公开(公告)号：US4889881A

公开(公告)日：1989-12-26

申请号：US230661

申请日：1988-08-09

申请人： Hiroyoshi Takao ,  Yoshio Tanimoto ,  Kiyosi Ikeda

发明人： Hiroyoshi Takao ,  Yoshio Tanimoto ,  Kiyosi Ikeda

IPC分类号： C08K5/13 ,  C08K3/36 ,  C08K5/14 ,  C08K5/34 ,  C08K5/3435 ,  C08L23/00 ,  C08L23/08 ,  C08L23/16

CPC分类号： C08K3/36 ,  C08K5/3435

摘要： An ethylene-.alpha.-olefin vulcanized rubber composition with excellent weather resistance and high transparency which is formed by vulcanizing with an organic peroxide an unvulcanized rubber composition comprising an ethylene-.alpha.-olefin rubber containing no metal oxide nor metal carbonate.

摘要翻译： 具有优异的耐候性和高透明度的乙烯-α-烯烃硫化橡胶组合物，其通过用有机过氧化物硫化而形成的包含不含金属氧化物的乙烯-α-烯烃橡胶和金属碳酸盐的未硫化橡胶组合物。

公开(公告)号：US4820774A

公开(公告)日：1989-04-11

申请号：US108499

申请日：1987-10-14

申请人： Hiroyoshi Takao ,  Yoshio Tanimoto ,  Kiyosi Ikeda ,  Masahiro Fukuyama

发明人： Hiroyoshi Takao ,  Yoshio Tanimoto ,  Kiyosi Ikeda ,  Masahiro Fukuyama

IPC分类号： C08L23/08 ,  C08L23/16 ,  C08L23/26 ,  C08L33/14

CPC分类号： C08L23/0884 ,  C08L23/0869 ,  C08L23/16 ,  C08L2312/00 ,  Y10S525/913

摘要： A vulcanizable elastomer composition comprising an .alpha.-olefin copolymer comprising ethylene and an .alpha.-olefin(s) and an ethylene copolymer comprising ethylene and at least one member selected from the group consisting of acrylic and methacrylic esters, which has an excellent roll-processability and gives by vulcanization an elastomeric material having well-balanced properties in respect of resistance to heat and oil, low-temperature property and the like.

摘要翻译： 一种可硫化的弹性体组合物，其包含包含乙烯和α-烯烃的α-烯烃共聚物和包含乙烯和至少一种选自丙烯酸和甲基丙烯酸酯的组分的乙烯共聚物，其具有优异的辊加工性和 通过硫化得到在耐热油和低温性等方面具有良好平衡性能的弹性体材料。

公开(公告)号：US4987199A

公开(公告)日：1991-01-22

申请号：US247515

申请日：1988-09-22

申请人： Hiroyoshi Takao ,  Nobuyuki Yoshida ,  Kiyosi Ikeda ,  Masahiro Fukuyama

发明人： Hiroyoshi Takao ,  Nobuyuki Yoshida ,  Kiyosi Ikeda ,  Masahiro Fukuyama

IPC分类号： C08F210/02

CPC分类号： C08F210/02

摘要： The present invention provides an ethylene-acrylic acid ester copolymer giving low deformation during vulcanization and having a high dimensional accuracy and excellent properties, as well as a process for producing said copolymer.

公开(公告)号：US4942223A

公开(公告)日：1990-07-17

申请号：US530358

申请日：1983-09-08

申请人： Hiroyoshi Takao ,  Yoshio Inoue ,  Hirotami Yamazaki

发明人： Hiroyoshi Takao ,  Yoshio Inoue ,  Hirotami Yamazaki

IPC分类号： C08F6/00 ,  C08C2/06 ,  C08F6/12

CPC分类号： C08F6/12 ,  C08C2/06

摘要： In order to recover a polymer, such as styrene butadiene copolymer rubber, from a solution obtained by a solution polymerization of the corresponding comonomers, without degradation or deterioration of the polymer, the solution, ordinarily in 3 to 30% by weight concentration, is separated into the solvent and a more concentrated polymer solution of not less than 50% by weight, by heating the solution under a pressure at such a temperature (A) that the polymer does not decompose, heating a solvent, which is preferably the same as that for the solution, at a higher temperature than (A) above under a pressure, and joining the heated solution and the heated solvent in a mixer to convey to a flash evaporator.

摘要翻译： 为了从由相应的共聚单体的溶液聚合获得的溶液中回收聚合物如苯乙烯丁二烯共聚物橡胶，而不降解或劣化聚合物，通常将3至30重量％浓度的溶液分离 通过在聚合物不分解的温度（A）的压力下加热溶液，加热溶剂，加入溶剂，加入溶剂，加入溶剂，优选与溶剂相同 对于溶液，在比压力高于（A）的温度下，在混合器中将加热的溶液和加热的溶剂接合以输送到闪蒸器。

公开(公告)号：US4407989A

公开(公告)日：1983-10-04

申请号：US348772

申请日：1982-02-16

申请人： Hiroyoshi Takao ,  Yoshio Inoue

发明人： Hiroyoshi Takao ,  Yoshio Inoue

IPC分类号： C08F6/06 ,  C08J9/28

CPC分类号： C08F6/06

摘要： A process for the separation treatment of a polymer solution characterized by, in separating and recovering polymer and polymerization solvent by flashing a polymer solution, heating said polymer solution under an elevated pressure sufficient to maintain said solution in a liquid phase, sending said solution into a flashing tank kept at an inner surface temperature of 140.degree. C. or above and a pressure ranging from ordinary pressure to 5 kg/cm.sup.2 G, flashing said solution to evaporate and separate the solvent, thereby concentrating said solution so that concentration of the polymer in said solution becomes 80% by weight or more, and recovering the concentrated solution from the bottom part of the flashing tank.

摘要翻译： 一种用于分离处理聚合物溶液的方法，其特征在于，通过闪烁聚合物溶液分离和回收聚合物和聚合溶剂，在足以将所述溶液保持在液相中的高压下加热所述聚合物溶液，将所述溶液送入 闪蒸罐保持在140℃或更高的内表面温度和常压至5kg / cm2 G的压力下，闪蒸所述溶液以蒸发并分离溶剂，从而浓缩所述溶液，使聚合物浓度 所述溶液为80重量％以上，从闪蒸罐的底部回收浓缩液。

公开(公告)号：US5118773A

公开(公告)日：1992-06-02

申请号：US784079

申请日：1991-10-30

申请人： Hiroyoshi Takao ,  Hiroyuki Harada ,  Kiyoyuki Sugimori ,  Nobuyuki Yoshida ,  Masahiro Fukuyama ,  Hideaki Yamada ,  Junichi Koshiba

发明人： Hiroyoshi Takao ,  Hiroyuki Harada ,  Kiyoyuki Sugimori ,  Nobuyuki Yoshida ,  Masahiro Fukuyama ,  Hideaki Yamada ,  Junichi Koshiba

IPC分类号： C08F4/68 ,  C08F210/18 ,  C08L23/16

CPC分类号： C08L23/16 ,  C08F210/18 ,  C08L2203/202 ,  C08L2312/00

摘要： Herein is disclosed a vulcanizable rubber composition comprising a copolymer rubber constituted of ethylene, propylene and nonconjugated polyene, wherein ethylene/propylene molar ratio is 78/22 to 97/3 and the total content of propylene and nonconjugated polyene is 6 to 30% by mole in said copolymer rubber. By the use of the rubber composition of the present invention, a vulcanized product excellent in tensile strength, heat resistance, oil resistance, compression set resistance and flex behavior can be obtained. The vulcanized product can be used as automobile parts and other innumerable articles such as socket cover, heat resistant hose, electric wire, condenser cap, heat resistant belt, vibration-proof rubber, hoses weather strip, seal sponge, black side wall of tire, etc.

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：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：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。