Dental compositions of improved properties

Details Dental compositions of improved properties Dental compositions of improved properties

1980-04-28

1981-05-19

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Molds and mold coating compositions

106 35, 106111, 433213, B28B 734

Patent

active

042683106

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.

REFERENCES:
patent: 2913346 (1959-11-01), Hoffman
patent: 2941890 (1960-06-01), Zandberg et al.
patent: 3369915 (1968-02-01), Lee
patent: 4102697 (1980-07-01), Fukuba et al.
patent: 4137088 (1979-01-01), Debus et al.
patent: 4184887 (1980-01-01), Lange et al.

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