Hybrid fragrance encapsulate formulation and method for using the same

Patent metadata

Field	Value
Publication number	US-11458105-B2
Application number	US-201314057127-A
Country	US
Kind code	B2
Filing date	Oct 18, 2013
Priority date	Dec 4, 2008
Publication date	Oct 4, 2022
Grant date	Oct 4, 2022

Abstract

A hybrid encapsulate formulation obtained by mixing a starch/fragrance emulsion with a core-shell capsule suspension is provided as is a method of using the formulation in a personal care product, a beauty care product, a fabric care product, a home care product, a personal hygiene product, an oral care product and a method for releasing an encapsulated fragrance by moisture, shear, or a combination thereof.

First claim

What is claimed is:

1. A hybrid encapsulate formulation consisting of 41% to 50% starch, 2% to 3.5% hydrocolloid, 10% to 30% sol-gel capsules, and 25% to 38% of the first fragrance, based on the dry weight of the hybrid encapsulate formulation, wherein the dry weight totals 100%; and wherein the hybrid encapsulate formulation is obtained by a method consisting essentially of (a) preparing an aqueous starch solution; (b) preparing an oil phase containing a first fragrance; (c) emulsifying the oil phase with the aqueous starch solution to obtain an emulsion; (d) mixing the emulsion with a core-shell capsule suspension to obtain a mixture, wherein the core-shell capsule suspension consists essentially of (i) prepared sol-gel capsules that encapsulate a second fragrance, and (ii) a hydrocolloid selected from the group consisting of polyvinylpyrrolidone, polyvinyl alcohol, and a combination thereof; and (e) spray drying the mixture to obtain a hybrid encapsulate formulation.

2. The hybrid encapsulate formulation of claim 1 , wherein the second fragrance in the emulsion and the first fragrance in the sol-gel capsule are the same.

3. The hybrid encapsulate formulation of claim 1 , wherein the second fragrance in the emulsion and the first fragrance in the sol-gel capsule are different.

4. A personal care product comprising the hybrid encapsulate formulation of claim 1 .

5. The personal care product of claim 4 , wherein said product is an antiperspirant or deodorant.

6. The personal care product of claim 4 , wherein said product is a shampoo, hair conditioner, hair rinse, hair refresher, body wash or soap.

7. A beauty care product comprising the hybrid encapsulate formulation of claim 1 .

8. The beauty care product of claim 7 , wherein said product is a fine fragrance or Eau De Toilette product.

9. A fabric care product comprising the hybrid encapsulate formulation of claim 1 .

10. The fabric care product of claim 9 , wherein said product is a rinse conditioner, liquid detergent or powder detergent.

11. A home care product comprising the hybrid encapsulate formulation of claim 1 .

12. The home care product of claim 11 , wherein said product is an all-purpose cleaner or fabric refresher.

13. A personal hygiene product comprising the hybrid encapsulate formulation of claim 1 .

14. The personal hygiene product of claim 13 , wherein the product is a hand sanitizer.

15. An oral care product comprising the hybrid encapsulate formulation of claim 1 .

16. The oral care product of claim 15 , wherein the product is a tooth powder.

17. The hybrid encapsulate formulation of claim 1 , wherein the hydrocolloid is polyvinylpyrrolidone.

18. The hybrid encapsulate formulation of claim 1 , wherein the spray drying step is performed at a spray drying inlet temperature of 150 to 240° C.

Assignees

• Int Flavors & Fragrances Inc

Inventors

• Lei Yabin
• Imperiale Michael V
• Popplewell Lewis M
• Pringgosusanto Franklin
• Gencarelli Ralph

Classifications

• A61K8/11 Primary

  Encapsulated compositions · CPC title

• B01J13/18

  In situ polymerisation with all reactants being present in the same phase · CPC title

• A61K2800/56

  Compounds, absorbed onto or entrapped into a solid carrier, e.g. encapsulated perfumes, inclusion compounds, sustained release forms · CPC title

• A61Q13/00

  Formulations or additives for perfume preparations (essential oils or perfumes per se C11B9/00) · CPC title

• A61Q19/10

  Washing or bathing preparations · CPC title