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1. 发明申请

US20060149010A1 Catalyst for synthesizing high trans polymers 失效
标题翻译：用于合成高反式聚合物的催化剂
公开(公告)号：US20060149010A1
公开(公告)日：2006-07-06
申请号：US11311495
申请日：2005-12-19
申请人： Adel Halasa , Wen-Liang Hsu , Chad Jasiunas , Laurie Austin
发明人： Adel Halasa , Wen-Liang Hsu , Chad Jasiunas , Laurie Austin
IPC分类号： C08F4/56
CPC分类号： C08F36/06 , C08F4/484 , C08F4/52 , C08F4/48 , C08F4/50
摘要： The process and catalyst of this invention can be utilized to synthesize homo and copolymers of conjugated diene monomers and vinyl aromatic monomers having high trans contents of greater than 60% with low melting points. These homo and copolymers of conjugated diene monomers and vinyl aromatic monomers can be utilized in tire tread and sidewall rubbers that exhibit outstanding wear and tear characteristics in the tread and excellent flexing properties in the sidewall. The rubber polymers of this invention are made utilizing an improved catalyst system. This catalyst system is comprised of (a) organo aluminum compounds, (b) organo lithium compounds, (c) a barium compound selected from barium salts of (i) di(ethylene glycol) ethyl ether, (ii) di(ethylene glycol) propyl ether, (iii) di(ethylene glycol) hexyl ether, (iv) di(N,N-dimethyl amino glycol) ethyl ether, (v) menthol and thymol in the presence of polar modifier consisting of water, alcohols, amines, thiols, phosphates and phosphites. The trans polymers and copolymers of this invention made with the above catalyst system typically have a glass transition temperature ranging from −97° C. to −40° C., a melt temperature ranging from −30° C. to +30° C., and a number average molecular weight from 20,000 to 250,000. The inclusion of such polar modifiers in the barium catalyst system results in a high styrene content in copolymerization, a high trans content, and high molecular weight. Copolymers of conjugated diolefin monomers and vinyl aromatic monomers made with the catalyst system of this invention also have a tapered macrostructure.
摘要翻译：本发明的方法和催化剂可用于合成共轭二烯单体和具有高反式含量大于60％的低熔点的乙烯基芳族单体的均聚物和共聚物。共轭二烯单体和乙烯基芳族单体的这些均聚物和共聚物可用于轮胎胎面和侧壁橡胶，其在胎面中表现出优异的耐磨损性能和优异的侧壁弯曲性能。使用改进的催化剂体系制备本发明的橡胶聚合物。该催化剂体系包括（a）有机铝化合物，（b）有机锂化合物，（c）选自（i）二（乙二醇）乙醚的钡盐，（ii）二（乙二醇）丙基醚，（iii）二（乙二醇）己醚，（iv）二（N，N-二甲基氨基乙二醇）乙醚，（v）薄荷醇和百里酚在由水，醇，胺，硫醇，磷酸盐和亚磷酸盐。用上述催化剂体系制备的本发明的反式聚合物和共聚物通常具有-97℃至-40℃的熔融温度范围为-30℃至+ 30℃的玻璃化转变温度。，数均分子量为20,000〜250,000。在钡催化剂体系中包含这种极性改性剂导致共聚反应中苯乙烯含量高，反式含量高，分子量高。用本发明的催化剂体系制得的共轭二烯烃单体和乙烯基芳族单体的共聚物也具有锥形宏观结构。

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