Inventors:
William R. Nemeth - Highland Heights OH
Assignee:
Diamond Shamrock Corporation - Dallas TX
International Classification:
B28B 734
Abstract:
A dental gypsum composition having good pourable consistency and controlled mixing and setting characteristics comprising a mixture of calcium sulfate hemihydrate (calcined gypsum), a condensation product of formaldehyde with a cyclic hydrocarbon containing sulfonic acid groups, and magnesium aluminum silicate. When dispersed in water and cured, this composition provides set products having improved hardness and strength properties.