Method for retarding plaster setting and plaster preparation
    1.
    发明授权
    Method for retarding plaster setting and plaster preparation 有权
    延缓石膏凝固和石膏制备的方法

    公开(公告)号:US07455728B2

    公开(公告)日:2008-11-25

    申请号:US10590331

    申请日:2005-08-12

    IPC分类号: C04B28/14 C04B22/16

    摘要: A method for retarding plaster setting and plaster preparations, relies upon a composition including a. tartaric acid in an amount of at least 0.01 to 1.0 weight % (based on plaster amount); b. sodium trimetaphosphate in an amount of 0.05 to 0.5 weight %, (plaster amount basis); and optionally c. sodium polyphosphate with an average chain length of at least 4 to 50 phosphate units.

    摘要翻译: 一种用于延缓石膏凝固和石膏制剂的方法,依赖于包括a的组合物。 酒石酸的量为至少0.01〜1.0重量%(以膏药量计); b。 0.05〜0.5重量%的三偏磷酸钠(基于膏药量); 并且可选地c。 平均链长为至少4至50个磷酸酯单元的多磷酸钠。