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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。
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公开(公告)号：US5620939A
公开(公告)日：1997-04-15
申请号：US627792
申请日：1996-04-01
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
CPC分类号： C08F36/04 , C08F136/06 , C08L9/00 , C08K5/06 , C08K5/17 , Y10S152/905
摘要： This invention reveals an initiator system which is comprised of (a) a lithium initiator, (b) a sodium alkoxide, and (c) a polar modifier; wherein the molar ratio of the sodium alkoxide to the polar modifier is within the range of about 0.1:1 to about 10:1; and wherein the molar ratio of the sodium alkoxide to the lithium initiator is within the range of about 0.01:1 to about 20:1.
摘要翻译： 本发明揭示了引发剂体系，其包括（a）锂引发剂，（b）醇钠，和（c）极性改性剂; 其中醇钠与极性改性剂的摩尔比在约0.1:1至约10:1的范围内; 并且其中所述醇钠与所述锂引发剂的摩尔比在约0.01:1至约20:1的范围内。
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公开(公告)号：US5612436A
公开(公告)日：1997-03-18
申请号：US524666
申请日：1995-09-08
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。
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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。
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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。
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公开(公告)号：US5627237A
公开(公告)日：1997-05-06
申请号：US642180
申请日：1996-05-06
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。
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7.发明授权
公开(公告)号：US5356997A
公开(公告)日：1994-10-18
申请号：US968916
申请日：1992-10-30
IPC分类号： C08F4/60 , C08F4/70 , C08F36/08 , C08F136/08 , C08L9/00
CPC分类号： C08F136/08 , C08F2410/01 , Y10S152/905
摘要： Strain crystallizable 3,4-polyisoprene having a 3,4-microstructure content which is within the range of about 65% to about 85%, a cis-1,4-microstructure content which is within the range of about 15% to about 35%, and essentially no trans-1,4-microstructure or 1,2-microstructure can be synthesized in organic solvents to quantitative yields after short polymerization times by utilizing the catalyst systems of this invention. This invention specifically discloses a process for the synthesis of 3,4-polyisoprene which comprises polymerizing isoprene monomer in an organic solvent at a temperatIre which is within the range of about -10.degree. C. to about 100.degree. C. in the presence of a catalyst system which is comprised of (a) an organoiron compound which is soluble in the organic solvent, wherein the iron in the organoiron compound is in the +3 oxidation state, (b) a partially hydrolyzed organoaluminum compound which was prepared by adding a protonic compound selected from the group consisting of water, alcohols and carboxylic acids to the organoaluminum compound, and (c) a chelating aromatic amine; wherein the molar ratio of the chelating amine to the organoiron compound is within the range of about 0.1:1 to about 1:1, wherein the molar ratio of the organoaluminum compound to the organoiron compound is within the range of about 5:1 to about 200:1, and wherein the molar ratio of the protonic compound to the organoaluminum compound is within the range of about 0,001:1 to about 0.2:1.
摘要翻译： 具有3,4-微结构含量在约65％至约85％范围内的应变可结晶的3,4-聚异戊二烯，顺式-1,4-微结构含量在约15％至约35的范围内 通过利用本发明的催化剂体系，在短时间聚合时间之后，可以在有机溶剂中基本上没有反式-1,4-微结构或1,2-微结构合成定量产率。 本发明具体公开了一种合成3,4-聚异戊二烯的方法，该方法包括在有机溶剂中将异戊二烯单体在约-10℃至约100℃范围内的温度下聚合， 催化剂体系，其由（a）可溶于有机溶剂的有机铁化合物组成，其中有机铁化合物中的铁处于+3氧化态，（b）部分水解的有机铝化合物，其通过加入质子 选自水，醇和羧酸的化合物的有机铝化合物的化合物，和（c）螯合芳族胺; 其中螯合胺与有机铁化合物的摩尔比在约0.1:1至约1:1的范围内，其中有机铝化合物与有机铁化合物的摩尔比在约5:1至约 200：1，其中质子化合物与有机铝化合物的摩尔比在约0.001:1至约0.2:1的范围内。
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公开(公告)号：US5616653A
公开(公告)日：1997-04-01
申请号：US681568
申请日：1996-07-29
申请人： Wen-Liang Hsu , Adel F. Halasa , Barry A. Matrana , Scott M. Christian , Laurie E. Austin , Bill B. Gross
发明人： Wen-Liang Hsu , Adel F. Halasa , Barry A. Matrana , Scott M. Christian , Laurie E. Austin , Bill B. Gross
IPC分类号： B60C1/00 , C08C19/44 , C08F236/10 , C08F8/42
CPC分类号： C08F236/10 , B60C1/0016 , C08C19/44 , Y10T152/10495
摘要： The subject invention discloses a process for preparing a coupled styrene-isoprene-butadiene rubber which is particularly valuable for use in making automobile tire tread rubber compounds which comprises the steps of (1) solution terpolymerizing in an organic solvent from about 5 weight percent to about 40 weight percent styrene, from about 1 weight percent to about 10 weight percent isoprene, and from about 50 weight percent to about 94 weight percent 1,3-butadiene, based on total monomers, to a conversion of at least about 90% to produce a living styrene-isoprene-butadiene polymer, wherein the terpolymerization is initiated with an organolithium compound, and wherein the terpolymerization is conducted in the presence of a polar modifier at a molar ratio of the polar modifier to the organolithium compound, which is within the range of about 0.5:1 to about 5:1, and wherein the terpolymerization is conducted at a temperature which is within the range of about 20.degree. C. to about 150.degree. C.; and (2) coupling the living styrene-isoprene-butadiene polymer with a coupling agent selected from the group consisting of tin tetrachloride and silicon tetrachloride, wherein the molar ratio of the coupling agent to the organolithium compound is within the range of about 1:3 to 1:6.
摘要翻译： 本发明公开了一种制备偶联的苯乙烯 - 异戊二烯 - 丁二烯橡胶的方法，其特别有价值的用于制造汽车轮胎胎面橡胶化合物，其包括以下步骤：（1）在约5重量％至约5重量％的有机溶剂中三元聚合 40重量％的苯乙烯，约1重量％至约10重量％的异戊二烯和约50重量％至约94重量％的1,3-丁二烯（基于总单体）至至少约90重量％的转化率 活性苯乙烯 - 异戊二烯 - 丁二烯聚合物，其中三元共聚有机锂化合物引发，并且其中三元共聚在极性改性剂存在下以极性改性剂与有机锂化合物的摩尔比进行，其浓度范围 为约0.5:1至约5:1，并且其中三元聚合在约20℃至约150℃的温度下进行 C。; 和（2）使活性苯乙烯 - 异戊二烯 - 丁二烯聚合物与选自四氯化锡和四氯化硅的偶联剂偶合，其中偶联剂与有机锂化合物的摩尔比在约1:3的范围内 至1：6。
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公开(公告)号：US5448003A
公开(公告)日：1995-09-05
申请号：US287397
申请日：1994-08-08
申请人： Wen-Liang Hsu , Adel F. Halasa , Barry A. Matrana
发明人： Wen-Liang Hsu , Adel F. Halasa , Barry A. Matrana
IPC分类号： C08F236/10 , C08F4/48 , C08F36/04 , C08F136/08
CPC分类号： C08F236/10
摘要： It has been unexpectedly discovered that various compounds, such as alkyl tetrahydrofurfuryl ethers, can be used to modify anionic polymerizations of conjugated diene monomers. These modifiers can be used to polymerize isoprene monomer into high 3,4-polyisoprene at excellent polymerization rates. This is in contrast to the modifiers such as tetramethylethylene diamine which are typically used to modify such polymerizations. This invention more specifically discloses a process for the synthesis of 3,4-polyisoprene which comprises polymerizing isoprene monomer in an organic solvent in the presence of a catalyst system which is comprised of (a) a lithium initiator and (b) an alkyltetrahydrofurfuryl ether modifier, wherein the alkyl group in the alkyltetrahydrofurfuryl ether modifier contains from 6 to about 10 carbon atoms. In the practice of this invention, the utilization of alkyltetrahydrofurfuryl ethers having alkyl groups which contain from 6 to 10 carbon atoms, such as hexyltetrahydrofurfuryl ether, is highly preferred since their use does not results in the creation of odor problems.
摘要翻译： 已经意外地发现各种化合物，例如烷基四氢糠基醚，可用于改变共轭二烯单体的阴离子聚合。 这些改性剂可以用于以高聚合速率将异戊二烯单体聚合成高的3,4-聚异戊二烯。 这与通常用于改变这种聚合的改性剂如四甲基乙二胺形成对比。 本发明更具体地公开了一种用于合成3,4-聚异戊二烯的方法，其包括在催化剂体系存在下在有机溶剂中聚合异戊二烯单体，所述催化剂体系包括（a）锂引发剂和（b）烷基四氢糠醚改性剂 其中烷基四氢糠醚改性剂中的烷基含有6至约10个碳原子。 在本发明的实践中，非常优选利用具有6至10个碳原子的烷基的烷基四氢糠醚，例如己基四氢糠醚，因为它们的用途不会导致产生气味问题。
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公开(公告)号：US5321085A
公开(公告)日：1994-06-14
申请号：US869682
申请日：1992-04-16
CPC分类号： C08G18/0838 , C08L21/00 , C08L9/00
摘要： It is desirable to increase the modulus of rubbers utilized in a wide variety of applications. This invention discloses a technique for preparing high modulus rubber compositions. By utilizing this technique, high modulus can be attained without sacrificing other properties, such as hysteresis. The subject invention more specifically relates to a process for preparing a high modulus rubber composition which comprises: (1) polymerizing at least one diisocyanate with at least one member selected from the group consisting of diols and diamines in a polymer cement of a rubbery elastomer under conditions which result in the formation of a rubber cement having the crystalline polymer dispersed therein; and (2) recovering the high modulus rubber composition from the rubber cement.
摘要翻译： 期望增加在各种应用中使用的橡胶的模量。 本发明公开了一种制备高模量橡胶组合物的技术。 通过利用该技术，可以获得高模量而不牺牲其他性能，如滞后。 本发明更具体地涉及一种制备高模量橡胶组合物的方法，其包括：（1）在橡胶弹性体的聚合物粘合剂中将至少一种二异氰酸酯与至少一种选自二醇和二胺的物质聚合， 导致其中分散有结晶聚合物的橡胶泥的形成的条件; 和（2）从橡胶水泥中回收高模量橡胶组合物。
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