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    Flame-retardant bis(epoxyalkyl) methylphosphonate treated substrate and process therefor
    1.
    发明授权
    Flame-retardant bis(epoxyalkyl) methylphosphonate treated substrate and process therefor 失效
    阻燃双（环氧乙基）甲基膦酰基处理基材及其工艺

    公开(公告)号：US3617193A

    公开(公告)日：1971-11-02

    申请号：US3617193D

    申请日：1967-09-12

    申请人： STEVENS & CO INC J P

    发明人： TESORO GIULIANA C ,  MOORE DONALD R ,  LEE WING-KAI

    IPC分类号： D06M13/288 ,  D06M13/28 ,  C09K3/28 ,  D06M13/38

    CPC分类号： D06M13/288 ,  Y10T442/2689

    摘要： A flammable substrate, especially a cellulosic substrate such as cotton, is rendered flame-retardant by treatment with (1) a bis(epoxyalkyl) methylphosphonate such as bis(2,3-epoxypropyl) methylphosphonate or bis(2,3-epoxypropyl) chloromethylphosphonate, and (2) an organic nitrogen-containing compound, such as urea or N2, N4, N6-tris(hydroxymethyl)melamine. A treatment which is resistant to laundering is obtained when at least the phosphonate is insolubilized by polymerization on the surface of the substrate and/or reaction with the substrate. When a halomethylphosphonate is employed, the phosphorus content of the treated substrate can be increased by further treatment with a tris(haloalkyl) phosphite and/or a trialkyl phosphite.