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    Sulfur cured rubber composition containing epoxidized natural rubber and silica filler
    3.
    发明授权
    Sulfur cured rubber composition containing epoxidized natural rubber and silica filler 失效
    硫化橡胶组合物含有环氧化天然橡胶和二氧化硅填料

    公开(公告)号：US5396940A

    公开(公告)日：1995-03-14

    申请号：US122082

    申请日：1993-09-17

    申请人： Thomas J. Segatta ,  Paul H. Sandstrom ,  John J. A. Verthe

    发明人： Thomas J. Segatta ,  Paul H. Sandstrom ,  John J. A. Verthe

    IPC分类号： C08J3/24 ,  B60C1/00 ,  C08K3/00 ,  C08K3/36 ,  C08K5/00 ,  C08K5/548 ,  C08L9/00 ,  C08L15/00 ,  C08L21/00 ,  C08K5/36

    CPC分类号： C08L15/00 ,  B60C1/0016 ,  C08L21/00 ,  C08L7/00 ,  C08L9/00 ,  C08L9/02 ,  C08L9/06 ,  Y10S152/905

    摘要： The present invention relates to a sulfur cured rubber composition particularly suited for use in tire treads and carcass ply compounds. The sulfur cured rubber composition is composed of, based on 100 parts by weight of rubber, from about 5 to 95 parts by weight of epoxidized rubber; from about 5 to 85 parts of a silica filler; from about 0.5 to 8.5 parts by weight of a silica coupling agent; and 95 to 5 parts by weight of a rubber selected from the group consisting of medium vinyl polybutadiene, styrene-butadiene rubber, synthetic cis-1,4-polyisoprene, synthetic 3,4-polyisoprene, natural rubber, cis-polybutadiene, styrene-isoprene rubber, styrene-isoprene-butadiene rubber, acrylonitrile-butadiene rubber and mixtures thereof.

    摘要翻译： 本发明涉及特别适用于轮胎胎面和胎体帘布层化合物的硫化橡胶组合物。 硫固化橡胶组合物由100重量份的橡胶组成，约5〜95重量份的环氧化橡胶; 约5至85份二氧化硅填料; 约0.5至8.5重量份的二氧化硅偶联剂; 和95〜5重量份选自中等乙烯基聚丁二烯，苯乙烯 - 丁二烯橡胶，合成顺式-1,4-聚异戊二烯，合成3,4-聚异戊二烯，天然橡胶，顺式聚丁二烯，苯乙烯 - 异戊二烯橡胶，苯乙烯 - 异戊二烯 - 丁二烯橡胶，丙烯腈 - 丁二烯橡胶及其混合物。

    Tire with tread of elastomer composition
    5.
    发明授权
    Tire with tread of elastomer composition 失效
    轮胎与弹性体组成的胎面

    公开(公告)号：US5504140A

    公开(公告)日：1996-04-02

    申请号：US315476

    申请日：1994-09-30

    申请人： David J. Zanzig ,  Paul H. Sandstrom ,  John J. A. Verthe ,  Raymond R. DiRossi ,  Gregory M. Holtzapple

    发明人： David J. Zanzig ,  Paul H. Sandstrom ,  John J. A. Verthe ,  Raymond R. DiRossi ,  Gregory M. Holtzapple

    IPC分类号： B60C1/00 ,  C08K3/00 ,  C08K3/04 ,  C08K3/36 ,  C08L7/00 ,  C08L9/00 ,  C08L9/06 ,  C08L21/00

    CPC分类号： C08L9/00 ,  B60C1/0016 ,  C08L9/06 ,  C08L7/00 ,  Y02T10/862

    摘要： Pneumatic rubber tire with a tread composed of a rubber blend of a base of at least two synthetic elastomers composed of (i) specialized isoprene/butadiene copolymer elastomer having a low Tg in a range of about -70.degree. to about -100.degree. C. and (ii) a diene based elastomer having a Tg in a range of about -5.degree. to about -30.degree. C. together with a minor amount of natural cis 1,4-polyisoprene rubber. Selection of the base of the said two synthetic elastomers having spaced apart, or spatially defined, Tg's of at least 40.degree. C. is an important feature of the tread rubber blend. Representative examples of contemplated elastomers with Tg's in a range of about -5.degree. to about -30.degree. C. are 3,4-polyisoprene elastomer, styrene/isoprene copolymer elastomer and high vinyl polybutadiene elastomers.In one aspect, the tread rubber blend is reinforced with reinforcing filler composed of carbon black or a combination of carbon black and silica accompanied by a coupling agent.

    摘要翻译： 具有胎面的气动橡胶轮胎，其由至少两种合成弹性体的基底的橡胶共混物组成，所述合成弹性体由（i）具有约-70℃至约-100℃范围内的低Tg的特殊异戊二烯/丁二烯共聚物弹性体组成。 和（ii）Tg在约-5℃至约-30℃范围内的二烯基弹性体以及少量天然顺式1,4-聚异戊二烯橡胶。 具有至少40℃的间隔或空间限定的Tg的所述两种合成弹性体的基底的选择是胎面橡胶共混物的重要特征。 具有Tg在约-5℃至约-30℃范围内的预期弹性体的代表性实例是3,4-聚异戊二烯弹性体，苯乙烯/异戊二烯共聚物弹性体和高乙烯基聚丁二烯弹性体。 在一个方面，胎面橡胶共混物用伴随着偶联剂的炭黑或炭黑和二氧化硅的组合的增强填料增强。

    Styrene-isoprene rubber for tire tread compounds
    6.
    发明授权
    Styrene-isoprene rubber for tire tread compounds 失效
    用于轮胎胎面胶的苯乙烯 - 异戊二烯橡胶

    公开(公告)号：US5552490A

    公开(公告)日：1996-09-03

    申请号：US439753

    申请日：1995-05-12

    申请人： David J. Zanzig ,  Paul H. Sandstrom ,  Joseph K. Hubbell ,  Wen-Liang Hsu ,  Adel F. Halasa ,  John J. A. Verthe

    发明人： David J. Zanzig ,  Paul H. Sandstrom ,  Joseph K. Hubbell ,  Wen-Liang Hsu ,  Adel F. Halasa ,  John J. A. Verthe

    IPC分类号： C08F2/06 ,  C08F4/48 ,  C08F236/10 ,  C08L9/06 ,  C08K3/36

    CPC分类号： C08F236/10 ,  Y10S152/905

    摘要： The subject invention relates to a technique for synthesizing rubbery copolymers of styrene and isoprene. These rubbery copolymers exhibit an excellent combination of properties for utilization in tire tread rubber compounds. By utilizing these styrene-isoprene rubbers in tire treads, tires having improved wet skid resistance can be built without sacrificing rolling resistance or tread wear characteristics. This invention more specifically discloses a process for the synthesis of styrene-isoprene rubbers which exhibit essentially a single glass transition temperature and which are particularly useful in tire tread rubber compounds, said process comprising copolymerizing a monomer mixture containing from about 2 weight percent to about 15 weight percent styrene monomer and from about 85 weight percent to about 98 weight percent isoprene monomer in an organic solvent in the presence of a catalyst system which is comprised of (a) a lithium initiator and (b) a modifier having the structural formula: ##STR1## wherein n represents an integer within the range of 3 to 6, wherein R represents an alkyl group containing from 1 to about 10 carbon atoms, and wherein the molar ratio of the modifier to the lithium initiator is within the range of 2:1 to 40:1.

    摘要翻译： 本发明涉及一种合成苯乙烯和异戊二烯橡胶共聚物的技术。 这些橡胶状共聚物在轮胎胎面橡胶化合物中表现出优异的性能组合。 通过在轮胎胎面中使用这些苯乙烯 - 异戊二烯橡胶，可以在不牺牲滚动阻力或胎面磨损特性的情况下构建具有改善的抗湿滑性的轮胎。 本发明更具体地公开了一种用于合成苯乙烯 - 异戊二烯橡胶的方法，其表现出基本上单一的玻璃化转变温度，并且其特别可用于轮胎胎面橡胶化合物，所述方法包括使包含约2重量％至约15 重量百分比的苯乙烯单体和约85重量％至约98重量％的异戊二烯单体在有机溶剂中，在由（a）锂引发剂和（b）具有以下结构式的改性剂组成的催化剂体系的存在下， 其中n表示3〜6的整数，其中R表示含有1〜约10个碳原子的烷基，其中改性剂与锂引发剂的摩尔比在2:1的范围内 至40：1。

    Process for synthesizing styrene-isoprene rubber
    7.
    发明授权
    Process for synthesizing styrene-isoprene rubber 失效
    合成苯乙烯 - 异戊二烯橡胶的方法

    公开(公告)号：US5470929A

    公开(公告)日：1995-11-28

    申请号：US300907

    申请日：1994-09-06

    申请人： David J. Zanzig ,  Paul H. Sandstrom ,  Joseph K. Hubbell ,  Wen-Liang Hsu ,  Adel F. Halasa ,  John J. A. Verthe

    发明人： David J. Zanzig ,  Paul H. Sandstrom ,  Joseph K. Hubbell ,  Wen-Liang Hsu ,  Adel F. Halasa ,  John J. A. Verthe

    IPC分类号： C08F2/06 ,  C08F4/48 ,  C08F236/10

    CPC分类号： C08F236/10 ,  Y10S152/905

    摘要： The subject invention relates to a technique for synthesizing rubbery copolymers of styrene and isoprene. These rubbery copolymers exhibit an excellent combination of properties for utilization in tire tread rubber compounds. By utilizing these styrene-isoprene rubbers in tire treads, tires having improved wet skid resistance can be built without sacrificing rolling resistance or tread wear characteristics. This invention more specifically discloses a process for the synthesis of styrene-isoprene rubbers which exhibit essentially a single glass transition temperature and which are particularly useful in tire tread rubber compounds, said process comprising copolymerizing a monomer mixture containing from about 2 weight percent to about 15 weight percent styrene monomer and from about 85 weight percent to about 98 weight percent isoprene monomer in an organic solvent in the presence of a catalyst system which is comprised of (a) a lithium initiator and (b) a modifier having the structural formula: ##STR1## wherein n represents an integer within the range of 3 to 6, wherein R represents an alkyl group containing from 1 to about 10 carbon atoms, and wherein the molar ratio of the modifier to the lithium initiator is within the range of 2:1 to 40:1.

    摘要翻译： 本发明涉及一种合成苯乙烯和异戊二烯橡胶共聚物的技术。 这些橡胶状共聚物在轮胎胎面橡胶化合物中表现出优异的性能组合。 通过在轮胎胎面中使用这些苯乙烯 - 异戊二烯橡胶，可以在不牺牲滚动阻力或胎面磨损特性的情况下构建具有改善的抗湿滑性的轮胎。 本发明更具体地公开了一种用于合成苯乙烯 - 异戊二烯橡胶的方法，其表现出基本上单一的玻璃化转变温度，并且其特别可用于轮胎胎面橡胶化合物，所述方法包括使包含约2重量％至约15 重量百分比的苯乙烯单体和约85重量％至约98重量％的异戊二烯单体在有机溶剂中，在由（a）锂引发剂和（b）具有以下结构式的改性剂组成的催化剂体系的存在下， 其中n表示3〜6的整数，其中R表示含有1〜约10个碳原子的烷基，其中改性剂与锂引发剂的摩尔比在2:1的范围内 至40：1。