08

    申请号：US14369422

    申请日：2012-12-20

    Applicant: Bridgestone Corporation

    Inventor： Zengquan Qin ,  Terrence E. Hogan ,  Toshihiro Uchiyama ,  Joshua P. Abell ,  Steven Luo

    IPC: C08F212/08

    CPC classification number: C08F212/08 ,  C08C19/44 ,  C08K3/36 ,  C08L9/00 ,  C08L15/00

    Abstract: A method for providing a polymer having terminal functionality involves reacting a terminally active polymer with an α,β-ethylenically unsaturated compound that includes a group 2-13 element so as to provide a functionalized polymer. The resulting polymer exhibits enhanced interactivity with particulate fillers and can be used in the manufacture of vulcanizates.

    Abstract translation: 提供具有末端官能团的聚合物的方法包括使末端活性聚合物与包含2-13族元素的α，β-烯键式不饱和化合物反应，以提供官能化聚合物。 所得聚合物与颗粒填料表现出增强的相互作用，并可用于制造硫化橡胶。

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