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    Preparation of melamine flame-proofed flexible polyurethane foams
    26.
    发明专利
    Preparation of melamine flame-proofed flexible polyurethane foams 未知

    公开(公告)号：GB2369825A

    公开(公告)日：2002-06-12

    申请号：GB0122415

    申请日：2001-09-17

    Applicant: BASF AG

    Inventor： FALKE PETER ,  HENDREICH REGINA ,  JACKSON GARY ,  SCHROEDER HEINZ-JUERGEN ,  SCHUSTER MARITA

    IPC: B60N2/70 ,  C08G18/10 ,  C08G18/38 ,  C08G18/48 ,  C08K5/3492

    Abstract: Flameproofed flexible polyurethane foams are prepared by reacting organic and/or modified organic polyisocyanates (a) with a polyetherol mixture (b) and, if required, further compounds (c) having hydrogen atoms reactive toward isocyanates, in the presence of water and/or other blowing agents (d), catalysts (e) stabilizers (f), flameproofing agents (g) and, if required, further assistants and additives (h), by a process in which the polyetherol mixture (b) comprises b1) at least one polyetherol which is at least difunctional and based on propylene oxide and/or butylene oxide and ethylene oxide, the ethylene oxide content being less than 25% by weight, based on the total amount of alkylene oxide used, has an OH number of from 20 to 80 mg KOH/g and contains more than 70% of primary OH groups and b2) at least one polyetherol which is based on propylene oxide and/or butylene oxide and ethylene oxide, has an OH number of more than 30 mg KOH/g and contains less than 70% of primary OH groups, and melamine, if desired as a mixture with further flameproofing agents, is used as flameproofing agent (g). The flameproofed flexible polyurethane foams prepared by this process can be used as upholstery for furniture and vehicle seats.

    27.
    发明专利
    未知

    公开(公告)号：DE59705996D1

    公开(公告)日：2002-02-21

    申请号：DE59705996

    申请日：1997-10-09

    Applicant: BASF AG

    Inventor： FALKE DR ,  HENDREICH REGINA ,  REICHELT MICHAEL

    IPC: C08G18/08 ,  C08G18/10 ,  C08G18/38 ,  C08G18/66 ,  C08J3/20 ,  C08K5/3492 ,  C08L75/08

    Abstract: A process for the production of stable dispersions (I) of melamine in polyol components comprising high-mol. wt. compound(s) with at least two reactive hydrogens and optionally low-mol. wt. chain extenders/crosslinkers, blowing agents, catalysts, fire retardants and other additives etc.. In this process, melamine is used as fire retardant in combination with amine(s) (II) and unmodified and/or modified organic isocyanate(s) (III). Also claimed is a process for the production of fireproofed polyurethane (PU) foam, by reacting isocyanates as above with other components as above, using melamine dispersions (I) as fire retardant. Preferably the process comprises adding melamine as fire retardant, followed by amines (II) and then isocyanates (III). The polyol component contains 1-50 wt% melamine, preferably with a particle size of 1-100 microns. (II) comprise prim. and/or sec. aliphatic and/or cycloaliphatic amines, and (III) comprise aromatic isocyanates or prepolymers with NCO groups, each in amounts of 0.05-5 wt% based on the polyol component.

    PREPARACION DE UN COMPONENTE DE POLIOL HOMOGENEO QUE ES ESTABLE A LA SEPARACION.
    30.
    发明专利
    PREPARACION DE UN COMPONENTE DE POLIOL HOMOGENEO QUE ES ESTABLE A LA SEPARACION. 未知

    公开(公告)号：MX9801233A

    公开(公告)日：1998-08-30

    申请号：MX9801233

    申请日：1998-02-13

    Applicant: BASF AG

    Inventor： FALKE PETER ,  HENDREICH REGINA ,  FRITZ RALF ,  ROTERMUND INGE

    IPC: C08G18/66 ,  C08G18/32

    Abstract: Un proceso para preparar un componente de poliol homogéneo que es estable ak la separacion y que consiste de por lo menos un compuesto de peso molecular relativamente elevado que tiene por lo menos dos átomos de hidrogeno reactivos y, alargadores de cadena y/o reticuladores de bajo peso molecular y, si se desea, de agentes hinchadores, catalizadores y otros auxiliares, y/o aditivos, que comprende la adicion a este componente de por lo menos una amina y por lo menos un isocianato orgánico y/o orgánico modificador; la invencion proporciona asimismo el componente de poliol correspondiente que es estable a la separacion. El uso de este componente de poliol para preparar PUR, en particular PUR compacto o espumado, se describe asimismo.

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