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    Ethylene-.alpha.-olefin copolymer and process for producing the same
    1.
    发明授权
    Ethylene-.alpha.-olefin copolymer and process for producing the same 失效
    乙烯 - （ALPHA） - 烯烃共聚物及其制造方法

    公开(公告)号：US5082908A

    公开(公告)日：1992-01-21

    申请号：US363654

    申请日：1989-06-08

    申请人： Akio Imai ,  Kiyoyuki Sugimori ,  Keisaku Yamamoto ,  Minoru Takane

    发明人： Akio Imai ,  Kiyoyuki Sugimori ,  Keisaku Yamamoto ,  Minoru Takane

    IPC分类号： C08F4/68 ,  C08F210/00

    CPC分类号： C08F210/00

    摘要： An ethylene-.alpha.-olefin copolymer is disclosed, which comprises ethylene and an .alpha.-olefin having from 3 to 10 carbon atoms, has an ethylene/.alpha.-olefin molar ratio of from 88/12 to 98/2, and which has a number average molecular weight of from 35,000 to 80,000 and a weight average molecular weight/number average molecular weight ratio of from 1.8/1 to 3.0/1 as determined by gel permeation chromatography. A process for producing the ethylene-.alpha.-olefin copolymer is also disclosed. The ethylene-.alpha.-olefin copolymer exhibits excellent transparency and excellent low-temperature heat-sealing properties. The process is advantageous from the standpoint of equipment, energy and cost.

    Catalyst for olefinic hydrocarbon polymerization and process for producing olefinic hydrocarbon polymer
    2.
    发明授权
    Catalyst for olefinic hydrocarbon polymerization and process for producing olefinic hydrocarbon polymer 失效
    烯烃聚合催化剂和生产烯烃聚合物的方法

    公开(公告)号：US5122493A

    公开(公告)日：1992-06-16

    申请号：US675823

    申请日：1991-03-27

    申请人： Hayato Saba ,  Keisaku Yamamoto ,  Akio Imai ,  Kiyoyuki Sugimori ,  Kizuku Wakatsuki

    发明人： Hayato Saba ,  Keisaku Yamamoto ,  Akio Imai ,  Kiyoyuki Sugimori ,  Kizuku Wakatsuki

    IPC分类号： C08F4/60 ,  C08F4/68 ,  C08F10/00

    CPC分类号： C08F10/00

    摘要： An inert hydrocarbon solvent-soluble catalyst for polymerization of olefinic hydrocarbons and a process for producing an olefinic polymer using the same are disclosed, the catalyst being composed of (A) a reaction product obtained by reacting (a) at least one vanadium compound represented by formula:VO(OR).sub.m X.sub.3-mwherein R represents a hydrocarbon group; X represents a halogen atom; and m represents a real number of from 0 to 3, and (b) a dihydroxy hydrocarbon compound constituted of a straight chain hydrocarbon skeleton containing from 2 to 12 carbon atoms and having a hydroxyl group at each of both terminals thereof and at least one hydrocarbon branch bonded to said hydrocarbon skeleton in an inert hydrocarbon solvent at an (a) to (b) molar ratio of from 1:0.5 to 1:1.4 and (B) at least one organoaluminum compound represented by formula:R'.sub.n AlX'.sub.3-nwherein R' represents a hydrocarbon group X' represents a halogen atom; and n represents a real number more than 0 and less than 3. Olefinic hydrocarbon polymers having narrow distributions of molecular weight and composition can be produced with high efficiency and high polymerization activity without being accompanied by obstruction or contamination of equipment due to precipitation of a catalyst.

    Catalyst for olefinic hydrocarbon polymerization and process and producing olefinic hydrocarbon polymer
    3.
    发明授权
    Catalyst for olefinic hydrocarbon polymerization and process and producing olefinic hydrocarbon polymer 失效
    用于烯烃聚合的催化剂和制备和生产烯烃聚合物

    公开(公告)号：US5191041A

    公开(公告)日：1993-03-02

    申请号：US821037

    申请日：1992-01-16

    申请人： Hayato Saba ,  Keisaku Yamamoto ,  Akio Imai ,  Kiyoyuki Sugimori ,  Kizuku Wakatsuki

    发明人： Hayato Saba ,  Keisaku Yamamoto ,  Akio Imai ,  Kiyoyuki Sugimori ,  Kizuku Wakatsuki

    IPC分类号： C08F10/00

    CPC分类号： C08F10/00

    摘要： An inert hydrocarbon solvent-soluble catalyst for polymerization of olefinic hydrocarbons and a process for producing an olefinic polymer using the same are disclosed, the catalyst being composed of (A) a reaction product obtained by reacting (a) at least one vanadium compound represented by formula:VO(OR).sub.m X.sub.3-mwherein R represents a hydrocarbon group; X represents a halogen atom; and m represents a real number of from 0 to 3, and (b) a dihydroxy hydrocarbon compound constituted of a straight chain hydrocarbon skeleton containing from 2 to 12 carbon atoms and having a hydroxyl group at each of both terminals thereof and at least one hydrocarbon branch bonded to said hydrocarbon skeleton in an inert hydrocarbon solvent at an (a) to (b) molar ratio of from 1:0.5 to 1:1.4 and (B) at least one organoaluminum compound represented by formula:R'.sub.n AlX'.sub.3-nwherein R' represents a hydrocarbon group; X' represents a halogen atom; and n represents a real number more than 0 and less than 3. Olefinic hydrocarbon polymers having narrow distributions of molecular weight and composition can be produced with high efficiency and high polymerization activity without being accompanied by obstruction or contamination of equipment due to precipitation of a catalyst.

    摘要翻译： 公开了一种用于烯烃聚合的惰性烃溶剂可溶性催化剂和使用其的制备烯烃聚合物的方法，该催化剂由（A）通过使（a）至少一种钒化合物 式：VO（OR）mX3-m其中R表示烃基; X表示卤原子; m表示0〜3的实数，（b）由含有2〜12个碳原子的直链烃骨架构成的二羟基烃化合物，其两末端具有羟基，至少一个烃 在（a）至（b）摩尔比为1:0.5至1:1.4的惰性烃溶剂中与所述烃骨架键合的至少一种有机铝化合物，和（B）至少一种由式：R'nAlX'3- n其中R'表示烃基; X'表示卤原子; 并且n表示大于0且小于3的实数。可以以高效率和高聚合活性生产具有窄分子量和组成分布的烯属烃聚合物，而不伴随催化剂沉淀引起的设备阻塞或污染 。

    Method for purifying ethylene-.alpha.-olefin copolymer
    4.
    发明授权
    Method for purifying ethylene-.alpha.-olefin copolymer 失效
    纯化乙烯 - （ALPHA） - 烯烃共聚物的方法

    公开(公告)号：US5245007A

    公开(公告)日：1993-09-14

    申请号：US805651

    申请日：1991-12-12

    申请人： Keisaku Yamamoto ,  Kizuku Wakatsuki ,  Kiyoyuki Sugimori ,  Hayato Saba ,  Katsunari Inagaki

    发明人： Keisaku Yamamoto ,  Kizuku Wakatsuki ,  Kiyoyuki Sugimori ,  Hayato Saba ,  Katsunari Inagaki

    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.

    Modified diene polymer rubbers
    5.
    发明授权
    Modified diene polymer rubbers 失效
    改性二烯聚合物橡胶

    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。

    Conjugated diene block polymer and process for preparing the same
    8.
    发明授权
    Conjugated diene block polymer and process for preparing the same 失效
    共轭二烯嵌段聚合物及其制备方法

    公开(公告)号：US4436873A

    公开(公告)日：1984-03-13

    申请号：US477583

    申请日：1983-03-21

    申请人： Hiroshi Furukawa ,  Yuichi Saito ,  Akio Imai ,  Keisaku Yamamoto ,  Hiroyoshi Takao ,  Nobuyuki Yoshida

    发明人： Hiroshi Furukawa ,  Yuichi Saito ,  Akio Imai ,  Keisaku Yamamoto ,  Hiroyoshi Takao ,  Nobuyuki Yoshida

    IPC分类号： C08F297/00 ,  C08F136/04 ,  C08F297/02

    CPC分类号： C08F297/02 ,  C08F136/04

    摘要： A conjugated diene block polymer composed of blocks having a different microstructure from each other such that one block contains 20 to 60% by mole of 1,2- and/or 3,4-bonding, the other block contains 50 to 90% by mole of 1,2- and/or 3,4-bonding, the difference in the 1,2- and/or 3,4-bonding content between the both blocks is from 20 to 50% mole and the average content of 1,2- and/or 3,4-bonding in the polymer is from 50 to 85% by mole. The block polymer has a high wet skid resistance and a low dynamic heat generating property, and is very useful as a material for automobile tires.

    摘要翻译： 共轭二烯嵌段聚合物由具有彼此不同微结构的嵌段组成，使得一个嵌段含有20至60摩尔％的1,2-和/或3,4-键，另一个嵌段含有50至90摩尔％ 的1,2-和/或3,4-键，两个嵌段之间的1,2-和/或3,4-键含量的差异为20-50％摩尔，平均含量为1,2 - 和/或3,4-键在聚合物中为50-85摩尔％。 嵌段聚合物具有高的抗湿滑性和低动态发热性，并且作为汽车轮胎的材料是非常有用的。