54.
    发明专利
    未知

    公开(公告)号:DE10143195A1

    公开(公告)日:2003-03-20

    申请号:DE10143195

    申请日:2001-09-04

    Applicant: BASF AG

    Abstract: The invention relates to an integrated method for the production of a polyurethane, comprising at least the following steps: (1) epoxidation of propene with at least one hydroperoxide to give propylene oxide; (2) reaction of the propylene oxide from step (1), or a mixture of the propylene oxide from step (1) and at least one further alkylene oxide to give a polyether alcohol, using at least one multi-metal cyanide compound as catalyst; (3) reaction of a polyether alcohol from step (2) with at least one isocyanate and polyurethanes which may be produced by a method as above and moulded bodies comprising a said polyurethane.

    56.
    发明专利
    未知

    公开(公告)号:DE10137628A1

    公开(公告)日:2003-02-27

    申请号:DE10137628

    申请日:2001-08-03

    Applicant: BASF AG

    Abstract: Flexible polyurethane foams are prepared by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms reactive with isocyanate groups, in the presence of c) blowing agents, by a process in which at least one polyether alcohol which can be prepared by reacting alkylene oxides with H-functional initiator substances in the presence of DMC catalysts, having a content of DMC catalysts of from 0.1 to 1 000 ppm, based on the weight of the polyether alcohol, are used as compounds b) having at least two hydrogen atoms reactive with isocyanate groups.

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