IP Library Granted Patent US 11,234,921
Granted Patent B2
US 11,234,921 · App. 16/898,830 · Granted Feb 1, 2022

Moisturizing compositions and uses thereof

Inventors: Kathy Ann Fields (San Francisco, CA); Kathryn Pregerson Rodan (Oakland, CA); George Paul Majewski (Walnut, CA); Timothy John Falla (Woodinville, WA); Dzung Q. Le (Salt Lake City, UT)
Assignee: RODAN & FIELDS, LLC
A61K8/73A61K8/64A61K8/731A61K8/732A61K8/733A61K8/735A61K8/736A61K8/737A61K9/0048A61K9/06A61K31/327A61K45/06A61K47/02A61Q19/005A61Q19/007C08B37/006C08B37/0072C08L5/08C08L89/00A61K2800/54A61K2800/594C08L5/04C08L5/06C08L2203/02C08L2205/025C08L2205/03C08L2205/035C08L2205/04
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Quick Facts
Patent No.
US 11,234,921
App. No.
16/898,830
Granted
Feb 1, 2022
Kind
B2
Abstract

Embodiments herein are directed to moisturizing compositions comprising interpenetrating polymer networks, methods of making moisturizing compositions and methods of using moisturizing compositions.

Claims (31)

1. A topical moisturizing composition comprising about 10% to about 38.5% of an interpenetrating polymer network (IPN) composition and about 61.5% to about 90% of two or more components selected from the group consisting of an active agent, a keratinocyte differentiation promoting agent, a preservative system, an additional humectant, and combinations thereof,

wherein the IPN composition comprises:

about 0.01% w/w to about 5% w/w of crosslinked gellan gum of the IPN composition,

about 0.01% w/w to about 5% w/w of cetyl hydroxyethylcellulose of the IPN composition,

about 0.01% w/w to about 5% w/w of sodium hyaluronate of the IPN composition,

about 0.01% w/w to about 5% w/w of a mono-, or di-valent ion, and

about 25% w/w to about 80% w/w of a humectant selected from glycerin, diglycerin, or a combination thereof, of the IPN composition,

wherein the cetyl hydroxyethylcellulose and the sodium hyaluronate are interlaced; and

wherein the crosslinked gellan gum is crosslinked via ionic bonds, through the mono-, or di-valent ion, and entraps the interlaced cetyl hydroxyethylcellulose, the sodium hyaluronate, and the humectant to form the interpenetrating polymer network moisturizing topical composition.

2. The topical moisturizing composition of claim 1 , wherein the mono-, or di-valent ion is selected from the group consisting of 2-Pyrrolidone-5-Carboxylic Acid (PCA), calcium PCA, sodium PCA, zinc PCA, magnesium PCA, sea salt, inorganic salts of citric acid, inorganic salts of lactic acid, calcium ascorbate, magnesium ascorbate, calcium oxide, calcium benzoate, calcium sorbate, calcium aspartate, magnesium carbonate, magnesium chloride, magnesium nitrate, and any combination thereof.

3. The topical moisturizing composition of claim 1 , wherein the active agent is from the group consisting of a cell cycle modulator, a skin treatment, a skin protectant, an acne treatment, a wrinkle treatment, an exfoliating acid, a skin brightening agent, an anti-inflammatory agents, and combinations thereof.

4. The topical moisturizing composition of claim 3 , wherein the cell cycle modulator selected from the group consisting of phosphatidylglycerol, calcium PCA, Lysolecithin, and any combination thereof.

5. The topical moisturizing composition of claim 3 , wherein the acne treatment is selected from the group consisting of benzoyl peroxide, salicylic acid, willowbark extract, poly hydroxyacid, tannic acid, hydroxybenzoic acid, juniperic acid, tartaric acid, glycolic acid, lactic acid, citric acid, and combinations thereof.

6. The topical moisturizing composition of claim 3 , wherein the wrinkle treatment is selected from the group consisting of retinol, antioxidants, vitamin A, retinoid, tretinoin, tazarotene, and combinations thereof.

7. The topical moisturizing composition of claim 3 , wherein the anti-inflammatory agent is selected from the group consisting of ibuprofen, diclofenac, felbinac, ketoprofen, piroxicam, and combinations thereof.

8. The topical moisturizing composition of claim 3 , wherein the skin protectant is glycerin.

9. The topical moisturizing composition of claim 3 , wherein the exfoliating acid is selected from the group consisting of glycolic acid, alpha hydroxyl acid (AHA), polyhydroxyacid, and combinations thereof.

10. The topical moisturizing composition of claim 3 , wherein the skin brightening agent is selected from the group consisting of hydroquinone, hexyl resorcinol, phenylethyl resorcinol, and combinations thereof.

11. The topical moisturizing composition of claim 1 , wherein the keratinocyte differentiation promoting agent is selected from the group consisting of phosphatidylglycerol, an organic salt of glycerophosphoinositol, calcium PCA, calcium lactate, calcium citrate or other forms of soluble calcium, hydroxyapatite, cortisone, ceramides, ergocalciferol, cholecalciferol, sphingolipids, and any combination thereof.

12. The topical moisturizing composition of claim 1 , wherein the preservative system is selected from the group consisting of phenoxyethanol, capryl glycol, ethylhexylglycerin, hexylene glycol, sodium benzoate, potassium sorbate, methyl paraben, gluconolactone, lactic acid, sorbic acid, glyceryl caprylate, glyceryl undecylenate, ethanol, chlorphenesin, salicylic acid or any combination thereof.

13. The topical moisturizing composition of claim 1 , wherein the additional humectant is selected from the group consisting of glycerin, diglycerin, betaine, diols, propylene glycol, butylene glycol, pentylene glycol, propanediol, 1,2-hexanediol, D-ribose, glucose, sorbitol, dextrose, urea, 2-Pyrrolidone-5-Carboxylic Acid and related salts, sea salt, inorganic salts of citric acid, inorganic salts of lactic acid, ectoin, lactic acid, betaine, glycolic acid, lactobionic acid, and any combination thereof.

14. The topical moisturizing composition of claim 1 , further comprising a component selected from the group consisting of caprylyl methicone-cosmetic silicone, PEG-12 dimethicone/PPG-20 Crosspolymer, alcohol denatured, isododecane, polysilicone-11, Dimethylacrylamide/Acrylic Acid/Polystyrene Ethyl Methacrylate Copolymer, coco-caprylate/Caprate, decyl glucoside, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Isohexadecane, polysorbate 60, and combinations thereof.

15. The topical moisturizing composition of claim 1 , wherein the moisturizing composition is selected from the group consisting of liquid, solution, emulsion, suspension, triturate, jelly, foam, paste, ointment, shampoo, adhesive, cream, serum, milk, lotion, salve, oil, butter, gel, and balm.

16. The topical moisturizing composition of claim 1 , wherein the mono-, or di-valent ion is selected from calcium PCA, magnesium PCA, and combinations thereof.

17. The topical moisturizing composition of claim 1 , wherein the humectant is in an amount of about 30% w/w of the IPN composition.

18. The topical moisturizing composition of claim 1 , wherein the humectant is glycerin and is in an amount of about 30% w/w of the IPN composition.

19. The topical moisturizing composition of claim 1 , wherein the viscosity of the topical moisturizing composition is about 400 to about 1400 cps.

20. A method of treating dry or irritated skin comprising administering to the dry or irritated skin the topical moisturizing composition of claim 1 .

21. A method of rehydrating skin comprising administering to the skin the topical moisturizing composition of claim 1 .

22. A method of increasing skin hydration comprising administering to the skin the topical moisturizing composition of claim 1 .

23. A method of decreasing transepidermal water loss from skin comprising administering to the skin the topical moisturizing composition of claim 1 .

Assignments (14)
ASSIGNMENT OF SECURITY INTERESTS IN PATENT COLLATERAL Recorded Feb 2, 2026
From: CITIBANK, N.A., IN ITS CAPACITY AS THE WITHDRAWING AGENT
To: ANKURA TRUST COMPANY, LLC, IN ITS CAPACITY AS SUCCESSOR AGENT
Reel/Frame 074643/0097 →
MERGER Recorded Oct 9, 2024
From: RODAN & FIELDS, LLC
To: RODAN & FIELDS BEAUTY, LLC
Reel/Frame 068844/0351 →
PATENT SECURITY AGREEMENT Recorded Sep 27, 2024
From: RODAN & FIELDS BEAUTY, LLC
To: ANKURA TRUST COMPANY, LLC, AS COLLATERAL AGENT
Reel/Frame 069066/0818 →
RELEASE OF SECURITY INTEREST IN PATENT COLLATERAL RECORDED ON APRIL 28, 2023, AT REEL/FRAME 063480/0786 Recorded Sep 27, 2024
From: ANKURA TRUST COMPANY, LLC, AS COLLATERAL AGENT
To: RODAN & FIELDS, LLC
Reel/Frame 069066/0803 →
PATENT SECURITY AGREEMENT Recorded Sep 27, 2024
From: RODAN & FIELDS BEAUTY, LLC
To: ANKURA TRUST COMPANY, LLC, AS COLLATERAL AGENT
Reel/Frame 069066/0810 →
SECURITY INTEREST Recorded May 2, 2023
From: RODAN & FIELDS, LLC
To: ANKURA TRUST COMPANY, LLC
Reel/Frame 063501/0804 →
SECURITY INTEREST Recorded May 2, 2023
From: RODAN & FIELDS, LLC
To: CITIBANK, N.A.
Reel/Frame 063501/0785 →
SECURITY INTEREST Recorded Apr 28, 2023
From: RODAN & FIELDS, LLC
To: ANKURA TRUST COMPANY, LLC
Reel/Frame 063480/0786 →
SECURITY INTEREST Recorded Apr 28, 2023
From: RODAN & FIELDS, LLC
To: ANKURA TRUST COMPANY, LLC
Reel/Frame 063480/0179 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 22, 2020
From: RODAN, KATHRYN PREGERSON
To: RODAN & FIELDS, LLC
Reel/Frame 053003/0585 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 22, 2020
From: MAJEWSKI, GEORGE PAUL
To: RODAN & FIELDS, LLC
Reel/Frame 053003/0745 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 22, 2020
From: FALLA, TIMOTHY JOHN
To: RODAN & FIELDS, LLC
Reel/Frame 053003/0863 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 22, 2020
From: LE, DZUNG Q.
To: RODAN & FIELDS, LLC
Reel/Frame 053003/0927 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 22, 2020
From: FIELDS, KATHY ANN
To: RODAN & FIELDS, LLC
Reel/Frame 053003/0362 →
Continuity (4)
Continuation 15430578 · Feb 13, 2017
Provisional Application 62394540 · Sep 14, 2016
Provisional Application 62294706 · Feb 12, 2016
Related Publication 20200375870A1 · Dec 3, 2020