Claims
- 1. A co-micronized bicarbonate salt composition comprising (1) at least one crystalline compound ingredient selected from the group consisting of alkali metal and ammonium bicarbonates, and (2) between about 10-50 weight percent of at least one crystalline inorganic metal oxide compound ingredient having a Mohs hardness value between about 3-7; wherein the crystalline ingredients of the composition have an average particle size in the range between about 0.01-1.0 micron which is obtained by mill co-micronization of the crystalline ingredients, and the composition is free-flowing and essentially free of agglomerated particles.
- 2. A composition in accordance with claim 1 wherein the co-micronization is by fluid energy milling.
- 3. A composition in accordance with claim 1 wherein the co-micronization is by grinding or impact milling.
- 4. A composition in accordance with claim 1 wherein the ingredients comprise sodium bicarbonate and between about 10-40 weight percent of zinc oxide.
- 5. A composition in accordance with claim 1 wherein the ingredients comprise potassium bicarbonate and between about 10-40 weight percent of zinc oxide.
Parent Case Info
This application is a division of application Ser. No. 08/090,957, filed Jul. 13, 1993 which is now U.S. Pat. No. 5,424,077.
US Referenced Citations (4)
Number |
Name |
Date |
Kind |
2069710 |
Missbach |
Feb 1937 |
|
4650126 |
Feder et al. |
Mar 1987 |
|
4851421 |
Iwasaki et al. |
Jul 1989 |
|
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Non-Patent Literature Citations (1)
Entry |
Perry's Chemical Engineers' Handbook, 6th ed., McGraw-Hill Book Co., New York, 1984, pp. 8-14. |
Divisions (1)
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Number |
Date |
Country |
Parent |
90957 |
Jul 1993 |
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