3.
    发明专利
    未知

    公开(公告)号:AT424432T

    公开(公告)日:2009-03-15

    申请号:AT06725178

    申请日:2006-03-20

    Applicant: BASF SE

    Abstract: The present invention relates to the production of a polymer powder with improved powder properties, and to its use as impact modifier for rigid polyvinyl chloride (PVC) applications. The impact modifier is composed of emulsion polymer particles which have a core-shell structure, where the shell is composed of a hard polymer and the core is composed of a soft, crosslinked rubber polymer.

    PROCEDIMIENTO PARA LA ELABORACION DE POLVOS POLIMERICOS.

    公开(公告)号:ES2320803T3

    公开(公告)日:2009-05-28

    申请号:ES06725178

    申请日:2006-03-20

    Applicant: BASF SE

    Abstract: Procedimiento de elaboración de polvo de polímero a partir de una disolución acuosa de polímero, caracterizado porque la dispersión acuosa de las partículas de polímero II se obtiene mediante polimerización acuosa por emulsión radicalmente inducida de al menos un monómero etilénicamente insaturado C en presencia de partículas de polímero I dispersamente distribuidas, a) teniendo el polímero del, al menos uno, monómero insaturado C una temperatura de transición vítrea > 60ºC, b) obteniéndose las partículas de polímero I dispersamente distribuidas mediante polimerización acuosa por emulsión radicalmente inducida de una mezcla de monómeros I, que consiste en del 98,0 al 99,9% en peso de al menos un monómero etilénicamente insaturado A, cuyo polímero tiene una temperatura de transición vítrea 90% en peso:

    8.
    发明专利
    未知

    公开(公告)号:DE502004009537D1

    公开(公告)日:2009-07-09

    申请号:DE502004009537

    申请日:2004-11-05

    Applicant: BASF SE

    Abstract: Process for preparing polymer powder from an aqueous polymer dispersion with water-soluble compounds, the fraction of such compounds being smaller than that of said aqueous polymer dispersion and being based on the polymer present in the form of polymer particles insoluble in water, which comprises subjecting the aqueous polymer dispersion to membrane filtration in a first step of the process and to spray drying in a subsequent second step of the process.

    9.
    发明专利
    未知

    公开(公告)号:DE502006003014D1

    公开(公告)日:2009-04-16

    申请号:DE502006003014

    申请日:2006-03-20

    Applicant: BASF SE

    Abstract: The present invention relates to the production of a polymer powder with improved powder properties, and to its use as impact modifier for rigid polyvinyl chloride (PVC) applications. The impact modifier is composed of emulsion polymer particles which have a core-shell structure, where the shell is composed of a hard polymer and the core is composed of a soft, crosslinked rubber polymer.

    10.
    发明专利
    未知

    公开(公告)号:AT432297T

    公开(公告)日:2009-06-15

    申请号:AT04818384

    申请日:2004-11-05

    Applicant: BASF SE

    Abstract: Process for preparing polymer powder from an aqueous polymer dispersion with water-soluble compounds, the fraction of such compounds being smaller than that of said aqueous polymer dispersion and being based on the polymer present in the form of polymer particles insoluble in water, which comprises subjecting the aqueous polymer dispersion to membrane filtration in a first step of the process and to spray drying in a subsequent second step of the process.

Patent Agency Ranking