Claims
- 1. An encapsulated oil particle comprising:a) a water soluble polymer; b) an oil; and c) a hydrophobically modified silica having a particle size greater than 100 nm; wherein the amount of hydrophobic silica is less than or equal to 10% by weight, of said oil.
- 2. A particle according to claim 1 wherein said amount of hydrophobic silica is less than or equal to 3% by weight, of said oil.
- 3. A particle according to claim 2 wherein said amount of hydrophobic silica is less than or equal to 1% by weight, of said oil.
- 4. A particle according to claim 3 wherein said amount of hydrophobic silica is less than or equal to 0.5% by weight, of said oil.
- 5. A particle according to claim 4 wherein said amount of hydrophobic silica is less than or equal to 0.1% by weight, of said oil.
- 6. A particle according to claim 1 wherein said hydrophobic silica has a particle size of less than 5 microns but greater than 100 nm.
- 7. A particle according to claim 6 wherein said hydrophobic silica has a particle size of less than 1 micron but greater than 100 nm.
- 8. A particle according to claim 1 wherein said oil is a liquid at a temperature of from 10° C. to 90° C.
- 9. A particle according to claim 1 wherein said oil is a perfume raw material.
- 10. An encapsulated oil particle comprising:a) a water soluble polymer wherein said water soluble polymer is a starch which has been modified by treatment with octenylsuccinic acid anhydride; b) an oil; and c) a hydrophobically modified silica; wherein the amount of hydrophobic silica is less than or equal to 10% by weight, of said oil.
- 11. An encapsulated oil particle comprising:a) a water soluble polymer; b) an oil admixture; and c) a compatible hydrophobic additive admixture, wherein said oil admixture and said hydrophobic additive admixture each comprise at least 10% by weight, of an ingredient which is either a hydrocarbon or which comprises a compound having a similar functional unit, said functional unit selected from the group consisting of hydroxyl, aldehyde, nitrile, ester, ketone, ether, sulfate, sulfonate, and mixtures thereof.
- 12. A particle according to claim 11 wherein said amount of hydrophobic additive admixture is less than or equal to 3% by weight, of said oil admixture.
- 13. A particle according to claim 12 wherein said amount of hydrophobic additive admixture is less than or equal to 1% by weight, of said oil admixture.
- 14. A particle according to claim 13 wherein said amount of hydrophobic additive admixture is less than or equal to 0.5% by weight, of said oil admixture.
- 15. A particle according to claim 14 wherein said amount of hydrophobic additive admixture is less than or equal to 0.1% by weight, of said oil admixture.
- 16. A particle according to claim 11 wherein said hydrophobic additive admixture has a particle size of less than 5 microns.
- 17. A particle according to claim 16 wherein said hydrophobic additive admixture has a particle size of less than 1 micron.
- 18. A particle according to claim 17 wherein said hydrophobic additive admixture has a particle size of less than 0.1 micron.
- 19. A particle according to claim 11 wherein said oil is a perfume raw material.
- 20. An encapsulated oil particle comprising:a) a water soluble polymer wherein said water soluble polymer is a starch which has been modified by treatment with octenylsuccinic acid anhydride; b) an oil admixture; and c) a compatible hydrophobic additive admixture; wherein said oil admixture and said hydrophobic additive admixture each comprise at least 10% by weight of an ingredient which is either a hydrocarbon or which comprises a compound having a similar functional unit, said functional unit selected from the group consisting of hydroxyl, aldehyde, nitrile, ester, ketone, ether, sulfate, sulfonate, and mixtures thereof.
- 21. A granular cleaning composition comprising:a) from 0.01% to 50% by weight, of an encapsulated oil particle according to claim 1; and b) from 50% to 99.99% by weight of an ingredient selected from the group consisting of surfactants, builders, bleaching agents, enzymes, soil release polymers, dye transfer inhibitors, fillers, and mixtures thereof.
- 22. An encapsulated oil particle comprising:a) a water soluble polymer; b) an oil; and c) a hydrophobically modified silica; wherein the ratio of oil to hydrophobically modified silica is greater than 100:1.
- 23. A particle according to claim 22 wherein the ratio of oil to hydrophobically modified silica is greater than 200: 1.
- 24. A particle according to claim 23 wherein the ratio of oil to hydrophobically modified silica is greater than 1000:1.
- 25. A particle according to claim 22 wherein said hydrophobic silica has a particle size of less than 5 microns.
- 26. A particle according to claim 25 wherein said hydrophobic silica has a particle size of less than 1 micron.
- 27. A particle according to claim 26 wherein said hydrophobic silica has a particle size of less than 0. 1 micron.
- 28. A particle according to claim 22 wherein said oil is a liquid at a temperature of from 10° C. to 90° C.
- 29. A particle according to claim 22 wherein said oil is a perfume raw material.
- 30. An encapsulated oil particle comprising:a) a water soluble polymer wherein said water soluble polymer is a starch which has been modified by treatment with octenylsuccinic acid anhydride; b) an oil; and c) a hydrophobically modified silica; wherein the ratio of oil to hydrophobically modified silica is greater than 100: 1.
- 31. An encapsulated oil particle comprising:a) a water soluble polymer comprising a starch that has been modified by treatment with octenylsuccinic acid anhydride; b) an oil; and. c) a hydrophobically modified silica; wherein the amount of hydrophobic silica is less than or equal to 10% by weight, of said oil.
- 32. A granular cleaning composition comprising:a) from 0.01% to 50% by weight, of an encapsulated oil particle according to claim 22; and b) from 50% to 99.99% by weight of an ingredient selected from the group consisting of surfactants, builders, bleaching agents, enzymes, soil release polymers, dye transfer inhibitors, fillers, and mixtures thereof.
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a national stage entry under 35 U.S.C. §371 of PCT/US00/19471, filed Jul. 14, 2000, which claims the benefit of U.S. Provisional Application No. 60/144,635 filed Jul. 20, 1999, (now abandoned).
PCT Information
Filing Document |
Filing Date |
Country |
Kind |
PCT/US00/19471 |
|
WO |
00 |
Publishing Document |
Publishing Date |
Country |
Kind |
WO01/05926 |
1/25/2001 |
WO |
A |
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Provisional Applications (1)
|
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|
60/144635 |
Jul 1999 |
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