- 专利标题: Modifiers for gypsum slurries and method of using them
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申请号: US11450068申请日: 2006-06-09
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公开(公告)号: US20060278134A1公开(公告)日: 2006-12-14
- 发明人: Dennis Lettkeman , Michael Shake , Qingxia Liu , John Wilson , Brian Randall , David Blackburn
- 申请人: Dennis Lettkeman , Michael Shake , Qingxia Liu , John Wilson , Brian Randall , David Blackburn
- 主分类号: C04B28/14
- IPC分类号: C04B28/14 ; C04B11/00
摘要:
An improved gypsum slurry that includes water, calcium sulfate hemihydrate, a polycarboxylate dispersant and a modifier. The modifier is chemically configured to improve the efficacy of the polycarboxylate dispersant. Preferred modifiers include cement, lime, slaked lime, soda ash, carbonates, silicates and phosphates.
公开/授权文献
- US07608347B2 Modifiers for gypsum slurries and method of using them 公开/授权日:2009-10-27