45.
    发明专利
    未知

    公开(公告)号:DE50104122D1

    公开(公告)日:2004-11-18

    申请号:DE50104122

    申请日:2001-06-13

    Applicant: BASF AG

    Abstract: The present invention relates to a particulate, linear, sheet-like or three-dimensional structure comprising, at least on its surface, a hydrophilicizing amount of at least one acylated polyamine, where at least some of the polyamine nitrogen atoms bear acyl radicals of the formula I R 1 -CO- (I) where R 1 is hydrogen, C 1 -C 27 -alkyl, C 7 -C 27 -alkenyl or C 6 -C 10 -aryl, and where the alkyl, alkenyl and aryl groups may bear at least one substituent selected from the class consisting of hydroxyl, alkoxy, alkoxycarbonyl and NE 1 E 2 , where E 1 and E 2 may be identical or different and are hydrogen, alkyl or acyl, to the use of acylated polyamines for modifying the surface properties of solids, and also to a process for modifying the surface properties of particulate, linear, sheet-like, or three-dimensional structures.

    46.
    发明专利
    未知

    公开(公告)号:DE10047717A1

    公开(公告)日:2002-04-18

    申请号:DE10047717

    申请日:2000-09-27

    Applicant: BASF AG

    Abstract: Hydrophilic open-celled resilient foams containing melamine-formaldehyde resins, characterized by a droplet absorption rate of less than 5 seconds and an EU standard EN ISO 14184-1 formaldehyde emission of less than 100 mg of formaldehyde/kg of foam, and obtainable by(a) heating an aqueous solution or dispersion each containing at least a melamine-formaldehyde precondensate, an emulsifier, a blowing agent and a curing agent to form a foam and crosslink the precondensate,(b) then conditioning the foam at from 120 to 300° C. for from 1 to 180 minutes to remove volatiles, and(c) treating the foam during the conditioning or thereafter with at least one hydrophilicizer and/or with ozone, a corona discharge or a plasma,are useful in hygiene articles to acquire, distribute and immobilize body fluids.

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