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1. 发明公开

EP0877035A1 Syndiotactic 1,2-polybutadiene synthesis 失效
标题翻译： Herstellung von syndiotactischem 1,2-Polybutadien
公开(公告)号：EP0877035A1
公开(公告)日：1998-11-11
申请号：EP98107598.9
申请日：1998-04-27
申请人： THE GOODYEAR TIRE & RUBBER COMPANY
发明人： Wong, Tang Hong , Cline, James Heber
IPC分类号： C08F136/06 , C08F4/70
CPC分类号： C08F136/06 , C08F4/7096
摘要： Syndiotactic 1,2-polybutadiene is a thermoplastic resin which has double bonds attached in an alternating fashion to its polymeric backbone. Films, fibers and molded articles can be made utilizing syndiotactic 1,2-polybutadiene. It can also be blended into rubbers and cocured therewith. In such applications, sometimes it is beneficial for the syndiotactic 1,2-polybutadiene to have more than one melting point. This invention discloses a process for preparing syndiotactic 1,2-polybutadiene having at least two different melting points which comprises: polymerizing 1,3-butadiene monomer in an aqueous medium in the presence of (1) a catalyst composition which is made by reacting (a) at least one cobalt compound selected from the group consisting of (i) β-diketone complexes of cobalt, (ii) β-keto acid ester complexes of cobalt, (iii) cobalt salts of organic carboxylic acids having 6 to 15 carbon atoms and (iv) complexes of halogenated cobalt compounds of the formula CoX n , wherein X represents a halogen atom and n represents 2 or 3, with an organic compound selected from the group consisting of tertiary amine alcohols, tertiary phosphines, ketones and N,N-dialkylamides, (b) at least one organoaluminum compound of the formula AlR 3 , wherein R represents a hydrocarbon radical of 1 to 6 carbon atoms and (c) at least one conjugated diene; (2) at least one member selected from the group consisting of carbon disulfide, phenyl isothiocyanate and xanthic acid; and (3) at least one melting-point regulator and (4) a sodium halide salt or a potassium halide salt.
摘要翻译：间同立构1,2-聚丁二烯是一种热塑性树脂，其具有以其交联方式连接到其聚合物主链的双键。膜，纤维和模制品可以利用间同立构1,2-聚丁二烯制备。它也可以混合到橡胶中并与其共混。在这种应用中，有时候间同立构1,2-聚丁二烯具有多于一个熔点是有益的。本发明公开了一种制备具有至少两个不同熔点的间规1,2-聚丁二烯的方法，该方法包括：在（1）催化剂组合物存在下，在水性介质中聚合1,3-丁二烯单体，所述催化剂组合物是通过使（ a）至少一种钴化合物，其选自（i）钴的β-二酮络合物，（ii）钴的β-酮酸酯络合物，（iii）具有6至15个碳原子的有机羧酸的钴盐和（iv）式CoXn的卤代钴化合物与其中X表示卤素原子并且n表示2或3的卤代钴化合物与选自叔胺醇，叔膦，酮和N，N-二甲基甲酰胺的有机化合物，二烷基酰胺，（b）至少一种式AlR 3的有机铝化合物，其中R表示1至6个碳原子的烃基和（c）至少一种共轭二烯; （2）选自二硫化碳，异硫氰酸苯酯和黄原酸中的至少一种; 和（3）至少一个熔点调节剂和（4）卤化钠盐或卤化钾盐。

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