发明授权
US06740395B2 Substrate smoothed by coating with gypsum-containing composition and method of making
有权
通过用含石膏的组合物和制备方法进行涂布来平滑基材
- 专利标题： Substrate smoothed by coating with gypsum-containing composition and method of making
- 专利标题（中）： 通过用含石膏的组合物和制备方法进行涂布来平滑基材
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申请号： US10037001申请日： 2001-12-21
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公开(公告)号： US06740395B2公开(公告)日： 2004-05-25
- 发明人: John D. Halm , Aida L. Carbo , Michael R. Lynn , Richard B. Stevens , Charles J. Miller , Peter M. Attard , Therese A. Fults
- 申请人： John D. Halm , Aida L. Carbo , Michael R. Lynn , Richard B. Stevens , Charles J. Miller , Peter M. Attard , Therese A. Fults
- 主分类号： B32B2110
- IPC分类号： B32B2110
摘要：
A rough-surfaced substrate, such as a fiberboard, is provided with a smoother surface by applying a coating comprising calcium sulfate hemihydrate which has been prevented from hydrating to gypsum by set preventer, and which sets when brought into contact with a set initiator, e.g. aluminum sulfate, preferably present on the surface of the substrate.