发明名称 |
Product containing plaster exhibiting increased resistance to permanent deformation, composition thereof and production process |
摘要 |
<p>The invention provides a set gypsum-containing product having increased resistance to permanent deformation and a method for preparing it comprising forming a mixture of a calcium sulfate material, water, and an appropriate amount of one or more enhancing materials chosen from condensed phosphoric acids, each of which comprises 2 or more phosphoric acid units; and salts or ions of condensed phosphates, each of which comprises 2 or more phosphate units. The mixture is then maintained under conditions sufficient for the calcium sulfate material to form a set gypsum material.</p> |
申请公布号 |
CZ20010367(A3) |
申请公布日期 |
2002.03.13 |
申请号 |
CZ20010000367 |
申请日期 |
1999.02.18 |
申请人 |
UNITED STATES GYPSUM COMPANY |
发明人 |
YU QIANG;SUCECH STEVEN W.;GROZA BRENT E.;MLINAC RAYMOND J.;JONES FREDERICK T.;BOEHNERT FREDERICK M. |
分类号 |
B28B11/00;C04B22/16;C04B28/14;C04B41/52;C04B41/70;C04B111/50;E04C2/04;(IPC1-7):C04B28/14 |
主分类号 |
B28B11/00 |
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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