-
公开(公告)号：US4265785A
公开(公告)日：1981-05-05
申请号：US65430
申请日：1979-08-10
申请人： Umberto Giannini , Paolo Longi , Domenico Deluca , Angelo Pricca
发明人： Umberto Giannini , Paolo Longi , Domenico Deluca , Angelo Pricca
摘要： New, highly active catalysts for the polymerization of ethylene and mixtures of ethylene with higher alpha-olefins and/or diolefins, are disclosed. The catalysts are prepared by mixing (a) hydrides or organometallic compounds of metals belonging to Groups I, II or III of the Mendelycev Periodic Table with (b) the products obtained by contacting titanium compounds with activated anhydrous halides of magnesium or manganese, diluted with anhydrous compounds of metals belonging to Group III or IV of said Periodic Table, and which are different from either (a) or the titanium compound of (b).
摘要翻译： 公开了用于乙烯聚合和乙烯与高级α-烯烃和/或二烯烃的混合物的新型高活性催化剂。 催化剂通过将（a）属于门多塞夫周期表第I，II或III族的金属的氢化物或有机金属化合物与（b）通过使钛化合物与镁或锰的活性无水卤化物接触而获得的产物来制备， 属于所述周期表III或IV族的金属的无水化合物，它们不同于（a）或（b）的钛化合物。
-
公开(公告)号：US4187196A
公开(公告)日：1980-02-05
申请号：US955762
申请日：1978-10-30
CPC分类号： C08F10/00 , C08F4/022 , Y10S526/906
摘要： There is disclosed a process for the stereoregular polymerization of alpha-olefins or mixtures thereof with ethylene, conducted in the presence of highly active and stereospecific new catalysts. The catalysts are obtained from the reaction of a particular Al-alkyl compound which is at least in part in the form of a complex and/or a substitution reaction product with an ester of an oxygenated organic or inorganic acid, with a supported component characterized by having surface area exceeding certain values or showing a particular X-rays spectrum, and obtained by contacting a Ti halogenated compound, preferably in the form of a complex with an electron-donor compound, with a support comprising a Mg or Mn bihalide in an activated condition.In the catalysts the ratio between the Ti compound, expressed in Ti g-atoms, and the g moles of the ester and the electron-doner compound, when present, is lower than 0.3.
摘要翻译： 公开了在高活性和立体特异性新型催化剂存在下进行的α-烯烃或其与乙烯的混合物的立构规整聚合的方法。 催化剂是由至少部分以络合物和/或取代反应产物形式的特定的Al-烷基化合物与含氧有机或无机酸的酯与负载的组分的反应获得的， 其表面积超过某些值或显示特定的X射线光谱，并且通过使配合物与电子给体化合物形式的Ti卤化化合物与包含Mg或Mn二卤化物的载体接触而被活化 条件。 在催化剂中，当Ti原子表示的Ti化合物与酯和电子给体化合物的g摩尔比（当存在时）之比小于0.3。
-
公开(公告)号：US4107413A
公开(公告)日：1978-08-15
申请号：US779739
申请日：1977-03-21
CPC分类号： C08F10/00 , C08F4/022 , Y10S526/906
摘要： There is disclosed a process for the stereoregular polymerization of alpha olefins or mixtures thereof with ethylene conducted in the presence of highly active and stereospecific new catalysts.The catalysts are obtained from the reaction of a component (A) which is a particular Al-alkyl compound that is at least in part in the form of an addition and/or a substitution reaction product with an electron-donor compound free from ester groups of oxygenated organic and inorganic acids, with a component (B) which is a supported component characterized by having surface area exceeding certain values or by showing a particular X-rays spectrum, and prepared by contacting a halogenated Ti compound, preferably in the form of a complex with an electron-donor compound, with a support comprising a Mg or Mn dihalide in an active state.In the catalysts the ratio between the Ti compound expressed in Ti g-atoms and the g-moles of the electron-donor compounds is lower than 0.3.
摘要翻译： 公开了在高活性和立体特异性新型催化剂存在下，α-烯烃或其与乙烯的混合物的立构规整聚合的方法。
-
-
搜索结果
43 条记录 (耗时 0.027 秒)
