Modified phosphazene fire retardants
    1.
    发明授权
    Modified phosphazene fire retardants 失效
    改性磷腈阻燃剂

    公开(公告)号:US3891449A

    公开(公告)日:1975-06-24

    申请号:US33814573

    申请日:1973-03-05

    Applicant: ETHYL CORP

    CPC classification number: C08L85/02 C08G79/025 C08L1/06 D01F2/10 C08L2666/02

    Abstract: Modified phosphazene fire retardants are prepared by reacting an organophosphazene with either a phosphonitrilic halide or a partially substituted organophosphazene. Similar materials are made by thermal treatment of the partially substituted materials. The reactant materials contain less than 38 weight per cent cyclics and are substantially composed of linear materials such that the number average molecular weight is from about 900 to about 400,000. The products are useful as fire retardants for cellulosics.

    Abstract translation: 通过使有机膦腈与膦酰氯或部分取代的有机膦腈反应制备改性磷腈阻燃剂。 类似的材料是通过热处理部分取代的材料制成的。 反应物料含有小于38重量%的循环,并且基本上由线性材料组成,使得数均分子量为约900至约400,000。 该产品可用作纤维素阻燃剂。

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