公开(公告)号：US10011666B2

公开(公告)日：2018-07-03

申请号：US15514871

申请日：2015-09-22

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： Pietro Baita ,  Tiziano Dall'Occo ,  Maria Di Diego ,  Dario Liguori ,  Lorella Marturano ,  Gabriele Mei ,  Giampiero Morini ,  Roberta Pica

IPC: C08F110/02 ,  C08F4/649 ,  C08F2/34 ,  C08F2/38 ,  B01J8/24

CPC classification number: C08F110/02 ,  C08F2410/02 ,  C08F2500/12 ,  C08F2500/18 ,  C08F4/6494 ,  C08F4/6493 ,  C08F4/6492 ,  C08F4/6543

Abstract: 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.

公开(公告)号：US20150376303A1

公开(公告)日：2015-12-31

申请号：US14760949

申请日：2013-12-18

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： Massimo Covezzi ,  Gabriele Mei ,  Pietro Baita ,  Lorella Marturano

IPC: C08F10/02

CPC classification number: C08F10/02 ,  C08F2/005 ,  C08F2410/02 ,  C08F110/02 ,  C08F2500/12 ,  C08F2500/18 ,  C08F2500/24

Abstract: A process for the preparation of ethylene polymers comprising polymerizing ethylene, optionally with one or more α-olefin comonomers, in the presence of:(i) a solid catalyst component comprising titanium, magnesium, halogen and optionally an internal electron-donor compound, (ii) an aluminum alkyl compound, and (iii) an antistatic compound selected among the hydroxyesters with at least two free hydroxyl groups, wherein the weight ratio of aluminum alkyl compound to solid catalyst component is higher than 0.80 and the weight ratio of antistatic compound to aluminum alkyl compound is higher than 0.10.

Abstract translation: 一种用于制备乙烯聚合物的方法，包括在以下存在下聚合乙烯，任选与一种或多种α-烯烃共聚单体：（i）包含钛，镁，卤素和任选的内电子给体化合物的固体催化剂组分（ ii）铝烷基化合物，和（iii）选自具有至少两个游离羟基的羟基酯中​​的抗静电化合物，其中烷基铝化合物与固体催化剂组分的重量比高于0.80，抗静电化合物与 铝烷基化合物高于0.10。

公开(公告)号：US09938359B2

公开(公告)日：2018-04-10

申请号：US14760949

申请日：2013-12-18

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： Massimo Covezzi ,  Gabriele Mei ,  Pietro Baita ,  Lorella Marturano

IPC: C08F10/02 ,  C08F2/34 ,  C08F2/44 ,  C08F2/00 ,  C08F110/02

CPC classification number: C08F10/02 ,  C08F2/005 ,  C08F2410/02 ,  C08F110/02 ,  C08F2500/12 ,  C08F2500/18 ,  C08F2500/24

Abstract: A process for the preparation of ethylene polymers comprising polymerizing ethylene, optionally with one or more α-olefin comonomers, in the presence of:(i) a solid catalyst component comprising titanium, magnesium, halogen and optionally an internal electron-donor compound,(ii) an aluminum alkyl compound, and(iii) an antistatic compound selected among the hydroxyesters with at least two free hydroxyl groups,wherein the weight ratio of aluminum alkyl compound to solid catalyst component is higher than 0.80 and the weight ratio of antistatic compound to aluminum alkyl compound is higher than 0.10.

公开(公告)号：US10556972B2

公开(公告)日：2020-02-11

申请号：US16347124

申请日：2017-11-02

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： Pietro Baita ,  Massimo Covezzi ,  Maria Di Diego ,  Lorella Marturano ,  Antonio Mazzucco ,  Gabriele Mei ,  Roberta Pica

IPC: C08F110/02 ,  C08F210/02 ,  C08F2/34 ,  C08F10/02

Abstract: A gas-phase process for the homopolymerization or copolymerization of olefins carried out in the presence of a catalyst system formed by a contacting, in a liquid hydrocarbon and in the presence of hydrogen, (a) a solid catalyst component comprising Ti, Mg, and Cl, and optionally an internal electron donor compound, (b) an aluminum alkyl compound and optionally (c) an external donor compound.

公开(公告)号：US10155888B2

公开(公告)日：2018-12-18

申请号：US15400734

申请日：2017-01-06

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： Massimo Covezzi ,  Gabriele Mei ,  Maria Di Diego ,  Piero Gessi ,  Pietro Baita ,  Roberta Pica

IPC: C09J151/06 ,  C08F10/00 ,  C08F110/02 ,  B32B7/12 ,  B32B15/085 ,  B32B27/06 ,  C08L23/06 ,  C08L23/20 ,  C08L51/06 ,  C09J5/02 ,  C09J123/06 ,  C09J123/20

Abstract: The present technology relates to a method of introducing a supported antistatic compound that does not comprise a transition-metal-based catalyst component for use in an olefin polymerization reactor. In some embodiments, the methods disclosed herein avoid the formation of polymer agglomerates in the reactor and minimize potentially negative effects on catalyst yield.

公开(公告)号：US10077322B2

公开(公告)日：2018-09-18

申请号：US15533856

申请日：2015-12-01

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： Pietro Baita ,  Tiziano Dall'Occo ,  Maria Di Diego ,  Dario Liguori ,  Lorella Marturano ,  Andreas Maus ,  Gabriele Mei ,  Gerhardus Meier ,  Giampiero Morini ,  Roberta Pica ,  Ulf Schueller

IPC: C08F4/649 ,  C08F4/654 ,  C08F110/02 ,  C08F210/02 ,  C08F2/34

CPC classification number: C08F2/34 ,  C08F4/6493 ,  C08F4/6494 ,  C08F110/02 ,  C08F2410/02 ,  C08F2500/12 ,  C08F2500/18 ,  C08F4/6543 ,  C08F210/02

Abstract: The present disclosure provides a gas-phase polymerization process for preparing polyethylene, wherein halogenated alcohols in combination with a Ti based catalyst component and aluminum alkyls as co-catalyst suppress ethane formation or increase polymerization activity.