23.
    发明专利
    未知

    公开(公告)号:DE10351401A1

    公开(公告)日:2005-06-09

    申请号:DE10351401

    申请日:2003-11-04

    Applicant: BASF AG

    Abstract: The invention relates to a method for the production of highly functional, highly branched polyureas. Said method consists in reacting one or several carbonates with one or several amines comprising at least two primary and/or secondary amino groups. At least one amine comprises at least three primary and/or secondary amino groups.

    30.
    发明专利
    未知

    公开(公告)号:DE50305493D1

    公开(公告)日:2006-12-07

    申请号:DE50305493

    申请日:2003-04-22

    Applicant: BASF AG

    Abstract: A process for preparing high-functionality hyperbranched polyesters which comprises reacting (a) one or more dicarboxylic acids or one or more derivatives thereof with one or more at least trifunctional alcohols or (b) one or more tricarboxylic acids or higher polycarboxylic acids, or one or more derivatives thereof with one or more diols in the presence of a solvent and optionally in the presence of an inorganic, organometallic or low molecular mass organic catalyst.

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