Fire retardant intumescent putty
    7.
    发明授权
    Fire retardant intumescent putty 失效
    阻燃膨胀油灰

    公开(公告)号:US4104073A

    公开(公告)日:1978-08-01

    申请号:US686964

    申请日:1976-05-14

    IPC分类号: C09D5/34 C09K3/10 C09D5/18

    摘要: The herein-disclosed putty is for forming air-tight and smoke-tight seals under normal and fire exposure conditions, and bubbles up when heated with flame, producing a foamed carbonaceous layer having outstanding fire-retardancy. It is a mixture having a cone penetration value of 2-40 which includes (a) liquid or semi-solid organic material having a viscosity of 50-100,000 c.st. at 210.degree. F and (b) a phosphoric acid compound substituted with one or more nitrogen-containing groups. The putty may also contain (c) polyhydric alcohols and/or carbohydrates for increased fire retardancy, (d) blowing agents for increased insulating effect, (e) grease, for high temperature flow resistance, (f) heat resistant fiber, for reinforcement, (g) microballoons, for increased insulating effect and other additives. The enclosed drawing discloses particularly desirable proportions for the components (c) and (d) in relation to the amount of component (b).

    摘要翻译: 本文公开的油灰用于在正常和火焰暴露条件下形成气密和无烟密封,并在用火焰加热时起泡,产生具有优异阻燃性的发泡碳质层。 它是锥形穿透值为2-40的混合物,其包括(a)粘度为50-100,000c.st.的液体或半固体有机材料。 在210°F和(b)被一个或多个含氮基团取代的磷酸化合物。 腻子还可以含有(c)用于增加阻燃性的多元醇和/或碳水化合物,(d)用于提高绝缘效果的发泡剂,(e)用于高温流动阻力的润滑脂,(f)耐热纤维,用于增强, (g)微球,用于增加绝缘效果和其他添加剂。 封闭的图纸公开了组分(c)和(d)相对于组分(b)的量的特别理想的比例。