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US 6,610,266 B2Granted
Calcium metasilicates and methods for making
OwnerMichael C. Withiam, Donald P. Conley +1inventors
InventorsMichael C. Withiam, Donald P. Conley, Edward T. Yannul
Life of this patent
Estimating the term…
Abstract
Disclosed is calcium metasilicate having an aspect ratio (average major axial diameter/average minor axial diameter) of from about 1:1 to about 2.5:1, and an oil absorption of from about 20 ml/100 g to about 220 ml/100.
Claims28
A calcium metasilicate having an aspect ratio (average major axial diameter/average minor axial diameter) of from about 1:1 to about 2.5:1, and an oil absorption of from about 20 ml/100 g to about 220 ml/100 g.
A formed pharmaceutical product comprising:
- (a) a pharmaceutically active ingredient;
- and
- (b) a calcium metasilicate excipient having an aspect ratio (average major axial diameter/average minor axial diameter) of from about 1:1 to about 2.5:1, and an oil absorption of from about 20 ml/100 g to about 220 ml/100 g.
A cosmetic product comprising:
- (a) one or more cosmetic ingredients;
- and
- (b) a dehydrated calcium metasilicate excipient having an aspect ratio (average major axial diameter/average minor axial diameter) of from about 1:1 to about 2.5:1, and an oil absorption of from about 20 ml/100 g to about 220 ml/100 g.
A formed product comprising:
- (a) a disintegrant;
- and
- (b) a dehydrated calcium metasilicate excipient having an aspect ratio (average major axial diameter/average minor axial diameter) of from about 1:1 to about 2.5:1, and an oil absorption of from about 20 ml/100 g to about 220 ml/100 g;
- wherein the formed product disintegrates in less than about 30 seconds when immersed in water at 37° C.
1 more element
Dependencies are inferred from the claim text.