发明申请
- 专利标题: Gypsum Wallboard and Method of Making Same
- 专利标题(中): 石膏墙板及其制作方法
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申请号: US13207885申请日: 2011-08-11
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公开(公告)号: US20110293916A1公开(公告)日: 2011-12-01
- 发明人: William C. Martin , Eli Stav , Matthew J. Plante , Maryn L. Heermann
- 申请人: William C. Martin , Eli Stav , Matthew J. Plante , Maryn L. Heermann
- 申请人地址: US NC Charlotte
- 专利权人: National Gypsum Properties, LLC
- 当前专利权人: National Gypsum Properties, LLC
- 当前专利权人地址: US NC Charlotte
- 主分类号: B32B3/26
- IPC分类号: B32B3/26 ; B32B5/20
摘要:
A coalescing additive is used in the manufacturing process for gypsum wallboard. Such an additive increases the surface area and density of the slurry at the paper to core interface by coalescing the foam cells away from the paper core interface. This permits a stronger paper to core bond to form and increases the compressive strength of the gypsum wallboard as compared to standard wallboards made from slurries with reduced water levels.
公开/授权文献
- US09523198B2 Gypsum wallboard and method of making same 公开/授权日:2016-12-20