公开(公告)号：US07081505B2

公开(公告)日：2006-07-25

申请号：US10483415

申请日：2002-07-10

申请人： Anna Sommazzi ,  Francesco Masi ,  Giampietro Borsotti ,  Roberto Santi ,  Fausto Calderazzo ,  Guido Pampaloni ,  Vincenzo Passarelli

发明人： Anna Sommazzi ,  Francesco Masi ,  Giampietro Borsotti ,  Roberto Santi ,  Fausto Calderazzo ,  Guido Pampaloni ,  Vincenzo Passarelli

IPC分类号： C08F4/44 ,  C08F4/6192 ,  B01J31/14

CPC分类号： C08F10/00 ,  C08F4/65927 ,  Y10S526/943 ,  C08F4/65912

摘要： An organometallic composition which can be used as activating component in a metallocene catalyst for the (co)polymerization of α-olefins, comprises: (A) a fluorinated di-unsaturated cyclic compound, having a relatively acid hydrogen atom, (B) an organometallic compound sufficiently basic to react with the acid hydrogen of the above compound (A), and (C) a polar aprotic organic compound, not containing metallic atoms, having a dielectric constant, in the pure state, equal to or greater than 2, and a weak coordinating capacity. Said composition allows a metallocene catalytic system of the ionic type to be obtained, with a high activity in the (co)polymerization of olefins and a reduced content of metallic residue in the polymeric product thus obtained.

摘要翻译： 可用作α-烯烃（共）聚合的茂金属催化剂中的活化组分的有机金属组合物包括：（A）具有相对酸性氢原子的氟化二不饱和环状化合物，（B）有机金属 具有足够碱性的化合物与上述化合物（A）的酸性氢反应，和（C）在纯状态下不具有介电常数的金属原子的极性非质子有机化合物等于或大于2，以及 协调能力弱。 所述组合物允许获得离子型茂金属催化体系，在烯烃的（共）聚合中具有高活性，并且由此获得的聚合物中的金属残余物含量降低。