发明授权
US06409825B1 Wet gypsum accelerator and methods, composition, and product relating thereto
有权
湿石膏加速剂及其相关的方法,组合物和产品
- 专利标题: Wet gypsum accelerator and methods, composition, and product relating thereto
- 专利标题(中): 湿石膏加速剂及其相关的方法,组合物和产品
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申请号: US09721237申请日: 2000-11-22
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公开(公告)号: US06409825B1公开(公告)日: 2002-06-25
- 发明人: Qiang Yu , Srinivas Veeramasuneni
- 申请人: Qiang Yu , Srinivas Veeramasuneni
- 主分类号: C04B1100
- IPC分类号: C04B1100
摘要:
A wet gypsum accelerator comprising particles of calcium sulfate dihydrate, water, and at least one additive selected from the group consisting of (i) an organic phosphonic compound, (ii) a phosphate-containing compound, or (iii) a mixture of (i) and (ii), is disclosed. Also disclosed are a method of preparing a wet gypsum accelerator, a method of hydrating calcined gypsum to form an interlocking matrix of set gypsum, a set gypsum-containing composition, and a set gypsum-containing product.