申请人:Montell Technology Company BV
公开号:US05747621A1
公开(公告)日:1998-05-05
Fractionable, reactor blend polypropylenes, directly obtainable from the polymerization reaction of propylene, having: (a) content of isotactic pentads (mmmm) comprised between 25 and 85%; (b) ratio M.sub.w,/M.sub.n <5; containing from 10 to 70% by weight of a fraction soluble in boiling diethyl ether, said fraction having a content of isotactic pentads (mmmm) comprised between 5 and 25%, and from 30 to 90% by weight of a boiling n-heptane-insoluble fraction, soluble in xylene at 135.degree. C., said fraction having a content of isotactic pentads (mmmm) comprised between 50 and 99%, are disclosed. These polymers are suitable as thermoplastic-elastomeric materials. A process for the preparation of these polymers and a process for the preparation of 2-aryl-substituted indenyl metallocene ligands is also disclosed.
可分离、反应器混合的聚丙烯,直接从丙烯聚合反应中获得,具有以下特征:(a)等规五元组含量(mmmm)在25%至85%之间;(b) M.sub.w,/M.sub.n比值小于5;包含10%至70%重量的在沸腾的乙醚中可溶的分数,该分数含有等规五元组(mmmm)在5%至25%之间,以及30%至90%重量的在正庚烷中不溶的分数,在135℃下可溶于二甲苯,该分数含有等规五元组(mmmm)在50%至99%之间。这些聚合物适用于热塑性弹性材料。还公开了一种制备这些聚合物的方法和一种制备2-芳基取代茚基金属环配体的方法。