Claims
- 1. Granular calcium hypochlorite containing from about 0.001 to about 1.0 weight percent of finely-divided unfibrillated polyfluorinated polymer dispersed within the granules.
- 2. Granular calcium hypochlorite according to claim 1 wherein the polyfluorinated polymer is polytetrafluoroethylene.
- 3. Granular calcium hypochlorite according to claim 1 wherein the calcium hypochlorite contains from about 0.01 to about 0.5 weight percent polytetrafluoroethylene and has a principal particle size distribution between about -6 and +100 U.S. Sieve Series.
- 4. Granular calcium hypochlorite according to claim 2 wherein the calcium hypochlorite contains from about 0.01 to about 0.5 weight percent polytetrafluoroethylene.
- 5. Granular calcium hypochlorite according to claim 4 wherein the granules have a principal size distribution between about -10 and +45 U.S. Sieve Series.
- 6. A composition comprising a mixture of (a) from about 5 to about 20 parts of calcium hypochlorite powder having an average particle size of less than about 10 microns, (b) from about 95 to about 80 parts of particulate calcium hypochlorite, and (c) from about 0.001 to about 1.0 weight percent of unfibrillated polyfluorinated polymer.
- 7. The composition of claim 6 wherein the polyfluorinated polymer is polytetrafluoroethylene.
- 8. The composition of claim 6 wherein the polyfluorinated polymer is present in amounts of from about 0.01 to about 0.5 weight percent.
- 9. The composition of claim 8 wherein the polyfluorinated polymer is polytetrafluoroethylene.
- 10. Granular calcium hypochlorite prepared by compacting the composition of claim 9 and granulating the compacted material.
Parent Case Info
This is a division of application Ser. No. 07/178,180, filed Apr. 6, 1988 now U.S. Pat. No. 4,865,760 issued on Sept. 12, 1989.
US Referenced Citations (16)
Foreign Referenced Citations (2)
Number |
Date |
Country |
891537 |
Mar 1962 |
GBX |
930093 |
Jul 1963 |
GBX |
Divisions (1)
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Number |
Date |
Country |
Parent |
178180 |
Apr 1988 |
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