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    • 4. 发明申请
    • COMPOSITIONS AND METHODS FOR TREATING SET GYPSUM
    • 用于处理套囊的组合物和方法
    • WO2003043955A1
    • 2003-05-30
    • PCT/US2002/037171
    • 2002-11-19
    • UNITED STATES GYPSUM COMPANY
    • YU, QiangLIU, QingxiaGRUSSING, Jeffrey, F.MOYER, Kevin, W.SPENCER, Richard
    • C04B41/67
    • C04B41/009C04B41/5015C04B41/67C04B41/4535C04B28/14
    • A composition and method for treating a set gypsum-containing material are disclosed. The composition is formed from at least water at least one trimetaphosphate salt, at least one monobasic phosphate salt, and at least one acyclic polyphosphate salt having at least three phosphate units. The method comprises applying to a set gypsum material at least two of the following inorganic phosphates: at least one monobasic phosphate salt, at least one trimetaphosphate salt, and at least one acyclic polyphosphate salt having at least three phosphate units. The method can be for inhibiting re-calcination of a set gypsum containing material, and/or for enhancing the strength, surface hardness, paintability, abrasion resistance, and/or water erosion resistance of a set gypsum-containing material. Also disclosed is a method of making a set gypsum-containing material.
    • 公开了一种用于处理集含石膏的材料的组合物和方法。 所述组合物由至少一种至少一种三偏磷酸盐,至少一种一磷酸盐和至少一种具有至少三个磷酸酯单元的无环多磷酸盐形成。 该方法包括将至少两种以下无机磷酸盐:至少一种一元磷酸盐,至少一种三偏磷酸盐和至少一种具有至少三个磷酸酯单元的无环多磷酸盐施用至一组石膏材料。 该方法可以用于抑制含石膏的材料的再煅烧,和/或用于提高含石膏材料的强度,表面硬度,可涂饰性,耐磨性和/或耐水蚀性。 还公开了制备含石膏的材料的方法。