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公开(公告)号：US12187877B2
公开(公告)日：2025-01-07
申请号：US17432392
申请日：2020-02-12
Inventor： Shahram Mihan , Erik Hans Licht , Rolf Mülhaupt , Carl Gunther Schirmeister , Timo Hees
IPC: C08L23/06 , B29C64/118 , B33Y10/00 , B33Y70/00 , B29K23/00
Abstract: An extrusion additive manufacturing process including the step of extruding a polyethylene composition having a melt flow index MIE of at least 0.1 g/10 min., the composition made from or containing: A) from 1% to 40% by weight of a polyethylene component having a weight average molar mass Mw, as measured by GPC (Gel Permeation Chromatography), equal to or higher than 1,000,000 g/mol; B) from 1% to 95% by weight of a polyethylene component having a Mw value from 50,000 to 500,000 g/mol; and C) from 1% to 59% by weight of a polyethylene component having a Mw value equal to or lower than 5,000 g/mol.
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公开(公告)号：US20240051221A1
公开(公告)日：2024-02-15
申请号：US17766442
申请日：2020-09-28
Inventor： Carl Schirmeister , Karsten Schmitz , Yannic Kessler , Rainer Köhler , Erik Licht , Shahram Mihan , Jürgen Rohrmann , Dieter Langenfelder , Rolf Muelhaupt , Timo Hees
CPC classification number: B29C64/118 , C08L23/12 , C08L23/16 , C08L23/0815 , C08K7/14 , C08L53/00 , C08L25/08 , C08L51/06 , B29K2023/08
Abstract: A process for producing articles with an extrusion-based additive manufacturing system using a consumable filament made from or containing a propylene polymer composition made from or containing:
A) from 20% to 60% by weight of a heterophasic propylene copolymer;
B) from 5% to 33% by weight of a propylene homopolymer or copolymer, wherein the copolymer contains up to 5% by weight of an alpha olefin;
C) from 2% to 15% by weight of an elastomeric block copolymer made from or containing styrene;
D) from 4% to 32% by weight of an elastomeric ethylene copolymer;
E) from 5% to 50% by weight of a glass material as filler; and
F) from 0.1% to 5% by weight of compatibilizer.-
公开(公告)号：US11518824B2
公开(公告)日：2022-12-06
申请号：US16755503
申请日：2018-10-05
Inventor： Shahram Mihan , Heike Gregorius , Volker Fraaije , Rolf Mulhaupt , Fan Zhong
Abstract: A nano platelet gibbsite treated with compound of formula (ORa)3Si—Rb or of formula Rc—COOH wherein Ra equal to or different from each other is a C1-C10 alkyl radical; Rb is a C5-C30 hydrocarbon radical and Rc is a C5-C30 hydrocarbon radical is used as a catalyst support.
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公开(公告)号：US20220259416A1
公开(公告)日：2022-08-18
申请号：US17432392
申请日：2020-02-12
Inventor： Shahram Mihan , Erik Hans Licht , Rolf Mülhaupt , Carl Gunther Schirmeister , Timo Hees
IPC: C08L23/06 , B33Y10/00 , B33Y70/00 , B29C64/118
Abstract: An extrusion additive manufacturing process including the step of extruding a polyethylene composition having a melt flow index MIE of at least 0.1 g/10 min., the composition made from or containing: A) from 1% to 40% by weight of a polyethylene component having a weight average molar mass Mw, as measured by GPC (Gel Permeation Chromatography), equal to or higher than 1,000,000 g/mol; B) from 1% to 95% by weight of a polyethylene component having a Mw value from 50,000 to 500,000 g/mol; and C) from 1% to 59% by weight of a polyethylene component having a Mw value equal to or lower than 5,000 g/mol.
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公开(公告)号：US10358509B2
公开(公告)日：2019-07-23
申请号：US15559792
申请日：2016-03-23
Applicant: Basell Polyolefine GmbH
Inventor： Volker Fraaije , Michael Lynch , Shahram Mihan , Gerhardus Meier , Ulf Schueller
IPC: C08F10/02
Abstract: The present disclosure relates to a continuous process for the preparation of ethylene homopolymers or ethylene copolymers comprising polymerizing ethylene or copolymerizing ethylene and one or more other olefins in the presence of a chromium catalyst in a gas-phase polymerization reactor which is equipped with a cycle gas line for withdrawing reactor gas from the reactor, leading the reactor gas through a heat-exchanger for cooling and feeding the reactor gas back to the reactor, wherein the polymerization is carried out at a temperature from 30° C. to 130° C. and a pressure of from 0.1 to 10 MPa and an aliphatic carboxylic acid ester having from 8 to 24 carbon atoms is added.
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Patent Agency Ranking
公开(公告)号：US20190055328A1
公开(公告)日：2019-02-21
申请号：US16079229
申请日：2017-02-23
Applicant: Basell Polyolefine GmbH
Inventor： Gerhardus Meier , Ulf Schueller , Claudio Fibla , Shahram Mihan
IPC: C08F10/02
Abstract: A process for the preparation of an ethylene polymer including the step of polymerizing ethylene or copolymerizing ethylene and one or more other olefins in the presence of a Phillips-type chromium catalyst in a gas-phase polymerization reactor containing a reactor bed of particulate polymer, wherein the gas-phase polymerization reactor is equipped with a cycle gas line, wherein the reactor gas returned to the polymerization reactor through the cycle gas line has been condensed in part and the amount of liquid in the returned reactor gas is from 0.5 wt. % to 10 wt. % based upon the total weight of the reactor gas/liquid composition, the polymerization is carried out at from 108° C. to 125° C., and an aluminum alkyl is fed into the polymerization reactor in an amount in the range of from 0.0025 mole to 0.1 mole per ton of dosed ethylene.
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公开(公告)号：US20180079842A1
公开(公告)日：2018-03-22
申请号：US15559792
申请日：2016-03-23
Applicant: Basell Polyolefine GmbH
Inventor： Volker Fraaije , Michael Lynch , Shahram Mihan , Gerhardus Meier , Ulf Schueller
IPC: C08F10/02
CPC classification number: C08F10/02 , C08F2500/07 , C08F210/16 , C08F2/005 , C08F2/007 , C08F210/14 , C08F2500/12 , C08F2500/13 , C08F2500/14 , C08F2500/26 , C08F4/24
Abstract: The present disclosure relates to a continuous process for the preparation of ethylene homopolymers or ethylene copolymers comprising polymerizing ethylene or copolymerizing ethylene and one or more other olefins in the presence of a chromium catalyst in a gas-phase polymerization reactor which is equipped with a cycle gas line for withdrawing reactor gas from the reactor, leading the reactor gas through a heat-exchanger for cooling and feeding the reactor gas back to the reactor, wherein the polymerization is carried out at a temperature from 30° C. to 130° C. and a pressure of from 0.1 to 10 MPa and an aliphatic carboxylic acid ester having from 8 to 24 carbon atoms is added.
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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：US20180009916A1
公开(公告)日：2018-01-11
申请号：US15677814
申请日：2017-08-15
Applicant: Basell Polyolefine GmbH
Inventor： Shahram Mihan , Gerhardus Meier , Ulf Schueller , Michael Schiendorfer , Jens Wiesecke
IPC: C08F110/02 , C08F10/02 , H01B1/12
CPC classification number: C08F110/02 , C08F10/02 , C08F2410/02 , H01B1/12 , C08F210/16 , C08F210/14 , C08F2500/24 , C08F2500/07 , C08F2500/12 , C08F2500/13 , C08F2/005 , C08F2/34
Abstract: A process for the preparation of polyolefins by polymerizing olefins at temperatures of from 20 to 200° C. and pressures of from 0.1 to 20 MPa in the presence of a polymerization catalyst and an antistatically acting composition in a polymerization reactor, wherein the antistatically acting composition is a mixture comprising an oil-soluble surfactant and water and the use of an antistatically acting composition comprising an oil-soluble surfactant and water as antistatic agent for the polymerization of olefins at temperatures of from 20 to 200° C. and pressures of from 0.1 to 20 MPa in the presence of a polymerization catalyst.
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公开(公告)号：US09738778B2
公开(公告)日：2017-08-22
申请号：US14407204
申请日：2013-06-19
Applicant: Basell Polyolefine GmbH
Inventor： Fabiana Fantinel , Bodo Richter , Shahram Mihan , Massimo Covezzi , Claudio Cavalieri , Michele Grazzi
CPC classification number: C08L23/12 , C08F4/61912 , C08F4/61916 , C08F4/65927 , C08F4/7042 , C08J5/18 , C08J2323/16 , C08J2423/06 , C08J2423/12 , C08L23/0815 , C08L23/10 , C08L23/16 , C08L2205/02 , C08L2205/03 , C08L2314/06 , C08L2314/08 , Y10T428/139 , C08F210/16 , C08F2/001 , C08F4/61904 , C08L23/08 , C08L23/142 , C08F210/06 , C08F2500/04 , C08F2500/12 , C08F2500/17 , C08F2500/21 , C08L23/06
Abstract: A two steps polymerization process for obtaining a polyolefin composition comprising: a) from 25 wt % to 70 wt % of a propylene homopolymer or a propylene-ethylene copolymer containing from 0.1 wt % to 10 wt % of ethylene derived units; b) from 27 wt % to 70 wt % of a copolymer of ethylene and at least one C3-C20 alpha olefins, wherein the ethylene derived units content ranges from 15 wt % to 70 wt %; c) from 3 wt % to 20 wt % of polyethylene homopolymer or an ethylene and at least one C3-C20 alpha olefins copolymer; the sum a)+b)+c) being 100, wherein said process comprises: step a) contacting under polymerization conditions propylene, optionally ethylene and the catalyst system in order to obtain component a), step b) contacting under polymerization conditions ethylene and at least one C3-C20 alpha-olefins and the catalyst system in order to obtain components b) and c); wherein the catalyst system comprises a metallocene compound and an iron complex.
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