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    51.
    发明专利
    未知

    公开(公告)号：DE19919751A1

    公开(公告)日：2000-11-09

    申请号：DE19919751

    申请日：1999-04-29

    Applicant: BASF AG

    Inventor： AUWETER HELMUT ,  BOHN HERIBERT ,  LUEDDECKE ERIK

    IPC: A23K20/179 ,  A23K40/10 ,  A23L1/275 ,  A23L5/44 ,  A61K9/14 ,  A61K31/047 ,  A61K31/122 ,  A61K47/10 ,  C09B61/00 ,  C09B67/06 ,  C09B67/08 ,  C09B67/20 ,  C09B67/46 ,  A61K31/07

    Abstract: The invention relates to the production of a stable, aqueous dispersion or of a stable water-dispersible dry powder of xanthophylls chosen from a group consisting of astaxanthin, lutein and zeaxanthin, by a) dissolving one or more of the aforementioned xanthophylls in a water-miscible, organic solvent or a mixture of water and a water-miscible, organic solvent at temperatures greater than 30 DEG C; b) mixing this solution with an aqueous solution of a protective colloid, the solvent components being converted to the aqueous phase and the hydrophobic phase of the xanthophyll being produced in the form of a nanodisperse phase c) and optionally, converting the resulting dispersion into a water-dispersible dry powder by separating off the solvent and the water and drying, optionally in the presence of a coating material. The invention is characterised in that the protective colloid used in step b) of the method is casein or a caseinate.

    Stable, aqueous dispersions and stable, water-dispersible dry xanthophyll powder, their production and use
    55.
    发明专利
    Stable, aqueous dispersions and stable, water-dispersible dry xanthophyll powder, their production and use 未知

    公开(公告)号：AU5559698A

    公开(公告)日：1998-07-03

    申请号：AU5559698

    申请日：1997-12-01

    Applicant: BASF AG

    Inventor： AUWETER HELMUT ,  BOHN HERIBERT ,  LUDDECKE ERIK

    IPC: A23K20/179 ,  A23L1/275 ,  A23L5/44 ,  A61K9/14 ,  A61K9/16 ,  A61K31/047 ,  A61K31/122 ,  A61K47/08 ,  C09B61/00 ,  C09B67/42 ,  C09B67/46

    Abstract: Preparation of a stable aqueous dispersion, or a stable water-dispersible dry powder, of xanthophylls, which comprisesa) preparing a molecularly dispersed solution of at least one xanthophyll, with or without an emulsifier and/or an edible oil, in a water-miscible organic solvent, or a mixture of water and a water-miscible organic solvent, at above 30° C.,b) mixing this solution with an aqueous solution of a mixture of protective colloids,b1) in which the mixture comprises at least one low-molecular-weight protective colloid component and at least one high-molecular-weight protective colloid component, whose mean molecular weights differ by at least 10,000,b2) the solvent component being transferred to the aqueous phase and the hydrophobic phase of the xanthophyll being formed as a nanodispersed phasec) and if appropriate, to prepare a water-dispersible dry powder, freeing the resulting dispersion from the solvent and the water and drying it in the presence or absence of a coating material.

    METHOD FOR PRODUCING MULTI-LAYERED SURFACE STRUCTURES, PARTICLES OR FIBRES
    56.
    发明专利
    METHOD FOR PRODUCING MULTI-LAYERED SURFACE STRUCTURES, PARTICLES OR FIBRES 未知

    公开(公告)号：CA2584764C

    公开(公告)日：2013-09-10

    申请号：CA2584764

    申请日：2005-10-20

    Applicant: BASF AG

    Inventor： FREUDENBERG UWE ,  ZSCHOCHE STEFAN ,  WERNER CARSTEN ,  SCHMIDT KATI ,  BEHRENS SVEN HOLGER ,  AUWETER HELMUT

    IPC: B32B27/04 ,  C08J7/04 ,  C08J7/14 ,  C09D101/02

    Abstract: The invention relates to a method for producing multi-layered surface structures, particles or fibres. Said method comprises the following steps: the reactive polycarboxylic acid or a derivative thereof is applied to a flat, particle or fibre-shaped support material which already contains the groups which can react with polycarboxylic acid or a derivative thereof, in order to form a covalent connection or is initially provided with said groups; (b) the carrier material treated in step a is, optionally, heated to between 60 ~C to 130 ~C, preferably to 80 ~C to 120 ~C due to acceleration, completion or additional optimisation of the covalent connections; (c) cellulose is applied to the carrier material which can form a covalent connection with the polycarboxylic acid or the derivatives thereof. The invention also relates to the use of the inventive method for producing multi-layered surface structures, particles or fibres for hydrophilizing surfaces, in particular for promoting adhesion between hydrophobic and hydrophilic materials and to improve the washability of synthetic fibres. The surfaces which are hydrophilizied by said method form the flat, particle or fibre-shaped carrier material.

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