Method to improve the performance of encapsulated fragrances

Patent metadata

Field	Value
Publication number	US-9487733-B2
Application number	US-201314423064-A
Country	US
Kind code	B2
Filing date	Aug 16, 2013
Priority date	Aug 21, 2012
Publication date	Nov 8, 2016
Grant date	Nov 8, 2016

Abstract

The invention relates to a perfume composition that includes a first perfume microcapsule encapsulating a first perfume oil that has a LogT greater than −2.5 and a cLogP greater than 2.5 and/or a volatility value of at least 30 μg/l air; and a second perfume microcapsule encapsulating a second perfume oil ingredient that has a LogT less than −2.5 and a cLogP greater than 2.5 and/or a volatility value of at least 30 μg/l air. The invention also relates to the use of such mixtures of microcapsules as a perfuming ingredient or perfuming composition for home or personal care products, as well as to the resulting home and body care compositions. Also, a method for increasing shelf life of a home- or personal-care product that contains a perfuming composition which comprises providing the perfume composition as one of the mixtures of microcapsules disclosed herein.

First claim

What is claimed is:

1. A perfume composition comprising, a mixture of microcapsules including:
(a) a first perfume microcapsule encapsulating a first perfume oil that has a LogT greater than −2.5 and a c log P greater than 2.5 and a volatility value of at least 30 μg/l air; and
(b) a second perfume microcapsule encapsulating a second perfume oil that has a LogT less than −2.5 and a cLogP greater than 2.5 and a volatility value of at least 30 μg/l air.

2. The perfume composition of claim 1 , wherein either of the first or second perfume oils, or both, comprises a mixture of perfuming compounds wherein at least 80% of the perfuming compounds each has the recited log T and cLogP and volatility values.

3. The perfume composition of claim 1 , wherein either of the first or second perfume oils, or both, comprises a single perfuming compound or a mixture of perfuming compounds wherein each compound has the recited LogT and cLogP or volatility values.

4. The perfume composition of claim 3 , wherein the perfuming compound or perfuming compounds in the first or second perfume oils, or both, each separately has a boiling point of 250° C. to 450° C.

5. A solution, comprising:
a plurality of particles suspended in the solution;
a propellant;
an intermediary solvent soluble in the propellant; and
a polymeric bonder adapted to bond the plurality of particles to a surface of an object to be imaged in three dimensions, the polymeric bonder being soluble in the intermediary solvent,
wherein the solution is for the application of a contrast pattern to the surface of the object.

6. The perfume composition of claim 3 , wherein the perfuming compound or perfuming compounds in the first or second perfume oils, or both, each separately has a volatility value of 30 to 5×10 5 μg/l air.

7. The perfume composition of claim 1 , wherein the first or second perfume microcapsule(s) or both have a core/shell structure wherein the encapsulating material forms the shell while the perfume oil form the core, wherein one of the first or second microcapsules (a) has a wall made of a different resin than the other; (b) has a wall that includes a different amount of resin or monomer than the other; or (c) contains a different amount of perfume oil than the other; or wherein one of the first and second perfume microcapsules has a core/shell structure and the other has a matrix structure.

8. The perfume composition of claim 1 , wherein the first microcapsule contains 50% by weight or less of the first perfume oil with each perfuming compound of the first perfume oil separately having a boiling point of 250° C. to 450° C., while the second microcapsule contains 50% by weight or more of the second perfume oil with each perfuming compound of the second perfume oil separately having a boiling point of 100° C. to 250° C.

9. A consumer product in the form of a home- or personal-care product that includes the perfume composition of claim 1 .

10. The consumer product of claim 9 , in the form of a detergent composition, a fabric softener, a hard surface cleaning composition, or a dishwashing composition.

11. The consumer product of claim 9 in the form of a shampoo, a hair conditioner, a shower or bath mousse, oil or gel, a deodorant, or an antiperspirant.

12. A method for increasing shelf life of a home- or personal care product containing a perfuming composition, which comprises providing the perfume composition as a mixture of microcapsules including:
(a) a first perfume microcapsule encapsulating a first perfume oil ingredient that has a LogT greater than −2.5 and a cLogP greater than 2.5 and a volatility value of at least 30 μg/l air; and
(b) a second perfume microcapsule encapsulating a second perfume oil ingredient that has a LogT less than −15 and a cLogP greater than 2.5 and a volatility value of at least 30 μg/l air.

13. The method of claim 12 , wherein the consumer product is in the form of a detergent composition, a fabric softener, a hard surface cleaning composition, or a dishwashing composition.

14. The method of claim 12 , wherein the consumer product is in the form of a shampoo, a hair conditioner, a shower or bath mousse, oil or gel, a deodorant, or an antiperspirant.

Assignees

• Firmenich & Cie

Inventors

• Budijono Stéphanie
• Ouali Lahoussine
• Normand Valery
• Billard De Saint Laumer Jean-Yves
• Zhang Suying

Classifications

• A61K8/342

  Alcohols having more than seven atoms in an unbroken chain · CPC title

• A61K8/35

  Ketones, e.g. benzophenone · CPC title

• A61Q5/02

  Preparations for cleaning the hair · CPC title

• C11D3/2093

  Esters; Carbonates · CPC title

• C11B9/0034

  the ring containing six carbon atoms · CPC title