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    VERFAHREN ZUR CHEMISCHEN MODIFIZIERUNG VON POLYSACCHARIDEN
    2.
    发明公开
    VERFAHREN ZUR CHEMISCHEN MODIFIZIERUNG VON POLYSACCHARIDEN 有权
    方法的多糖的化学修饰

    公开(公告)号：EP1883654A1

    公开(公告)日：2008-02-06

    申请号：EP06763083.0

    申请日：2006-05-03

    申请人： Evonik Degussa GmbH

    发明人： SCHICK, Georg ,  PASCALY, Matthias ,  WILDMOSER, Stefan ,  WENK, Hans, Henning ,  JOHN, Kathrin ,  KÖHLE, Hans-Jürgen

    IPC分类号： C08B37/00

    CPC分类号： C08B37/0093 ,  C08B15/00 ,  C08B31/00 ,  C08B37/003 ,  C08B37/0045 ,  C08B37/0087 ,  C08B37/0096

    摘要： The invention relates to a method for chemically modifying polysaccharides with the aid of a mechanical device and of at least one modifying reagent. The method is characterized in that the polysaccharide constituent is subjected at least once to a treatment by a roll mill during which at least two adjacent and counter-rotating rolls rotate at different speeds, and the polysaccharide constituent is mixed with the modifying reagent before and/or during the mechanical treatment. During this method, typically pectins, carob seed grain, guar meal and alginates are used as the polysaccharide constituent, and epoxides, amines or carboxylic acid derivatives are used as modifying reagents. The mechanical treatment can be repeated one to three times in a multiple roll mill, preferred rotating speeds of the adjacent rolls typically differing by 200 %. The polysaccharides, which are mechanically modified in an extremely homogeneous manner according to the inventive method, are preferably used as thickening agents, gelling agents, emulsifiers, food additives, cosmetic additives, as well as hair and fiber care agents.

    FESTE, REDISPERGIERBARE EMULSION
    4.
    发明公开
    FESTE, REDISPERGIERBARE EMULSION 有权
    FESTE，REDISPERGIERBARE EMULSION

    公开(公告)号：EP1877171A1

    公开(公告)日：2008-01-16

    申请号：EP06763082.2

    申请日：2006-05-03

    申请人： Degussa GmbH

    发明人： WENK, Hans Henning ,  SCHICK, Georg ,  JOHN, Kathrin

    IPC分类号： B01J2/08 ,  C11D3/37 ,  C11D17/00

    CPC分类号： C11D3/222 ,  C11D3/001 ,  C11D17/0039

    摘要： The invention relates to a solid redispersible emulsion, which is comprised of an oil-in-water emulsion consisting of a laundry care constituent, which is encapsulated in an enclosure. This enclosure is stabilized by polyvalent metal ions and, initially, is water-insoluble and is rendered soluble by adding metal ions. The enclosure material is preferably a biodegradable material and, in particular, a polysaccharide, such as alginates, pectins or carrageenans. These solid and redispersible emulsions are used, in particular, in laundry care products.