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公开(公告)号：CA2863836C
公开(公告)日：2020-06-30
申请号：CA2863836
申请日：2013-02-15
Applicant: BASF SE
Inventor： WETTLING THOMAS , HIRSCH STEFAN , BRYM MARKUS , WEIS MARKUS , MUHLBACH KLAUS , CORBERAN ROC ROSA , HASCHICK ROBERT , DAISS ANDREAS , VOLLAND MARCO-CHRISTIAN
IPC: C08F10/10
Abstract: Preparation of isobutene homopolymers having a weight-average molecular weight of 75 000 to 10 000 000 by polymerization of isobutene, by (a) performing the polymerization at -80°C to -190°C, (b) using, as an inert solvent, optionally halogenated C1 to C5 hydrocarbons, (c) using, as a polymerization catalyst, a Lewis acid complex, (d) performing the polymerization in the presence of at least one reaction accelerator in the form of an ethylenically saturated hydrocarbon compound comprising one oxygen atom and no abstractable proton, and (e) performing the polymerization in the presence of at least one chain length regulator comprising one tertiary olefinic carbon atom.
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公开(公告)号：CA2919319C
公开(公告)日：2019-02-26
申请号：CA2919319
申请日：2014-07-29
Applicant: BASF SE
Inventor： HESSE PASCAL , JELICIC ALEKSANDRA , FONSECA ZEPEDA GABRIELA EUGENIA , HASCHICK ROBERT , KEELAPANDAL RAMAMOORTHY SHANKARA NARAYANAN , NAYLOR GARETH IAN , BARRATT JOHN SCOTT , SOETJE OLIVER , LIEVRE MARCEL , RAINAU FLORIAN , LEBKUCHER MARK
Abstract: There is disclosed a reverse-phase suspension polymerisation process for the manufacture of polymer beads comprising forming aqueous monomer beads of an aqueous solution comprising water-soluble ethylenically unsaturated monomer or monomer blend and polymerising the monomer or monomer blend, to form polymer beads while suspended in a non-aqueous liquid, and recovering polymer beads. During the process, (i) the aqueous monomer or monomer blend and/or the orifices is/are vibrated such that the frequency multiplied by the weight average droplet diameter is between 150 and 800 mm/s, and (ii) the non-aqueous liquid flows in a downwards direction and co-current with the direction of flow of the monomer beads. An apparatus for carrying out the process is also disclosed.
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公开(公告)号：AU2014298550A1
公开(公告)日：2016-02-11
申请号：AU2014298550
申请日：2014-07-29
Applicant: BASF SE
Inventor： HESSE PASCAL , JELICIC ALEKSANDRA , FONSECA ZEPEDA GABRIELA EUGENIA , HASCHICK ROBERT , KEELAPANDAL RAMAMOORTHY SHANKARA NARAYANAN , NAYLOR GARETH IAN , BARRATT JOHN SCOTT , SOETJE OLIVER , LIEVRE MARCEL , RAINAU FLORIAN , LEBKUCHER MARK
Abstract: A reverse-phase suspension polymerisation process for the manufacture of polymer beads comprising forming aqueous monomer beads comprising an aqueous solution of water-soluble ethylenically unsaturated monomer or monomer blend and polymerising the monomer or monomer blend, to form polymer beads while suspended in a non-aqueous liquid, and recovering polymer beads, in which the process comprises providing in a vessel (1) a volume (2) of non-aqueous liquid wherein the volume of non-aqueous liquid extends between at least one polymer bead discharge point (3) and at least one monomer feed point (4), feeding the aqueous monomer or monomer blend through orifices (5) into, or onto, the non-aqueous liquid to form aqueous monomer beads, allowing the aqueous monomer beads to flow towards the polymer bead discharge point initiating polymerisation of the aqueous monomer beads to form polymerising beads, wherein the polymerising beads form polymer beads when they reach the polymer bead discharge point, removing a suspension of the polymer beads in non-aqueous liquid from the vessel at the polymer bead discharge point and recovering, water soluble or water swellable polymer beads from the suspension, in which the aqueous monomer or monomer blend and/or the orifices is/are vibrated such that the frequency multiplied by the weight average droplet diameter is between 150 and 800 mm/s. The invention also relates to the apparatus suitable for carrying out a reverse-phase suspension polymerisation and polymer beads obtainable by the process or employing the apparatus. Furthermore, the invention also relates to polymer beads having a weight mean particle size in the range of 0.05 to 5 mm which are held in a container in an amount of at least 300 kg having a standard deviation of particle size less than 20%. In addition, the invention also provides polymer beads having a weight mean particle size in the range 0.05 to 5 mm having a standard deviation of particle size less than 20% and having an amount of residual acrylamide of less than 500 ppm.
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公开(公告)号：CA2919320A1
公开(公告)日：2015-02-05
申请号：CA2919320
申请日：2014-07-29
Applicant: BASF SE
Inventor： HASCHICK ROBERT , JELICIC ALEKSANDRA , BARRATT JOHN SCOTT , HESSE PASCAL , SOETJE OLIVER , FONSECA ZEPEDA GABRIELA EUGENIA , KEELAPANDAL RAMAMOORTHY SHANKARA NARAYANAN , LANGLOTZ BJORN
Abstract: A reverse-phase suspension polymerisation process for the manufacture of polymer beads comprising forming aqueous monomer beads comprising an aqueous solution of water-soluble ethylenically unsaturated monomer or monomer blend and polymerising the monomer or monomer blend to form polymer beads while suspended in a non-aqueous liquid, and recovering polymer beads, in which the process comprises, providing in a vessel (1) a volume (2) of non-aqueous liquid wherein the volume of non-aqueous liquid extends between at least one polymer bead discharge point (3) and at least one monomer feed point (4), feeding the aqueous monomer or monomer blend through orifices (5) into, or onto, the non-aqueous liquid to form aqueous monomer beads, allowing the aqueous monomer beads to flow towards the polymer bead discharge point subjecting the aqueous monomer beads to polymerisation conditions to initiate polymerisation to form polymerising beads, wherein the polymerising beads have formed polymer beads when they reach the polymer bead discharge point, removing a suspension of the polymer beads in non-aqueous liquid from the vessel at the polymer bead discharge point and recovering water soluble or water swellable polymer beads from the suspension. The invention also relates to the apparatus suitable for carrying out a reverse-phase suspension polymerisation and polymer beads obtainable by the process or employing the apparatus.
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公开(公告)号：ZA201601247B
公开(公告)日：2017-06-28
申请号：ZA201601247
申请日：2016-02-24
Applicant: BASF SE
Inventor： HASCHICK ROBERT , SOETJE OLIVER , HESSE PASCAL , JECK SANDRA , JELICIC ALEKSANDRA , KEELAPANDAL RAMAMOORTHY SHANKARA NARAYANAN , FONSECA ZEPEDA GABRIELA EUGENIA , KUHN JELAN
Abstract: A reverse-phase suspension polymerisation process for the manufacture of polymer beads comprising forming aqueous monomer beads of an aqueous solution comprising water-soluble ethylenically unsaturated monomer or monomer blend and polymerising the monomer or monomer blend to form polymer beads while suspended in a non-aqueous liquid, recovering polymer beads, and then cleaning the non-aqueous liquid in which the process comprises providing the non-aqueous liquid in a vessel (1), forming a suspension of monomer beads from the aqueous monomer or monomer blend in the non-aqueous liquid, initiating polymerisation to form polymerising beads, removing a suspension of the polymer beads in non-aqueous liquid from the vessel and recovering, water soluble or water swellable polymer beads from the suspension, in which the non-aqueous liquid contains impurities which comprise particles, and then transferring the non-aqueous liquid from the suspension to a cleaning stage, in which the cleaning stage provides a cleaned non-aqueous liquid suitable for use in a reverse-phase suspension polymerisation process, which cleaning stage comprises removing particles from the non-aqueous liquid in at least one filtration step. The invention also relates to the apparatus suitable for carrying out a reverse-phase suspension polymerisation and polymer beads obtainable by the process or employing the apparatus. The invention further relates to a cleaned non-aqueous liquid obtainable by the process.
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Patent Agency Ranking
公开(公告)号：AU2014298549B2
公开(公告)日：2016-11-24
申请号：AU2014298549
申请日：2014-07-29
Applicant: BASF SE
Inventor： BARRATT JOHN SCOTT , JELICIC ALEKSANDRA , HESSE PASCAL , SOETJE OLIVER , HASCHICK ROBERT , FONSECA ZEPEDA GABRIELA EUGENIA , KEELAPANDAL RAMAMOORTHY SHANKARA NARAYANAN , JECK SANDRA , KUHN JELAN
Abstract: A reverse-phase suspension polymerisation process for the manufacture of polymer beads comprising forming aqueous monomer beads of an aqueous solution comprising water-soluble ethylenically unsaturated monomer or monomer blend and polymerising the monomer or monomer blend to form polymer beads while suspended in a non-aqueous liquid, recovering polymer beads, and then cleaning the non-aqueous liquid in which the process comprises providing the non-aqueous liquid in a vessel (1), forming a suspension of monomer beads from the aqueous monomer or monomer blend in the non-aqueous liquid, initiating polymerisation to form polymerising beads, removing a suspension of the polymer beads in non-aqueous liquid from the vessel and recovering, water soluble or water swellable polymer beads from the suspension, in which the non-aqueous liquid contains impurities which comprise particles, and then transferring the non-aqueous liquid from the suspension to a cleaning stage, in which the cleaning stage provides a cleaned non-aqueous liquid suitable for use in a reverse-phase suspension polymerisation process, which cleaning stage comprises removing particles from the non-aqueous liquid in at least one filtration step. The invention also relates to the apparatus suitable for carrying out a reverse-phase suspension polymerisation and polymer beads obtainable by the process or employing the apparatus. The invention further relates to a cleaned non-aqueous liquid obtainable by the process.
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公开(公告)号：AU2014298550B2
公开(公告)日：2016-11-03
申请号：AU2014298550
申请日：2014-07-29
Applicant: BASF SE
Inventor： HESSE PASCAL , JELICIC ALEKSANDRA , FONSECA ZEPEDA GABRIELA EUGENIA , HASCHICK ROBERT , KEELAPANDAL RAMAMOORTHY SHANKARA NARAYANAN , NAYLOR GARETH IAN , BARRATT JOHN SCOTT , SOETJE OLIVER , LIEVRE MARCEL , RAINAU FLORIAN , LEBKUCHER MARK
Abstract: A reverse-phase suspension polymerisation process for the manufacture of polymer beads comprising forming aqueous monomer beads comprising an aqueous solution of water-soluble ethylenically unsaturated monomer or monomer blend and polymerising the monomer or monomer blend, to form polymer beads while suspended in a non-aqueous liquid, and recovering polymer beads, in which the process comprises providing in a vessel (1) a volume (2) of non-aqueous liquid wherein the volume of non-aqueous liquid extends between at least one polymer bead discharge point (3) and at least one monomer feed point (4), feeding the aqueous monomer or monomer blend through orifices (5) into, or onto, the non-aqueous liquid to form aqueous monomer beads, allowing the aqueous monomer beads to flow towards the polymer bead discharge point initiating polymerisation of the aqueous monomer beads to form polymerising beads, wherein the polymerising beads form polymer beads when they reach the polymer bead discharge point, removing a suspension of the polymer beads in non-aqueous liquid from the vessel at the polymer bead discharge point and recovering, water soluble or water swellable polymer beads from the suspension, in which the aqueous monomer or monomer blend and/or the orifices is/are vibrated such that the frequency multiplied by the weight average droplet diameter is between 150 and 800 mm/s. The invention also relates to the apparatus suitable for carrying out a reverse-phase suspension polymerisation and polymer beads obtainable by the process or employing the apparatus. Furthermore, the invention also relates to polymer beads having a weight mean particle size in the range of 0.05 to 5 mm which are held in a container in an amount of at least 300 kg having a standard deviation of particle size less than 20%. In addition, the invention also provides polymer beads having a weight mean particle size in the range 0.05 to 5 mm having a standard deviation of particle size less than 20% and having an amount of residual acrylamide of less than 500 ppm.
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公开(公告)号：CA2863836A1
公开(公告)日：2013-08-22
申请号：CA2863836
申请日：2013-02-15
Applicant: BASF SE
Inventor： WETTLING THOMAS , HIRSCH STEFAN , BRYM MARKUS , WEIS MARKUS , MUHLBACH KLAUS , CORBERAN ROC ROSA , HASCHICK ROBERT , DAISS ANDREAS , VOLLAND MARCO-CHRISTIAN
IPC: C08F10/10
Abstract: The invention relates to the production of isobutylene homopolymers having a weight-average molecular weight of 75,000 to 10,000,000 by means of the polymerization of isobutylene by (a) performing the polymerization at -80°C to -190°C, (b) using optionally halogenated C1 to C5 hydrocarbons as an inert solvent, (c) using a Lewis acid complex as a polymerization catalyst, and (d) performing the polymerization in the presence of at least one reaction accelerator in the form of an ethylenically saturated hydrocarbon compound, which contains an oxygen atom and no proton that can be emitted, and performing the polymerization in the presence of at least one chain length regulator, which contains a tertiary olefinic carbon atom.
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公开(公告)号：CA2919320C
公开(公告)日：2019-02-26
申请号：CA2919320
申请日：2014-07-29
Applicant: BASF SE
Inventor： HASCHICK ROBERT , JELICIC ALEKSANDRA , BARRATT JOHN SCOTT , HESSE PASCAL , SOETJE OLIVER , FONSECA ZEPEDA GABRIELA EUGENIA , KEELAPANDAL RAMAMOORTHY SHANKARA NARAYANAN , LANGLOTZ BJORN
Abstract: There is disclosed a reverse-phase suspension polymerisation process for the manufacture of polymer beads comprising forming aqueous monomer beads comprising an aqueous solution of water-soluble ethylenically unsaturated monomer or monomer blend and polymerising the monomer or monomer blend to form polymer beads while suspended in a non-aqueous liquid, and recovering polymer beads. In another of its aspects, the invention relates to the apparatus suitable for carrying out a reverse-phase suspension polymerisation and polymer beads obtained by the process or employing the apparatus.
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公开(公告)号：ZA201601174B
公开(公告)日：2017-06-28
申请号：ZA201601174
申请日：2016-02-22
Applicant: BASF SE
Inventor： LEBKÜCHER MARK , RAINAU FLORIAN , LIEVRE MARCEL , SOETJE OLIVER , HASCHICK ROBERT , HESSE PASCAL , BARRATT JOHN SCOTT , NAYLOR GARETH IAN , JELICIC ALEKSANDRA , KEELAPANDAL RAMAMOORTHY SHANKARA NARAYANAN , FONSECA ZEPEDA GABRIELA EUGENIA
Abstract: A reverse-phase suspension polymerization process for the manufacture of polymer beads comprising forming aqueous monomer beads comprising an aqueous solution of water-soluble ethylenically unsaturated monomer or monomer blend and polymerizing the monomer or monomer blend, to form polymer beads while suspended in a non-aqueous liquid, and recovering polymer beads, in which the process comprises providing in a vessel (1) a volume (2) of non-aqueous liquid wherein the volume of non-aqueous liquid extends between at least one polymer bead discharge point (3) and at least one monomer feed point (4), feeding the aqueous monomer or monomer blend through orifices (5) into, or onto, the non-aqueous liquid to form aqueous monomer beads, allowing the aqueous monomer beads to flow towards the polymer bead discharge point initiating polymerization of the aqueous monomer beads to form polymerizing beads, wherein the polymerizing beads form polymer beads when they reach the polymer bead discharge point, removing a suspension of the polymer beads in non-aqueous liquid from the vessel at the polymer bead discharge point and recovering, water soluble or water swellable polymer beads from the suspension, in which the aqueous monomer or monomer blend and/or the orifices is/are vibrated such that the frequency multiplied by the weight average droplet diameter is between 150 and 800 mm/s. The invention also relates to the apparatus suitable for carrying out a reverse-phase suspension polymerization and polymer beads obtainable by the process or employing the apparatus. Furthermore, the invention also relates to polymer beads having a weight mean particle size in the range of 0.05 to 5 mm which are held in a container in an amount of at least 300 kg having a standard deviation of particle size less than 20%. In addition, the invention also provides polymer beads having a weight mean particle size in the range 0.05 to 5 mm having a standard deviation of particle size less than 20% and having an amount of residual acrylamide of less than 500 ppm.
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