公开(公告)号：US6160071A

公开(公告)日：2000-12-12

申请号：US876864

申请日：1997-06-16

申请人： Maurizio Galimberti ,  Luigi Resconi ,  Enrico Albizzati

发明人： Maurizio Galimberti ,  Luigi Resconi ,  Enrico Albizzati

IPC分类号： C08F4/642 ,  C08F4/42 ,  C08F4/60 ,  C08F10/00 ,  C08F210/16 ,  C08F210/18 ,  C08J5/00 ,  C08F10/04

CPC分类号： C08F210/16 ,  Y10S526/943 ,  C08F2/14 ,  C08F210/18 ,  C08F2500/03 ,  C08F2500/08 ,  C08F2500/17 ,  C08F2500/20 ,  C08F2500/21 ,  C08F210/08

摘要： Amorphous copolymers of ethylene with .alpha.-olefins and optionally minor amounts of polyenes are disclosed, having the following characteristics:(A) the % by mole content of .alpha.-olefin in the copolymer (%.alpha.) and the ratio between the molar amount of .alpha.-olefin diads and the molar content of .alpha.-olefin in the copolymer (.alpha..alpha./.alpha.) satisfy the following relationship:(%.alpha.)-250(.alpha..alpha./.alpha.).gtoreq.10(B) less than 2% of the CH.sub.2 groups in the polymeric chain are in sequences (CH.sub.2).sub.n, wherein n is an even number.These copolymers are obtainable by operating in the presence of particular metallocene-based catalysts having two fluorenyl groups joined together through a bridging group.

摘要翻译： 公开了乙烯与α-烯烃和任选的少量多烯的无定形共聚物，具有以下特征：（A）共聚物中α-烯烃的摩尔％摩尔比（％α）和α的摩尔量之比 α-烯烃二烷基和α-烯烃在共聚物中的摩尔含量（αα/α）满足以下关系：（％α）-250（αα/α）> / = 10（B）小于 聚合物链中的CH 2基团是（CH 2）n序列，其中n是偶数。 这些共聚物可通过在具有通过桥连基团连接在一起的两个芴基的特定茂金属基催化剂存在下操作而获得。

公开(公告)号：US5391672A

公开(公告)日：1995-02-21

申请号：US70648

申请日：1993-06-01

申请人： Enrico Albizzati ,  Luigi Resconi ,  Adolfo Zambelli

发明人： Enrico Albizzati ,  Luigi Resconi ,  Adolfo Zambelli

IPC分类号： B67B20060101 ,  C08F110/08 ,  C08F110/14 ,  C08F210/14 ,  C08F210/08

CPC分类号： C08F110/08 ,  C08F110/14

摘要： Syndiotactic polymers of alpha-olefins selected from the group consisting of 1-butene, 4-methyl-1-pentene and 4-methyl-1-hexene and a method of preparation thereof by polymerizing said olefins with catalysts obtained from specific Zr or Hf cyclopentadienyl compounds and aluminoxane compounds.

摘要翻译： 选自1-丁烯，4-甲基-1-戊烯和4-甲基-1-己烯的α-烯烃的间同立构聚合物及其制备方法通过将特定的Zr或Hf环戊二烯 化合物和铝氧烷化合物。

公开(公告)号：US5142005A

公开(公告)日：1992-08-25

申请号：US133055

申请日：1987-12-15

申请人： Enrico Albizzati ,  Umberto Giannini ,  Giovanni Giunchi ,  Romano Mazzocchi ,  Luigi Resconi

发明人： Enrico Albizzati ,  Umberto Giannini ,  Giovanni Giunchi ,  Romano Mazzocchi ,  Luigi Resconi

IPC分类号： C08F12/08 ,  C08F4/60 ,  C08F4/64 ,  C08F4/642 ,  C08F4/6592 ,  C08F12/00 ,  C08F12/04

CPC分类号： C08F12/04 ,  C08F10/00 ,  C08F12/08 ,  Y10S526/941

摘要： A process for the production of primarily syndiotactic vinyl aromatic polymers by polymerizing or copolymerizing vinyl aromatic monomers such as styrene or styrene derivatives in the presence of a catalyst system comprising the product of the reaction between:a) a compound of a transition metal (M) different from titanium and containing at least a bond M-O, M-C, M-N, M-P, M-S or M-halogen, andb) an organoaluminum compound containing at least an oxygen atom bound to the aluminum atom or bound between two aluminum atoms.Compound a) can be used as such or may be supported on a suitable carrier.

公开(公告)号：US5126303A

公开(公告)日：1992-06-30

申请号：US471902

申请日：1990-01-29

申请人： Luigi Resconi ,  Umberto Giannini ,  Enrico Albizzati

发明人： Luigi Resconi ,  Umberto Giannini ,  Enrico Albizzati

IPC分类号： C08F4/82 ,  C08F4/60 ,  C08F4/642 ,  C08F4/659 ,  C08F4/6592 ,  C08F10/00 ,  C08F110/02

CPC分类号： C08F10/00 ,  C08F4/65912 ,  C08F4/65922 ,  Y10S526/943

摘要： Catalysts for the polymerization of olefins, comprising the product of the reaction between:A) a cyclopentadienyl compound of Ti, Zr or Hf;B) an alumoxane compound of formula: ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, the same or different from each other, are alkyl, alkenyl or alkylaryl radicals having 2 to 20 carbon atoms.

公开(公告)号：US5084540A

公开(公告)日：1992-01-28

申请号：US616767

申请日：1990-11-20

申请人： Enrico Albizzati ,  Umberto Zucchini ,  Arrigo Soverini ,  Illaro Cuffiani

发明人： Enrico Albizzati ,  Umberto Zucchini ,  Arrigo Soverini ,  Illaro Cuffiani

IPC分类号： C08F2/00 ,  C08F2/34 ,  C08F4/00 ,  C08F4/60 ,  C08F10/00 ,  C08F210/00 ,  C08F210/02 ,  C08F210/16

CPC分类号： C08F210/16

摘要： Crystalline copolymers of ethylene and alpha-olefins CH.sub.2 .dbd.CHR in which R is an alkyl group having 2 to 8 carbon atoms, containing 0.5 to 3% by moles of polymerized alpha-olefin and having a density lower than 0.945 g/cc are obtained by polymerizing, in the gas phase, mixtures of ethylene and the alpha-olefins in contact with catalysts prepared from (1) Ti compounds supported on Mg halides and (2) organometallic compounds, which are active in the polymerization of ethylene but exhibit little, if any, activity in the homo- or copolymerization of the alpha-olefins.

摘要翻译： 乙烯和α-烯烃CH 2 = CHR的结晶共聚物，其中R为具有2-8个碳原子的烷基，含有0.5-3％（摩尔）聚合的α-烯烃，密度低于0.945g / cc，通过 在气相中聚合乙烯和α-烯烃的混合物与由（1）负载在卤化镁上的Ti化合物和（2）有机金属化合物制备的催化剂接触，所述有机金属化合物在乙烯的聚合中是有活性的，但是如果 任何在α-烯烃的均聚或共聚中的活性。

公开(公告)号：US4968755A

公开(公告)日：1990-11-06

申请号：US143321

申请日：1988-01-13

申请人： Luciano Canova ,  Umberto Giannini ,  Enrico Albizzati

发明人： Luciano Canova ,  Umberto Giannini ,  Enrico Albizzati

IPC分类号： C08F8/30 ,  C08F8/34

CPC分类号： C08F8/30 ,  C08F2800/20

摘要： Imidized acrylic polymers obtained by means of the reaction of an acrylic resin in the molten state, with at least one modifying agent having the general formula:R--X--NH--R' (I)wherein:R and R' are either equal to, or different from, each other and represent hydrogen or an alkyl, cycloalkyl; aryl or alkylaryl radical containing from 1 to 20 carbon atoms, andX is a bifunctional radical selected from the group consisting of: --CO--, --CONH--, --NHCO--, --OCO--, --SO.sub.2 --, --C.sub.6 H.sub.4 SO.sub.2 --.

公开(公告)号：US4889896A

公开(公告)日：1989-12-26

申请号：US289824

申请日：1988-12-27

申请人： Luciano Canova ,  Umberto Giannini ,  Enrico Albizzati ,  Italo Borghi ,  Antonio Proto

发明人： Luciano Canova ,  Umberto Giannini ,  Enrico Albizzati ,  Italo Borghi ,  Antonio Proto

IPC分类号： C08F8/30

CPC分类号： C08F8/30 ,  C08F2800/20

摘要： The invention concerns a process for the imidization of copolymers of maleic anhydride with vinyl-aromatic monomers using an urea as the imidizing agent.

公开(公告)号：US4855272A

公开(公告)日：1989-08-08

申请号：US224179

申请日：1988-07-25

申请人： Enrico Albizzati

发明人： Enrico Albizzati

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

CPC分类号： C08F10/00

摘要： Solid components of catalysts for the (co)polymerization of ethylene, or precursors of such components are prepared by treating an (a) emulsion in a perfluoropolyether of a liquid compound of magnesium, of titanium or of another transition metal, or of solutions thereof, possibly using an electron-donor compound, with (b) a reducing and/or halogenating agent capable of forming an insoluble solid product, after which, if such a product is a precursor of the catalytic component, it is treated with a tetravalent-titanium halide, or with a halide of another transition metal.

公开(公告)号：US4294721A

公开(公告)日：1981-10-13

申请号：US134773

申请日：1980-03-28

申请人： Giuliano Cecchin ,  Enrico Albizzati

发明人： Giuliano Cecchin ,  Enrico Albizzati

IPC分类号： C08F4/00 ,  B01J31/38 ,  B01J37/02 ,  C08F4/02 ,  C08F4/60 ,  C08F4/64 ,  C08F10/00

CPC分类号： C08F4/022 ,  C08F10/00

摘要： A process for preparing components of catalysts for the polymerization of alpha-olefins and mixtures thereof with ethylene is disclosed. The process comprises reacting a Ti compound having at least oe Ti-halogen linkage with either (1) a mixture of a hydrocarbyl electron-donor compound ED which does not contain active H atoms and an adduct (a) of a Mg dihalide with at least one hydrocarbyl electron-donor compound AH containing active H atoms, or (2) with an adduct (b) of at least a Mg dihalide with a compound AH and ED defined in (1), adducts (a) and (b) being obtained without co-grinding of the Mg dihalide with compounds AH and ED.

摘要翻译： 公开了一种制备用于α-烯烃聚合的催化剂组分及其与乙烯的混合物的方法。 该方法包括使具有至少一个钛卤素键的Ti化合物与（1）不含活性H原子的烃基电子给体化合物ED和二卤化镁的加合物（a）的混合物至少 一种含有活性H原子的烃基电子给体化合物AH，或者（2）与（1）中定义的化合物AH和ED的加合物（a）和（b）的至少二卤化镁的加合物（b） 没有将二卤化镁与化合物AH和ED共同研磨。

公开(公告)号：US4250104A

公开(公告)日：1981-02-10

申请号：US916723

申请日：1978-06-19

申请人： Umberto Giannini ,  Enrico Albizzati ,  Sandro Parodi

发明人： Umberto Giannini ,  Enrico Albizzati ,  Sandro Parodi

IPC分类号： C08F4/00 ,  B01J31/14 ,  B01J31/38 ,  B01J37/00 ,  C08F4/60 ,  C08F4/62 ,  C08F4/64 ,  C08F10/00 ,  C07F5/06

CPC分类号： C08F10/00 ,  Y10S526/906

摘要： There are disclosed new starting components for use in preparing catalysts for the polymerization and copolymerization of olefins. The new starting components are compounds having the general formulae R.sub.2 AlOR" and/or RAl(OR").sub.2, in which R represents alkyl radicals containing 1 to 12 carbon atoms and R" has one of the following structures: ##STR1##

摘要翻译： 公开了用于制备用于烯烃聚合和共聚的催化剂的新的起始组分。 新的起始组分是具有通式R2AlOR“和/或RA1（OR”）2的化合物，其中R表示含有1至12个碳原子的烷基，R“具有以下结构之一：