发明授权
- 专利标题: Cast ceiling tile
- 专利标题(中): 铸天花板瓷砖
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申请号: US12975574申请日: 2010-12-22
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公开(公告)号: US08118928B1公开(公告)日: 2012-02-21
- 发明人: Qing Claire Yu , Bangji Cao , Gregory O. Palm
- 申请人: Qing Claire Yu , Bangji Cao , Gregory O. Palm
- 申请人地址: US IL Chicago
- 专利权人: USG Interiors, LLC
- 当前专利权人: USG Interiors, LLC
- 当前专利权人地址: US IL Chicago
- 代理机构: Pearne & Gordon LLP
- 主分类号: C04B14/46
- IPC分类号: C04B14/46 ; C04B24/38
摘要:
A cast type ceiling tile comprising a mixture containing 30 to 70% mineral wool, 10 to 40% expanded glass beads, 8 to 20% starch, 0 to 15% stucco, and 0 to 1% boric acid.