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    REVERSE-PHASE POLYMERISATION PROCESS
    14.
    发明专利
    REVERSE-PHASE POLYMERISATION PROCESS 未知

    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.

    Reverse-phase polymerisation process
    15.
    发明专利
    Reverse-phase polymerisation process 未知

    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

    IPC: C08F2/32 ,  B01D29/00 ,  C08F20/56 ,  C08J11/02

    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.

    Reverse-phase polymerisation process
    16.
    发明专利
    Reverse-phase polymerisation process 未知

    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

    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.

    PRODUCCION DE POLIMEROS POR MEDIO DE POLIMERIZACION CONTROLADA POR RADICALES.
    18.
    发明专利
    PRODUCCION DE POLIMEROS POR MEDIO DE POLIMERIZACION CONTROLADA POR RADICALES. 未知

    公开(公告)号：MX2014002011A

    公开(公告)日：2014-03-27

    申请号：MX2014002011

    申请日：2012-08-30

    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 ,  C08F297/00

    Abstract: Se describe un proceso para preparar polimeros por polimerización controlada por radicales libres, en donde la polimerización de uno o más monómeros polimerizables por radicales libres de la fórmula general (I) (ver Fórmula) donde R1, R2, R3 son cada uno H, alquilo de C1-C4, R4 es C (=O) OR5 , C (=O) NHR15, C (=O) NR5R6, OC (=O) CH3, C (=O) OH, CN, arilo, hetarilo, C (=O) OR5OH, C (=O) OR5Si (OR5)3, halógeno, NHC (O) H, P (=O) (OR7)2, (ver Fórmula) R5 es alquilo de C1-C20, R15 es alquilo de C1-C20, R6 es alquilo de C1-C20, R7 es H, alquilo de C1-C20, en presencia de a., uno o más catalizadores comprende Cu en forma de Cu(0), Cu(I), Cu(II) o mezclas de los mismos, b. uno o más iniciadores seleccionados del grupo que consiste de haluros orgánicos o pseudohaluros, c. uno o más ligandos, d. opcionalmente uno o más solventes, e. opcionalmente una o más sales de haluro inorgánico, y comprende las etapas de i) adición del catalizador a., ii) opcionalmente, adición de monómeros de la fórmula general (I), iii) opcionalmente, adición del solvente d., iv) adición del ligando c., y) adición del iniciador b., vi) adición de monómeros de la fórmula general (I), vii) opcionalmente, adición de las sales de haluro inorgánico e., con la condición de que la adición de al menos parte de los monómeros de la fórmula general (I) se lleve a cabo inmediatamente antes o poco después de la última de las etapas de i), iv) y v).

    REVERSE-PHASE POLYMERISATION PROCESS
    20.
    发明专利
    REVERSE-PHASE POLYMERISATION PROCESS 未知

    公开(公告)号：CA2919311C

    公开(公告)日：2020-06-30

    申请号：CA2919311

    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

    IPC: C08F2/32 ,  B01D29/00 ,  C08F20/56 ,  C08J11/02

    Abstract: A reverse-phase suspension polymerisation process for the manufacture of polymer beads comprising forming a suspension of monomer beads from the aqueous monomer or monomer blend in 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, then transferring the non-aqueous liquid from the suspension to a cleaning stage, which provides a cleaned non-aqueous liquid suitable for use in a reverse-phase suspension polymerisation process by 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 obtained by the process or employing the apparatus.

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