1.
    发明专利
    未知

    公开(公告)号:ES2181738T3

    公开(公告)日:2003-03-01

    申请号:ES95116222

    申请日:1995-10-14

    Applicant: BASF AG

    Abstract: The prodn. of polyurethane (PU) foam comprises reacting (a) polyisocyanate(s); with (b) high-mol. wt. polyol(s) with at least two reactive H atoms, comprising (B1) polyoxyalkylene-polyol(s) with an OH no. of 30-500, obtd. by alkoxylating N,N'-bis(3-aminopropyl)-ethylenediamine, tripropylene-tetramine and/or tetrapropylene-pentamine with alkene oxide(s); and opt. (c) low-mol wt. chain extenders and/or crosslinkers; in the presence of (d) blowing agents. Also claimed are polyols (b1) obtd. as above.

    3.
    发明专利
    未知

    公开(公告)号:ES2185102T3

    公开(公告)日:2003-04-16

    申请号:ES98122408

    申请日:1998-11-26

    Applicant: BASF AG

    Abstract: A process for the production of beta -alkoxy-nitriles which is carried out in the presence of a basic diazabicycloalkene catalyst. Production of beta -alkoxy-nitriles which involves reaction of alpha , beta -unsaturated nitriles with mono-, di- or tri- valent alcohols in the presence of a basic diazabicycloalkene of formula (1), at (-) 20-200 degrees C. n, m = 1-6; and where the 1-4 H atoms are optionally substituted by R -R ; R -R = 1-20C alkyl, 6-20C aryl or 7-20C arylalkyl. An Independent claim is also included for a production process of a gamma -alkoxy-amine by hydrogenation of the beta -alkoxy-nitrile in the presence of a hydrogenation catalyst and the catalyst of formula (1).

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