公开(公告)号：US5219938A

公开(公告)日：1993-06-15

申请号：US848095

申请日：1992-03-09

申请人： Akio Imai ,  Tomoaki Seki ,  Keisaku Yamamoto

发明人： Akio Imai ,  Tomoaki Seki ,  Keisaku Yamamoto

IPC分类号： B60C1/00 ,  C08C19/42

CPC分类号： B60C1/0016 ,  C08C19/42

摘要： A process for preparing modified diene polymer rubbers having an increased impact resilience, a reduced hardness at low temperatures and an improved processability, and useful as rubber materials for automobile tires and other industries which comprises producing a conjugated diene polymer having alkali metal end or ends, and reacting the alkali metal-containing polymer with (a) a silicon or tin compound of the formula: R.sub.a MX.sub.b wherein R is an alkyl group, an alkenyl group, a cycloalkenyl group or an aromatic hydrocarbon atom, a is 0, 1 or 2 and b is 2, 3 or 4, and (b) at least one member selected from the group consisting of a nitro compound; a phosphoryl chloride compound of the formula (1): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are an alkyl group; an aminosilane compound of the formula (2): ##STR2## wherein R.sup.5, R.sup.6 and R.sup.7 are an alkyl group or an alkoxyl group, R.sup.8 and R.sup.9 are an alkyl group, and n is an integer; an acrylamide compound of the formula (3): ##STR3## wherein R.sup.10 is hydrogen atom or methyl group, R.sup.11 and R.sup.12 are an alkyl group, and m is an integer; and an aminovinylsilane compound of the formula (4): ##STR4## wherein R.sup.13, R.sup.14, R.sup.15, R.sup.16 and R.sup.17 are an alkyl group.

摘要翻译： 一种制备具有增加的冲击弹性，在低温下降低的硬度和改善加工性能的改性二烯聚合物橡胶的方法，并且可用作汽车轮胎和其它工业的橡胶材料，其包括制备具有碱金属末端或末端的共轭二烯聚合物， 并使含碱金属的聚合物与（a）下式的硅或锡化合物：其中R是烷基，烯基，环烯基或芳族烃原子，其中R是一个或多个， b是2,3或4，和（b）至少一种选自硝基化合物; 式（1）的磷酰氯化合物：其中R1，R2，R3和R4是烷基; （2）的氨基硅烷化合物：其中R5，R6和R7是烷基或烷氧基，R8和R9是烷基，n是整数; 式（3）的丙烯酰胺化合物：其中R 10是氢原子或甲基，R 11和R 12是烷基，m是整数; 和式（4）的氨基乙烯基硅烷化合物：其中R 13，R 14，R 15，R 16和R 17是烷基。

公开(公告)号：US4743652A

公开(公告)日：1988-05-10

申请号：US5400

申请日：1987-02-02

申请人： Nobuyuki Yoshida ,  Yasushi Okamoto ,  Akio Imai ,  Tomoaki Seki ,  Hiroshi Furukawa ,  Yuichi Saito

发明人： Nobuyuki Yoshida ,  Yasushi Okamoto ,  Akio Imai ,  Tomoaki Seki ,  Hiroshi Furukawa ,  Yuichi Saito

IPC分类号： C08F236/00 ,  C08C19/30 ,  C08C19/44 ,  C08F8/00 ,  C08F212/00 ,  C08F212/06 ,  C08F236/10 ,  C08F8/42

CPC分类号： C08C19/44

摘要： An elastomeric copolymer of an aromatic vinyl compound and butadiene prepared by a solution polymerization method, which has a glass transition temperature of not less than -50.degree. C. and contains polymer chains modified with a trifunctional or tetrafunctional coupling agent, and which contains not less than 3% by weight to less than 23% by weight, based on the whole polymer chains, of polymer chains having a molecular weight of at least 5 times a molecular weight corresponding to a peak appearing on the low molecular weight side of a high performance liquid chromatogram of the elastomeric copolymer. The elastomeric copolymer has an excellent processability and shows a low rolling resistance and a high wet grip characteristic when used as a rubber component in tires.

摘要翻译： 通过溶液聚合法制备的芳族乙烯基化合物和丁二烯的弹性体共聚物，其具有不低于-50℃的玻璃化转变温度，并且包含用三官能或四官能偶联剂改性的聚合物链，并且不少于 基于整个聚合物链，分子量至少为分子量的5倍的聚合物链的3重量％至小于23重量％，该分子量对应于高性能的低分子量侧上出现的峰 弹性共聚物的液相色谱图。 弹性体共聚物在轮胎中用作橡胶组分时具有优异的加工性能，并且具有低滚动阻力和高湿抓地性能。

公开(公告)号：US5189109A

公开(公告)日：1993-02-23

申请号：US854781

申请日：1992-03-23

申请人： Akio Imai ,  Tomoaki Seki

发明人： Akio Imai ,  Tomoaki Seki

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 akali metal-containing polymer with an acrylamide modifier compound of the formula: ##STR1## wherein R.sup.1 is hydrogen atom or methyl group, R.sup.2 and R.sup.3 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 and with or without other rubbers to provide rubber compositions for various purposes, and the cured products show 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，其具有增加的冲击弹性和在低温下的降低的硬度，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 聚合物与下式的丙烯酰胺改性剂化合物：其中R1是氢原子或甲基，R2和R3独立地是烷基，n是整数，所说的含碱金属的二烯聚合物是通过活性阴离子聚合制备的，使用 碱金属类催化剂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一起加入，也可加入或不与其它橡胶混合以提供用于各种目的的橡胶组合物，并且固化产物在低温下显示出增加的冲击弹性和降低的硬度。

公开(公告)号：US4385151A

公开(公告)日：1983-05-24

申请号：US324548

申请日：1981-11-24

申请人： Hiroshi Furukawa ,  Yuichi Saito ,  Akio Imai ,  Keisaku Yamamoto ,  Tomoaki Seki ,  Nobuyuki Yoshida

发明人： Hiroshi Furukawa ,  Yuichi Saito ,  Akio Imai ,  Keisaku Yamamoto ,  Tomoaki Seki ,  Nobuyuki Yoshida

IPC分类号： C08L9/00 ,  C08K3/06

CPC分类号： C08L9/00

摘要： A rubber composition containing an isoprene homopolymer or copolymer having a glass transition temperature of not less than -50.degree. C. and a Mooney viscosity of 20 to 120. The composition can provide a cured rubber having a high wet road gripping force and a small dynamic heat generating characteristic, and is very suitable for use in tires of automobiles.

摘要翻译： 一种橡胶组合物，其含有玻璃化转变温度不低于-50℃，门尼粘度为20〜120的异戊二烯均聚物或共聚物。该组合物可以提供具有高湿道路夹紧力和小动态 发热特性，非常适合用于汽车轮胎。

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：US4885338A

公开(公告)日：1989-12-05

申请号：US188326

申请日：1988-05-04

申请人： Hiroyoshi Takao ,  Akio Imai ,  Tomoaki Seki

发明人： Hiroyoshi Takao ,  Akio Imai ,  Tomoaki Seki

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 nitroalkyl acrylate of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are independently an alkyl group and n is an integer, and a nitroamino compound of the formula: ##STR2## wherein R.sup.3 to R.sup.6 are independently an alkyl group, and m 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：US4845173A

公开(公告)日：1989-07-04

申请号：US830041

申请日：1986-02-18

申请人： Nobuyuki Yoshida ,  Akio Imai ,  Tomoaki Seki

发明人： Nobuyuki Yoshida ,  Akio Imai ,  Tomoaki Seki

IPC分类号： C08F297/00 ,  C08F297/04

CPC分类号： C08F297/04

摘要： A process for producing a thermoplastic elastomer comprising a block copolymer of the A-B-A' type, wherein A is a monovinyl aromatic hydrocarbon polymer block, B is a conjugated diolefin polymer block, and A' is either the same as A or a polymer block derived from a dialkenyl aromatic hydrocarbon or a dihalogenated hydrocarbon, which process comprises polymerizing a monovinyl aromatic hydrocarbon in a polymerization medium in the presence of an organomonolithium compound as a polymerization initiator, adding a conjugated diolefin to perform block copolymerization, and further adding a monovinyl aromatic hydrocarbon to perform polymerization or in the alternative, adding a dialkenyl aromatic hydrocarbon or a dihalogenated hydrocarbon to perform coupling, wherein the monomer components are used in such amounts that the weight ratio of (A+A') to B ranges from 10/90 to 65/35, and a chained aliphatic hydrocarbon solvent containing from 0.0001 to 0.1 wt % of a Lewis basic compound is used as the polymerization medium, is disclosed. According to the process of the invention, the desired thermoplastic elastomer having good physical properties is readily obtainable with high reproducibility.

摘要翻译： 一种制备包含ABA'型嵌段共聚物的热塑性弹性体的方法，其中A是单乙烯基芳族烃聚合物嵌段，B是共轭二烯烃聚合物嵌段，A'与A相同或衍生自 二烯基芳烃或二卤代烃，该方法包括在有机锂锂化合物作为聚合引发剂的存在下在聚合介质中聚合单乙烯基芳烃，加入共轭二烯烃进行嵌段共聚，并进一步加入单乙烯基芳烃 进行聚合，或者在替代方案中，加入二烯基芳族烃或二卤代烃进行偶联，其中单体成分的用量使得（A + A'）与B的重量比为10/90〜65 / 35，使用含有0.0001〜0.1重量％路易斯碱性化合物的链状脂肪族烃溶剂 公开了聚合介质。 根据本发明的方法，具有良好物理性能的所需热塑性弹性体可以以高重现性容易地获得。

公开(公告)号：US5128416A

公开(公告)日：1992-07-07

申请号：US581163

申请日：1990-09-05

申请人： Akio Imai ,  Tomoaki Seki ,  Keisaku Yamamoto

发明人： Akio Imai ,  Tomoaki Seki ,  Keisaku Yamamoto

IPC分类号： B60C1/00 ,  C08C19/42

CPC分类号： C08C19/42 ,  B60C1/0016

摘要： A process for preparing modified diene polymer rubbers having an increased impact resilience, a reduced hardness at low temperatures and an improved processability, and useful as rubber materials for automobile tires and other industries which comprises producing a conjugated diene polymer having alkali metal end or ends, and reacting the alkali metal-containing polymer with (a) a silicon or tin compound of the formula: R.sub.a MX.sub.b wherein R is an alkyl group, an alkenyl group, a cycloalkenyl group or an aromatic hydrocarbon group, M is silicon atom or tin atom, X is a halogen atom, a is 0, 1 or 2 and b is 2, 3 or 4, and (b) at least one member selected from the group consisting of a nitro compound; a phosphoryl chloride compound of the formula (1): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are an alkyl group; an aminosilane compound of the formula (2): ##STR2## wherein R.sup.5, R.sup.6 and R.sup.7 are an alkyl group or an alkoxyl group, R.sup.8 and R.sup.9 are an alkyl group, and n is an integer; an acrylamide compound of the formula (3): ##STR3## wherein R.sup.10 is hydrogen atom or methyl group, R.sup.11 and R.sup.12 are an alkyl group, and m is an integer; and an aminovinylsilane compound of the formula (4): ##STR4## wherein R.sup.13, R.sup.14, R.sup.15, R.sup.16 and R.sup.17 are an alkyl group.

摘要翻译： 一种制备具有增加的冲击弹性，在低温下降低的硬度和改进加工性能的改性二烯聚合物橡胶的方法，并且可用作汽车轮胎和其它工业的橡胶材料，其包括制备具有碱金属末端或末端的共轭二烯聚合物， 使含碱金属的聚合物与（a）下式的硅或锡化合物反应：其中R是烷基，烯基，环烯基或芳族烃基，M是硅原子或锡原子， X是卤素原子，a是0,1或2，b是2,3或4，和（b）至少一种选自硝基化合物; 式（1）的磷酰氯化合物：其中R1，R2，R3和R4是烷基; （2）的氨基硅烷化合物：其中R5，R6和R7是烷基或烷氧基，R8和R9是烷基，n是整数; 式（3）的丙烯酰胺化合物：其中R 10是氢原子或甲基，R 11和R 12是烷基，m是整数; 和式（4）的氨基乙烯基硅烷化合物：其中R 13，R 14，R 15，R 16和R 17是烷基。

公开(公告)号：US4523618A

公开(公告)日：1985-06-18

申请号：US480348

申请日：1983-03-30

申请人： Keisaku Yamamoto ,  Nobuyuki Yoshida ,  Yasushi Okamoto ,  Akio Imai ,  Tomoaki Seki ,  Hiroshi Furukawa ,  Yuichi Saito

发明人： Keisaku Yamamoto ,  Nobuyuki Yoshida ,  Yasushi Okamoto ,  Akio Imai ,  Tomoaki Seki ,  Hiroshi Furukawa ,  Yuichi Saito

IPC分类号： C08F4/00 ,  B60C1/00 ,  C08C19/44 ,  C08F4/42 ,  C08F236/00 ,  C08F236/10 ,  C08L9/00 ,  B60C11/00

CPC分类号： C08C19/44 ,  B60C1/0016 ,  C08L9/00 ,  Y10S152/905 ,  Y10T152/10495

摘要： A branched polymer which is a butadiene homopolymer or a copolymer of an aromatic vinyl compound and butadiene and has a glass transition temperature of not less than -50.degree. C. and of which at least 70% by weight of the polymer chains has a branched structure in which high molecules are coupled by a trifunctional or tetrafunctional coupling agent, has an excellent roll processability as required in mixing a rubber component with additives and provides a rubber component for tire tread showing a low rolling resistance and an excellent wet skid resistance characteristic.

摘要翻译： 作为丁二烯均聚物或芳族乙烯基化合物与丁二烯的共聚物的分支聚合物，其玻璃化转变温度不低于-50℃，其中至少70重量％的聚合物链具有支链结构 其中高分子通过三官能或四官能偶联剂偶联，根据需要在橡胶组分与添加剂混合时具有优异的辊加工性，并提供了具有低滚动阻力和优异的抗湿滑性能的轮胎胎面用橡胶组分。

公开(公告)号：US07795438B2

公开(公告)日：2010-09-14

申请号：US10580908

申请日：2005-04-27

申请人： Akio Imai ,  Hiroshi Nishimura

发明人： Akio Imai ,  Hiroshi Nishimura

IPC分类号： C07D211/32

CPC分类号： C07D211/32 ,  B01J25/02

摘要： Processes for preparing 1-benzyl-4-[(5,6-dimethoxy-lindanon)-2-yl]methylpiperidine (donepezil), which is useful as an intermediate for medicines, and for producing 1-benzyl-4-[(5,6-dimethoxy-1-indanon)-2-yl]methylpiperidine hydrochloride (donepezil hydrochloride), which is useful as a medicine. The process for donepezil hydrochloride production comprises catalytically hydrogenating the compound represented by the structural formula (III) [1-benzyl-4-[(5,6-dimethoxy-lindanon)-2-ylidene]methylpiperidine] with a Raney nickel catalyst under mild conditions and subsequently treating it with hydrochloric acid. Thus, impurities are further diminished. The operations are simple and the process is suitable for industrial production.

摘要翻译： 用于制备1-苄基-4 - [（5,6-二甲氧基 - 茚满酮）-2-基]甲基哌啶（多奈哌齐）的方法，其可用作药物的中间体，并用于制备1-苄基-4 - [（5 ，6-二甲氧基-1-茚满酮）-2-基]甲基哌啶盐酸盐（盐酸多奈哌齐），其可用作药物。 盐酸多奈哌齐的方法包括用温和的阮内镍催化剂催化氢化由结构式（III）[1-苄基-4 - [（5,6-二甲氧基 - 茚满酮）-2-亚基]甲基哌啶]代表的化合物 然后用盐酸处理。 因此，杂质进一步减少。 操作简单，适用于工业生产。