SELF-EXTINGUISHING POLYURETHANES
    4.
    发明专利

    公开(公告)号:CA2033119A1

    公开(公告)日:1991-08-04

    申请号:CA2033119

    申请日:1990-12-24

    Applicant: HOECHST AG

    Inventor: EBERSPACH WERNER

    Abstract: HOE 90/H 002 Self-extinguishing polyurethanes of the disclosure: Self-extinguishing polyurethanes are obtained by stepwise polyaddition of diisocyanates or polyisocyanates with polyols with the addition of a flameproofing agent comprising a phosphorus component and a nitrogen component as synergists. While the phosphorus component used is an ammonium polyphosphate which is sparingly soluble in water and, if desired, has been microencapsulated with a melamine/formaldehyde resin, the organic nitrogen component is selected from the group comprising a) bis(triazinyl)piperazines b) hydroxyalkyl isocyanurates c) condensation products of amino-1,3,5-triazines with aldehydes.

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