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    • 6. 发明授权
    • Process for controlling the molecular weight distribution of high
1,4-cis polybutadiene
    • 控制高1,4-顺式聚丁二烯分子量分布的方法
    • US6013746A
    • 2000-01-11
    • US93646
    • 1998-06-09
    • Young-Chan JangGwang-Hoon KwagDong-Il YoonA-Ju KimKyung-Nam Lim
    • Young-Chan JangGwang-Hoon KwagDong-Il YoonA-Ju KimKyung-Nam Lim
    • C08F36/06C08F4/609C08F136/06C08F236/06C08F4/80
    • C08F136/06
    • This invention relates to a process for controlling the molecular weight distribution of high 1,4-cis polybutadiene and more particularly, to a process of easily controlling the molecular weight distribution of polybutadiene which is concerned directly with the physical properties such as processability, in such a manner that preparation of high 1,4-cis polybutadiene is made available via polymerization of 1,3-butadiene in the presence of Ziegler-Natta catalyst, adding carboxylic acid represented by following formula I for the controlling of the molecular weight distribution of polybutadiene based on the contents of carboxylic acid, may be easily controlled, without any alternation in the 1,4-cis contents. ##STR1## Wherein R is selected from the group consisting of alkyl, cycloalkyl and arylalkyl groups substituted or unsubstituted with at least one or more halogen atoms, or alkyl, cycloalkyl and arylalkyl groups with at least one or more double bonds containing from 5 to 20 carbon atoms.
    • 本发明涉及一种控制高1,4-顺式聚丁二烯的分子量分布的方法,更具体地说,涉及容易控制聚丁二烯的分子量分布的方法,其直接关系到诸如加工性的物理性质 通过在齐格勒 - 纳塔催化剂存在下,通过1,3-丁二烯的聚合可得到制备高1,4-顺式聚丁二烯的方式,加入由下式I表示的羧酸以控制聚丁二烯的分子量分布 基于羧酸的含量,可以容易地控制,而在1,4-顺式含量中没有任何变化。 其中R选自被至少一个或多个卤素原子取代或未取代的烷基,环烷基和芳基烷基,或具有至少一个或多个含有5至20个碳原子的双键的烷基,环烷基和芳烷基。
    • 9. 发明授权
    • High 1,4-cis polybutadiene-polyurethane copolymer and preparation method thereof
    • 高1,4-顺式聚丁二烯 - 聚氨酯共聚物及其制备方法
    • US07247695B2
    • 2007-07-24
    • US10827001
    • 2004-04-19
    • Gwang Hoon KwagSam Min KimYoung Chan JangPil Sung KimSeung Hwon LeeSeung Hwa LeeA Ju Kim
    • Gwang Hoon KwagSam Min KimYoung Chan JangPil Sung KimSeung Hwon LeeSeung Hwa LeeA Ju Kim
    • C08F36/06C08F136/06
    • C08L19/006C08C19/22C08C19/44C08F36/04C08L9/00C08L15/00C08F4/545
    • Disclosed is a novel high 1,4-cis polybutadiene-polyurethane copolymer and a preparation method thereof. The present invention provides a high 1,4-cis polybutadiene-polyurethane copolymer represented by the following formula 1 and having an average molecular weight of at least 100,000, and a method for preparing the high 1,4-cis polybutadiene-polyurethane copolymer that includes polymerizing 1,3-butadiene or butadiene derivatives with a catalyst comprising a rare earth compound, a halogen-containing compound and an organoaluminum compound in the presence of a non-polar solvent, to prepare a polybutadiene having a high 1,4-cis content of at least 95%; and then introducing a polyurethane group to the polybutadiene. The high 1,4-cis polybutadiene-polyurethane copolymer thus obtained exhibits low cold flow and high affinity to silica or carbon black in admixture as well as excellent in elasticity and abrasion resistance: where l, m, n and o represent the number of repeating unit, 1 is 94 to 99%, m is 0 to 5%, n is 0 to 5%, l+m+n=100%, l/(m+n) is 15 to 100, o is 1 to 100%; and A and Y are C1-C20 alkyl or aryl, respectively.
    • 公开了一种新型高1,4-顺式聚丁二烯 - 聚氨酯共聚物及其制备方法。 本发明提供由下式1表示的平均分子量至少为100,000的高1,4-顺式聚丁二烯 - 聚氨酯共聚物,以及制备高1,4-顺式聚丁二烯 - 聚氨酯共聚物的方法,其包括 在非极性溶剂的存在下,用含有稀土类化合物,含卤素化合物和有机铝化合物的催化剂聚合1,3-丁二烯或丁二烯衍生物,制备具有高1,4-顺式含量的聚丁二烯 至少95%; 然后将聚氨酯基团引入聚丁二烯。 由此获得的高1,4-顺式聚丁二烯 - 聚氨酯共聚物表现出低的冷流和对二氧化硅或炭黑的高亲和性,并且具有优异的弹性和耐磨性:其中l,m,n和o表示重复的数目 单元,1为94〜99%,m为0〜5%,n为0〜5%,l + m + n = 100%,l /(m + n)为15〜100,o为1〜100% ; A和Y分别为C 1 -C 20烷基或芳基。
    • 10. 发明授权
    • Method for preparing high 1,4-cis polybutadiene having controlled cold flow
    • 制备具有受控冷流的高1,4-顺式聚丁二烯的方法
    • US06908975B2
    • 2005-06-21
    • US10653542
    • 2003-09-02
    • Young Chan JangPil Sung KimShin HanGwang Hoon KwagSeung Hwon Lee
    • Young Chan JangPil Sung KimShin HanGwang Hoon KwagSeung Hwon Lee
    • C08F36/06C08F136/06
    • C08F136/06C08F4/545
    • The present invention relates to a method for preparing a high 1,4-cis polybutadiene having a controlled cold flow and, more particularly, to a novel method for preparing a high 1,4-cis polybutadiene having a controlled cold flow that involves initiating polymerization of a 1,3-butadiene in the presence of a non-polar solvent using, as a polymerization catalyst, a complex prepared by mixing a neodymium compound with or without a conjugated diene compound, a halogenated organoaluminum compound or a halogenated organic compound, and an organoaluminum compound irrespective of the addition order of the catalyst; and adding an organoborane compound as a cold flow controller of 1,4-cis polybutadiene after a predetermined time of the polymerization. Accordingly, a high 1,4-cis polybutadiene having an efficiently controlled cold flow can be prepared without causing a significant increase in the Mooney viscosity (molecular weight), an odor (bad smell), and a reduction in 1,4-cis content and polymerization yield.
    • 本发明涉及一种制备具有受控冷流的高1,4-顺式聚丁二烯的方法,更具体地说,涉及一种制备具有控制冷流的高1,4-顺式聚丁二烯的新方法,其涉及引发聚合 使用作为聚合催化剂的非极性溶剂存在下的1,3-丁二烯,通过将钕化合物与或不与共轭二烯化合物,卤化有机铝化合物或卤化有机化合物混合制备的络合物和 有机铝化合物,而不考虑催化剂的加成顺序; 并在预定的聚合时间之后加入有机硼烷化合物作为1,4-顺式聚丁二烯的冷流控制器。 因此,可以制备具有有效控制的冷流的高的1,4-顺式聚丁二烯,而不会导致门尼粘度(分子量),气味(难闻气味)的显着增加和1,4-顺式含量的降低 和聚合产率。