23.
    发明专利
    未知

    公开(公告)号:DE50107108D1

    公开(公告)日:2005-09-22

    申请号:DE50107108

    申请日:2001-10-10

    Applicant: BASF AG

    Abstract: Polyisocyanate polyaddition products containing cyclic imino esters (I) are new. An Independent claim is also included for a process for producing soft polyurethane foams, comprising reacting isocyanates with isocyanate-reactive compounds in the presence of (I), blowing agents and optionally catalysts and/or additives.

    24.
    发明专利
    未知

    公开(公告)号:DE50200425D1

    公开(公告)日:2004-06-17

    申请号:DE50200425

    申请日:2002-05-15

    Applicant: BASF AG

    Abstract: Highly elastic polyurethane foams have a DIN EN ISO 2440 and DIN EN ISO 1856 (Process A) humid aged compression set (HACS) ≤ 15% and a DIN EN ISO 1856 (Process C) wet compression set (WCS) ≤ 20%. An Independent claim is also included for highly elastic polyurethane foams obtained by reacting (A) a polyisocyanate with (B) a component comprising by weight (B1) a polymerpolyol (5-75%) and (B2) a mixture (25-95%) consisting of (i) a polyetheralcohol (70-98%) of mol. wt. 3500-6500, functionality ≤ 3 and ethylene oxide (EO) content 8-20 wt.% and (ii) a polyetheralcohol (2-30%) of mol. wt. 4000-7000, functionality 4-8 and EO content 5-15 wt.%.

    Method for producing polyurethane foams

    公开(公告)号:AU4748300A

    公开(公告)日:2000-11-17

    申请号:AU4748300

    申请日:2000-04-17

    Applicant: BASF AG

    Abstract: According to the inventive method, the polyurethane foams are produced by reacting isocyanates with compounds that react with isocyanates in the presence of foaming agents and optionally, catalysts, additives and/or auxiliary agents. The method is characterised in that the reaction is carried out in the presence of at least one of the following compounds (i): alpha , beta -unsaturated carboxylic acid, alpha , beta -unsaturated carboxylic acid derivative, alpha , beta -unsaturated ketone and or alpha , beta -unsaturated aldehyde.

    30.
    发明专利
    未知

    公开(公告)号:DE10003157B4

    公开(公告)日:2006-10-26

    申请号:DE10003157

    申请日:2000-01-26

    Applicant: BASF AG

    Abstract: Production of functionalized polyurethane foams comprises: (a) reacting an isocyanate with a compound having at least two isocyanate-reactive hydrogen atoms and a compound (I) having at least one hydroxy, amino and/or thiol group and at least one group R selected from halogen, carbonyl, ester, anhydride, epoxy, carboxy and sulfone groups; and (b) applying an R-reactive compound (II) to the resulting polyurethane foam so that (II) is covalently bound to (I) through R. An independent claim is also included for polyurethane foams produced by the above method.

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