公开(公告)号：WO0216019A9

公开(公告)日：2004-05-13

申请号：PCT/EP0109683

申请日：2001-08-22

Applicant: BASELL POLIOLEFINE SPA ,  BIDELL WOLFGANG ,  LUTZ GERALD ,  LANGHAUSER FRANZ ,  SCHERER GUENTER ,  MECKELNBURG DIRK ,  OELZE JUERGEN ,  GERBIG HANS-JUERGEN ,  HUEHNERBEIN JUERGEN

Inventor： BIDELL WOLFGANG ,  LUTZ GERALD ,  LANGHAUSER FRANZ ,  SCHERER GUENTER ,  MECKELNBURG DIRK ,  OELZE JUERGEN ,  GERBIG HANS-JUERGEN ,  HUEHNERBEIN JUERGEN

IPC: B01J8/00 ,  B01J8/24 ,  C08F2/34 ,  C08F10/06 ,  C08F110/06 ,  C08F210/06 ,  G01F23/288

CPC classification number: B01J8/1809 ,  B01J8/001 ,  B01J2208/0061 ,  C08F10/06 ,  C08F110/06 ,  C08F210/06 ,  G01F23/2885 ,  C08F2/34 ,  C08F2500/12 ,  C08F2500/24 ,  C08F210/16

Abstract: The invention relates to a method for measuring the level of a medium in a reactor during continuously operated polymerisation processes, whereby the limiting surface of each phase in the reactor is measured with the aid of an ionising radiation. Said method is characterised in that at least one measuring unit, consisting of a radiation source that emits ionising radiation and a corresponding detector, is brought up to the limiting surface in the reactor and is fixed in a flexible manner in the vicinity. To measure the level of the medium, the limiting surface of the phase is determined by measuring the radioactive backscatter of said phase.

Abstract translation: 一种用于在连续操作的聚合反应器中的液位测量的过程中，各相的边界在反应器中测得的电离辐射的帮助下，其特征在于，其包含发射致电离辐射的辐射源，至少一个测量单元和在反应器中带来了相应的检测器在相界面和 固定有柔性的，该反应器的液位测量以这样一种方式，它确定由放射性反向散射测量的手段相界面进行。

公开(公告)号：AU779011B2

公开(公告)日：2005-01-06

申请号：AU6231401

申请日：2001-05-23

Applicant: BASELL POLIOLEFINE SPA

Inventor： DAHN ULRICH ,  BIDELL WOLFGANG ,  ZIMMERMANN HANS-JURGEN ,  HINGMANN ROLAND ,  ROSCH JOACHIM ,  SCHWEIER GUNTHER ,  OELZE JURGEN

IPC: C08J5/00 ,  C08F2/00 ,  C08F4/642 ,  C08F10/06 ,  C08F110/06 ,  C08F210/06 ,  C08F297/08 ,  C08L53/00 ,  D01F6/30

Abstract: The invention relates to highly flowable propylene block copolymers that comprise 50 to 80 wt.-% of a propylene homopolymer and 10 to 70 wt.-% of a propylene copolymer having 5 to 50 wt.-% of a C 2 -C 8 alk-1-ene polymerized into it that is different from propylene, and that are obtainable from the gaseous phase by a two-step polymerization by means of a Ziegler-Natta catalyst system. In a first polymerization step, the propylene is polymerized at a pressure of 10 to 50 bar, a temperature of 50 to 100° C. and an average dwelling time of the reaction mixture of 0.3 to 5 hours in the presence of at least 2.0% by volume, based on the total volume, of hydrogen. The propylene homopolymer obtained in said first polymerization step is transferred together with the Ziegler-Natta catalyst system into an intermediate container, expanded for 0.01 to 5 minutes to less than 5 bar and maintained at a temperature of 10 to 80° C. The pressure in the intermediate container is then increased by 5 to 60 bar by introducing under pressure a gaseous mixture, and the propylene homopolymer is then transferred to a second polymerization step together with the Ziegler-Natta catalyst system. In said second polymerization step, a mixture from propylene and a C 2 -C 8 alk-1-ene is polymerized into the propylene homopolymer at a pressure of 10 to 50 bar, a temperature of 50 to 100° C. and an average dwelling time of 0.5 to 5 hours. The weight ratio between the monomers reacted in the first and those reacted in the second polymerization step are adjusted to be in the range of from 4:1 to 1:1.

公开(公告)号：ES2219566T3

公开(公告)日：2004-12-01

申请号：ES01976133

申请日：2001-08-22

Applicant: BASELL POLIOLEFINE SPA

Inventor： BIDELL WOLFGANG ,  LUTZ GERALD ,  LANGHAUSER FRANZ ,  SCHERER GUNTER ,  MECKELNBURG DIRK ,  OELZE JURGEN

IPC: B01J8/00 ,  B01J8/24 ,  C08F2/34 ,  C08F10/06 ,  C08F110/06 ,  C08F210/06 ,  G01F23/288

Abstract: Procedimiento para la medición del nivel de llenado de un reactor en procesos de polimerización efectuados en continuo, en el que se mide la correspondiente superficie límite entre fases dentro del reactor mediante una radiación ionizante, caracterizado porque se introduce por lo menos una unidad de medición, compuesta por un foco de radiación que emite radiación ionizante y el detector correspondiente, en la superficie límite entre fases dentro del reactor y se fija en esta posición de forma flexible y la medición de nivel de llenado del reactor se realiza de modo que se determina la superficie límite entre fases mediante la medición del retorno de la difusión radiactiva.

公开(公告)号：DE10233700A1

公开(公告)日：2004-02-12

申请号：DE10233700

申请日：2002-07-24

Applicant: BASELL POLIOLEFINE SPA

Inventor： DAHN ULRICH CLEMENS ,  BIDELL WOLFGANG ,  ZIMMERMANN HANS JUERGEN ,  ROESCH JOACHIM ,  SCHWEIER GUENTER

IPC: C08F10/06 ,  C08F110/06 ,  C08F210/06 ,  C08F210/16 ,  C08L23/10 ,  C08L23/12 ,  C08L23/14 ,  C08F297/00 ,  C08J5/02 ,  C08L23/16

Abstract: Propylene polymer compositions are prepared in an at least two-stage process by, in a first stage, preparing by polymerization a propylene homopolymer or a propylene copolymer comprising propylene and at least2-10C alkenes other than propylene and containing at least85 wt.% propylene; and, in a second stage, polymerizing ethylene and at least a comonomer from propylene and 4-10C alkenes to give an ethylene polymer comprising at least90 wt.% ethylene. Preparation of propylene polymer compositions in an at least two-stage process includes, in a first stage, preparing by polymerization a propylene homopolymer or a propylene copolymer comprising propylene and at least2-10C alkenes other than propylene and containing at least85 wt.% propylene; and, in a second stage, polymerizing ethylene and at least a comonomer from propylene and 4-10C alkenes to give an ethylene polymer comprising at least90 wt.% ethylene. The amount of ethylene polymer in the propylene polymer composition is 10-50 wt.%. The propylene polymer composition has a melt flow rate (MFR), in accordance with ISO 1133 at 230degreesC and 2.16 kg, of 2-50 g/10 minutes. An Independent claim is also included for a process of preparing polymer compositions, comprising preparing a propylene polymer composition by the above process; and subsequently mixing an ethylene-(3-10C)-1-alkene copolymer having a crystallinity lower than that of the ethylene polymer formed in the second stage.

公开(公告)号：TR200402352T4

公开(公告)日：2004-12-21

申请号：TR200402352

申请日：2001-05-23

Applicant: BASELL POLIOLEFINE SPA

Inventor： DAHN ULRICH ,  BIDELL WOLFGANG ,  ZIMMERMANN HANS-JUERGEN ,  HINGMANN ROLAND ,  ROESCH JOACHIM ,  SCHWEIER GUENTHER ,  OELZE JUERGEN

IPC: C08J5/00 ,  C08F2/00 ,  C08F4/642 ,  C08F10/06 ,  C08F110/06 ,  C08F210/06 ,  C08F297/08 ,  C08L53/00 ,  D01F6/30

Abstract: The invention relates to highly flowable propylene block copolymers that comprise 50 to 80 wt.-% of a propylene homopolymer and 10 to 70 wt.-% of a propylene copolymer having 5 to 50 wt.-% of a C 2 -C 8 alk-1-ene polymerized into it that is different from propylene, and that are obtainable from the gaseous phase by a two-step polymerization by means of a Ziegler-Natta catalyst system. In a first polymerization step, the propylene is polymerized at a pressure of 10 to 50 bar, a temperature of 50 to 100° C. and an average dwelling time of the reaction mixture of 0.3 to 5 hours in the presence of at least 2.0% by volume, based on the total volume, of hydrogen. The propylene homopolymer obtained in said first polymerization step is transferred together with the Ziegler-Natta catalyst system into an intermediate container, expanded for 0.01 to 5 minutes to less than 5 bar and maintained at a temperature of 10 to 80° C. The pressure in the intermediate container is then increased by 5 to 60 bar by introducing under pressure a gaseous mixture, and the propylene homopolymer is then transferred to a second polymerization step together with the Ziegler-Natta catalyst system. In said second polymerization step, a mixture from propylene and a C 2 -C 8 alk-1-ene is polymerized into the propylene homopolymer at a pressure of 10 to 50 bar, a temperature of 50 to 100° C. and an average dwelling time of 0.5 to 5 hours. The weight ratio between the monomers reacted in the first and those reacted in the second polymerization step are adjusted to be in the range of from 4:1 to 1:1.

公开(公告)号：CA2420489A1

公开(公告)日：2003-02-25

申请号：CA2420489

申请日：2001-08-22

Applicant: BASELL POLIOLEFINE SPA

Inventor： OELZE JURGEN ,  GERBIG HANS-JURGEN ,  MECKELNBURG DIRK ,  LUTZ GERALD ,  LANGHAUSER FRANZ ,  SCHERER GUNTER ,  BIDELL WOLFGANG ,  HUHNERBEIN JURGEN

IPC: B01J8/00 ,  B01J8/24 ,  C08F2/34 ,  C08F10/06 ,  C08F110/06 ,  C08F210/06 ,  G01F23/288

Abstract: The invention relates to a method for measuring the level of a medium in a reactor during continuously operated polymerisation processes, whereby the limiting surface of each phase in the reactor is measured with the aid of an ionising radiation. Said method is characterised in that at least one measuring unit, consisting of a radiation source that emits ionising radiati on and a corresponding detector, is brought up to the limiting surface in the reactor and is fixed in a flexible manner in the vicinity. To measure the level of the medium, the limiting surface of the phase is determined by measuring the radioactive backscatter of said phase.

公开(公告)号：CA2424944C

公开(公告)日：2010-01-12

申请号：CA2424944

申请日：2001-09-20

Applicant: BASELL POLIOLEFINE SPA

Inventor： ZITZMANN JOACHIM ,  OELZE JURGEN ,  GEBHART HERMANN ,  LYNCH JOHN ,  BIDELL WOLFGANG

IPC: C08F10/00 ,  B01J8/00 ,  B01J8/06 ,  B01J19/24 ,  C08F2/00 ,  C08F2/01 ,  C08F10/06

Abstract: Catalysts for the polymerization of C2-C20-olefins are preactivated by a process in which the catalyst is first mixed with the respective monomer, then, if appropriate, the respective cocatalyst is added and the resulting mixture is subsequently subjected to preactivation in a tube reactor and the catalyst which has been preactivated in this way is finally introduced into the actual polymerization reactor, wherein the mixture of catalyst, any cocatalyst and monomer is passed through the tube reactor in turbulent plug flow at a Reynolds number of at least 2 300.

公开(公告)号：DE50102859D1

公开(公告)日：2004-08-19

申请号：DE50102859

申请日：2001-05-23

Applicant: BASELL POLIOLEFINE SPA

Inventor： DAHN ULRICH ,  BIDELL WOLFGANG ,  ZIMMERMANN HANS-JUERGEN ,  HINGMANN ROLAND ,  ROESCH JOACHIM ,  SCHWEIER GUENTHER ,  OELZE JUERGEN

IPC: C08J5/00 ,  C08F2/00 ,  C08F4/642 ,  C08F10/06 ,  C08F110/06 ,  C08F210/06 ,  C08F297/08 ,  C08L53/00 ,  D01F6/30

Abstract: The invention relates to highly flowable propylene block copolymers that comprise 50 to 80 wt.-% of a propylene homopolymer and 10 to 70 wt.-% of a propylene copolymer having 5 to 50 wt.-% of a C 2 -C 8 alk-1-ene polymerized into it that is different from propylene, and that are obtainable from the gaseous phase by a two-step polymerization by means of a Ziegler-Natta catalyst system. In a first polymerization step, the propylene is polymerized at a pressure of 10 to 50 bar, a temperature of 50 to 100° C. and an average dwelling time of the reaction mixture of 0.3 to 5 hours in the presence of at least 2.0% by volume, based on the total volume, of hydrogen. The propylene homopolymer obtained in said first polymerization step is transferred together with the Ziegler-Natta catalyst system into an intermediate container, expanded for 0.01 to 5 minutes to less than 5 bar and maintained at a temperature of 10 to 80° C. The pressure in the intermediate container is then increased by 5 to 60 bar by introducing under pressure a gaseous mixture, and the propylene homopolymer is then transferred to a second polymerization step together with the Ziegler-Natta catalyst system. In said second polymerization step, a mixture from propylene and a C 2 -C 8 alk-1-ene is polymerized into the propylene homopolymer at a pressure of 10 to 50 bar, a temperature of 50 to 100° C. and an average dwelling time of 0.5 to 5 hours. The weight ratio between the monomers reacted in the first and those reacted in the second polymerization step are adjusted to be in the range of from 4:1 to 1:1.

公开(公告)号：DE50102281D1

公开(公告)日：2004-06-17

申请号：DE50102281

申请日：2001-08-22

Applicant: BASELL POLIOLEFINE SPA

Inventor： BIDELL WOLFGANG ,  LUTZ GERALD ,  LANGHAUSER FRANZ ,  SCHERER GUENTER ,  MECKELNBURG DIRK ,  OELZE JUERGEN ,  GERBIG HANS-JUERGEN ,  HUEHNERBEIN JUERGEN

IPC: B01J8/00 ,  B01J8/24 ,  C08F2/34 ,  C08F10/06 ,  C08F110/06 ,  C08F210/06 ,  G01F23/288

Abstract: In a method of measuring the fill level of a reactor in continuously operated polymerization processes using measurement of the respective phase interface in the reactor by means of ionizing radiation, at least one measuring unit comprising a radiation source which emits ionizing radiation and a corresponding detector is brought to the phase interface in the reactor and flexibly installed there, with the fill level of the reactor being measured by determining the phase interface by means of the radioactive backscattering measurement.

公开(公告)号：BR0114228A

公开(公告)日：2003-07-22

申请号：BR0114228

申请日：2001-09-20

Applicant: BASELL POLIOLEFINE SPA

Inventor： BIDELL WOLFGANG ,  ZITZMANN JOACHIM ,  LYNCH JOHN ,  OELZE J RGEN ,  GEBHART HERMANN

IPC: B01J8/00 ,  B01J8/06 ,  B01J19/24 ,  C08F2/00 ,  C08F2/01 ,  C08F10/00 ,  C08F10/06

Abstract: Catalysts for the polymerization of C2-C20-olefins are preactivated by a process in which the catalyst is first mixed with the respective monomer, then, if appropriate, the respective cocatalyst is added and the resulting mixture is subsequently subjected to preactivation in a tube reactor and the catalyst which has been preactivated in this way is finally introduced into the actual polymerization reactor, wherein the mixture of catalyst, any cocatalyst and monomer is passed through the tube reactor in turbulent plug flow at a Reynolds number of at least 2 300.