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公开(公告)号:US07311770B2
公开(公告)日:2007-12-25
申请号:US10398327
申请日:2001-09-20
IPC分类号: C04B11/00
CPC分类号: C04B24/42 , C04B28/14 , C04B40/0039 , C04B2103/65 , C04B2111/27 , C04B24/026 , C04B24/085
摘要: A hydrophobic gypsum composition is provided which contains gypsum, a granulated hydrophobing additive and a pH effecting additive in an amount sufficient to maintain the pH of the composition in the range of 8 and 12.5, in the presence of water. The granule contains an organopolysiloxane having silicon bonded hydrogen, a water soluble or water dispersible binder, and a carrier, preferably gypsum or a stearate salt, in an amount sufficient to hydrophobe the gypsum. The pH effecting additive is preferably lime but may be any appropriate additive.
摘要翻译: 提供了一种疏水性石膏组合物,其在水存在下含有足以将组合物的pH保持在8和12.5范围内的石膏,颗粒状疏水添加剂和pH影响添加剂。 颗粒含有具有硅键合氢,水溶性或水分散性粘合剂的有机聚硅氧烷,以及足以疏水石膏的量的载体,优选石膏或硬脂酸盐。 pH影响添加剂优选为石灰,但可以是任何合适的添加剂。