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    • 2. 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。
    • 5. 发明授权
    • Process for preparing polybutadiene using catalyst with high activity
    • 使用高活性的催化剂制备聚丁二烯的方法
    • US6136931A
    • 2000-10-24
    • US433073
    • 1999-11-03
    • Young Chan JangGwang Hoon KwagA Ju KimSeung Hwon Lee
    • Young Chan JangGwang Hoon KwagA Ju KimSeung Hwon Lee
    • C08F4/14C08F4/54C08F136/06C08F4/52
    • C08F136/06
    • This invention relates to a process for preparing polybutadiene with high 1,4-cis content (over 97%) and high conversion (over 90%) in such a manner that 1,3-butadiene is polymerized using an aging catalyst, which has high homogeneity due to its excellent solubility in non-polar solvents, resulting in producing polybutadiene having low gel content and low solution viscosity. The aging catalyst is a mixture of a neodymium compound, an organoaluminum compound and a borontrifluoride complex, which is represented by the formula I or the formula II, in the presence or absence of a small portion of conjugated diene compound:Formula I is represented byBF.sub.3 OR.sub.1 R.sub.2wherein R.sub.1 and R.sub.2 can be the same or different, and are independent substituents, respectively which are alkyl, cycloalkyl, allyl, aryl or arylalkyl groups containing from 1 to 10 carbon atoms; andFormula II is represented by ##STR1## wherein R.sub.3 is an alkyl group containing from 2 to 10 carbon atoms.
    • 本发明涉及一种具有高1,4-顺式含量(超过97%)和高转化率(超过90%)的聚丁二烯的方法,使得使用老化催化剂聚合1,3-丁二烯,该催化剂具有高 均匀性由于其在非极性溶剂中的优异溶解度,导致生产具有低凝胶含量和低溶液粘度的聚丁二烯。 老化催化剂是在存在或不存在少量共轭二烯化合物的情况下由式I或式II表示的钕化合物,有机铝化合物和三氟化硼络合物的混合物:式I由 BF 3 OR 1 R 2,其中R 1和R 2可以相同或不同,并且分别是含有1至10个碳原子的烷基,环烷基,烯丙基,芳基或芳烷基的独立取代基; 式II表示为其中R 3为含有2至10个碳原子的烷基。