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公开(公告)号:US20210309676A1
公开(公告)日:2021-10-07
申请号:US17267601
申请日:2019-07-25
IPC分类号: C07F7/28 , C08F210/06 , C07F3/02 , C07F9/94
摘要: A solid catalyst component for the polymerization of olefins CH2═CHR in which R is hydrogen or a hydrocarbon radical with 1-12 carbon atoms, made from or containing Mg, Ti, Bi, halogen and an electron donor obtained from a process including the steps:
(a) dissolving a Mg(OR)2 compound wherein R groups, equal to or different from each other, are C1-C15 hydrocarbon groups optionally containing a heteroatom selected from O, N and halogen, in an organic liquid medium, thereby forming a first liquid mixture; (b) contacting the first liquid mixture (a) with TiCl4, thereby forming a second liquid mixture absent a solid phase, and (c) subjecting the second liquid mixture (b) to conditions, whereby solid catalyst particles are formed, wherein (i) a Bi compound and (ii) a bidentate electron donor compound are present in one or more of steps (a) to (c) and/or contacted with the solid catalyst particles obtained from (c).-
公开(公告)号:US20190248930A1
公开(公告)日:2019-08-15
申请号:US16337779
申请日:2017-09-25
IPC分类号: C08F10/02
CPC分类号: C08F10/02 , C08F210/16 , C08F2410/01 , C08F210/08 , C08F2500/12 , C08F4/651 , C08F4/6494 , C08F4/6567
摘要: A process for the preparation of a solid catalyst component for the homo or copolymerization of olefins, wherein the solid catalyst component is made from or contains Mg, Ti, halogen and an electron donor selected from cycloalkyl ethers, wherein the process includes the steps of (a) dissolving a Mg based compound and a TiCl3 based compound in a liquid medium further made from or containing a cycloalkyl ether and a compound of formula R2OH where R2 is a C1-C20 hydrocarbon group, in which the Ti/Mg molar ratio ranges from 0.1 to 0.5, the cycloalkyl ether/Mg ratio ranges from 1 to 4 and the ROH/Mg molar ratio ranges from 1 to 4; and (b) adding, to the solution coming from step (a), SiCl4 in an amount such that the R2OH/SiCl4 molar ratio ranges from 0.5 to 1.5 and maintaining the temperature in the range 50-150° C. thereby precipitating the solid catalyst component particles.
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公开(公告)号:US20230002516A1
公开(公告)日:2023-01-05
申请号:US17780177
申请日:2020-11-28
发明人: SIMONA GUIDOTTI , DARIO LIGUORI , GIAMPIERO MORINI
摘要: A catalyst for the polymerization of olefins made from or containing (a) a solid catalyst component containing Mg, Ti and optionally an internal electron donor compound (ID), (b) an aluminum alky compound, and (c) an external electron donor (ED) selected from non-aromatic diazo compounds.
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公开(公告)号:US20190284316A1
公开(公告)日:2019-09-19
申请号:US16317676
申请日:2017-07-07
IPC分类号: C08F210/16
摘要: A catalyst component for the polymerization of olefins, comprising Ti, Mg, halogen, an electron donor (ID) selected from the group consisting of aliphatic cyclic ethers and alkyl esters of aliphatic monocarboxylic acids and a compound of a metal selected from the group consisting of Zn and Cu, wherein the catalyst component is devoid of Zn—C or Cu—C bonds and the Mg/Ti molar ratio ranges from 4.0 to 50.0.
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公开(公告)号:US20210170380A1
公开(公告)日:2021-06-10
申请号:US16771845
申请日:2018-12-12
发明人: SIMONA GUIDOTTI , DARIO LIGUORI , GIAMPIERO MORINI
摘要: A Mg compound based catalyst precursor made from or containing up to 50% by mols, with respect to Mg, of a compound of formula K(OR1) wherein R1 is H or a C1-C10 hydrocarbon group. When treated with transition metal compounds, the precursor is converted into catalyst with high activity in olefin polymerization.
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公开(公告)号:US20200071429A1
公开(公告)日:2020-03-05
申请号:US16610794
申请日:2018-04-27
IPC分类号: C08F4/655 , C08F210/16 , C08F2/34 , C08F4/651
摘要: A solid catalyst component (i) made from or containing a titanium compound, a magnesium compound and an ether, is activated by using two different aluminum alkyl compounds (ii) and (iii) in sequence and under specific molar ratios relative to each other and to the ether of the solid catalyst component (i).
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公开(公告)号:US20170218100A1
公开(公告)日:2017-08-03
申请号:US15514871
申请日:2015-09-22
发明人: PEITRO BAITA , TIZIANO DALL'OCCO , MARIA DI DIEGO , DARIO LIGUORI , LORELLA MARTURANO , GABRIELE MEI , GIAMPIERO MORINI , ROBERTA PICA
IPC分类号: C08F110/02
CPC分类号: C08F110/02 , C08F2410/02 , C08F2500/12 , C08F2500/18 , C08F4/6494 , C08F4/6493 , C08F4/6492 , C08F4/6543
摘要: The present disclosure provides a catalyst system made from or containing: (A) a solid catalyst component made from or containing (i) a titanium compound supported on a magnesium dichloride; (B) an aluminum alkyl compound; and (C) a halogenated organic ester of formula A-COOR, wherein R is a C1-C10 hydrocarbon group and A is a C1-C15 saturated or unsaturated hydrocarbon group in which at least one of the hydrogen atoms is replaced by a chlorine atom. The present disclosure also provides a process for preparing an olefinic polymer, including a polymerization step of polymerizing an olefin in the presence of the catalyst system. The present disclosure also provides an olefinic polymer made therefrom.
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公开(公告)号:US20170073444A1
公开(公告)日:2017-03-16
申请号:US15309042
申请日:2015-05-06
发明人: FABRIZIO PIEMONTESI , CAROLINE CATHELIN , SIMONA GUIDOTTI , DARIO LIGUORI , GIAMPIERO MORINI , DAVIDE TARTARI , GIANNI VITALE
IPC分类号: C08F210/06
CPC分类号: C08F210/06 , C08F210/16 , C08F2500/04 , C08F2500/12 , C08F2500/26 , C08F4/6574
摘要: The present disclosure relates to propylene-ethylene copolymers comprising an ethylene content of 0.1-10% by weight, a molecular weight distribution (MWD), expressed in terms of Mw/Mn, of greater than 3.0 and a xylene soluble (XS) fraction content defined by values that fall below the line given by the equation XS=1.0296·e0.435C2. The propylene-ethylene copolymers advantageously exhibit high transparency and low melting temperatures.
摘要翻译: 本公开内容涉及丙烯 - 乙烯共聚物,其包含乙烯含量为0.1-10重量%,分子量分布(MWD),以Mw / Mn表示,大于3.0,二甲苯可溶(XS)部分含量 由低于由公式XS = 1.0296·e0.435C2给出的线的值定义。 丙烯 - 乙烯共聚物有利地表现出高透明度和低熔融温度。
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公开(公告)号:US20220298343A1
公开(公告)日:2022-09-22
申请号:US17642277
申请日:2020-08-31
IPC分类号: C08L23/12
摘要: A polypropylene composition made from or containing: A) from 60 to 90 wt %, based upon the total weight of the polypropylene composition, of a fraction insoluble in xylene at 25° C., is made from or containing more than 80% wt of propylene units, and B) from 10 to 40 wt %, based upon the total weight of the polypropylene composition, of a fraction soluble in xylene at 25° C. is made from or containing a copolymer of propylene and ethylene having an average content of ethylene derived units from 30.0 wt % to 55.0 wt %, wherein the fraction when subjected to GPC fractionation and continuous IR analysis for determining the ethylene content of the eluted fractions (GPC-IR analysis), shows that the content of ethylene increases along with the Mw for fractions having Mw higher than the average.
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公开(公告)号:US20220298272A1
公开(公告)日:2022-09-22
申请号:US17642460
申请日:2020-08-27
发明人: FABRIZIO PIEMONTESI , ALESSANDRO MIGNOGNA , DARIO LIGUORI , GIAMPIERO MORINI , TIZIANO DALL'OCCO , GIANNI VITALE
摘要: A solid catalyst component for the polymerization of olefins made from or containing a magnesium halide, a titanium compound having at least a Ti-halogen bond, a first electron donor compound selected from 1,3 diethers (DE), and a second electron donor compound selected from dicarbamates (DC), wherein the first and second electron donor compounds are present in a molar ratio DE:DC ranging from 4.5:1 to 20:1.
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