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81 条记录 (耗时 0.017 秒)

    Modified diene polymer rubbers
    34.
    发明公开
    Modified diene polymer rubbers 失效
    Modifizierte Kautschuk-Dienpolymere。

    公开(公告)号：EP0341496A2

    公开(公告)日：1989-11-15

    申请号：EP89107577.2

    申请日：1989-04-26

    申请人： SUMITOMO CHEMICAL COMPANY, LIMITED

    发明人： Imai, Akio ,  Seki, Tomoaki ,  Yamamoto, Keisaku

    IPC分类号： 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 a MX 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):
    wherein R¹, R², R³ and R⁴ are an alkyl group; an aminosilane compound of the formula (2):
    wherein R⁵, R⁶ and R⁷ are an alkyl group or an alkoxyl group, R⁸ and R⁹ are an alkyl group, and n is an integer; an acrylamide compound of the formula (3):
    wherein R¹⁰ is hydrogen atom or methyl group, R¹¹ and R¹² are an alkyl group, and m is an integer; and an aminovinylsilane compound of the formula (4):
    where R¹³, R¹⁴, R¹⁵, R¹⁶ and R¹⁷ are an alkyl group.

    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，在低温下的降低的硬度和改进的加工性，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R 1，R 2，R 3和R 4为烷基的 式（2）的氨基硅烷化合物：其中R 5，R 6和R 7为烷基或烷氧基的 R 8和R 9为烷基 ，n为整数; 式（3）的丙烯酰胺化合物：其中R 1是氢原子或甲基的CHEM>其中R 1和R 2都是烷基，m 是一个整数; 和式（4）的氨基乙烯基硅烷化合物：其中R 1，R 3，R 1，R 5，R 1，R 6和 > 7是烷基。

    Polybutadiene and process for preparing the same
    35.
    发明公开
    Polybutadiene and process for preparing the same 失效
    聚丁二烯及其制备方法

    公开(公告)号：EP0153732A3

    公开(公告)日：1987-02-25

    申请号：EP85102103

    申请日：1985-02-26

    申请人： SUMITOMO CHEMICAL COMPANY, LIMITED

    发明人： Imai, Akio ,  Okamoto, Yasushi ,  Saito, Masatoshi

    IPC分类号： C08F136/06 ,  C08F04/48

    CPC分类号： C08F136/06 ,  C08F4/48

    摘要： A polybutadiene having an average 1,2-bond content of 18 to 32% by mole, a branched polymer chain content of 60% by weight or more and a Mooney viscosity at 100°C of 40 to 90, the viscosity of a 5% by weight concentration solution of this polybutadiene in styrene at 25°C being 60 to 90 cps, and a process for preparing the polybutadiene comprising starting the polymerization of 1,3-butadiene in an inert hydrocarbon solvent in the presence of a Lewis basic compound and an organolithium compound, the latter compound being in an amount of 0.5 to 3 millimoles per 100 g of 1,3-butadiene, at a temperature selected from the range of 30 to 80°C, carrying out the polymerization by controlling the temperature so that the temperature at the end of polymerization may be 5 to 40°C higher than the temperature at the start of polymerization, and adding to the resulting polymer solution a polyfunctional halogen compound in an amount of 0.6 to 1 equivalent per equivalent of the organolithium compound to further react the polymer with the polyfunctional halogen compound.

    Process for producing thermoplastic elastomeric block copolymers
    36.
    发明公开
    Process for producing thermoplastic elastomeric block copolymers 失效
    Verfahren zur Herstellung von thermoplastischen Blockcopolymeren-Elastomeren。

    公开(公告)号：EP0192424A2

    公开(公告)日：1986-08-27

    申请号：EP86301005.4

    申请日：1986-02-13

    申请人： SUMITOMO CHEMICAL COMPANY, LIMITED

    发明人： Yoshida, Nobuyuki ,  Imai, Akio ,  Seki, Tomoaki

    IPC分类号： C08F297/04

    CPC分类号： C08F297/04

    摘要： Block polymerization is carried out of a monovinyl aromatic hydrocarbon A (e.g. styrene) with a conjugated diolefin B (e.g. 1,3-butadiene or isoprene) in the presence of an organomonolithium compound as initiator and the active block copolymer A-BLi in stable dispersion is reacted with further monovinyl aromatic hydrocarbon or with dialkenyl aromatic hydrocarbon (e.g. divinylbenzene) or dihalogenated hydrocarbon (e.g. dibromomethane) to make an 'A-B-A' type block copolymer.
    The polymerization medium is a chained aliphatic hydrocarbon, which can be saturated or unsaturated, straight or branched chain e.g. pentane, hexane or heptane, non-polymerisable in the presence of the initiator and containing, to cause stable dispersion of the active A-Li polymer, 0.0001 to O.lwt % of a Lewis base, e.g. a cyclic or straight chain ether or a polyether. The monomer proportions are such as to give a weight ratio of (A+A'): B in the final copolymer of 10:90 to 65:35, preferably 10:90 to 50:50.
    The solvent is easily removed by vacuum drying and is reusable.
    The product is a thermoplastic elastomer with good elastic recovery and tensile strength and highly consistent properties.

    摘要翻译： 在有机锂锂化合物作为引发剂的存在下，使用共轭二烯烃B（例如1,3-丁二烯或异戊二烯）在单乙烯基芳族烃A（例如苯乙烯）中进行嵌段聚合，而稳定分散体中的活性嵌段共聚物A-BLi 与另外的单乙烯基芳族烃或与二烯基芳烃（例如二乙烯基苯）或二卤代烃（例如二溴甲烷）反应以制备“ABA”型嵌段共聚物。 聚合介质是链状脂族烃，其可以是饱和或不饱和的，直链或支链的。 戊烷，己烷或庚烷，在引发剂的存在下不可聚合并含有，使活性A-Li聚合物稳定分散，0.0001至0.1重量％的路易斯碱例如。 环状或直链的醚或聚醚。 单体比例为：在10:90至65:35，优选10:90至50:50的最终共聚物中得到（A + A min）：B的重量比。 ...通过真空干燥容易地除去溶剂并且是可重复使用的。 ... 该产品是具有良好弹性回复和拉伸强度和高度一致性质的热塑性弹性体。

    Elastomeric copolymer of aromatic vinyl compounds and butadiene
    38.
    发明公开
    Elastomeric copolymer of aromatic vinyl compounds and butadiene 失效
    的乙烯基芳族化合物和丁二烯的弹性体共聚物。

    公开(公告)号：EP0153697A2

    公开(公告)日：1985-09-04

    申请号：EP85101864.8

    申请日：1985-02-21

    申请人： SUMITOMO CHEMICAL COMPANY, LIMITED ,  SUMITOMO RUBBER INDUSTRIES LIMITED

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

    IPC分类号： C08C19/44

    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°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 elastomer- ic 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.