发明名称 |
GYPSUM WALLBOARD SLURRY AND METHOD FOR MAKING THE SAME |
摘要 |
A slurry for manufacturing gypsum board is disclosed. The slurry comprises calcined gypsum, water, a foaming agent, and a thickening agent. The thickening agent of the present disclosure acts to improve the cohesiveness of the slurry without adversely affecting the setting time of the slurry, the paper-to-core bond (wet and dry), or the head of the slurry by acting as a defoaming agent or coalescing agent. Examples of suitable thickening agents include cellulose ether and co-polymers containing varying degrees of polyacrylamide and acrylic acid. A gypsum board and method of forming the slurry and the gypsum board are also disclosed. The gypsum board comprises a gypsum layer formed from the slurry. |
申请公布号 |
US2016159697(A1) |
申请公布日期 |
2016.06.09 |
申请号 |
US201514944539 |
申请日期 |
2015.11.18 |
申请人 |
Stav Eli;Sethuraman Gopalakrisnan;Miatudila Ma-Ikay;Fey Karen;Bailey Joseph |
发明人 |
Stav Eli;Sethuraman Gopalakrisnan;Miatudila Ma-Ikay;Fey Karen;Bailey Joseph |
分类号 |
C04B38/10;C04B28/14 |
主分类号 |
C04B38/10 |
代理机构 |
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代理人 |
|
主权项 |
1. A gypsum board having a composition comprising:
calcined gypsum; water; an aqueous foam; and a thickening agent comprising a cellulose ether. |
地址 |
Charlotte NC US |