公开(公告)号：US20190292281A1

公开(公告)日：2019-09-26

申请号：US16468628

申请日：2017-12-12

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： GIANNI COLLINA ,  MARIA DI DIEGO ,  BENEDETTA GADDI ,  PIERO GESSI ,  LORELLA MARTURANO ,  GIAMPIERO MORINI

IPC: C08F110/02

Abstract: A catalyst component made from or containing Ti, Mg, chlorine, an amount of a first internal donor selected from esters of aliphatic monocarboxylic acids (EAA), and an amount of a second internal donor selected from cyclic ethers (CE), wherein the EAA/CE molar ratio ranges from 0.02 to less than 20.

公开(公告)号：US20170327603A1

公开(公告)日：2017-11-16

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: C08F2/34 ,  C08F110/02 ,  C08F4/649

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.

公开(公告)号：US20190276566A1

公开(公告)日：2019-09-12

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: 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：US20170218100A1

公开(公告)日：2017-08-03

申请号：US15514871

申请日：2015-09-22

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： PEITRO BAITA ,  TIZIANO DALL'OCCO ,  MARIA DI DIEGO ,  DARIO LIGUORI ,  LORELLA MARTURANO ,  GABRIELE MEI ,  GIAMPIERO MORINI ,  ROBERTA PICA

IPC: C08F110/02

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.