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    52.
    发明专利
    未知

    公开(公告)号：BR0210362A

    公开(公告)日：2004-08-10

    申请号：BR0210362

    申请日：2002-06-14

    Applicant: BASF AG

    Inventor： HAMERS CHRISTOPH ,  BOECKH DIETER ,  SCHMIDT KATI

    IPC: D06L1/12 ,  C11D1/02 ,  C11D1/38 ,  C11D1/66 ,  C11D1/90 ,  C11D1/94 ,  C11D3/00 ,  C11D3/37 ,  C11D17/00 ,  D06M11/00 ,  D06M11/155 ,  D06M13/46 ,  D06M15/263 ,  D06M15/285 ,  D06M15/356 ,  D06M15/61 ,  D06M23/08 ,  D06M15/00

    Abstract: Cationically surface-modified hydrophilic crosslinked polymer nanoparticles are claimed, as is also stain-release treatment of textile or non-textile surfaces using aqueous dispersions of the particles. Independent claims are included for: (1) cationically-modified hydrophilic crosslinked polymer nanoparticles of size 10 nm to 2 microns which are surface-coated with cationic polymers, polyvalent metal ions or cationic surfactants, the crosslinked polymer comprising (by wt.): (a) carboxyl group-containing ethylenically-unsaturated monomers or salts (60-99.9%); (b) water-insoluble mono- ethylenically-unsaturated monomers (0-40%); (c) multi-ethylenically-unsaturated monomer (0.01-30%); (d) sulfonic- and/or phosphonic-acid-containing monomers (0-25%); and (e) water-soluble nonionic monomers (0-30%); (2) aqueous dispersions of such particles, the dispersions being stabilized with anionic, nonionic and/or betaine-type surfactants and/or protective colloids; and (3) stain-releasing treatment of textile or non-textile surfaces using the dispersions.

    TREATMENT METHOD, WHICH PROMOTES THE REMOVAL OF DIRT, FOR THE SURFACES OF TEXTILES AND NON-TEXTILES
    53.
    发明专利
    TREATMENT METHOD, WHICH PROMOTES THE REMOVAL OF DIRT, FOR THE SURFACES OF TEXTILES AND NON-TEXTILES 未知

    公开(公告)号：CA2450264A1

    公开(公告)日：2002-12-27

    申请号：CA2450264

    申请日：2002-06-14

    Applicant: BASF AG

    Inventor： BOECKH DIETER ,  SCHMIDT KATI ,  HAMERS CHRISTOPH

    IPC: D06L1/12 ,  C11D1/02 ,  C11D1/38 ,  C11D1/66 ,  C11D1/90 ,  C11D1/94 ,  C11D3/00 ,  C11D3/37 ,  C11D17/00 ,  D06M11/00 ,  D06M11/155 ,  D06M13/46 ,  D06M15/263 ,  D06M15/285 ,  D06M15/356 ,  D06M15/61 ,  D06M23/08

    Abstract: The invention relates to a treatment method, which promotes the removal of dirt, for the surfaces of textiles and non-textiles. According to said metho d, cationically modified, hydrophilic nanoparticles, based on cross-linked polymers, are applied from an aqueous dispersion to the surface of the materials. Said cross-linked polymers consist of (a) between 60 and 99.99 wt . % of one or more ethylenically unsaturated monomers containing carboxyl groups, or the salts thereof, (b) between 0 and 40 wt. % of one or more wate r- insoluble, monoethylenically unsaturated monomers, (c) between 0.01 and 30 w t. % of one or more ethylenically polyunsaturated monomers, (d) between 0 and 2 5 wt. % of one or more monomers containing sulphonic acid and/or phosphonic acid, or the salts thereof, (e) between 0 and 30 wt. % of one or more water- soluble, non-ionic monomers. The dispersion of the hydrophilic nanoparticles can be stabilised with anionic, non-anionic and/or betainic emulsifiers and/ or protective colloids. The hydrophilic nanoparticles have a particle size of between 10 and 2 .mu.m and are modified cationically by covering their surfa ce with one or more cationic polymers, one or more polyvalent metallic ions and/or one or more cationic surfactants.

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