发明名称 |
SILOXANE POLYMERIZATION IN WALLBOARD |
摘要 |
Polymerization of siloxane is improved using a gypsum-based slurry that includes stucco, Class C fly ash, magnesium oxide and an emulsion of siloxane and water. This slurry is used in a method of making water-resistant gypsum articles that includes making an emulsion of siloxane and water, then combining the slurry with a dry mixture of stucco, magnesium oxide and Class C fly ash. The slurry is then shaped as desired and the stucco is allowed to set and the siloxane polymerizes. The resulting product is useful for making a water-resistant gypsum panel having a core that includes interwoven matrices of calcium sulfate dihydrate crystals and a silicone resin, where the interwoven matrices have dispersed throughout them a catalyst comprising magnesium oxide and components from a Class C fly ash. |
申请公布号 |
EP1910243(A2) |
申请公布日期 |
2008.04.16 |
申请号 |
EP20060772196 |
申请日期 |
2006.06.05 |
申请人 |
UNITED STATES GYPSUM COMPANY |
发明人 |
WANG, XUMING;LIU, QINGXIA;REED, PAUL;YU, QIANG |
分类号 |
C04B11/02;C04B24/00;C04B24/42;C04B28/00;C04B28/14 |
主分类号 |
C04B11/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|