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    Isoprene-butadiene diblock rubber
    1.
    发明授权
    Isoprene-butadiene diblock rubber 失效
    异戊二烯二嵌段橡胶

    公开(公告)号：US5612436A

    公开(公告)日：1997-03-18

    申请号：US524666

    申请日：1995-09-08

    申请人： Adel F. Halasa ,  Wen-Liang Hsu ,  David J. Zanzig ,  Paul H. Sandstrom ,  Laurie E. Austin

    发明人： Adel F. Halasa ,  Wen-Liang Hsu ,  David J. Zanzig ,  Paul H. Sandstrom ,  Laurie E. Austin

    IPC分类号： B60C1/00 ,  B23P6/00 ,  C08F297/02 ,  C08F236/00

    CPC分类号： C08F297/02 ,  B23P6/00

    摘要： The subject invention discloses an isoprene-butadiene diblock rubber which is particularly valuable for use in making treads for tires which have improved wear characteristics without compromising traction characteristics or rolling resistance. Said isoprene-butadiene diblock rubber is comprised of (1) a first block which is comprised of repeat units which are derived from 1,3-butadiene and (2) a second block which is comprised of repeat units which are derived from both 1,3-butadiene and isoprene, wherein the repeat units derived from isoprene and 1,3-butadiene in the second block are in an essentially random order, wherein the diblock rubber has a glass transition temperature which is within the range of about -100.degree. C. to about -70.degree. C., and wherein the diblock rubber has a Mooney viscosity which is within the range of about 50 to about 140. In cases where the isoprene-butadiene diblock rubber of this invention is employed in automobile tires it will preferably have a second glass transition temperature which is within the range of about -50.degree. C. to about 0.degree. C. The Mooney viscosity will preferably be within the range of about 80 to about 135 and in the case of oil extended polymers will more preferably be within the range of about 100 to about 130 before oil extension.

    摘要翻译： 本发明公开了一种异戊二烯 - 丁二烯二嵌段橡胶，其特别有价值，用于制造具有改进的磨损特性而不损害牵引特性或滚动阻力的轮胎胎面。 所述异戊二烯 - 丁二烯二嵌段橡胶包括（1）由1,3-丁二烯衍生的重复单元组成的第一嵌段和（2）由重复单元组成的第二嵌段， 3-丁二烯和异戊二烯，其中在第二嵌段中衍生自异戊二烯和1,3-丁二烯的重复单元基本上是无规顺序，其中二嵌段橡胶的玻璃化转变温度在约-100℃的范围内 至约-70℃，并且其中二嵌段橡胶的门尼粘度在约50至约140的范围内。在本发明的异戊二烯 - 丁二烯二嵌段橡胶用于汽车轮胎的情况下，其优选 具有在约-50℃至约0℃的范围内的第二玻璃化转变温度。门尼粘度优选在约80至约135的范围内，并且在油延伸聚合物的情况下更优选 在t内 在油延伸之前，其范围约为100至约130。

    Tire tread containing 3.4-polyisoprene rubber
    2.
    发明授权
    Tire tread containing 3.4-polyisoprene rubber 失效
    轮胎胎面含有3.4聚异戊二烯橡胶

    公开(公告)号：US5627237A

    公开(公告)日：1997-05-06

    申请号：US642180

    申请日：1996-05-06

    申请人： Adel F. Halasa ,  Wen-Liang Hsu ,  David J. Zanzig ,  Gerald L. Allen ,  Laurie E. Austin

    发明人： Adel F. Halasa ,  Wen-Liang Hsu ,  David J. Zanzig ,  Gerald L. Allen ,  Laurie E. Austin

    IPC分类号： B60C1/00 ,  C08J3/24 ,  C08L7/00 ,  C08L9/00 ,  C08L9/06 ,  C08L21/00 ,  B60C9/02

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

    摘要： This invention reveals a pneumatic tire having an outer circumferential tread wherein said tread is a sulfur-cured rubber composition comprised of, based on 100 parts by weight of rubber, (1) from about 5 to about 50 parts of 3,4-polyisoprene rubber, wherein said 3,4-polyisoprene rubber has (a) a 3,4-isomer content of from 75 percent to 95 percent, (b) a 1,2-isomer content of from 5 percent to 25 percent, (c) a glass transition temperature from 0.degree. to 25.degree. C. and (d) a number average molecular weight which is within the range of 30,000 to 180,000; and (2) from about 50 to about 95 parts of a rubbery polymer which is co-curable with the 3,4-polyisoprene rubber. The subject invention further discloses a pneumatic tire having an outer circumferential tread wherein said tread is a sulfur-cured rubber composition comprised of, based on 100 parts by weight of rubber, (1) from about 20 to about 60 parts of natural rubber, (2) from about 5 to about 30 parts of high cis-1,4-polybutadiene rubber, (3) from about 10 to about 50 parts of styrene-butadiene rubber, and (4) from about 5 to about 30 parts of 3,4-polyisoprene rubber, wherein the 3,4-polyisoprene rubber has (a) a 3,4-isomer content of from 75 percent to 95 percent, (b) a 1,2-isomer content of from 5 percent to 25 percent, (c) a glass transition temperature from 0.degree. to 25.degree. C. and (d) a number average molecular weight which is within the range of 30,000 to 180,000.

    摘要翻译： 本发明揭示了一种具有外圆周胎面的充气轮胎，其中所述胎面是硫化橡胶组合物，其基于100重量份的橡胶，（1）约5至约50重量份的3,4-聚异戊二烯橡胶 其中所述3,4-聚异戊二烯橡胶具有（a）75％至95％的3,4-异构体含量，（b）5％至25％的1,2-异构体含量，（c） 玻璃化转变温度为0〜25℃，（d）数均分子量在30,000〜180,000范围内; 和（2）约50至约95份可与3,4-聚异戊二烯橡胶共固化的橡胶状聚合物。 本发明还公开了一种具有外圆周胎面的充气轮胎，其中所述胎面是硫固橡胶组合物，其基于100重量份的橡胶，（1）约20至约60重量份的天然橡胶（ 2）约5至约30份高顺式-1,4-聚丁二烯橡胶，（3）约10至约50份苯乙烯 - 丁二烯橡胶，和（4）约5至约30份3， 4-聚异戊二烯橡胶，其中3,4-聚异戊二烯橡胶具有（a）75％至95％的3,4-异构体含量，（b）5％至25％的1,2-异构体含量， （c）0〜25℃的玻璃化转变温度，（d）数均分子量在30,000〜180,000的范围内。

    High performance blend for tire treads
    3.
    发明授权
    High performance blend for tire treads 失效
    高性能混合轮胎胎面

    公开(公告)号：US5534592A

    公开(公告)日：1996-07-09

    申请号：US531841

    申请日：1995-09-22

    申请人： Adel F. Halasa ,  Wen-Liang Hsu ,  David J. Zanzig ,  Paul H. Sandstrom ,  Steven K. Henning ,  Danielle Lucas

    发明人： Adel F. Halasa ,  Wen-Liang Hsu ,  David J. Zanzig ,  Paul H. Sandstrom ,  Steven K. Henning ,  Danielle Lucas

    IPC分类号： B60C1/00 ,  C08F2/38 ,  C08F2/44 ,  C08F4/48 ,  C08F36/00 ,  C08F36/04 ,  C08F36/06 ,  C08F136/06 ,  C08L9/00 ,  C08L21/00 ,  C08K5/54

    CPC分类号： C08F36/04 ,  C08F136/06 ,  C08L9/00 ,  C08K5/06 ,  C08K5/17 ,  Y10S152/905

    摘要： This invention reveals a high performance polybutadiene rubber blend comprised of (a) a first polybutadiene rubber, (b) a second polybutadiene rubber, and (c) a third polybutadiene rubber; wherein the first polybutadiene rubber, the second polybutadiene rubber, and the third polybutadiene rubber are selected from the group of consisting of super-high vinyl polybutadiene rubbers having a vinyl content which is within the range of 80 percent to 100 percent, high vinyl polybutadiene rubbers having a vinyl content which is within the range of 60 percent to 79 percent, medium vinyl polybutadiene rubbers having a vinyl content which is within the range of 35 percent to 59 percent, and low vinyl polybutadiene rubbers having a vinyl content which is within the range of 8 percent to 34 percent; wherein at least three members selected from the group consisting of super-high vinyl polybutadiene rubbers, high vinyl polybutadiene rubbers, medium vinyl polybutadiene rubbers, and low vinyl polybutadiene rubbers are included in the blend, wherein at least one of the polybutadiene rubbers in the blend has a vinyl content which is within 35 percentage points of the vinyl content of at least one other polybutadiene rubber in the blend, wherein the blend as a whole has a vinyl content of at least 40 percent, and wherein the blend contains at least 10 parts of the first polybutadiene rubber, at least 10 parts of the second polybutadiene rubber and at least 10 parts of the third polybutadiene rubber, based upon a total of 100 parts of rubber in the blend.

    摘要翻译： 本发明揭示了一种高性能聚丁二烯橡胶共混物，其包含（a）第一聚丁二烯橡胶，（b）第二聚丁二烯橡胶和（c）第三聚丁二烯橡胶; 其中第一聚丁二烯橡胶，第二聚丁二烯橡胶和第三聚丁二烯橡胶选自乙烯基含量在80％至100％范围内的超高乙烯基聚丁二烯橡胶，高乙烯基聚丁二烯橡胶 乙烯基含量在60％至79％的范围内，乙烯基含量在35％至59％的范围内的中等乙烯基聚丁二烯橡胶和乙烯基含量在该范围内的低乙烯基聚丁二烯橡胶 为8％至34％; 其中选自由超高乙烯基聚丁二烯橡胶，高乙烯基聚丁二烯橡胶，中乙烯基聚丁二烯橡胶和低乙烯基聚丁二烯橡胶组成的组中的至少三种组分包括在共混物中，其中混合物中的至少一种聚丁二烯橡胶 乙烯基含量在共混物中至少一种其它聚丁二烯橡胶的乙烯基含量的35个百分点以内，其中该共混物整体具有至少40％的乙烯基含量，并且其中该共混物含有至少10份 的第一聚丁二烯橡胶，至少10份第二聚丁二烯橡胶和至少10份第三聚丁二烯橡胶，基于共混物中的100份橡胶。

    Styrene-isoprene rubber for tire tread compounds
    5.
    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
    6.
    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。

    Tire with tread of elastomer composition
    10.
    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。