3.
    发明专利
    未知

    公开(公告)号:DE102005038037A1

    公开(公告)日:2007-02-15

    申请号:DE102005038037

    申请日:2005-08-09

    Applicant: BASF AG

    Abstract: The invention relates to a process for continuously preparing styrene polymers by anionic spray polymerization, which comprises i) styrene and the initiator solution being mixed in a dynamic or static mixer and then the mixture being sprayed, ii) the resultant droplets passing from the liquid monomer state to the melted polymer state during their free fall in the spraying tower, iii) the melt droplets being collected as a melt at the foot of the tower, the melt having a monomer content of below 1%, preferably below 0.1% (

    PROCESS FOR PRODUCTION OF POLYMER POWDERS CONTAINING VINYLFORMAMIDE UNITS

    公开(公告)号:CA2626712A1

    公开(公告)日:2007-05-18

    申请号:CA2626712

    申请日:2006-10-27

    Applicant: BASF AG

    Abstract: A process for producing a polymer powder comprising vinylformamide units by free radical polymerization of an aqueous solution of N-vinylformamide and if appropriate other monomers and drying the polymer which comprises an aqueous monomer solution comprising N-vinylformamide and at least one polymerization initiator being spray dispensed as an aerosol or dropletized at the top of a heatable tower-shaped reactor, then polymerizing the aerosol or droplets in an inert gas atmosphere to form a finely divided solid and discharging the finely divided polymer from the reactor.

    8.
    发明专利
    未知

    公开(公告)号:DE102005044035A1

    公开(公告)日:2007-03-15

    申请号:DE102005044035

    申请日:2005-09-14

    Applicant: BASF AG

    Abstract: In a process for dropletizing a liquid by means of a dropletizer plate at least the underside of the dropletizer plate has at least in part a contact angle of at least 60° with regard to the liquid to be dropletized.

Patent Agency Ranking