Process for producing polybutadiene rubber
    1.
    发明授权
    Process for producing polybutadiene rubber 失效
    生产聚丁二烯橡胶的方法

    公开(公告)号:US5686543A

    公开(公告)日:1997-11-11

    申请号:US655676

    申请日:1996-05-30

    CPC分类号: C08F36/06

    摘要: A process for producing a polybutadiene rubber having a cis-1,4 content of 94% or more, a ratio of weight average molecular weight to number average molecular weight of 2.5 to 3.5 as measured by a gel permeation chromatography and a Mooney viscosity (ML.sub.1+4, 100.degree. C.) of 20 to 100, which process comprises polymerizing 1,3-butadiene in an inert organic solvent with a catalyst comprising as the main components (a) a nickel compound; (b) a specific fluorine compound; (c) a trialkylaluminum; and (d) a halogenated aldehyde and/or a quinone compound. The use of the specific catalyst enables the production in a high yield of a polybutadiene rubber which maintains the abrasion resistance, high impact resilience and low heat buildup which are the characteristics of polybutadiene rubber and has a small die swell when extruded in the form of a blend with a natural rubber and is excellent in physical properties of vulcanizate.

    摘要翻译: 制备顺式-1,4含量为94%以上的聚丁二烯橡胶的方法,通过凝胶渗透色谱法测定的重均分子量与数均分子量的比例为2.5〜3.5,门尼粘度(ML1 +4,100℃)为20〜100,该方法包括在惰性有机溶剂中用包含作为主要组分(a)的镍化合物的催化剂聚合1,3-丁二烯; (b)特定的氟化合物; (c)三烷基铝; 和(d)卤化醛和/或醌化合物。 使用特定的催化剂使得能够以高产率的聚丁二烯橡胶生产,其保持作为聚丁二烯橡胶的特性的耐磨性,高回弹性和低热积聚性,并且当以下列形式挤出时具有小的模头膨胀 与天然橡胶混合,硫化胶的物理性能优良。

    Method of producing conjugated diene polymers with narrow molecular weight distribution and polymer produced
    2.
    发明授权
    Method of producing conjugated diene polymers with narrow molecular weight distribution and polymer produced 有权
    生产具有窄分子量分布的共轭二烯聚合物和聚合物的方法

    公开(公告)号:US07294680B2

    公开(公告)日:2007-11-13

    申请号:US10759299

    申请日:2004-01-20

    CPC分类号: C08C19/00 C08F36/04 C08F4/545

    摘要: Conjugated diene polymers having good wear resistance, mechanical properties, storage stability, processability and a reduced cold flow are produced by polymerizing a conjugated diene compound with a catalyst of rare earth element compound, a compound containing at least one halogen atom, an aluminoxane, and an organoaluminum compound in an organic solvent and reacting the resulting polymer just after the polymerization with at least one compound selected from the group consisting of a halogenated organometallic compound, a halogenated metal compound, an organometallic compound, a heterocumulene compound, a hetero three-membered-ring containing compound, a halogenated isocyano compound, a carboxylic acid, an acid halide, an ester compound, a carbonic ester compound, an acid anhydride and a metal salt of a carboxylic acid as a modifying agent.

    摘要翻译: 通过使共轭二烯化合物与稀土元素化合物的催化剂,含有至少一个卤素原子的化合物,铝氧烷和/或其混合物共聚而形成具有良好的耐磨性,机械性能,储存稳定性,加工性和降低的冷流的共轭二烯聚合物 在有机溶剂中的有机铝化合物,使刚刚聚合后的所得聚合物与选自卤代有机金属化合物,卤化金属化合物,有机金属化合物,异葎草烯化合物,杂三元醇的至少一种化合物反应 卤化异氰化合物,羧酸,酰卤,酯化合物,碳酸酯化合物,酸酐和作为改性剂的羧酸金属盐。

    Method of producing conjugated diene polymers
    4.
    发明授权
    Method of producing conjugated diene polymers 有权
    共轭二烯聚合物的制备方法

    公开(公告)号:US06255416B1

    公开(公告)日:2001-07-03

    申请号:US09305260

    申请日:1999-05-04

    IPC分类号: C08F462

    CPC分类号: C08F4/545 C08F36/04

    摘要: A conjugated diene polymer is obtained by using a specified catalyst system consisting of components (a)-(d) and indicating a high polymerization activity to a conjugated diene compound. Further, a modified conjugated diene polymer is obtained by reacting with at least one specified compound selected from the group consisting of components (e)-(j).

    摘要翻译: 通过使用由组分(a) - (d)组成的特定催化剂体系并且表示对共轭二烯化合物具有高聚合活性的共轭二烯聚合物。 此外,通过与至少一种选自组分(e) - (j)的指定化合物反应获得改性共轭二烯聚合物。

    Styrene-butadiene block copolymer
    5.
    发明授权
    Styrene-butadiene block copolymer 失效
    苯乙烯 - 丁二烯嵌段共聚物

    公开(公告)号:US4433109A

    公开(公告)日:1984-02-21

    申请号:US330862

    申请日:1981-12-15

    IPC分类号: C08F297/04 C08G81/02

    CPC分类号: C08G81/022 C08F297/04

    摘要: A styrene-butadiene block copolymer having a Mooney viscosity (ML.sub.1+4, 100.degree. C.) of 10 to 150 comprising two specific random styrene-butadiene copolymer blocks different in bound styrene content and in vinyl content in the butadiene portion, and optionally polybutadiene blocks, wherein the total vinyl content in the whole bound butadiene is 30 to 70% and the total bound styrene content is 10 to 40% by weight. Said block copolymer is excellent in wet skid resistance and rolling resistance, well-balanced in fracture and wear characteristics and also satisfactory in processability and cold flow property.

    摘要翻译: 具有10至150的门尼粘度(ML1 + 4,100℃)的苯乙烯 - 丁二烯嵌段共聚物,其包含在结合的苯乙烯含量中不同的两种特定的无规苯乙烯 - 丁二烯共聚物嵌段和丁二烯部分中的乙烯基含量,以及任选的聚丁二烯 嵌段,其中整个结合的丁二烯中的总乙烯基含量为30〜70%,总结合苯乙烯含量为10〜40重量%。 所述嵌段共聚物的耐湿滑性和滚动阻力优异,断裂和磨损特性平衡,加工性和冷流动性也令人满意。

    Method for preparing conjugated diene polymer
    6.
    发明授权
    Method for preparing conjugated diene polymer 失效
    共轭二烯聚合物的制备方法

    公开(公告)号:US6130299A

    公开(公告)日:2000-10-10

    申请号:US974922

    申请日:1997-11-20

    CPC分类号: C08F36/04

    摘要: A method for preparing a conjugated diene polymer characterized by polymerizing a conjugated diene in vapor phase in the presence of an inorganic filler used as a rubber reinforcement agent and a catalyst which comprises (a) a compound containing a rare earth element of an atomic number of from 57 to 71 in the Periodic Table or a compound obtained by the reaction of this rare earth element-containing compound and a Lewis base, (b) an organic aluminum compound of the formula AlR.sup.1 R.sup.2 R.sup.3 or an almoxane, and (c) a halogen-containing compound. The vapor phase polymerization ensures easy control of the molecular weight of the polymer better dispersion of a rubber enforcement agent, and provides a rubber composition with improved rupture characteristics and abrasion resistance.

    摘要翻译: 一种制备共轭二烯聚合物的方法,其特征在于在用作橡胶增强剂的无机填料和催化剂存在下,气相中共轭二烯的聚合,所述催化剂包含(a)含有原子序数的稀土元素的化合物 周期表中的57至71或通过该含稀土元素的化合物与路易斯碱的反应获得的化合物,(b)式AlR 1 R 2 R 3的有机铝化合物或阿莫氧烷,和(c) 含有化合物。 气相聚合确保了聚合物的分子量更容易控制橡胶强化剂的分散性,并提供了具有改进的断裂特性和耐磨性的橡胶组合物。