公开(公告)号：US20240343847A1

公开(公告)日：2024-10-17

申请号：US18580415

申请日：2022-07-05

Applicant: Basell Polyolefine GmbH

Inventor： Diana Doetsch ,  Bernd Lothar Marczinke ,  Gerhardus Meier ,  Ulf Schueller ,  Elke Damm ,  Claudio Fibla

IPC: C08F210/16 ,  C08L23/06 ,  C08L23/08

CPC classification number: C08F210/16 ,  C08L23/06 ,  C08L23/0815 ,  C08L2205/025 ,  C08L2314/02

Abstract: A polyethylene composition having the following features:



1) a density from 0.957 to 0.968 g/cm3;
2) a ratio MIF/MIP from 12 to 30;
3) a MIF from 41 to 60 g/10 min.;
4) a long-chain branching index, LCBI, equal to or greater than 0.45; and
5) a ratio (η0.02/1000)/LCBI from 45 to 75.

公开(公告)号：US12103988B2

公开(公告)日：2024-10-01

申请号：US17312822

申请日：2019-12-16

Applicant: Basell Polyolefine GmbH

Inventor： Giuseppe Penzo ,  Gerhardus Meier ,  Ulf Schueller ,  Pietro Baita ,  Giulia Mei ,  Elke Damm

IPC: C08F210/16 ,  B01J8/00 ,  B01J8/18 ,  B01J8/26 ,  B01J21/04 ,  B01J23/42 ,  B01J23/44 ,  B01J23/72 ,  C08F2/01 ,  C08F2/34 ,  C08F110/02

CPC classification number: C08F110/02 ,  B01J8/0055 ,  B01J8/1827 ,  B01J8/1863 ,  B01J8/1881 ,  B01J8/26 ,  B01J21/04 ,  B01J23/42 ,  B01J23/44 ,  B01J23/72 ,  C08F210/16 ,  C08F2/01 ,  C08F2/34

Abstract: A process for preparation of an ethylene polymer in a gas-phase polymerization unit comprising a gas-phase polymerization reactor by homopolymerizing ethylene or copolymerizing ethylene and one or more C4-C12-1-alkenes in a reaction gas made from or containing propane as polymerization diluent in the presence of a pre-activated polymerization catalyst, wherein a purified propane feed stream made from or containing at least 99 mol % propane and from 0.1 to 100 ppm mol propylene is fed to the gas-phase polymerization unit.

公开(公告)号：US20240254264A1

公开(公告)日：2024-08-01

申请号：US18561455

申请日：2022-05-17

Applicant: Basell Polyolefine GmbH

Inventor： Gerhardus Meier ,  Ulf Schueller ,  Heike Gregorius ,  Gregor Hahn

IPC: C08F210/16 ,  C08F2/01 ,  C08F2/34 ,  C08F4/642

CPC classification number: C08F210/16 ,  C08F2/01 ,  C08F2/34 ,  C08F4/6421 ,  C08F2400/02

Abstract: A process for preparing an olefin polymer in a polymerization apparatus in the presence of a solid particulate polymerization catalyst and an organometallic compound, including the steps of withdrawing a gaseous stream from the polymerization apparatus, passing the gaseous stream through a bed of particulate solid having, at the surface of the particulate solid, chemical groups which are reactive with the organometallic compound, and feeding a sample of the gaseous stream into an analyzer.

公开(公告)号：US20240093010A1

公开(公告)日：2024-03-21

申请号：US17945336

申请日：2022-09-15

Applicant: Basell Polyolefine GmbH

Inventor： Ulf Schueller ,  Sebastian Wilhelm ,  Harald Schmitz ,  Andreas Maus ,  Bernd Lothar Marczinke ,  Elke Damm ,  Gerhardus Meier ,  Eric D. Day ,  Sameer D. Mehta ,  Harilaos Mavridis

IPC: C08L23/08

CPC classification number: C08L23/0815

Abstract: A polyethylene composition particularly suited for producing blow-molded hollow articles, having the following features:



1) density from 0.948 to 0.955 g/cm3;
2) ratio MIF/MIE from 60 to 120;
3) MIF from 15 to 45 g/10 min.;
4) ER values from 2 to 5.0;

said composition being obtainable by contacting a precursor polyethylene composition with a radical initiator.

公开(公告)号：US20240093009A1

公开(公告)日：2024-03-21

申请号：US17945329

申请日：2022-09-15

Applicant: Basell Polyolefine GmbH

Inventor： Ulf Schueller ,  Sebastian Wilhelm ,  Harald Schmitz ,  Andreas Maus ,  Bernd Lothar Marczinke ,  Elke Damm ,  Gerhardus Meier ,  Eric D. Day ,  Sameer D. Mehta ,  Harilaos Mavridis

IPC: C08L23/06 ,  C08F110/02 ,  C08K5/14

CPC classification number: C08L23/06 ,  C08F110/02 ,  C08K5/14 ,  C08F2800/10 ,  C08L2207/062

Abstract: A polyethylene composition particularly suited for producing blow-molded hollow articles, having the following features:



1) density from more than 0.955 to 0.965 g/cm3;
2) ratio MIF/MIE from 60 to 125;
3) MIF from 15 to 40 g/10 min.;
4) ER values from 3.0 to 5.5;
5) 110.02 equal to or lower than 150,000 Pa·s.

公开(公告)号：US11845854B2

公开(公告)日：2023-12-19

申请号：US17275874

申请日：2019-09-04

Applicant: BASELL POLYOLEFINE GMBH

Inventor： Gerhardus Meier ,  Ulf Schueller ,  Andreas Maus ,  Harilaos Mavridis

IPC: C08F210/16 ,  C08F2/00 ,  C08L23/06 ,  C08J5/18 ,  C08L23/08

CPC classification number: C08L23/06 ,  C08F210/16 ,  C08J5/18 ,  C08L23/0815 ,  C08F2/001 ,  C08J2323/06 ,  C08J2323/08 ,  C08J2423/06 ,  C08J2423/08

Abstract: A polyethylene composition for producing blown films, made from or containing an ethylene homopolymer or copolymer A) and an ethylene copolymer B) having a MIE value lower than the MIE value of A), the composition having the following features:



1) density from 0.948 to 0.960 g/cm3;
2) ratio MIF/MIP from 20 to 40;
3) MIF from 6 to less than 15 g/10 min.;
4) HMWcopo index from 0.5 to 3.5;
5) long-chain branching index, LCBI, equal to or lower than 0.82;
6) η0.02 of equal to or less than 150000.

公开(公告)号：US10570277B2

公开(公告)日：2020-02-25

申请号：US16463790

申请日：2017-10-30

Applicant: BASELL POLYOLEFINE GMBH

Inventor： Diana Doetsch ,  Bernd Lothar Marczinke ,  Gerhardus Meier ,  Ulf Schueller ,  Elke Damm ,  Claudio Fibla

IPC: C08L23/06 ,  B29C49/00 ,  C08F10/02 ,  C08L23/08

Abstract: A polyethylene composition for producing blow-molded hollow articles, having the following features: 1) density from greater than 0.952 to 0.957 g/cm3, determined according to ISO 1183-1 at 23° C.; 2) ratio MIF/MIP from 12 to 25; 3) MIF from 18 to 40 g/10 min.; 4) η0.02 from 30,000 to 55,000 Pa·s; 5) long-chain branching index, LCBI, equal to or greater than 0.55; 6) ratio (η0.02/1000)/LCBI from 55 to 75.

公开(公告)号：US20190322775A1

公开(公告)日：2019-10-24

申请号：US16348636

申请日：2017-11-09

Applicant: Basell Polyolefine GmbH

Inventor： Gerhardus Meier ,  Ulf Schueller ,  Gabriele Mei ,  Massimo Covezzi ,  Pietro Baita ,  Lorella Marturano

IPC: C08F10/02 ,  B01J8/18

Abstract: A process for preparing an ethylene polymer including the step of homopolymerizing ethylene or copolymerizing ethylene with one or more comonomers in a gas-phase polymerization reactor including a riser unit wherein growing polymer particles flow upwards under fluidization, fast fluidization or transport conditions and a downcomer wherein growing polymer particles flow downward in a densified form, wherein the hold-up of polymer particles in the downcomer is from 55 wt. % to 80 wt. % of the total hold-up of polymer particles in the gas-phase polymerization reactor.

公开(公告)号：US10174186B2

公开(公告)日：2019-01-08

申请号：US15154800

申请日：2016-05-13

Applicant: Basell Polyolefine GmbH

Inventor： Joachim Berthold ,  Lutz-Gerd Heinicke ,  Gerhardus Meier

IPC: C08L23/06 ,  C08J5/18 ,  C08L23/04 ,  C08F2/38 ,  C08L23/08

Abstract: The invention relates to a polyethylene molding composition having a multimodal molar mass distribution particularly suitable for blow molding films having a thickness in the range from 8 to 200 μm. The molding composition has a density at a temperature of 23° C. in the range from 0.953 to 0.960 g/cm3 and an MFR190/5 of the final product after extrusion in the range from 0.10 to 0.50 dg/min. The composition comprises from 30 to 60% by weight of a first ethylene polymer fraction made of a homopolymer A having a first molecular weight, from 22 to 40% by weight of a second ethylene polymer fraction made of a further homopolymer or first copolymer B of ethylene and at least one first comonomer from the group of olefins having from 4 to 8 carbon atoms, the first copolymer B having a second molecular weight higher than the first molecular weight, and from 10 to 30% by weight of a third ethylene polymer fraction made of a second copolymer C having a third molecular weight higher than the second molecular weight. The molding composition of the invention allows to produce thin films having improved processability without impairing the mechanical properties.

公开(公告)号：US09969898B2

公开(公告)日：2018-05-15

申请号：US15660653

申请日：2017-07-26

Applicant: BASELL POLYOLEFINE GMBH

Inventor： Gerhardus Meier ,  Ulf Schuller ,  Diana Dotsch ,  Bernd Lothar Marczinke ,  Heinz Vogt

IPC: C09D123/08 ,  C08L23/06 ,  C09D123/06 ,  C08L23/08

CPC classification number: C09D123/0815 ,  C08L23/06 ,  C08L23/0815 ,  C08L2205/025 ,  C08L2308/00 ,  C08L2314/02 ,  C09D123/06

Abstract: Polyethylene composition with improved balance of impact resistance at low temperatures and Environmental Stress Cracking Resistance (ESCR), particularly suited for producing protective coatings on metal pipes, said composition having the following features: 1) density from 0.938 to 0.948 g/cm3; 2) ratio MIF/MIP from 15 to 25; 3) MIF from 30 to 45 g/10 min.; 4) Mz equal to or greater than 1000000 g/mol; 5) LCBI equal to or greater than 0.55.