The present invention relates to benefit agent containing delivery particles, compositions comprising said particles, and processes for making and using the aforementioned particles and compositions. When employed in compositions, for example, cleaning or fabric care compositions, such particles inc
The present invention relates to benefit agent containing delivery particles, compositions comprising said particles, and processes for making and using the aforementioned particles and compositions. When employed in compositions, for example, cleaning or fabric care compositions, such particles increase the efficiency of benefit agent delivery, there by allowing reduced amounts of benefit agents to be employed. In addition to allowing the amount of benefit agent to be reduced, such particles allow a broad range of benefit agents to be employed.
대표청구항▼
1. Benefit agent delivery particles comprising a core, said core comprising, based on total core weight, at least 70% of one or more benefit agents having a ClogP of greater than 0 but less than about 3.5 and a shell, said shell at least partially surrounding said core material said wherein said she
1. Benefit agent delivery particles comprising a core, said core comprising, based on total core weight, at least 70% of one or more benefit agents having a ClogP of greater than 0 but less than about 3.5 and a shell, said shell at least partially surrounding said core material said wherein said shell is a reaction product from a reaction comprising a first shell material and a second shell material; wherein said first shell material is an aliphatic polyisocyanate; wherein at least one benefit agent comprises one or more perfume oils. 2. Benefit agent delivery particles according to claim 1, said benefit agent delivery particle's having a shell material weight, based on the total benefit agent delivery particle weight, of from about 20% to 60%. 3. Benefit agent delivery particles according to claim 2, at least 75% of said benefit agent delivery particles having a fracture strength of from about 0.2 MPa to about 10 MPa. 4. Benefit agent delivery particles according to claim 1, wherein said one or more benefit agents comprise a material selected from the group consisting of a flavor oil, a vegetable oil, an esters of a vegetable oil, an aromatic solvent, a silicone oil, and mixtures thereof. 5. Benefit agent delivery particles according to claim 1, said shell comprising, a material selected from the group consisting of a polycondensation reaction product, in one aspect said polycondensation reaction product is selected from the group consisting of a polyamide, a polycarbonate, a polyester, a polyurethane, a polyurea and mixtures thereof. 6. Benefit agent delivery particles according to claim 5, wherein said polycondensation reaction product comprises a polyurethane-polyurea comprising, based on total polyurethane-polyurea weight from about 0.5% to about 3.0% pendant carboxylic moieties. 7. Benefit agent delivery particles according to claim 5, having a shell material weight, based on the total benefit agent delivery particle weight, of from about 20% to 60%. 8. Benefit agent delivery particles according to claim 7, at least 75% of said benefit agent delivery particles have a fracture strength of from about 0.2 MPa to about 10 MPa. 9. Benefit agent delivery particles according to claim 1, said benefit agent delivery particles comprising less that about 50 ppm formaldehyde and less that about 50 ppm isocyanate. 10. The benefit delivery particles of claim 1, wherein said benefit delivery particles have a fracture strength from 1.5 MPa to 6 MPa. 11. A process of making benefit agent delivery particles, the process comprising: producing benefit agent delivery particles comprising a core, said core comprising, based on total core weight, at least 70% of one or more benefit agents having a ClogP of greater than 0 but less than about 3.5 and a shell, said shell at least partially surrounding said core material; wherein said core and said shell have a solubility parameter difference of from about 1 to about 20; wherein at least one benefit agent comprises one or more perfume oils. 12. The process of claim 11, further comprising producing said benefit agent delivery particles by interfacially polymerizing said shell material. 13. The process of claim 11, wherein at least 75% of said benefit agent delivery particles have a shell material weight, based on the total benefit agent delivery particle weight, of from about 20% to 60%. 14. The process of claim 11, wherein at least 75% of said benefit agent delivery particles have a fracture strength of from about 0.2 MPa to about 10 MPa. 15. A consumer product comprising: an adjunct material; anda plurality of benefit agent delivery particles comprising a core, said core comprising, based on total core weight, at least 70% of one or more benefit agents having a ClogP of greater than 0 but less than about 3.5 and a shell, said shell at least partially surrounding said core material wherein said shell is a reaction product from a reaction comprising a first shell material and a second shell material; wherein said first shell material is an aliphatic polyisocyanate; wherein at least one benefit agent comprises one or more perfume oils. 16. The consumer product of claim 15, wherein said one or more benefit agents comprise a material selected from the group consisting of a flavor oil, a vegetable oil, an esters of a vegetable oil, an aromatic solvent, a silicone oil, and mixtures thereof. 17. The consumer product of claim 15, wherein said shell comprises a polycondensation reaction product selected from the group consisting of a polyamide, a polycarbonate, a polyester, a polyurethane, a polyurea, and mixtures thereof. 18. The consumer product of claim 17, wherein said polycondensation reaction product comprises a polyurethane-polyurea comprising, based on total polyurethane-polyurea weight, from about 0.5% to about 3.0% pendant carboxylic moieties. 19. The consumer product of claim 15, wherein said aliphatic polyisocyanate is selected from the group consisting of dicyclohexylmethane 4,4′-diisocyanate; hexamethylene 1,6-diisocyanate; isophorone diisocyanate; trimethyl-hexamethylene diisocyanate; trimer of hexamethylene1,6-diisocyanate; trimer of isophorone diisocyanate; 1,4-cyclohexane diisocyanate; urea of hexamethylene diisocyanate; trimethylene diisocyanate; propylene-1,2-diisocyanate; butylene1,2-diisocyanate; and mixtures thereof.
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