COMPOSITE GYPSUM BOARD AND METHODS RELATED THERETO |
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| 申请号 | US15186212 | 申请日 | 2016-06-17 | 公开(公告)号 | US20160375656A1 | 公开(公告)日 | 2016-12-29 |
| 申请人 | United States Gypsum Company; | 发明人 | Alfred C. Li; Weixin D. Song; Yijun Sang; Gregg G. Diefenbacher; Annamaria Vilinska; Brian J. Christ; Fredrick T. Jones; Bradley W. Todd; | ||||
| 摘要 | Disclosed is a composite gypsum board comprising a board core and a concentrated layer of substantial thickness (e.g., at least about 0.02 inches). The concentrated layer includes a higher weight percentage of an enhancing additive than the board core. The board core has a thickness greater than the thickness of the concentrated layer and forms the bulk of the board volume. The concentrated layer has a higher density (e.g., at least about 1.1 times greater) than the density of the board core. Also disclosed is a method of preparing a composite gypsum board. | ||||||
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| 说明书全文 | |||||||
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