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US 5,958,454 AGranted
Effervescent bath tablet compositions
AssigneeR&D Ventures, Inc.
InventorsDavid O. Schrempf, Ward M. Smith
Life of this patent
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Abstract
The present invention relates to effervescent bath tablet compositions that contain an organic acid, sodium bicarbonate, sodium carbonate, and a salt of a fatty acid. These invention bath tablet compositions characteristically exhibit low dissolution rates in warm water.
Claims30
A bath tablet composition comprising:
- a) an organic acid;
- b) sodium bicarbonate;
- c) from about 20 to about 45 percent sodium carbonate;
- and
- d) a salt of a fatty acid;
- wherein a 0.01 percent by weight aqueous solution of said bath tablet composition has a pH that is 7.0 or above.
3 more elements
A bath tablet composition comprising:
- a) organic acid particles, wherein at least about 50 weight percent of said organic acid particles have a particle size within the range of about 149 microns to about 1190 microns;
- b) sodium bicarbonate particles;
- c) from about 20 to about 45 percent sodium carbonate particles;
- and
- d) a salt of a fatty acid;
- wherein a 0.01 percent by weight aqueous solution of said bath tablet composition has a pH that is 7.0 or above.
3 more elements
A bath tablet composition comprising:
- a) about 5 to about 50 weight percent citric acid particles, wherein at least about 50 weight percent of said citric acid particles have a particle size within the range of about 149 microns to about 1190 microns;
- b) about 5 to about 50 weight percent sodium bicarbonate;
- c) about 5 to about 50 weight percent sodium carbonate;
- and
- d) about 0.001 to about 5 weight percent magnesium stearate;
- e) about 0.01 to about 10 weight percent sodium benzoate,
- wherein all weight percents are based on total composition weight,
- wherein a 0.01 by weight aqueous solution of said bath tablet composition has a pH of 7.0 or above, and
- wherein said composition exhibits a dissolution rate of less than about 0.1 grams per second in water at 40.degree. C.
6 more elements
Dependencies are inferred from the claim text.