IP Library Granted Patent US 9,717,237
Granted Patent B2
US 9,717,237 · App. 14/547,439 · Granted Aug 1, 2017

Extended release insect repellant or fragrance compositions

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Quick Facts
Patent No.
US 9,717,237
App. No.
14/547,439
Granted
Aug 1, 2017
Kind
B2
Abstract

Compositions are provided that provide release of insect repellant or fragrance over an extended period of time. The compositions comprise a hydrophilically-modified cross-linked silicone elastomer and an acrylic rheology modifier.

Claims (35)

1. An insect repellant composition that provides extended release of an insect repellant oil, comprising:

(a) a hydrophilically-modified cross-linked silicone elastomer;

(b) an acrylic rheology modifier;

(c) a polyol, said polyol comprising glyercin;

(d) an alcohol, said alcohol comprising ethanol; and

(e) an insect repellant oil,

wherein said alcohol comprises from about 20% to about 75% of the composition, wherein said composition is substantially anhydrous.

2. A composition for providing extended release of fragrance comprising:

(a) a hydrophilically-modified cross-linked silicone elastomer;

(b) an acrylic rheology modifier;

(c) a polyol;

(d) an alcohol comprising ethanol; and

(e) a fragrance oil,

wherein said alcohol comprises from about 20% to about 75% of the composition, wherein said composition is substantially anhydrous.

3. The composition according to claim 2 , wherein said hydrophilically-modified cross-linked silicone elastomer comprises poly(alkylene oxide) chains grafted to a silicone backbone.

4. The composition according to claim 2 , wherein said hydrophilically-modified cross-linked silicone elastomer comprises PEG-12 dimethicone/PPG-20 crosspolymer.

5. The composition according to claim 2 , wherein said acrylic rheology modifier comprises a copolymer of an acrylate monomer and an acrylamide monomer.

6. The composition according to claim 2 , wherein said acrylic rheology modifier comprises hydroxylethyl acrylate/sodium acryloyldimethyltaurate copolymer.

7. The composition according to claim 2 , wherein said fragrance oil comprises a blend of one or more fragrance oils.

8. The composition according to claim 2 , wherein said hydrophilically-modified cross-linked silicone elastomer is present in an amount from about 0.5% to about 5% by weight of the total composition.

9. The composition according to claim 2 , wherein said acrylic rheology modifier is present in an amount from about 0.5% to about 5% by weight of the total composition.

10. The composition according to claim 2 , wherein the weight ratio of said hydrophilically-modified cross-linked silicone elastomer and said acrylic rheology modifier is from about 2:1 to about 1:2.

11. The composition according to claim 2 , further comprising one or more actives selected from the group consisting of: retinoids, hydroxyl acids, depigmenting agents, botanicals, collagenase inhibitors, elastase inhibitors, sunscreens, anti-perspirants, deodorants, anti-bacterias, and anti-fungals.

12. The composition according to claim 2 , further comprising one or more colorants.

13. A method for providing prolonged delivery of a fragrance oil comprising applying to a surface a composition according to claim 2 .

14. The method according to claim 13 , wherein said surface is a human integument.

15. The composition according to claim 2 , wherein said alcohol comprises from about 25% to about 65% by weight of the composition.

16. A long-wearing composition for providing extended release of fragrance, said composition comprising:

(a) from about 0.5% to about 10% by weight of a hydrophilically-modified cross-linked silicone elastomer;

(b) from about 0.1% to about 25% by weight of an acrylic rheology modifier;

(c) from about 20% to about 75% by weight of a polyol;

(d) from about 20% to about 75% by weight of an alcohol; and

(e) from about 0.5% to about 25% by weight of a fragrance oil, wherein said alcohol comprises ethanol,

wherein said composition is substantially anhydrous.

17. The composition according to claim 16 , wherein said alcohol comprises from about 25% to about 65% by weight of the composition.

Assignments (2)
SECURITY INTEREST Recorded Nov 14, 2019
From: AVON PRODUCTS, INC.
To: CITIBANK, N.A., LONDON BRANCH
Reel/Frame 051032/0210 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 8, 2014
From: LULL, MICHAEL A.; MCNAMARA, WILLIAM E.; ANDERSON, GLEN T.
To: AVON PRODUCTS, INC.
Reel/Frame 034417/0896 →