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    32.
    发明专利
    未知

    公开(公告)号：AT459664T

    公开(公告)日：2010-03-15

    申请号：AT06807519

    申请日：2006-10-25

    Applicant: BASF SE

    Inventor： WESTER BETTINA ,  BRAIG VOLKER ,  GAUWEILER WERNER ,  LEDUC MARC ,  BECKER STEFAN ,  FEUERHAKE ROBERT

    IPC: C08F26/02 ,  C08F290/14 ,  D21H17/34

    Abstract: The invention relates to aqueous dispersions of water-soluble polymers of N-vinyl-carboxamides, which are substantially salt-free and comprise anionic polymeric stabilizers having a comb-like molecular structure, processes for the preparation of the dispersions in the presence of anionic polymeric stabilizers having a comb-like molecular structure and the use of the dispersions as retention aids or fixing agents in papermaking.

    34.
    发明专利
    未知

    公开(公告)号：DE50309641D1

    公开(公告)日：2008-05-29

    申请号：DE50309641

    申请日：2003-05-19

    Applicant: BASF SE

    Inventor： GRIMM GUENTHER ,  BRAIG VOLKER ,  CHAMP SIMON ,  MAHR NORBERT

    IPC: C08F8/00 ,  C08G81/02 ,  C08G85/00

    Abstract: Hydrophobically modified polymers containing vinylamine or ethylenimine units and obtainable by reacting (a) polymers containing vinylamine or ethylenimine units with (b) compounds of the formula R-A-(EO, PO, BuO)n-X (I), where R is C4- to C26-alkyl or C4- to C26-alkenyl, A is O, NH or COO, EO is an ethylene oxide unit, PO is a propylene oxide unit, BuO is a butylene oxide unit, n is from 1 to 250 and X is a functional group which can be covalently bonded to an OH group, process for the preparation of hydrophobically modified polymers containing vinylamine or ethylenimine units by reacting polymers containing vinylamine or ethylenimine units with a water repellent of the formula I and use of the polymers thus obtainable as an additive to paperstock in papermaking.

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