Method for imparting flame resistance to wood surfaces
    2.
    发明授权
    Method for imparting flame resistance to wood surfaces 失效
    赋予木材表面阻燃性的方法

    公开(公告)号:US4741971A

    公开(公告)日:1988-05-03

    申请号:US866540

    申请日:1986-05-23

    Abstract: Methods for impregnating the pores of at least partially dried wood with a phosphorus nitride, particularly P.sub.3 N.sub.5, to provide flame resistance are described. Preferably liquid slurries of the phosphorus nitride are impregnated into the exposed pores of the wood using pressure or preferably a partial vacuum in a confined space which removes air from the pores and allows the slurry to impregnate the wood. The liquid is then removed from the wood.

    Abstract translation: 描述了用氮化物,特别是P3N5浸渍至少部分干燥的木材的孔以提供阻燃性的方法。 优选地,磷氮化物的液体浆料在限制空间中使用压力或优选部分真空浸渍到木材的暴露孔中,该密闭空间从孔中除去空气并允许浆料浸渍木材。 然后将液体从木材中取出。

    Method of improving flame resistance of epoxy resins and resulting
compositions
    5.
    发明授权
    Method of improving flame resistance of epoxy resins and resulting compositions 失效
    改善环氧树脂和所得组合物的阻燃性的方法

    公开(公告)号:US4632973A

    公开(公告)日:1986-12-30

    申请号:US789898

    申请日:1985-10-18

    Applicant: H. Nelson Beck

    Inventor: H. Nelson Beck

    CPC classification number: C07F9/65505 C08G59/145 C08G59/36

    Abstract: Epoxy resins reacted with an oxirane group containing phosphonate of the formula: ##STR1## wherein R is hydrogen or lower alkyl and R.sub.1 is lower alkyl are described. The backbone of the epoxy resin contains a functional substituent which reacts with (I) preferably a hydroxyl substituent. The cured epoxy resins reacted with the phosphonate (I) have improved flame resistance or glass temperatures.

    Abstract translation: 环氧树脂与具有下式的环氧乙烷基团的膦酸酯反应:其中R是氢或低级烷基,R 1是低级烷基。 环氧树脂的骨架含有与(I)优选羟基取代基反应的官能取代基。 与膦酸酯(I)反应的固化环氧树脂具有改善的阻燃性或玻璃温度。

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