公开(公告)号：US20220403064A1

公开(公告)日：2022-12-22

申请号：US17778182

申请日：2020-11-09

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： PAOLO CAPISANI ,  NICOLO ARICH DE FINETTI ,  PIETRO BAITA

IPC: C08F10/00 ,  C08F2/01 ,  B01J19/24 ,  B01J8/00

Abstract: A process (and a related system) for collecting samples of a polymerization catalyst or of a catalyst-containing polymer from an operation unit, having an upper end and a lower end, of a polymerization plant, including the steps of: a) extracting a prefixed amount of product from the lower end of the operation unit through a discharge valve; b) directing the product towards a filtering unit through an inlet valve; c) flushing an inert gas through the filtering unit; d) outgassing the filtering unit, through the outlet valve; and e) displacing the filtering unit, for collecting the sample.

公开(公告)号：US20220396649A1

公开(公告)日：2022-12-15

申请号：US17776117

申请日：2020-11-03

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： NICOLO ARICH DE FINETTI ,  PIETRO BAITA ,  ANTONIO MAZZUCCO ,  ROBERTA PICA

IPC: C08F210/16

Abstract: A process for the continuous solution polymerization including the step of polymerizing a first olefin monomer of formula CH2═CHR1, wherein R1 is hydrogen or a hydrocarbon radical having from 1 to 8 carbon atoms with a second olefin monomer of formula CH2═CHR2, wherein R2 is a hydrocarbon radical having from 3 to 8 carbon atoms, in the presence of a polymerization catalyst and in the absence of an inert solvent, at a polymerization temperature (Tp) satisfying the following relationship: Tp≥Tm+20° C. wherein Tm is the melting temperature of the obtained polymer.

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：US20200071429A1

公开(公告)日：2020-03-05

申请号：US16610794

申请日：2018-04-27

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： PIETRO BAITA ,  DARIO LIGUORI ,  HARILAOS MAVRIDIS ,  GIAMPIERO MORINI ,  ROBERTA PICA

IPC: C08F4/655 ,  C08F210/16 ,  C08F2/34 ,  C08F4/651

Abstract: 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).

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：US20170114254A1

公开(公告)日：2017-04-27

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 ,  C08L23/06 ,  C08L23/20 ,  B32B15/085 ,  C09J123/20 ,  C09J5/02 ,  B32B27/06 ,  B32B7/12 ,  C08L51/06 ,  C09J123/06

CPC classification number: C09J151/06 ,  B32B7/12 ,  B32B15/085 ,  B32B27/06 ,  B32B2307/718 ,  C08F10/00 ,  C08F110/02 ,  C08F2410/02 ,  C08L23/06 ,  C08L23/20 ,  C08L51/06 ,  C08L2205/02 ,  C08L2205/03 ,  C08L2207/062 ,  C09J5/02 ,  C09J123/06 ,  C09J123/20 ,  C09J2205/306 ,  C09J2400/166 ,  C09J2423/00 ,  C09J2423/04 ,  C09J2451/00 ,  C09J2463/008 ,  C08F2/005 ,  C08F2/007 ,  C08F2500/07 ,  C08F2500/12 ,  C08F2500/18 ,  C08F2500/24 ,  C08F4/025 ,  C08F110/06 ,  C08F4/6492

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.