发明名称 |
GYPSUM-CONTAINING PRODUCT HAVING INCREASED RESISTANCE TO PERMANENT DEFORMATION AND METHOD AND COMPOSITION FOR PRODUCING IT |
摘要 |
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. |
申请公布号 |
SK42399(A3) |
申请公布日期 |
2000.02.14 |
申请号 |
SK19990000423 |
申请日期 |
1998.08.21 |
申请人 |
UNITED STATES GYPSUM COMPANY |
发明人 |
YU QIANG;SUCECH STEVEN W.;GROZA BRENT E.;MLINAC RAYMOND J.;JONES FREDERICK T.;HENKELS PAUL J. |
分类号 |
E04C2/04;B32B13/00;C04B22/16;C04B28/14;C04B41/70 |
主分类号 |
E04C2/04 |
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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