Cosmetic compounds having time-delayed active ingredient release

Patent metadata

Field	Value
Publication number	US-9517195-B2
Application number	US-201514621446-A
Country	US
Kind code	B2
Filing date	Feb 13, 2015
Priority date	Aug 17, 2012
Publication date	Dec 13, 2016
Grant date	Dec 13, 2016

Abstract

The invention relates to particles including, relative in each case to the particle weight, 30 to 90 wt. % of polyalphaolefin wax(es) and 10 to 70 wt. % of one or more cosmetic active agents, selected from fragrances, cooling active agents and mixtures of fragrances and cooling active agents, as well as to cosmetic compositions containing water and 0.01 to 10 wt. %, relative to the weight of the cosmetic composition, of one or more of the aforementioned particles.

First claim

What is claimed is:

1. A deodorant cosmetic composition, comprising:
water; and
0.01 to 10 wt. % based on the weight of the cosmetic composition of one or more particles said one or more particles comprising, relative in each case to the particle weight,
30 to 90 wt. % of polyalphaolefin wax(es) and
10 to 70 wt. % of one or more cosmetic active agents selected from the group consisting of fragrances, cooling active agents, and mixtures of fragrances and cooling active agents

wherein the one or more particles has a melting point of 23 to 40° C. as measured in accordance with ASTM D 36.

2. The deodorant cosmetic composition according to claim 1 , further comprising at least one antiperspirant active agent.

3. The deodorant cosmetic composition according to claim 1 , further comprising at least one deodorant active agent.

4. The deodorant cosmetic composition according to claim 1 , wherein the composition is an antiperspirant composition and includes at least one oil-in-water emulsifier having an HLB value of greater than 7 to 20 in a total amount from 0.5 to 5 wt. %.

5. The deodorant cosmetic composition according to claim 1 , wherein the composition is an antiperspirant composition and further includes at least one non-ionic oil-in-water emulsifier having an HLB value of 12 to 18 and is present in an amount of 0.5 to 5 wt. % based on the total weight of the composition.

6. The deodorant cosmetic composition according to claim 1 , wherein the composition is an antiperspirant composition and includes at least one non-ionic oil-in-water emulsifier having an HLB value of 12 to 18 which is selected from linear saturated and unsaturated C 12 -C 24 alkanols etherified with 7 to 40 ethylene oxide units per molecule, the non-ionic oil-in-water emulsifier present in an amount of 0.5 to 5 wt. % based on the total weight of the composition.

7. The deodorant cosmetic composition according to claim 1 , wherein the composition is an antiperspirant composition and includes 1.8 to 3 wt % of at least one non-ionic water-in-oil emulsifier having an HLB value of 3 to 6 and being selected from the group consisting of steareth-2, steareth-3, steareth-4, ceteth-2, ceteth-3, ceteth-4, myristeth-2, myristeth-3, myristeth-4, laureth-2, laureth-3, laureth-4, trideceth-2, trideceth-3 and trideceth-4 and mixtures thereof.

8. The deodorant cosmetic composition according to claim 1 , wherein the composition further comprises 0.05 wt % to 1 wt % of at least one non-ionic thickening polymer selected from the group consisting of cellulose and cellulose ethers and mixtures thereof.

9. The deodorant cosmetic composition according to claim 1 , wherein the composition further comprises 0.05 to 1 wt % of dehydroxanthan gum based on the total weight on the composition.

10. The deodorant cosmetic composition according to claim 1 , wherein, based on the total weight of the composition, the composition further comprises 0.05 to 1.0 wt % of dehydroxanthan gum and 0.05 to 1 wt. % of hydroxyethyl cellulose.

11. The deodorant cosmetic composition according to claim 1 , wherein the particle has a number average particle diameter of 500 nm to 50 μm.

12. The deodorant cosmetic composition according to claim 1 , wherein the at least one polyalphaolefin wax has a melting point of 30 to 75° C. measured in accordance with ASTM D 36.

13. The deodorant cosmetic composition according to claim 1 , wherein the at least one polyalphaolefin wax has a melting point of 40 to 55° C. measured in accordance with ASTM D 36.

14. The particle according to one of claim 1 , wherein the at least one polyalphaolefin wax(es) comprises 50 to 75 wt. % of the particle weight and the at least one cosmetic active agent comprises 25 to 50 wt. % of the particle weight.

15. The deodorant cosmetic composition according to claim 1 , wherein the particle has a melting point of 27 to 32° C. as measured in accordance with ASTM D 36.

Assignees

• Henkel Ag & Co Kgaa

Inventors

• Doring Thomas
• Schevardo Natascha

Classifications

• A61K2800/56

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

• A61Q15/00

  Anti-perspirants or body deodorants (deodorisation of air A61L9/00) · CPC title

• A61Q13/00

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

• A61K8/11

  Encapsulated compositions · CPC title

• A61K8/37 Primary

  Esters of carboxylic acids · CPC title