发明名称 |
Preparation of gypsum compositions |
摘要 |
A gypsum composition containing a sulfonate-containing comb-branched copolymer is disclosed. The sulfonate-containing comb-branched copolymer comprises recurring units of a polyether macromonomer, an acrylic monomer, and a sulfonate monomer. The sulfonate-containing comb-branched copolymer not only increases the fluidity of gypsum slurry but also has reduced retardation on the gypsum setting.
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申请公布号 |
US7070648(B1) |
申请公布日期 |
2006.07.04 |
申请号 |
US20050153966 |
申请日期 |
2005.06.16 |
申请人 |
LYONDELL CHEMICAL TECHNOLOGY, L.P. |
发明人 |
SCHWARTZ STEVEN A.;LIOTTA, JR. FRANK J.;BARSA EDWARD A. |
分类号 |
C04B24/24 |
主分类号 |
C04B24/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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