Membranas mejoradas
    12.
    发明专利

    公开(公告)号:ES2727636T3

    公开(公告)日:2019-10-17

    申请号:ES14727490

    申请日:2014-05-30

    Applicant: BASF SE

    Abstract: Membrana que comprende un copolímero de bloques que comprende bloques de éter de poliarileno y bloques de poli(óxido de alquileno), en el que dichos bloques de poli(óxido de alquileno) comprenden al menos un segmento de poli(óxido de etileno) y al menos un segmento de al menos un poli(óxido de alquileno) que es diferente del poli(óxido de etileno), en el que dichos bloques de éter de poliarileno corresponden a la fórmula IV**Fórmula** en la que D representa un enlace químico u O, Ar = 1,4-fenileno, t = 1, q = 0, T = SO2 e Y = SO2 y en el que dichos bloques de poli(óxido de alquileno) comprenden segmentos de óxido de etileno en las posiciones terminales de dichos bloques de óxido de alquileno.

    POLYARYLETHERSULFONE COPOLYMERS
    17.
    发明专利

    公开(公告)号:SG11201509031RA

    公开(公告)日:2015-11-27

    申请号:SG11201509031R

    申请日:2014-04-30

    Applicant: BASF SE

    Abstract: The invention relates to a method for preparing polyarylethersulfone-polyalkylene oxide block copolymers (PPC) comprising the polycondensation of a reaction mixture (RG) comprising the components: (A1) at least one aromatic dihalogen compound, (B1) at least one aromatic dihydroxyl compound, (B2) at least one polyalkylene oxide having at least two hydroxyl groups, (C) at least one aprotic polar solvent and (D) at least one metal carbonate, where the reaction mixture (RG) does not comprise any substance which forms an azeotrope with water.

    PROCESS FOR PREPARING A BLOCK COPOLYMER

    公开(公告)号:CA2842502A1

    公开(公告)日:2013-02-14

    申请号:CA2842502

    申请日:2012-08-01

    Applicant: BASF SE

    Abstract: The present invention relates to a method for producing a block copolymer containing polyaryl ether blocks and polyalkylene oxide blocks, comprising the reaction of an HO-terminated polyaryl ether with a monomeric alkylene oxide. The present invention also relates to a block copolymer that can be obtained from said method. The invention further relates to a triblock polymer having polyalkylene oxide/polyaryl ether/polyalkylene oxide blocks.

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