IP Library Granted Patent US 9,592,184
Granted Patent B2
US 9,592,184 · App. 14/702,615 · Granted Mar 14, 2017

Composition containing a cellulose derived capsule with a sunscreen

Inventor: Laura E. Cohen (Huntington Beach, CA)
Assignee: CoLabs International Corporation
A61K8/37A61K8/11A61K8/35A61Q17/04A61Q19/10A61K2800/60
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Quick Facts
Patent No.
US 9,592,184
App. No.
14/702,615
Granted
Mar 14, 2017
Kind
B2
Abstract

A sunscreen composition comprised of one or more sunscreen active agents encapsulated in a cellulose derived capsule wherein the composition can contain one or more additional agents. A sunscreen composition can be mixed with a bodywash, shampoo, conditioner, lotion, gel, soap, cream, hand sanitizer, spray or mousse and can be used by an individual during their normal hygiene processes, such as during a shower or bath or while applying a body product to their skin or hair.

Claims (30)

1. A soap composition comprising a sunscreen composition, the sunscreen composition comprising:

a. polyquaternium; and

b. flexible cellulose derived capsules comprising an inorganic sunscreen agent;

wherein the flexible cellulose derived capsules consists essentially of hydroxypropylcellulose, hydroxypropylmethylcellulose, ethylcellulose, carboxymethylcellulose or any derivative of hydroxypropylcellulose, hydroxypropylmethylcellulose, ethylcellulose or carboxymethylcellulose;

wherein the flexible cellulose derived capsules have a mean diameter of about 300 nm to about 700 nm; and

wherein the soap composition has an SPF of at least about 6.

2. The composition of claim 1 , wherein the polyquaternium is polyquaternium-1, polyquaternium-2, polyquaternium-4, polyquaternium-5, polyquaternium-6, polyquaternium-7, polyquaternium-8, polyquaternium-9, polyquaternium-10, polyquaternium-11, polyquaternium-12, polyquaternium-13, polyquaternium-14, polyquaternium-15, polyquaternium-22, polyquaternium-37, polyquaternium-44, or polyquaternium-64, or any combination thereof.

3. The composition of claim 1 , wherein the amount of the polyquaternium is about 0.1% to about 20% of the total weight of the composition.

4. The composition of claim 3 , wherein the amount of the polyquaternium is about 0.1% to about 10% of the total weight of the composition.

5. The composition of claim 3 , wherein the amount of the polyquaternium is about 0.03% to about 7% of the total weight of the composition.

6. The composition of claim 3 , wherein the amount of the polyquaternium is 0.5% to about 5% of the total weight of the composition.

7. The composition of claim 1 , wherein the inorganic sunscreen agent is a titanium dioxide, zinc oxide, iron oxide or a metal alkoxide.

8. The composition of claim 1 , wherein the amount of the inorganic sunscreen agent is 25% or less.

9. The composition of claim 1 , further comprising flexible cellulose derived capsules comprising a UVA absorbing sunscreen agent, flexible cellulose derived capsules comprising a UVB absorbing sunscreen agent, or flexible cellulose derived capsules comprising a UVA absorbing sunscreen agent and a UVB absorbing sunscreen agent.

10. The composition of claim 9 , wherein the amount of the UVA absorbing sunscreen agent is from about 2% (w/v) to about 20% (w/v) of the total weight of the composition.

11. The composition of claim 9 , wherein the UVA absorbing sunscreen agent is avobenzone.

12. The composition of claim 9 , wherein the amount of the UVB absorbing sunscreen agent is from about 2% (w/v) to about 20% (w/v) of the total weight of the composition.

13. The composition of claim 9 , wherein the UVB absorbing sunscreen agent is octinoxate.

14. The composition of claim 1 , further comprising a film former.

15. The composition of claim 14 , wherein the film former is encapsulated in a cellulose derived capsule or not encapsulated in a cellulose derived capsule.

16. The composition of claim 14 , wherein the film former comprises a dimethicone, an emollient ester, a lanolin derivative, a superfatted oil, an acrylic co-polymer, a polythylene and/or a petrolatum.

17. The composition of claim 14 , wherein the amount of film former is about 1 to about 10% of the total weight of the composition.

18. The composition of claim 1 , further comprising cellulose derived capsule comprising a silicone.

19. The composition of claim 18 , wherein the amount of the silicone is about 0.2% (w/v) of the total weight of the composition.

20. The composition of claim 18 , wherein the amount of the silicone is about 0.3% (w/v) of the total weight of the composition.

21. The composition of claim 18 , wherein the amount of the silicone is about 0.4% (w/v) of the total weight of the composition.

22. The composition of claim 18 , wherein the silicone is dimethyl polysiloxane.

23. The composition of claim 1 , wherein each of the cellulose derived capsule has a mean diameter of about 400 nm to about 600 nm.

24. The composition of claim 1 , which is a cold-processed soap, a hot processed soap, a rebatched soap, a melt and pour soap, or a Castile soap.

25. The composition of claim 1 , which is a solid soap or a liquid soap.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 1, 2016
From: COHEN, LAURA E.
To: COLABS INTERNATIONAL CORPORATION
Reel/Frame 038166/0799 →
Continuity (4)
Continuation 14072926 · Nov 6, 2013
Provisional Application 61769758 · Feb 27, 2013
Provisional Application 61722870 · Nov 6, 2012
Related Publication 20150231046A1 · Aug 20, 2015