公开(公告)号：US5068213A

公开(公告)日：1991-11-26

申请号：US675234

申请日：1991-03-26

申请人： Enrico Albizzati ,  Giampiero Morini ,  Umberto Giannini ,  Luisa Barino ,  Raimondo Scordamaglia ,  BarbePier C. ,  Luciano Noristi

发明人： Enrico Albizzati ,  Giampiero Morini ,  Umberto Giannini ,  Luisa Barino ,  Raimondo Scordamaglia ,  BarbePier C. ,  Luciano Noristi

IPC分类号： C08F4/658 ,  C08F4/60 ,  C08F4/646 ,  C08F4/649 ,  C08F4/652 ,  C08F4/654 ,  C08F10/00 ,  C08F110/06

CPC分类号： C08F10/00

摘要： Catalyst components for the polymerization of olefins comprising a titanium halide or alkoxyhalide and an electron-donor compound selected from ethers having two or more ether groups and containing at least one heteroatom selected from the group consisting of N, S, P, Si, non-ether O and halogen atoms or at least one double bond, or both at least one heteroatom and at least one double bond, supported on a magnesium halide in active form.Catalysts obtained from said catalyst components and an Al-alkyl compound, as well as catalysts obtained by the reaction of an Al-alkyl compound and an ether having the above defined characteristics with a solid catalyst component comprising a titanium halide or alkoxyhalide and an electron-donor compound having particular characteristics of extractability with Al-triethyl, supported on activated magnesium halide.

公开(公告)号：US4529716A

公开(公告)日：1985-07-16

申请号：US530703

申请日：1983-09-09

申请人： Viviano Banzi ,  Pier C. Barbe ,  Luciano Noristi

发明人： Viviano Banzi ,  Pier C. Barbe ,  Luciano Noristi

IPC分类号： C08F4/00 ,  C08F4/02 ,  C08F4/60 ,  C08F4/64 ,  C08F4/651 ,  C08F10/00

CPC分类号： C08F10/00

摘要： Catalyst components for the stereoregular polymerization of alpha-olefins, comprising a Ti halide and an electron-donor compound supported on an anhydrous magnesium dihalide and obtained by means of non-extractive treatments, with liquids having a dielectric constant at 20.degree. C. equal to or higher than 2, of compositions comprising an anhydrous Mg dihalide, the crystallites of which have an average size lower than 300 .ANG..The present invention refers to new catalyst components and the catalysts obtained therefrom for the polymerization of alpha-olefins Ch.sub.2 .dbd.CHR, wherein R is an alkyl radical with 1-4 C atoms or an aryl radical, and of mixtures of said alpha-olefins with minor amounts of ethylene.

摘要翻译： 用于α-烯烃的立体规则聚合的催化剂组分，其包含负载在无水二卤化镁上的Ti卤化物和电子给体化合物，并通过非萃取处理获得，其介电常数在20℃等于 或高于2的包含无水Mg二卤化物的组合物，其微晶的平均尺寸低于300安培姆。 本发明涉及新的催化剂组分和由此获得的用于α-烯烃Ch 2 = CHR聚合的催化剂，其中R是具有1-4个C原子的烷基或芳基，和所述α-烯烃与 少量乙烯。

公开(公告)号：US4380507A

公开(公告)日：1983-04-19

申请号：US324419

申请日：1981-11-24

申请人： Luciano Noristi ,  Giovanni Baruzzi

发明人： Luciano Noristi ,  Giovanni Baruzzi

IPC分类号： C08F4/00 ,  C08F4/60 ,  C08F4/64 ,  C08F4/654 ,  C08F10/00 ,  C08F10/02 ,  C08F4/02

CPC分类号： C08F10/02

摘要： Catalysts for polymerizing ethylene to high yields of polyethylene having a controlled particle size are disclosed. The catalysts are prepared from new catalyst-forming components which are the reaction products of solid halogenated titanium compounds, Grignard compounds and halogenating agents. Said components, on mixing with organometallic compounds of metals belonging to Groups I-III of the Mendelyeev Periodic Table result in the catalysts capable of polymerizing ethylene to polyethylene having a controlled particle size.

摘要翻译： 公开了用于将乙烯聚合成高收率的具有受控粒度的聚乙烯的催化剂。 催化剂是由固体卤化钛化合物，格氏化合物和卤化剂的反应产物的新催化剂形成组分制备的。 所述组分在与属于门多利夫周期表第I-III族的金属的有机金属化合物混合时产生能够使乙烯聚合成具有受控粒度的聚乙烯的催化剂。