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    • 2. 发明授权
    • Inorganic foam body and process for producing same
    • 无机泡沫体及其制造方法
    • US5298068A
    • 1994-03-29
    • US911390
    • 1992-07-13
    • Herbert Giesemann
    • Herbert Giesemann
    • C04B28/06C04B28/26C04B38/00C04B38/02C04B41/68
    • C04B28/006C04B28/26C04B2111/00612Y02P40/165
    • The inorganic foam body consists of an at least partially open-cell foam formed by thermally foaming and hardening a mixture comprising an alkali water glass and a filler from the group of aluminum oxide, silicon dioxide, aluminous cement, crushed rocks, graphite or mixtures thereof. It is produced by heating a mixture comprising an alkali water glass and a filler from the group of aluminum oxide, silicon dioxide, aluminous cement, crushed rocks, graphite with a blowing agent, and preferably azodicarbonamide, at temperatures of at least 180.degree. C., and preferably of from 200.degree. C. to 300.degree. C. The foam body has a bulk density within the range of from 50 to 500 kg/m.sup.3, and preferably of from 50 to 400 kg/m.sup.3.
    • 无机泡沫体由至少部分开孔泡沫体组成,其通过热氧化和硬化包含碱金属水玻璃和来自氧化铝,二氧化硅,铝土水泥,粉碎岩石,石墨或其混合物的填料的混合物而形成 。 通过在至少180℃的温度下,将来自氧化铝,二氧化硅,高铝水泥,粉碎岩石,石墨与发泡剂,优选偶氮二甲酰胺的组中的碱金属水玻璃和填料混合而成。 ,优选为200摄氏度至300摄氏度。泡沫体的体积密度为50-500kg / m 3,优选为50-400kg / m 3。