发明名称 |
METHODS FOR MANUFACTURING GYPSUM BASED COMPOSITIONS |
摘要 |
A gypsum stucco composition comprising the following components finely divided; calcium sulphate hemihydrate in calcined solid beta crystalline form; and in intimate mixture with said finely divided calcium sulphate hemihydrate and mixed therewith no later than calcination to form the hemihydrate, a sulphate salt comprising at least one of ammonium sulphate and aluminium sulphate, in an amount such that when the stucco composition is mixed with water and allowed to set, the resulting set plaster has increased compressive strength, flexural strength and/or E-modulus compared to a set plaster produced from said finely divided calcium sulphate hemihydrate containing no said sulphate salt. |
申请公布号 |
EP2146940(A1) |
申请公布日期 |
2010.01.27 |
申请号 |
EP20080737180 |
申请日期 |
2008.04.11 |
申请人 |
BPB LIMITED |
发明人 |
BIGUENET, CEDRIC;O'KEEFE, SAM;CHOTARD, THIERRY;SMITH, AGNES |
分类号 |
C04B28/14;C04B11/024 |
主分类号 |
C04B28/14 |
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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