发明名称 GYPSUM WALLBOARD, AND METHOD OF MAKING SAME
摘要 A method of preparation and use of high-strength gypsum wallboard, as well as a core composition suitable for use therein, are disclosed. The core composition includes a slurry of calcium sulfate hemihydrate (stucco), water, and a strengthening agent. The strengthening agent includes an acrylic polymer composition having a glass transition temperature of about 15 ~C or greater, and preferably has good divalent ion stability. The method provides wallboard having increased core strength, paper-to-core bonding, and strength-to-weight ratio.
申请公布号 CA2276032(A1) 申请公布日期 1998.07.16
申请号 CA19972276032 申请日期 1997.12.19
申请人 NATIONAL GYPSUM COMPANY 发明人 KINGSTON, LARRY W.;BURKE, W. ROY
分类号 D06N7/02;C04B24/26;C04B28/14;C04B111/40;(IPC1-7):C04B28/14 主分类号 D06N7/02
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