CEMENT-BASED FIRE DOOR CORE
    94.
    发明申请
    CEMENT-BASED FIRE DOOR CORE 有权
    基于水泥的火灾核心

    公开(公告)号:US20090151603A1

    公开(公告)日:2009-06-18

    申请号:US11955468

    申请日:2007-12-13

    Abstract: The present invention describes an improved building material composition, useful for example as a fire door core. The building material of the present invention is prepared by compressing an aqueous mixture of expanded perlite and a fast setting, cementitious composition consisting essentially of a hydraulic cement, preferably Portland cement, and a pozzolan additive selected from the group consisting of metakaolin, VCAS and mixtures thereof, and preferably also includes an organic binder and a fibrous reinforcement.

    Abstract translation: 本发明描述了一种改进的建筑材料组合物,例如可用作防火门芯。 本发明的建筑材料通过压缩膨胀珍珠岩的水性混合物和基本上由水硬性水泥,优选波特兰水泥组成的水泥组合物和选自偏高岭土,VCAS和混合物的火山灰添加剂的水泥混合物来制备 并且优选还包括有机粘合剂和纤维增强物。

    NON-CEMENT FIRE DOOR CORE
    95.
    发明申请
    NON-CEMENT FIRE DOOR CORE 有权
    非水泥火门

    公开(公告)号:US20090151602A1

    公开(公告)日:2009-06-18

    申请号:US11955461

    申请日:2007-12-13

    Abstract: The present invention describes a fire resistant building material composition, useful for example as a fire door core and to a method of making this composition. The building material of the present invention is prepared from an aqueous mixture of predominately expanded perlite, a small amount of a binder component consisting essentially of calcined gypsum and an organic binder, and optionally a fibrous reinforcement.

    Abstract translation: 本发明描述了一种有用的防火建筑材料组合物,例如作为防火门芯,以及制备该组合物的方法。 本发明的建筑材料由主要膨胀的珍珠岩的水性混合物,基本上由煅烧石膏和有机粘合剂组成的粘合剂组分和任选的纤维增强剂制成。

    Low dust gypsum wallboard
    99.
    发明申请
    Low dust gypsum wallboard 有权
    低尘石膏墙板

    公开(公告)号:US20070048490A1

    公开(公告)日:2007-03-01

    申请号:US11592481

    申请日:2006-11-02

    Abstract: This invention provides low dust low density gypsum wallboard products having high total core void volumes, corresponding to low densities in the range of about 10 to 30 pcf. The wallboards have a set gypsum core formed between two substantially parallel cover sheets, the set gypsum core preferably having a total void volume from about 80% to about 92%, and made from a slurry including stucco, pregelatinized starch, and a naphthalenesulfonate dispersant. The combination of the pregelatinized starch and the naphthalenesulfonate dispersant also provides a glue-like effect in binding the set gypsum crystals together. The wallboard formulation, along with small air bubble voids (and water voids) provides dust control during cutting, sawing, routing, snapping, nailing or screwing down, or drilling of the gypsum-containing products. This invention also provides a method of making the low dust low density gypsum products including the introduction of soap foam in an amount sufficient to form a total void volume, including air voids, preferably from about 80% to about 92% in the set gypsum core, corresponding to a set gypsum core density from about 10 pcf to about 30 pcf. The wallboards produced by the method generate significantly less dust during working.

    Abstract translation: 本发明提供了具有高的总核心空隙体积的低灰尘低密度石膏墙板产品,对应于在约10至30pff范围内的低密度。 墙板具有形成在两个基本上平行的覆盖片之间的一组石膏芯,该组石膏芯优选具有约80%至约92%的总空隙体积,并且由包含灰泥,预胶化淀粉和萘磺酸盐分散剂的浆料制成。 预胶化淀粉和萘磺酸盐分散剂的组合也提供了将凝固的石膏晶体结合在一起的胶状样效果。 墙板配方以及小的气泡空隙(和水空隙)在切割,锯切,布线,咬合,打钉或拧紧或钻石的石膏产品中提供灰尘控制。 本发明还提供了一种制造低灰尘低密度石膏产品的方法,包括引入肥皂泡沫,其量足以形成总空隙体积,包括空气孔隙,优选约80%至约92%的固体石膏芯 ,对应于约10 pcf至约30 pcf的凝固石膏芯密度。 该方法生产的墙板在加工过程中产生的灰尘少得多。

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