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    41.
    发明专利
    未知

    公开(公告)号：DE10141006A1

    公开(公告)日：2003-03-06

    申请号：DE10141006

    申请日：2001-08-21

    Applicant: BASF AG

    Inventor： BOECKH DIETER ,  BECKER STEFAN ,  HAMERS CHRISTOPH ,  SCHMIDT KATI

    IPC: C08F220/04 ,  C08F220/34 ,  C08F220/60 ,  C11D3/37 ,  D06M15/37 ,  C09D123/08 ,  C09D135/00 ,  C09D7/02 ,  C08F220/56 ,  C08F226/00

    Abstract: The invention relates to the use of amphoteric polymers based on ethylenically unsaturated monomers, as additives for promoting dirt separation in products for surface conditioning. Said polymers contain (a) 20 to 95 wt. % of at least one monoethylenically unsaturated carboxylic acid, (b) 5 to 80 wt. % of at least one monoethylenically unsaturated cationic monomer, (c) 0 to 75 wt. % of other monoethylenically unsaturated non-ionic or amphoteric monomers, (d) 0 to 20 wt. % of other monoethylenically unsaturated monomers containing acid groups and (e) 0 to 15 wt. % of multi-ethylenically unsaturated monomers, said compounds being incorporated by statistic or block polymerisation. Said polymers have an isoelectric point from 2.5 to 11 and a mean molar weight MW from 5,000 to 5,000,000.

    43.
    发明专利
    未知

    公开(公告)号：BRPI0606918A2

    公开(公告)日：2009-12-01

    申请号：BRPI0606918

    申请日：2006-02-23

    Applicant: BASF AG

    Inventor： GASCHLER WOLFGANG ,  DANNER THOMAS ,  BAUDER ANDREAS ,  FUNKHAUSER STEFFEN ,  HAMERS CHRISTOPH

    IPC: C08F2/24 ,  B01F3/08

    Abstract: Preparation of an aqueous polymer dispersion comprises radically initiated polymerization of an ethylenically unsaturated monomer in the presence of dispersing additives, optionally a water soluble organic solvent in an aqueous medium, where at least a partial quantity of ethylenic unsaturated monomer and an aqueous soluble organic solvent exists with an average droplet diameter of = 1000 nm (mini-emulsion). Preparation of an aqueous polymer dispersion comprises radically initiated polymerization of an ethylenically unsaturated monomer in the presence of dispersing additives, optionally a water soluble organic solvent in an aqueous medium, where at least a partial quantity of ethylenically unsaturated monomer and an aqueous soluble organic solvent exists with an average droplet diameter of = 1000 nm (mini-emulsion), where the mini-emulsion is prepared by a raw emulsion with an average diameter of >= 2 mu m, containing at least partial quantity of water, dispersing additives, ethylenically unsaturated monomer, optionally a water soluble organic solvent, and passed through a micro-porous membrane with an average pore diameter of = 1000 nm.

    44.
    发明专利
    未知

    公开(公告)号：BRPI0517794A

    公开(公告)日：2008-10-21

    申请号：BRPI0517794

    申请日：2005-11-05

    Applicant: BASF AG

    Inventor： SCHMIDT-THUEMMES JUERGEN ,  HAMERS CHRISTOPH

    IPC: D21H19/42

    Abstract: An aqueous paper coating slip comprising organic polymers as binders and inorganic pigments, wherein the binders are present at least partly in the form of a pigment-polymer hybrid in which the binder is chemically or physically bound to the inorganic pigments.

    49.
    发明专利
    未知

    公开(公告)号：DE50302436D1

    公开(公告)日：2006-04-20

    申请号：DE50302436

    申请日：2003-04-15

    Applicant: BASF AG

    Inventor： ETTL ROLAND ,  HAMERS CHRISTOPH ,  SCHMIDT-THUEMMES JUERGEN

    IPC: C08F4/40 ,  C08F251/00 ,  C08F212/08 ,  C08F236/04 ,  C08F251/02 ,  C08L51/02 ,  C09D151/02 ,  D21H17/35 ,  D21H21/16

    Abstract: Aqueous polymer dispersions which are obtainable by free radical copolymerization of (a) from 0.1 to 99.9% by weight of styrene and/or methylstyrene, (b) 0.1-99.9% by weight of 1,3-butadiene and/or isoprene and (c) from 0 to 40% by weight of other ethylenically unsaturated copolymerizable monomers, the sum of the monomers (a), (b) and (c) always being 100, in the presence of from 10 to 40% by weight, based on the monomers used, of at least one degraded starch having a molecular weight Mn of from 500 to 40 000 and of water-soluble redox catalysts are prepared by free radical copolymerization of the monomers (a), (b) and, if required, (c) in an aqueous medium in the presence of a degraded starch having a molecular weight Mn of from 500 to 10 000 and redox initiators and are used as engine sizes and surface sizes for paper.

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