发明申请
- 专利标题: Foamed slurry and building panel made therefrom
- 专利标题(中): 发泡浆料和由其制成的建筑面板
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申请号: US11893759申请日: 2007-08-17
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公开(公告)号: US20080000392A1公开(公告)日: 2008-01-03
- 发明人: David Blackburn , Runhai Lu , Sharon Tracy , Qingxia Liu , James Wittbold , Bruce Petersen , Alfred Li , John Fall , Michael Shake , Chris Lee
- 申请人: David Blackburn , Runhai Lu , Sharon Tracy , Qingxia Liu , James Wittbold , Bruce Petersen , Alfred Li , John Fall , Michael Shake , Chris Lee
- 主分类号: C04B28/14
- IPC分类号: C04B28/14 ; C04B16/08 ; C04B2/00
摘要:
A gypsum slurry is described that includes water, a hydraulic component comprising at least 50% calcined gypsum by weight based on the dry weight of the hydraulic component, foam, a defoamer and a polycarboxylate dispersant. In some embodiments of the invention, the defoamer is combined with the dispersant prior to being added to the gypsum slurry. The defoamer and dispersant can be added as a physical mixture, wherein the defoamer is attached onto the dispersant polymer, or a combination thereof. In some embodiments, a gypsum building panel is made from the gypsum slurry.
公开/授权文献
- US08088218B2 Foamed slurry and building panel made therefrom 公开/授权日:2012-01-03