-
公开(公告)号：US6087424A
公开(公告)日：2000-07-11
申请号：US614931
申请日：1996-03-11
申请人： Keisaku Yamamoto , Kizuku Wakatsuki , Hayato Saba
发明人： Keisaku Yamamoto , Kizuku Wakatsuki , Hayato Saba
IPC分类号： C08K5/5419 , C08K5/548 , C08L21/00 , C08J5/24
CPC分类号： C08K5/5419 , C08K5/548 , C08L21/00 , C08L9/00 , C08L9/06
摘要： A rubber composition obtained by kneading a mixture comprising 100 parts by weight of a solution polymerized diene rubber, 5-100 parts by weight of silica, 1-15 parts by weight of a silane coupling agent, and 1-20 parts by weight of an organic silicon compound having a number average molecular weight of about 100-10,000, and maintaining the temperature during the kneading at 200.degree. C. or less. The composition is excellent in wear resistance and productivity, has lower rolling resistance and is useful, for example, for automobile tires.
摘要翻译： 将由100重量份溶液聚合二烯橡胶，5-100重量份二氧化硅，1-15重量份硅烷偶联剂和1-20重量份的二氧化硅的混合物 数均分子量为100〜10000左右的有机硅化合物，将混炼过程中的温度保持在200℃以下。 该组合物的耐磨性和生产率优异，具有较低的滚动阻力，并且可用于例如汽车轮胎。
-
公开(公告)号：US5288810A
公开(公告)日：1994-02-22
申请号：US999617
申请日：1992-12-31
申请人： Keisaku Yamamoto , Yoshio Tanimoto , Kiyosi Ikeda , Eiichi Usuda
发明人： Keisaku Yamamoto , Yoshio Tanimoto , Kiyosi Ikeda , Eiichi Usuda
摘要： A vulcanized rubber composition which is obtained by vulcanizing a modified ethylene-.alpha.-olefin-nonconjugated diene copolymer rubber composition defined below with sulfur or organic peroxides, said modified rubber composition comprising an ethylene-.alpha.-olefin-nonconjugated diene copolymer rubber modified with 0.01-0.15% by weight of an unsaturated carboxylic acid or a derivative thereof on the basis of the modified ethylene-.alpha.-olefin-nonconjugated diene copolymer rubber and at least one dinitroamine represented by the following formula (A): ##STR1## wherein X represents a divalent chain aliphatic, cyclic aliphatic or aromatic group which may contain a halogen or oxygen, R.sup.1 represents a hydrogen atom, a chain aliphatic group, a cyclic aliphatic group or an aromatic group with a proviso that when both X and R.sup.1 represent a chain aliphatic group, nitrogen atoms may further link to each other through R.sup.1, and R.sup.2 and R.sup.3 each represents a hydrogen atom or an alkyl group of 1-12 carbon atoms and R.sup.2 and R.sup.3 may link to each other to form a ring. The vulcanized rubber composition is excellent in fatigue resistance against repeatedly applied deformation.
摘要翻译： 硫化橡胶组合物，其通过用硫或有机过氧化物硫化以下定义的改性乙烯-α-烯烃 - 非共轭二烯共聚物橡胶组合物获得，所述改性橡胶组合物包含用0.01- 0.15重量％的不饱和羧酸或其衍生物，基于改性乙烯-α-烯烃 - 非共轭二烯共聚物橡胶和至少一种由下式（A）表示的二硝基胺：其中 X表示可以含有卤素或氧的二价链脂肪族，环状脂肪族或芳香族基团，R1表示氢原子，链状脂族基团，环状脂肪族基团或芳香族基团，条件是当X和R1都表示 链状脂族基团，氮原子可以通过R 1进一步连接，R2和R3各自表示氢原子或1-12的烷基 碳原子，R2和R3可以彼此连接形成环。 硫化橡胶组合物对耐反复变形的耐疲劳性优异。
-
公开(公告)号：US4946888A
公开(公告)日：1990-08-07
申请号：US437607
申请日：1989-11-17
申请人： Keisaku Yamamoto , Yoshio Tanimoto , Isao Takano
发明人： Keisaku Yamamoto , Yoshio Tanimoto , Isao Takano
CPC分类号： C08K3/06 , C08L23/16 , C08L2312/00
摘要： A high-hardness rubber composition which is obtained by vulcanizing an unvulcanized rubber composition comprisingan unvulcanized ethylene..alpha.-olefin rubber composition (A) comprising 100 parts by weight of an ethylene..alpha.-olefin copolymer rubber, 60-150 parts by weight of a reinforcing agent and 0-70 parts by weight of a softener;5-40 parts by weight of a solid diene rubber (B) based on 100 parts by weight of said ethylene..alpha.-olefin copolymer rubber; and4-15 parts by weight of sulfur (C) based on 100 parts by weight of said ethylene..alpha.-olefin copolymer rubber,wherein said unvulcanized rubber composition is obtained by adding said solid diene rubber (B) and said sulfur (C) to said unvulcanized ethylene..alpha.-olefin rubber composition (A).
-
公开(公告)号：US3953410A
公开(公告)日：1976-04-27
申请号：US460549
申请日：1974-04-12
申请人： Daizaburo Imai , Keisaku Yamamoto
发明人： Daizaburo Imai , Keisaku Yamamoto
IPC分类号： C08F210/00 , C08F212/00
CPC分类号： C08F210/00
摘要： A substantially amorphous ethylene-.alpha.-olefin-diolefin rubbery interpolymer is obtained by interpolymerizing ethylene, an .alpha.-olefin, and as a third component a specified diolefin having a norbornene ring with a catalyst system comprising a specified combination of an ether or ester compound, an organoaluminum compound, and a transition metal compound. The resulting rubbery interpolymer has an excellent extrudability and gives a cured product having favorable physical properties.
摘要翻译： 通过将乙烯，α-烯烃和作为第三组分的具有降冰片烯环的具有降冰片烯环的特定二烯烃与包含醚或酯化合物的特定组合的催化剂体系进行共聚获得基本无定形的乙烯-α-烯烃 - 二烯烃橡胶互聚物， 有机铝化合物和过渡金属化合物。 得到的橡胶质互聚物具有优异的挤出性，得到具有良好物性的固化物。
-
公开(公告)号：US6121401A
公开(公告)日：2000-09-19
申请号：US114469
申请日：1998-07-13
IPC分类号： C08F4/646 , C08F4/659 , C08F210/06 , C08F210/08 , C08F210/16 , C08L23/10 , C08F210/02 , C08F210/14
CPC分类号： C08F210/16 , C08F210/06 , C08L23/10 , C08F210/08 , C08F4/65912 , C08L2205/02 , Y10S526/943
摘要： A propylene copolymer obtainable by polymerizing a propylene, at least one of .alpha.-olefin having 4-20 carbon atoms, and ethylene, in the presence of a catalyst for olefin polymerizaton including the following (A), (B) and/or (C):(A) at least one transition metal complex;(B) at least one aluminum compound; and(C) boron compound.
摘要翻译： 在包含以下（A），（B）和/或（C）的烯烃聚合催化剂的存在下，通过聚合丙烯，至少一种具有4-20个碳原子的α-烯烃和乙烯获得的丙烯共聚物 ）：（A）至少一种过渡金属络合物; （B）至少一种铝化合物; 和（C）硼化合物。
-
公开(公告)号：US5344881A
公开(公告)日：1994-09-06
申请号：US77456
申请日：1993-06-17
CPC分类号： C08L63/00 , C08L23/0869 , C08L71/02 , C08L2312/00
摘要： A rubber composition which is vulcanizable with organic peroxides and provides vulcanized rubber excellent in oil resistance, heat resistance, low-temperature resistance and compression set. The composition comprises 30 to 95 parts by weight of the following component (A) and 70 to 5 parts by weight of the following component (B) (wherein component (A)+component (B)=100 parts by weight) as well as 1 to 10 parts by weight of the following component (C) per 100 parts by weight of the total amount of the components (A) and (B):component (A): an ethylene-acrylate or ethylene-methacrylate copolymer rubber wherein the amount ratio in mole of ethylene and acrylate or methacrylate is in the range from 50:50 to 85:15,component (B): an epichlorohydrin rubber which is vulcanizable with an organic peroxide and has unsaturated carbon-carbon double bonds as a vulcanizable group in the amount of 1 to 15 mole % in the rubber, andcomponent (C): a multifunctional epoxy compound of a weight-average molecular weight in the range of 100 to 15,000 and of an epoxy equivalent in the range of 10 to 10,000 containing an epoxy ring.
摘要翻译： 一种可与有机过氧化物硫化并提供耐油性，耐热性，耐低温性和压缩永久变形优异的硫化橡胶的橡胶组合物。 组合物包含30至95重量份的以下组分（A）和70至5重量份的以下组分（B）（其中组分（A）+组分（B）= 100重量份））以及 组分（A）和（B）的总量每100重量份中的组分（C）1至10重量份：组分（A）：乙烯 - 丙烯酸酯或乙烯 - 甲基丙烯酸酯共聚物橡胶，其中 乙烯和丙烯酸酯或甲基丙烯酸酯的摩尔数量比在50:50至85:15的范围内，组分（B）：可用有机过氧化物硫化并具有不饱和碳 - 碳双键作为可硫化基团的表氯醇橡胶 橡胶中的含量为1〜15摩尔％，成分（C）：重均分子量为100〜15000，环氧当量为10〜10,000的多官能环氧化合物，含有 环氧环。
-
公开(公告)号：US5290878A
公开(公告)日：1994-03-01
申请号：US72488
申请日：1993-06-07
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：US5274042A
公开(公告)日：1993-12-28
申请号：US834623
申请日：1992-02-12
CPC分类号： C08G81/00 , C08G81/021 , C08G81/024
摘要： A graft polymer wherein an iodine-containing fluororubber has been grafted on an ethylene-.alpha.-olefin copolymer can be obtained by mixing 30 parts by weight of an iodine-containing fluororubber (a vinylidene fluoride-hexafluoropropylene copolymer containing iodine) and 70 parts by weight of an ethylene-propylene copolymer rubber at 180.degree. C. for 30 minutes while applying shear deformation using a Brabender mixer.
-
公开(公告)号：US5245007A
公开(公告)日：1993-09-14
申请号：US805651
申请日：1991-12-12
IPC分类号： C08F6/02
CPC分类号： C08F6/02
摘要： A method for purifying an ethylene-.alpha.-olefin olefin having at least 3 carbon atoms, or ethylene with an .alpha.-olefin having at least 3 carbon atoms and a nonconjugated diene compound, in a hydrocarbon solvent in the presence of a catalyst comprising a vanadium compound, an organoaluminum compound, and a halogenated ester compound, the method including a step of mixing and stirring the polymerization reaction mixture obtained by the polymerization reaction in an aqueous alkaline solution in such an amount as to give an aqueous phase having a pH of not lower than 10.0 after mixing and stirring, is disclosed. A method for purifying an ethylene-.alpha.-olefin copolymer is also disclosed, including a step of an oxidation treatment of the polymerization reaction mixture in an aqueous alkaline solution in such an amount as to give an aqueous phase having a pH of not lower than 10.0 after the oxidation treatment.
-
公开(公告)号：US5039756A
公开(公告)日：1991-08-13
申请号：US376490
申请日：1989-07-07
IPC分类号： C08L63/00 , C08F8/44 , C08G59/00 , C08G59/40 , C08G59/44 , C08G59/50 , C08G59/54 , C08G59/56 , C08K3/22 , C08K13/02
摘要： A vulcanizable epoxy group-containing elastomer composition is disclosed, which comprises:(A) an epoxy group-containing elastomer having compounded therewith(B) an organic compound having at least two linkages, per molecule, of the formula ##STR1## wherein X and Y are each oxygen atom or sulfur atom, or one of X and Y is oxygen atom and the other is sulfur atom;(C) a quaternary ammonium salt and/or a quaternary phosphonium salt;(D) a compound having one linkage, per molecule, of the formula ##STR2## wherein Z is oxygen atom or sulfur atom; and (E) calcium oxide or a combination of calcium oxide and calcium hydroxide.
摘要翻译： 公开了一种可硫化的含环氧基的弹性体组合物，其包含：（A）与其混合的含环氧基的弹性体（B）每分子具有至少两个键的有机化合物，其中X和 Y分别是氧原子或硫原子，或X和Y中的一个是氧原子，另一个是硫原子; （C）季铵盐和/或季鏻盐; （D）每分子具有一个键的化合物，其中Z是氧原子或硫原子; 和（E）氧化钙或氧化钙和氢氧化钙的组合。
-
-
-
-
-
-
-
-
-
搜索结果
37 条记录 (耗时 0.027 秒)
