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21 条记录 (耗时 0.018 秒)

    Diene rubber, process for production thereof, rubber compositions, process for producing the same, and crosslinked rubbers
    2.
    发明授权
    Diene rubber, process for production thereof, rubber compositions, process for producing the same, and crosslinked rubbers 有权
    二烯橡胶，其制备方法，橡胶组合物，其制备方法和交联橡胶

    公开(公告)号：US06984706B2

    公开(公告)日：2006-01-10

    申请号：US10507835

    申请日：2003-03-14

    申请人： Takeshi Karato ,  Masaaki Komatu ,  Kazuhiro Takase

    发明人： Takeshi Karato ,  Masaaki Komatu ,  Kazuhiro Takase

    IPC分类号： C08F36/04 ,  C08F2/42

    CPC分类号： C08F236/10 ,  C08F36/06 ,  C08L9/00 ,  C08L9/06 ,  C08L2205/02 ,  C08F2/42 ,  C08F4/48 ,  C08F2/40 ,  C08F4/42 ,  C08L2666/08

    摘要： A diene rubber (A) having a weight average molecular weight (Mw) of 100,000 to 3,000,000, an Mw/number average molecular weight (Mn) ratio of 1.30 to 2.50, and an Mw/peak top molecular weight (Mp) ratio 0.70 to 1.30. A rubber composition comprising the diene rubber (A) and a diene rubber (B) having an Mw of 2,000 to 90,0000 and/or an oil extender for rubber has good processability and can give a rubber vulcanizate having high tensile strength and good abrasion resistance. The diene rubber (A) is produced by conducting a living polymerization of diene monomer in a hydrocarbon solvent; adding a polymerization stopper to a polymerization mixture at a conversion of 5 to 98% to deactivate 10 to 90% by mole of active terminals present as of the initiation of polymerization; and finally adding a polymerization stopper to completely terminate the polymerization reaction.

    摘要翻译： 重均分子量（Mw）为100,000〜3,000,000，Mw /数均分子量（Mn）比为1.30〜2.50的二烯系橡胶（A），Mw /峰顶分子量（Mp）比为0.70〜 1.30。 包含二烯橡胶（A）和Mw为2,000至90,0000的二烯橡胶（B）和/或用于橡胶的增油剂的橡胶组合物具有良好的加工性能，并且可以得到具有高拉伸强度和良好磨损性的橡胶硫化橡胶 抵抗性。 二烯橡胶（A）通过在烃溶剂中进行二烯单体的活性聚合而制备; 向聚合混合物中加入聚合阻聚剂，转化率为5〜98％，使聚合开始时存在的活性末端失活10〜90摩尔％ 最后加入聚合终止剂以完全终止聚合反应。

    Conjugated diene rubber, rubber composition, cross-linked rubber, and tire
    4.
    发明授权
    Conjugated diene rubber, rubber composition, cross-linked rubber, and tire 有权
    共轭二烯橡胶，橡胶组合物，交联橡胶和轮胎

    公开(公告)号：US08937130B2

    公开(公告)日：2015-01-20

    申请号：US13995422

    申请日：2011-12-14

    申请人： Tatsuo Sasajima ,  Takeshi Karato ,  Takeshi Sugimura

    发明人： Tatsuo Sasajima ,  Takeshi Karato ,  Takeshi Sugimura

    IPC分类号： B60C1/00 ,  C08F36/00 ,  C08F136/00 ,  C08F236/10 ,  C08C19/44 ,  C08L53/02 ,  C08K3/04

    CPC分类号： C08F236/10 ,  B60C1/00 ,  C08C19/44 ,  C08K3/04 ,  C08L53/025 ,  C08L15/00

    摘要： A conjugated diene rubber of the present invention is prepared from conjugated diene polymer chains, wherein the conjugated diene polymer chains each has an active end at one end and an isoprene block at least at the other end, the isoprene block contains 70 wt % or more isoprene monomer units, and the active ends of at least part of the conjugated diene polymer chains are modified with a compound having a >C═O group as a functional group. This provides (i) a tire that has an excellent strength, excellent low-heat buildup property, and excellent wet grip property and (ii) a rubber composition and a conjugated diene rubber that are suitably used to produce the tire.

    摘要翻译： 本发明的共轭二烯橡胶由共轭二烯聚合物链制备，其中共轭二烯聚合物链各自在一端具有活性末端，至少在另一端具有异戊二烯嵌段，异戊二烯嵌段含有70重量％以上 异戊二烯单体单元，并且至少部分共轭二烯聚合物链的活性末端用具有> C = O基团的化合物作为官能团改性。 这提供了（i）具有优异强度，优异的低热积聚性和优良的湿抓地性的轮胎，和（ii）适合用于制造轮胎的橡胶组合物和共轭二烯橡胶。

    Silica-loaded granular rubber and process for producing the same
    5.
    发明授权
    Silica-loaded granular rubber and process for producing the same 失效
    二氧化硅颗粒状橡胶及其制造方法

    公开(公告)号：US07625971B2

    公开(公告)日：2009-12-01

    申请号：US10568393

    申请日：2004-08-19

    申请人： Shinji Tokunaga ,  Tsunetoshi Sugimura ,  Kazutaka Watanabe ,  Osamu Yatabe ,  Takeshi Karato ,  Takahiko Fukahori ,  Yoshihiro Chino

    发明人： Shinji Tokunaga ,  Tsunetoshi Sugimura ,  Kazutaka Watanabe ,  Osamu Yatabe ,  Takeshi Karato ,  Takahiko Fukahori ,  Yoshihiro Chino

    IPC分类号： C08K3/36 ,  C08J3/16 ,  C08C1/14

    CPC分类号： C08J3/12 ,  B01J2/10 ,  C08J3/128 ,  C08J2321/00 ,  C08J2383/04 ,  C08K3/36 ,  Y10T428/2982 ,  C08L21/00

    摘要： Disclosed are silica-filled rubber granules comprised of a cocoagulation product of rubber and silica, which are extremely less powdery and excellent in handling and kneading, as well as an industrially advantageous process for producing same. The silica-filled rubber granules of the present invention are dried granules of a cocoagulation product of rubber and silica particles, which are characterized in that an average particle diameter (D50) in terms of the sieve analysis is 300˜3000 μm and the weight ratio of the granules within the range of D50±(D50×0.5) is at least 50% by weight. The silica-filled rubber granules are produced by supplying a cake of a cocoagulation product of silica and rubber having a water content of 40˜80% by weight to a drier provided with an indirect-heating type container having stirring wing blades, and then drying the cake while stirring it with the stirring wing blade.

    摘要翻译： 公开了由橡胶和二氧化硅的可凝固产物组成的二氧化硅填充的橡胶颗粒，其粉末非常少，处理和捏合性优异，以及其工业上有利的制备方法。 本发明的二氧化硅填充橡胶颗粒是橡胶和二氧化硅颗粒的可凝固产物的干燥颗粒，其特征在于，筛分分析中的平均粒径（D50）为300〜3000μm，重量比 的颗粒在D50±（D50x0.5）的范围内至少为50重量％。 二氧化硅填充的橡胶颗粒通过将具有40-80重量％水含量的二氧化硅和橡胶的可凝固产物的饼块供给到具有搅拌翼片的间接加热型容器的干燥器中，然后干燥 在搅拌翼片的同时搅拌它。

    Diene rubber composition and process for producing the same
    8.
    发明授权
    Diene rubber composition and process for producing the same 有权
    二烯橡胶组合物及其制备方法

    公开(公告)号：US07619028B2

    公开(公告)日：2009-11-17

    申请号：US10543541

    申请日：2004-01-30

    申请人： Kazutake Watanabe ,  Osamu Yatabe ,  Takeshi Karato ,  Yoshihiro Chino ,  Takahiko Fukahori

    发明人： Kazutake Watanabe ,  Osamu Yatabe ,  Takeshi Karato ,  Yoshihiro Chino ,  Takahiko Fukahori

    IPC分类号： C08K3/36 ,  C08J3/16

    CPC分类号： C08K3/36 ,  B60C1/00 ,  B60C1/0016 ,  B60C1/0025 ,  B60C15/06 ,  B60C2009/0021 ,  C08J3/215 ,  C08J2321/00 ,  C08L21/00 ,  C08L101/02 ,  C08L2666/02

    摘要： The present invention is to provide a diene rubber composition and a cross-linked diene rubber thereof excellent in tensile strength, wear resistance and processability, keeping compatibility of both good fuel efficiency and high gripping property, and a production method thereof. What is characterized in the composition is that the composition is comprised of 100 parts by weight of a diene rubber having a molecular weight distribution expressed in terms of the ratio of the weight-average molecular weight to the number-average molecular weight of 1.1 to 30, 20 to 200 parts by weight of silica and a cationic polymer, and that a toluene-insoluble rubber content per gram of the silica within the range from 0.2 to 1 g, and diene cross-linked rubber thereof. What is characterized in the production method is that the method comprises steps of allowing rubber latex stabilized by an anionic emulsifying agent to react with an aqueous suspension of silica containing a cationic polymer and effecting co-coagulation of rubber in the rubber latex with the silica in the aqueous suspension within a specific pH range.

    摘要翻译： 本发明提供一种二烯橡胶组合物及其抗拉强度，耐磨性和加工性优异的交联二烯橡胶，兼具良好的燃料效率和高夹持性的兼容性及其制造方法。 组合物的特征在于该组合物由100重量份的二烯橡胶组成，二烯橡胶的分子量分布以重均分子量与数均分子量的比率表示为1.1至30 ，20〜200重量份的二氧化硅和阳离子性聚合物，每克二氧化硅的甲苯不溶性橡胶含量在0.2〜1g的范围内，和二烯交联橡胶。 制造方法的特征在于，该方法包括以下步骤：使由阴离子乳化剂稳定的橡胶胶乳与含有阳离子聚合物的二氧化硅水溶液悬浮液反应，并使橡胶胶乳中的橡胶与二氧化硅共混 水性悬浮液在特定pH范围内。

    Comjugated Diene Rubber Composition, Process For Producing The Same And Rubber Vulcanizate
    9.
    发明申请
    Comjugated Diene Rubber Composition, Process For Producing The Same And Rubber Vulcanizate 有权
    共轭二烯橡胶组合物，生产方法和橡胶硫化橡胶

    公开(公告)号：US20080275184A1

    公开(公告)日：2008-11-06

    申请号：US10570025

    申请日：2004-09-01

    申请人： Takeshi Karato ,  Masao Nakamura ,  Koichi Endo

    发明人： Takeshi Karato ,  Masao Nakamura ,  Koichi Endo

    IPC分类号： C08L9/00

    CPC分类号： C08L19/006 ,  B60C1/00 ,  B60C1/0016 ,  C07D405/12 ,  C07D417/06 ,  C07D417/14 ,  C07D513/04 ,  C08L21/00 ,  C08L83/10 ,  C08L2666/08 ,  C08L2666/04

    摘要： A conjugated diene rubber composition comprising (A) 5-95 wt. % of a conjugated diene rubber having a structure such that at least three conjugated diene polymer chains are bonded together through a specific polyorganosiloxane having groups containing alkylene glycol repeating units and (B) 95-5 wt. % of a conjugated diene rubber having reacted with a compound having in the molecule a functional group selected from >C═O, >C═S, amino, imino, epoxy, pyridyl, alkoxyl and halogeno. This rubber composition gives, when silica is incorporated therein, a vulcanizable rubber composition having good processability and giving a rubber vulcanizate exhibiting sufficiently reduced heat build up, and having good wet-grip property and good abrasion resistance.

    摘要翻译： 共轭二烯橡胶组合物，其包含（A）5-95重量％ 通过具有含有亚烷基二醇重复单元的基团的特定聚有机硅氧烷将至少三个共轭二烯聚合物链结合在一起的共轭二烯橡胶的％，（B）95-5重量％ 与分子中具有选自C-O，> C-S，氨基，亚氨基，环氧基，吡啶基，烷氧基和卤代的官能团的化合物反应的共轭二烯橡胶的％。 当将二氧化硅加入其中时，该橡胶组合物可提供具有良好加工性的可硫化橡胶组合物，并产生显示出充分降低的热积累的橡胶硫化橡胶，并且具有良好的湿抓地性和良好的耐磨性。

    Conjugated diene rubber, process for producing the same, and rubber composition
    10.
    发明授权
    Conjugated diene rubber, process for producing the same, and rubber composition 有权
    共轭二烯橡胶，其制备方法和橡胶组合物

    公开(公告)号：US07241842B2

    公开(公告)日：2007-07-10

    申请号：US10516070

    申请日：2003-06-02

    申请人： Masao Nakamura ,  Masaaki Komatsu ,  Kouji Shouya ,  Kiyonori Umetsu ,  Takeshi Karato ,  Takahiko Fukahori

    发明人： Masao Nakamura ,  Masaaki Komatsu ,  Kouji Shouya ,  Kiyonori Umetsu ,  Takeshi Karato ,  Takahiko Fukahori

    IPC分类号： C08C19/00 ,  C08F8/00

    CPC分类号： C08L15/00 ,  B60C1/00 ,  B60C1/0008 ,  B60C1/0016 ,  B60C1/0025 ,  C08C19/44 ,  C08G77/442 ,  C08K3/36 ,  C08L21/00 ,  C08L83/10 ,  C08L2666/08

    摘要： A conjugated diene rubber obtained by a process wherein active conjugated diene polymer chains each having an active metal at a polymer chain terminal, which have been obtained by polymerizing a conjugated diene monomer alone, or a conjugated diene monomer and an aromatic vinyl monomer with the aid of an organic active metal in an inert solvent, are allowed to react with a specific polyorganosiloxane capable of reacting with the active metal bonded to the polymer chain terminal. The conjugated diene rubber contains at least 5% by weight of a structure comprising at least three conjugated diene polymer chains bonded through a polyorganosiloxane. The conjugated diene rubber gives, when silica is incorporated therein, a rubber composition having good processability and giving a crosslinked rubber having reduced heat build-up, good wet grip performance and good abrasion resistance.

    摘要翻译： 通过以下方法获得的共轭二烯橡胶：其中通过单独聚合共轭二烯单体或共轭二烯单体和芳族乙烯基单体在聚合物链末端具有活性金属的活性共轭二烯聚合物链， 的惰性溶剂中的有机活性金属与能够与结合到聚合物链末端的活性金属反应的特定聚有机硅氧烷进行反应。 共轭二烯橡胶含有至少5重量％的包含通过聚有机硅氧烷键合的至少三个共轭二烯聚合物链的结构。 当掺入二氧化硅时，共轭二烯橡胶产生具有良好加工性的橡胶组合物，并提供具有降低的发热性，良好的湿抓地性能和良好耐磨性的交联橡胶。