Fire-retardant, intumescent composition and its use for the
flameproofing of substrates, and as a fire-extinguishing agent
comprising an ammonium salt, a water-soluble nitrogen compound as a
blowing agent and dextrin
    1.
    发明授权
    Fire-retardant, intumescent composition and its use for the flameproofing of substrates, and as a fire-extinguishing agent comprising an ammonium salt, a water-soluble nitrogen compound as a blowing agent and dextrin 失效
    阻燃剂,膨胀性组合物及其用于基材防火的用途,作为包含铵盐,作为发泡剂的水溶性氮化合物和糊精的灭火剂

    公开(公告)号:US4382884A

    公开(公告)日:1983-05-10

    申请号:US251422

    申请日:1981-04-06

    摘要: An intumescent, fire-retardant, aqueous composition which comprises (a) as a flameproofing agent, a water-soluble ammonium salt of a non-volatile inorganic acid, such as sulfamic acid, sulfuric acid or, in particular, phosphoric acid, (b) as a blowing agent, a water-soluble nitrogen compound, for example urea, which can be methylolated, or its derivatives and salts and (c) dextrin as a binder, (d) if desired, formaldehyde, and (e) if desired, further additives, for example wood preservatives, is used for the flameproof and heat-resistant treatment of very diverse substrates, preferably building timber, or for extinguishing burning substrates of all kinds. When the composition is used as a fire-extinguishing agent, it preferably additionally contains a foaming agent, and can contain a foam stabilizer.

    摘要翻译: 一种膨胀型阻燃性水性组合物,其包含(a)作为防火剂,非挥发性无机酸的水溶性铵盐,例如氨基磺酸,硫酸,特别是磷酸,(b )作为发泡剂,可以被羟甲基化的水溶性氮化合物,例如脲,或其衍生物和盐,和(c)糊精作为粘合剂,(d)如果需要,甲醛,和(e)如果需要 ,其他添加剂,例如木材防腐剂,用于非常多样化的基材,优选建筑木材或用于熄灭各种燃烧的基材的防火和耐热处理。 当组合物用作灭火剂时,优选另外含有发泡剂,并且可以含有泡沫稳定剂。