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    Reverse-phase polymerisation process
    3.
    发明专利
    Reverse-phase polymerisation process 未知

    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

    IPC: C08F2/32 ,  C08F20/56

    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.

    PRODUCTION OF POLYMERS BY MEANS OF CONTROLLED RADICAL POLYMERISATION
    4.
    发明专利
    PRODUCTION OF POLYMERS BY MEANS OF CONTROLLED RADICAL POLYMERISATION 未知

    公开(公告)号：IN2321CHN2014A

    公开(公告)日：2015-06-19

    申请号：IN2321CHN2014

    申请日：2014-03-26

    Applicant: BASF SE

    Inventor： HESSE PASCAL ,  FLEISCHMANN SVEN ,  BECKER FLORIAN ,  MÜHLBACH KLAUS ,  HUNGENBERG KLAUS DIETER ,  BRYM MARKUS ,  KLEINER MATTHIAS

    IPC: C08F4/10 ,  C08F4/40 ,  C08F293/00

    Abstract: 12314 45155635553725120 151206120 7120 Method for producing polymers by means of controlled radical polymerisation wherein the polymerisation of one or several radically polymerisable monomers of general formula (I) where R R R are H C Calkyl R is C(=O)OR C(=O)NHR C(=O)NRR OC(=O)CH C(=O)OH CN aryl hetaryl C(=O)OROH C(=O)ORSi(OR) halogen NHC(O)H P(=O)(OR) R is C Calkyl R is C C alkyl R is C Calkyl and R is H C Calkyl occurs in the presence of a. one or several catalysts containing Cu in the form of Cu(0) Cu(l) Cu (II) or mixtures thereof b. one or several initiators selected from the group of organic halogenides or pseudohalogenides c. one or several ligands d. optionally one or several solvents and e. optionally one or several inorganic halogenide salts said method consisting of the following steps i) addition of the catalyst a. ii) optional addition of monomers of general formula (I) iii) optional addition of solvent d. iv) addition of ligand c. v) addition of initiator b. vi) addition of monomers of general formula (I) and vii) optional addition of inorganic halogenide salts e. on the proviso that the addition of at least some of the monomers of general formula (I) occurs immediately before or shortly after the last of the steps i) iv) and v).

    REVERSE-PHASE POLYMERISATION PROCESS
    5.
    发明专利
    REVERSE-PHASE POLYMERISATION PROCESS 未知

    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

    IPC: C08F2/32 ,  C08F20/56

    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.

    REVERSE-PHASE POLYMERISATION PROCESS
    9.
    发明专利
    REVERSE-PHASE POLYMERISATION PROCESS 未知

    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.

    Reverse-phase polymerisation process
    10.
    发明专利
    Reverse-phase polymerisation process 未知

    公开(公告)号：AU2014298551B2

    公开(公告)日：2016-10-06

    申请号：AU2014298551

    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

    IPC: C08F2/32 ,  C08F20/56

    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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