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    A process for preparing an aqueous dispersion of microparticles
    11.
    发明专利
    A process for preparing an aqueous dispersion of microparticles 未知

    公开(公告)号：AU2016341234A1

    公开(公告)日：2018-04-26

    申请号：AU2016341234

    申请日：2016-10-20

    Applicant: BASF SE

    Inventor： WINKELMANN MARION ,  MUELHEIMS KERSTIN ,  TAUBER RALPH ,  FUCHS YANNICK ,  CETINKAYA MURAT ,  SACHWEH BERND

    IPC: B01J13/18 ,  A01N25/28 ,  A61K9/50 ,  C09B67/02

    Abstract: The present invention relates to a process for preparing an aqueous dispersion of microparticles containing a water-insoluble, solid, non-polymeric, organic active or functional material (M) and an aminoplast resin (A) which surrounds or embeds material (M), which comprises the following steps: i) providing an aqueous slurry of the material (M) in the form of coarse particles; ii) subjecting the aqueous slurry to shear forces such that the coarse particles of the material (M) are comminuted and an aqueous suspension of fine particles of the material (M) is obtained; iii) performing a polycondensation of an aminoplast pre-condensate during step (ii) or in the aqueous suspension of the fine particles of the material (M) obtained in step (ii); wherein step (ii) is performed in the presence of at least one protective colloid and in the presence of at least a portion of the aminoplast pre-condensate subjected to the polycondensation of step (iii).

    A process for preparing an aqueous dispersion of microparticles
    15.
    发明专利
    A process for preparing an aqueous dispersion of microparticles 未知

    公开(公告)号：AU2016341234B2

    公开(公告)日：2021-03-25

    申请号：AU2016341234

    申请日：2016-10-20

    Applicant: BASF SE

    Inventor： WINKELMANN MARION ,  MUELHEIMS KERSTIN ,  TAUBER RALPH ,  FUCHS YANNICK ,  CETINKAYA MURAT ,  SACHWEH BERND

    IPC: B01J13/18 ,  A01N25/28 ,  A61K9/50 ,  C09B67/02

    Abstract: The present invention relates to a process for preparing an aqueous dispersion of microparticles containing a water-insoluble, solid, non-polymeric, organic active or functional material (M) and an aminoplast resin (A) which surrounds or embeds material (M), which comprises the following steps: i) providing an aqueous slurry of the material (M) in the form of coarse particles; ii) subjecting the aqueous slurry to shear forces such that the coarse particles of the material (M) are comminuted and an aqueous suspension of fine particles of the material (M) is obtained; iii) performing a polycondensation of an aminoplast pre-condensate during step (ii) or in the aqueous suspension of the fine particles of the material (M) obtained in step (ii); wherein step (ii) is performed in the presence of at least one protective colloid and in the presence of at least a portion of the aminoplast pre-condensate subjected to the polycondensation of step (iii).

    PROCESS FOR PREPARATION OF MICROCAPSULES
    18.
    发明专利
    PROCESS FOR PREPARATION OF MICROCAPSULES 未知

    公开(公告)号：CA3012160A1

    公开(公告)日：2017-08-17

    申请号：CA3012160

    申请日：2017-02-02

    Applicant: BASF SE

    Inventor： BURAKOWSKA-MEISE EWELINA ,  WITTELER HELMUT ,  BAUER VOLKER ,  JENEWEIN STEFAN ,  HUEFFER STEPHAN ,  SPANGENBERG OLIVER ,  FISCHER STEFAN ,  NIELSEN JESPER DUUS ,  CETINKAYA MURAT

    IPC: B01J13/14

    Abstract: Process for the preparation of microcapsules comprising the steps (a) preparation of an aqueous biphasic system by mixing (i) component (a1 ) comprising a component A selected from the group of polymers consisting of polyethylene glycol vinyl acetate comb polymers, polycarboxylates, polyethers, polyaspartates, polyvinylpyrrolidone, polyamines, and polylysine; wherein component (a1 ) is a monophasic system at 23°C, and forms a monophasic system at 23°C if mixed with water in the range of from 1 :99 to 99:1 by weight, and (ii) component (a2) containing water and a water-soluble component B, wherein water-soluble component B is different from component A, and wherein (a2) is a monophasic system at 23°C, and (iii) at least one monomer (a3), and (iv) optionally at least one initiator (a4), wherein (a1 ), (a2), (a3), and (a4) can be mixed together in any order or simultaneously, followed by (b) optionally shearing of the biphasic system to form an emulsion, and (c) polymerization of monomer (a3).

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