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公开(公告)号：US20180072876A1
公开(公告)日：2018-03-15
申请号：US15560424
申请日：2016-03-23
Applicant: Basell Polyolefine GmbH
Inventor： Gerd Mannebach , Bernd Lothar Marczinke , Gerhardus Meier , Ulf Schueller , Shahram Mihan , Andreas Maus , Pietro Baita , Maria Di Diego , Lorella Marturano
CPC classification number: C08L23/06 , B01J8/224 , B01J8/24 , C08F2/34 , C08F2/44 , C08F10/00 , C08F10/02 , C08F210/16 , C08F2500/04 , C08F2500/07 , C08F2500/12 , C08K5/0075 , C08L71/02 , C08F2/005 , C08F110/02 , C08F2/001
Abstract: A process for preparing a polyolefin, including polymerizing olefins in the presence of an antistatic agent made from or containing an alkylene oxide derived polymer made from or containing in average from about 10 to about 200 repeating units —(CH2—CHR—O)— with R being hydrogen or an alkyl group having from 1 to 6 carbon atoms, wherein the alkylene oxide derived polymer is a random copolymer of ethylene oxide and other alkylene oxides and a ratio of n:m is in the range of from 6:1 to 1:1, wherein (n) is the average number of repeating units —(CH2—CH2—O)— derived from ethylene oxide and (m) is the average number of repeating units —(CH2—CHR′—O)— derived from the other alkylene oxides with R′ being an alkyl group having from 1 to 6 carbon atoms, and the end groups of the alkylene oxide derived polymer are —OH groups.
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公开(公告)号：US20230364574A1
公开(公告)日：2023-11-16
申请号：US18027882
申请日：2021-09-21
Applicant: Basell Polyolefine GmbH
Inventor： Tiziana Caputo , Pietro Baita , Maria Di Diego , Lorella Marturano , Antonio Mazzucco , Gabriele Mei , Giulia Mei , Roberta Pica
CPC classification number: B01J8/10 , B01J8/085 , B01J8/003 , C08F2/01 , C08F4/61912 , C08F110/02 , B01J2208/00752 , B01J2208/00761
Abstract: An apparatus for polymerizing olefins including a polymerization reactor and a vessel system for pre-activating a solid catalyst component, wherein the vessel system is arranged upstream of the polymerization reactor. The vessel system includes a contacting vessel which includes a main portion, a base portion, a head portion, an inlet, an outlet, and a stirrer positioned within the contacting vessel, wherein the ratio (H/D) of the height (H) of the main portion to the diameter (D) of the main portion is 1.8 or greater. The stirrer is located at a position between the inlet and the outlet.
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公开(公告)号：US09932465B1
公开(公告)日：2018-04-03
申请号：US15560424
申请日：2016-03-23
Applicant: Basell Polyolefine GmbH
Inventor： Gerd Mannebach , Bernd Lothar Marczinke , Gerhardus Meier , Ulf Schueller , Shahram Mihan , Andreas Maus , Pietro Baita , Maria Di Diego , Lorella Marturano
IPC: C08F2/44 , C08F2/38 , C08F10/02 , C08F210/16 , C08L23/06 , C08L71/02 , C08K5/00 , C08F2/34 , B01J8/24 , B01J8/22
CPC classification number: C08L23/06 , B01J8/224 , B01J8/24 , C08F2/34 , C08F2/44 , C08F10/00 , C08F10/02 , C08F210/16 , C08F2500/04 , C08F2500/07 , C08F2500/12 , C08K5/0075 , C08L71/02 , C08F2/005 , C08F110/02 , C08F2/001
Abstract: A process for preparing a polyolefin, including polymerizing olefins in the presence of an antistatic agent made from or containing an alkylene oxide derived polymer made from or containing in average from about 10 to about 200 repeating units —(CH2—CHR—O)— with R being hydrogen or an alkyl group having from 1 to 6 carbon atoms, wherein the alkylene oxide derived polymer is a random copolymer of ethylene oxide and other alkylene oxides and a ratio of n:m is in the range of from 6:1 to 1:1, wherein (n) is the average number of repeating units —(CH2—CH2—O)— derived from ethylene oxide and (m) is the average number of repeating units —(CH2—CHR′—O)— derived from the other alkylene oxides with R′ being an alkyl group having from 1 to 6 carbon atoms, and the end groups of the alkylene oxide derived polymer are —OH groups.
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