发明授权
- 专利标题： Gypsum products utilizing a two-repeating unit dispersant and a method for making them
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申请号： US12566388申请日： 2009-09-24
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公开(公告)号： US07776461B2公开(公告)日： 2010-08-17
- 发明人: David R. Blackburn , Michael P. Shake , Qingxia Liu
- 申请人： David R. Blackburn , Michael P. Shake , Qingxia Liu
- 申请人地址： US IL Chicago
- 专利权人： United States Gypsum Company
- 当前专利权人： United States Gypsum Company
- 当前专利权人地址： US IL Chicago
- 代理机构： Greer, Burns & Crain, Ltd.
- 代理商 David F. Janci, Esq.; Pradip Sahu, Esq.
- 主分类号： B32B13/00
- IPC分类号： B32B13/00
摘要：
A gypsum slurry includes water, a hydraulic component including stucco and a polycarboxylate dispersant. The dispersant has two repeating units wherein the first repeating unit is an olefinic unsaturated mono-carboxylic acid repeating unit or an ester or salt, and the second repeating unit is a vinyl or allyl group bound to a polyether by an ether linkage. The slurry can be made into a gypsum panel.