公开(公告)号：US4812527A

公开(公告)日：1989-03-14

申请号：US112989

申请日：1987-10-27

申请人： Hiroyoshi Takao ,  Nabuyuki Yoshida ,  Akio Imai ,  Mitsuji Tsuji ,  Yuichi Saito

发明人： Hiroyoshi Takao ,  Nabuyuki Yoshida ,  Akio Imai ,  Mitsuji Tsuji ,  Yuichi Saito

IPC分类号： B60C1/00 ,  C08F297/04 ,  C08L53/00 ,  C08L53/02

CPC分类号： C08F297/044 ,  B60C1/0016 ,  Y10S152/905

摘要： A rubber composition suitable for tire treads having well-balanced excellent wet skid characteristic, ice skid characteristic and rolling characteristic, and an excellent processability, which comprises a rubber component containing at least 20% by weight of a block copolymer consisting essentially of a block A and a block B, obtained by conducting polymerization of an aromatic vinyl compound and a conjugated diene compound in a hydrocarbon solvent in the presence of an organolithium initiator and modifying with a coupling agent, and satisfying the following conditions (A) to (E);(A) the block A having a content of an aromatic vinyl compound of at most 5% by weight and a content of 1,2-bonds in the conjugated diene component of at least 10% by weight,(B) the block B having a content of an aromatic vinyl compound of 25 to 50% by weight and a content of 1,2-bonds in the conjugated diene component of at least 10% by weight,(C) a content of the block A in the block copolymer being from 20 to 80% by weight,(D) a content of the aromatic vinyl compound in the block copolymer being from 5 to 30% by weight and a content of 1,2-bonds in the conjugated diene component of the block copolymer being from 20 to 60% by weight, and(E) at least 40% by weight of the polymer chains of the block copolymer being a branched polymer formed by modification with a dicarboxylic acid diester.

摘要翻译： 一种适用于轮胎胎面的橡胶组合物，具有平衡优异的湿滑特性，防滑特性和滚动特性，以及优异的加工性，其包含含有至少20重量％的基本上由块A 和通过在有机锂引发剂的存在下在烃溶剂中进行芳族乙烯基化合物和共轭二烯化合物的聚合而获得的嵌段B，并且用偶联剂进行改性，并满足以下条件（A）〜（E）; （A）具有至多5重量％的芳族乙烯基化合物含量的嵌段A和共轭二烯组分中的1,2-键的含量为至少10重量％，（B）嵌段B具有 芳香族乙烯基化合物的含量为25〜50重量％，共轭二烯成分中的1,2-键含量为10重量％以上，（C）嵌段共聚物中的嵌段A的含量为 20〜80重量％，（D）嵌段共聚物中芳香族乙烯基化合物的含量为5〜30重量％，嵌段共聚物的共轭二烯成分中的1,2-键含量为 20至60重量％，和（E）至少40重量％的嵌段共聚物的聚合物链是通过用二羧酸二酯改性形成的支化聚合物。

公开(公告)号：US4918142A

公开(公告)日：1990-04-17

申请号：US320836

申请日：1989-03-08

申请人： Yuichi Saito ,  Takuzoh Yabuta ,  Hiroyoshi Takao ,  Akio Imai ,  Mitsuji Tsuji

发明人： Yuichi Saito ,  Takuzoh Yabuta ,  Hiroyoshi Takao ,  Akio Imai ,  Mitsuji Tsuji

IPC分类号： B29D30/52 ,  B60C1/00 ,  C08F297/04 ,  C08L21/00 ,  C08L53/00 ,  C08L53/02

CPC分类号： C08L21/00 ,  B60C1/0016 ,  C08F297/044 ,  C08L53/02 ,  C08L9/06

摘要： A rubber composition suitable for tire treads having well-balanced excellent steering stability in cornering, wet skid characteristic, ice skid characteristic and rolling characteristic, and an excellent processability, which comprises a rubber component containing a block copolymer consisting essentially of a block A and a block B, obtained by conducting polymerization of an aromatic vinyl compound and a conjugated diene compound in a hydrocarbon solvent in the presence of an organolithium initiator and modifying with a coupling agent, and satisfying the following conditions (A) to (E);(A) the block A having a content of an aromatic vinyl compound of 5 to 29% by weight and a content of 1,2-bonds in the conjugated diene component of 25 to 55% by weight,(B) the block B having a content of an aromatic vinyl compound of 35 to 60% by weight and a content of 1,2-bonds in the conjugated diene component of 20 to 70% by weight,(C) the content of the block A in the block copolymer being from 20 to 80% by weight,(D) the average content of the aromatic vinyl compound in the block copolymer being from 20 to 40% by weight and the average content of 1,2-bonds in the conjugated diene component of the block copolymer being from 20 to 60% by weight, and(E) at least 40% by weight of the polymer chains of the block copolymer being a branched polymer formed by modification with a trifunctional or tetrafunctional coupling agent.

摘要翻译： 一种适用于轮胎胎面的橡胶组合物，其具有平衡优异的转弯转向稳定性，防滑特性，防滑特性和滚动特性以及优异的加工性能，其包括含有基本上由块A和 嵌段B，其通过在有机锂引发剂的存在下在烃溶剂中进行芳族乙烯基化合物和共轭二烯化合物的聚合而获得，并且用偶联剂进行改性，并满足以下条件（A）至（E）; （A）具有5〜29重量％的芳族乙烯基化合物的含量和共轭二烯组分中的1,2-键含量为25〜55重量％的嵌段A，（B）嵌段B具有 35〜60重量％的芳香族乙烯基化合物的含量和共轭二烯成分中的1,2-键含量为20〜70重量％，（C）嵌段共聚物中嵌段A的含量为 20〜80重量％，（D）嵌段共聚物中芳族乙烯基化合物的平均含量为20〜40重量％，嵌段共聚物的共轭二烯成分中的1,2-键的平均含量 为20〜60重量％，（E）嵌段共聚物的聚合物链的至少40重量％为通过三官能或四官能偶合剂改性形成的支链聚合物。

公开(公告)号：US4957976A

公开(公告)日：1990-09-18

申请号：US415380

申请日：1989-09-29

申请人： Hiroyoshi Takao ,  Akio Imai ,  Tomoski Seki ,  Mitsuji Tsuji

发明人： Hiroyoshi Takao ,  Akio Imai ,  Tomoski Seki ,  Mitsuji Tsuji

IPC分类号： C08C19/42

CPC分类号： C08C19/42

摘要： A process for preparing modified diene polymer rubbers having an increased impact resilience and a reduced hardness at low temperatures and useful as rubber materials for automobile tires and other industries which comprises producing an alkali metal-containing conjugated diene polymer, and reacting the alkali metal-containing polymer with a modifier selected from the group consisting of a nitro compound, a phosphoryl chloride compound of the formula: ##STR1## wherein R.sup.1 to R.sup.4 are independently an alkyl group, and an aminosilane compound of the formula: ##STR2## wherein R.sup.5 to R.sup.7 are independently an alkyl group or an alkoxyl group, R.sup.8 and R.sup.9 are independently an alkyl group, and n is an integer, said alkali metal-containing diene polymer being prepared by a living anionic polymerization using an alkali metal-based catalyst or by an addition reaction of a diene polymer having conjugated diene units and an alkali metal-based catalyst in a hydrocarbon solvent. The modified diene polymers can be incorporated with usual rubber additives to provide rubber compositions for various purposes, and the cured products shown an increased impact resilience and a reduced hardness at low temperatures.

摘要翻译： 一种制备改性二烯聚合物橡胶的方法，该改性二烯聚合物橡胶在低温下具有增加的冲击弹性和降低的硬度，并且可用作汽车轮胎和其它工业的橡胶材料，其包括制备含碱金属的共轭二烯聚合物，并使含碱金属的 聚合物，其选自硝基化合物，下式的磷酰氯化合物：其中R 1至R 4独立地为烷基，并且具有下式的氨基硅烷化合物：（IMAGE）（ 2）其中R5至R7独立地为烷基或烷氧基，R8和R9独立地为烷基，n为整数，所述含碱金属的二烯聚合物通过使用碱金属 - 或通过在烃溶剂中具有共轭二烯单元的二烯聚合物和碱金属类催化剂的加成反应。 改性二烯聚合物可与通常的橡胶添加剂结合以提供用于各种目的的橡胶组合物，并且固化产物显示了在低温下增加的冲击弹性和降低的硬度。

公开(公告)号：US5037891A

公开(公告)日：1991-08-06

申请号：US353756

申请日：1989-05-18

申请人： Hiroyoshi Takao ,  Akio Imai ,  Mitsuji Tsuji

发明人： Hiroyoshi Takao ,  Akio Imai ,  Mitsuji Tsuji

IPC分类号： C08F255/04 ,  C08F255/02 ,  C08F255/06

CPC分类号： C08F255/02

摘要： A modified copolymer rubber obtained by kneading at 200.degree.-280.degree. C.(A) at least one copolymer rubber material selected from the group consisting of an ethylene-.alpha.-olefin copolymer rubber having a number-average molecular weight of 10,000-100,000 and an ethylene content of 15-85% by weight and an ethylene-.alpha.-olefin-nonconjugated diene copolymer rubber having a number-average molecular weight of 10,000-100,000, an ethylene content of 15-85% by weight and a nonconjugated diene content of 3.0% by weight or less,(B) a free-radical initiator,(C) at least one vinyl aromatic monomer and(D) an unsaturated dicarboxylic anhydride, wherein the weight ratios of (B):(A), (C):(A), (D):(A) and (C):(D) are 0.005-1.0:100, 0.2-20:100, 0.5-15:100 and 0.1-3:1, respectively.The process is suited for industrially producing a modified copolymer rubber having a high bound unsaturated dicarboxylic anhydride content, a low tendency of increase of the Mooney viscosity [ML.sub.1+4 (121.degree. C.)], and an excellent moldability and storage stability without being obstructed by gel formation during the kneading. The modified copolymer rubber thus obtained can be advantageously used for thermoplastic elastomer, blending polymer adhesive etc.

摘要翻译： 通过在200〜280℃下捏合得到的改性共聚物橡胶（A）至少一种选自数均分子量为10,000-100,000的乙烯-α-烯烃共聚物橡胶和 乙烯含量为15-85％（重量），乙烯-α-烯烃 - 非共轭二烯共聚物橡胶的数均分子量为10,000-100,000，乙烯含量为15-85％（重量），非共轭二烯含量为 3.0重量％以下，（B）自由基引发剂，（C）至少一种乙烯基芳族单体和（D）不饱和二羧酸酐，其中（B）:( A），（C） ：（A），（D）：（A）和（C）:( D）分别为0.005-1.0:100,0.2-20:100,0.5-15:100和0.1-3:1。 该方法适用于工业生产具有高结合不饱和二羧酸酐含量的改性共聚物橡胶，门尼粘度[ML1 + 4（121℃）]增加的趋势低，并且具有优异的成型性和储存稳定性，而不会 在捏合期间被凝胶形成阻碍。 由此获得的改性共聚物橡胶可有利地用于热塑性弹性体，共混聚合物粘合剂等。

公开(公告)号：US5015692A

公开(公告)日：1991-05-14

申请号：US501700

申请日：1990-03-30

申请人： Hiroyoshi Takao ,  Akio Imai ,  Tomoaki Seki ,  Mitsuji Tsuji

发明人： Hiroyoshi Takao ,  Akio Imai ,  Tomoaki Seki ,  Mitsuji Tsuji

IPC分类号： C08C19/42

CPC分类号： C08C19/42

摘要： A process for preparing modified diene polymer rubbers having an increased impact resilience and a reduced hardness at low temperatures and useful as rubber materials for automobile tires and other industries which comprises producing an alkali metal-containing conjugated diene polymer, and reacting the alkali metal-containing polymer with a modifier selected from the group consisting of a nitro compound, a phosphoryl chloride compound of the formula: ##STR1## wherein R.sup.1 to R.sup.4 are independently an alkyl group, and an aminosilane compound of the formula: ##STR2## wherein R.sup.5 to R.sup.7 are independently an alkyl group or an alkoxyl group, R.sup.8 and R.sup.9 are independently an alkyl group, and n is an integer,said alkali metal-containing diene polymer being prepared by a living anionic polymerization using an alkali metal-based catalyst or by an addition reaction of a diene polymer having conjugated diene units and an alkali metal-based catalyst in a hydrocarbon solvent. The modified diene polymers can be incorporated with usual rubber additives to provide rubber compositions for various purposes, and the cured products show an increased impact resilience and a reduced hardness at low temperatures.

公开(公告)号：US5189108A

公开(公告)日：1993-02-23

申请号：US625924

申请日：1990-12-14

申请人： Akio Imai ,  Mitsuji Tsuji ,  Takashi Sanada ,  Keisaku Yamamoto

发明人： Akio Imai ,  Mitsuji Tsuji ,  Takashi Sanada ,  Keisaku Yamamoto

IPC分类号： C08F255/04 ,  C08F255/06 ,  C08F279/02 ,  C08F291/00 ,  C08F291/02

CPC分类号： C08F255/04 ,  C08F255/06 ,  C08F279/02

摘要： A modified polymer rubber is obtained by(1) graft-polymerizing at least one grafting monomer to a shreaded rubbery polymer (A) in an aqueous suspension at a temperature of 30.degree.-130.degree. C. to obtain a graft polymer, and(2) kneading the graft polymer with at least one polymerizable monomer in the presence of a free radical initiator at a temperature of 180.degree.-280.degree. C. This process does not cause gel formation and is advantageous in manufacturing cost.The modified polymer rubber thus obtained is excellent in processability and storage stability, and highly useful as a compatibilizer for various resins.

公开(公告)号：US5430086A

公开(公告)日：1995-07-04

申请号：US165164

申请日：1993-12-10

申请人： Yuichi Saito ,  Toru Fukumoto ,  Shuji Imaoka ,  Keisaku Yamamoto ,  Kizuku Wakatsuki ,  Mitsuji Tsuji

发明人： Yuichi Saito ,  Toru Fukumoto ,  Shuji Imaoka ,  Keisaku Yamamoto ,  Kizuku Wakatsuki ,  Mitsuji Tsuji

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

CPC分类号： C08K3/04 ,  B60C1/0016 ,  C08L9/06 ,  C08L2205/02 ,  C08L7/00 ,  C08L9/00 ,  C08L9/08 ,  Y10S152/905

摘要： A rubber composition for tire treads comprising a rubber component consisting essentially of (A) 20 to 100% by weight of a solution-polymerized styrene-butadiene copolymer rubber having a Mooney viscosity ML.sub.1+4 of 30 to 200 at 100.degree. C. prepared by copolymerization of styrene, butadiene and a polyvinyl aromatic compound followed by coupling with a trifunctional or tetrafunctional coupling agent, and (B) 0 to 80% by weight of at least one rubber selected from the group consisting of an emulsion-polymerized styrene-butadiene rubber, a butadiene rubber, natural rubber and a synthetic polyisoprene rubber; and (C) 50 to 250 parts by weight of a carbon black having an iodine adsorption number of not less than 60 mg/g and an oil absorption of not less than 110 ml/100 g per 100 parts by weight of said rubber component; the tan .delta. peak temperature Tg of the cured product of said rubber composition being from -40.degree. to +5.degree. C. The tread rubber composition can be processed without causing bagging with a good dispersibility of carbon black and provides tires having a low rolling resistance and a high grip characteristic.

摘要翻译： 一种用于轮胎胎面的橡胶组合物，其包含基本上由（A）20-100重量％的在100℃下门尼粘度ML1 + 4为30至200的溶液聚合的苯乙烯 - 丁二烯共聚物橡胶组成的橡胶组分，其由 苯乙烯，丁二烯和聚乙烯基芳族化合物的共聚合，然后与三官能或四官能偶联剂偶合，和（B）0至80重量％的至少一种选自乳液聚合的苯乙烯 - 丁二烯橡胶 丁二烯橡胶，天然橡胶和合成聚异戊二烯橡胶; 和（C）每100重量份所述橡胶组分50至250重量份的碘吸附数不小于60mg / g和吸油量不小于110ml / 100g的炭黑; 所述橡胶组合物的固化产物的tanδ峰值温度Tg为-40℃至+5℃。胎面橡胶组合物可以在不引起炭黑的良好分散性的情况下进行加工而且具有低滚动阻力的轮胎 和高抓地力特性。

公开(公告)号：US5290878A

公开(公告)日：1994-03-01

申请号：US72488

申请日：1993-06-07

申请人： Keisaku Yamamoto ,  Kizuku Wakatsuki ,  Mitsuji Tsuji ,  Yuichi Saito

发明人： Keisaku Yamamoto ,  Kizuku Wakatsuki ,  Mitsuji Tsuji ,  Yuichi Saito

IPC分类号： C08C19/42 ,  C08F8/00 ,  C08F36/00 ,  C08F36/06 ,  C08F236/06 ,  C08F236/10 ,  C08K5/00 ,  C08L9/00 ,  C08F8/42

CPC分类号： C08F236/10

摘要： An elastomeric butadiene copolymer prepared by a process which comprises copolymerizing butadiene, a polyvinyl aromatic compound and optionally styrene in a hydrocarbon solvent in the presence of an organolithium polymerization initiator and subjecting the resulting copolymer having lithium at the polymer end or ends to a coupling reaction with a trifunctional or tetrafunctional coupling agent, said butadiene copolymer satisfying the following conditions: (a) the content of styrene is at most 50% by weight, (b) the content of vinyl bonds in the butadiene portion is from 10 to 90% by weight, (c) the molecular weight distribution curve obtained by a high performance liquid chromatography has at least three peaks, and 5 to 60% by weight of all the polymer chains have a molecular weight which is at least 5 times the molecular weight in terms of standard polystyrene corresponding to the peak appearing on the lowest molecular weight side of the high performance liquid chromatogram, and (d) the Mooney viscosity (ML.sub.1+4, 100.degree. C.) is from 30 to 200. The butadiene copolymer has an improved processability with excellent resilience, wet grip property, abrasion resistance and mechanical properties, and is suitable for tire use.

摘要翻译： 一种弹性体丁二烯共聚物，该方法包括在有机锂聚合引发剂存在下，使丁二烯，聚乙烯基芳族化合物和任选的苯乙烯在烃溶剂中共聚，并将所得到的聚合物末端或末端的锂共聚物与 所述丁二烯共聚物满足以下条件：（a）苯乙烯含量至多为50重量％，（b）丁二烯部分中的乙烯基键含量为10〜90重量％ ，（c）通过高效液相色谱获得的分子量分布曲线具有至少三个峰，并且所有聚合物链的5至60重量％的分子量的分子量至少为分子量的5倍 对应于在高效液相色谱的最低分子量侧出现的峰的标准聚苯乙烯，和（d）t 门尼粘度（ML1 + 4,100℃）为30〜200。丁二烯共聚物具有优异的回弹性，湿抓地性，耐磨性和机械性能的加工性，适用于轮胎使用。

公开(公告)号：US5559185A

公开(公告)日：1996-09-24

申请号：US372863

申请日：1995-01-13

申请人： Hiroomi Abe ,  Taichi Nishio ,  Yasurou Suzuki ,  Mitsuji Tsuji ,  Takashi Sanada

发明人： Hiroomi Abe ,  Taichi Nishio ,  Yasurou Suzuki ,  Mitsuji Tsuji ,  Takashi Sanada

IPC分类号： C08L51/04 ,  C08L63/00 ,  C08L71/12 ,  C08L77/00 ,  C08L13/02 ,  C08L25/06

CPC分类号： C08L71/123 ,  C08L51/04 ,  C08L71/12 ,  C08L77/00 ,  C08L63/00

摘要： A thermoplastic resin composition superior in impact resistance, heat resistance, flexural rigidity, processability and solvent resistance which comprises: (A) 100 parts by weight of a resin composition comprising 5-95% by weight of a polyphenylene ether, or a polyphenylene ether and polystyrene, and 95-5% by weight of a polyamide resin; (B) 5-50 parts by weight of a modified saturated rubber obtained by grafting 5-100 parts by weight of an aromatic vinyl compound on 100 parts by weight of a saturated type rubber and allowing 0.05-10 parts by weight of a compatibilizing agent to react with said rubber; and (c) 0.05-20 parts by weight of a compatibilizing agent.

摘要翻译： 耐冲击性，耐热性，弯曲刚性，加工性和耐溶剂性优异的热塑性树脂组合物，其特征在于：（A）100重量份含有5-95重量％聚苯醚或聚苯醚的树脂组合物， 聚苯乙烯和95-5重量％的聚酰胺树脂; （B）5-50重量份通过在100重量份的饱和型橡胶上接枝5-100重量份的芳族乙烯基化合物而获得的改性饱和橡胶，并且允许0.05-10重量份的相容剂 与所述橡胶反应; 和（c）0.05-20重量份的相容剂。

公开(公告)号：US06583254B2

公开(公告)日：2003-06-24

申请号：US09983272

申请日：2001-10-23

申请人： Mitsuji Tsuji ,  Kenichiro Yada ,  Syunji Yunoki

发明人： Mitsuji Tsuji ,  Kenichiro Yada ,  Syunji Yunoki

IPC分类号： C08F11006

CPC分类号： C08J5/18 ,  C08F210/06 ,  C08J2323/10 ,  C08L23/14 ,  C08F210/08 ,  C08F2500/12 ,  C08F2500/20 ,  C08F2500/26

摘要： A propylene-based polymer having a melt flow rate of 0.1 to 20 g/10 min. and a melting point Tm (° C.) measured by using a differential scanning calorimeter (DSC) of 147 to 159° C., in which the half width HW (° C.) of the melting peak measured by using a differential scanning calorimeter (DSC) and the melting point Tm (° C.) satisfy the relation: HW≦(188−Tm)/5.

摘要翻译： 熔体流动速率为0.1〜20g / 10分钟的丙烯类聚合物。 和通过使用差示扫描量热计（DSC）为147至159℃测量的熔点Tm（℃），其中通过使用差示扫描量热计测量的熔融峰的半峰宽HW（℃） （DSC）和熔点Tm（℃）满足关系：HW <=（188-Tm）/ 5。