Cosmetic compositions

• US 8,524,207 B2
• Filed: 09/18/2006
• Issued: 09/03/2013
• Est. Priority Date: 09/16/2005
• Status: Expired due to Fees

• Current Assignee: Reckitt Benckiser UK Ltd (Reckitt Benckiser Group PLC)
• Original Assignee: Reckitt Benckiser UK Ltd (Reckitt Benckiser Group PLC)
• Inventors: Ellis, Paul, Heeson, Tracey, Thomas, Mark
• Primary Examiner(s): Heyer, Dennis
• Application Number:
  US11/991,676
• Publication Number:
  US 20090117068A1
• Time in Patent Office: 2,542 Days
• Field of Search: None
• US Class Current: 424/70.12
• CPC Class Codes: A61K 8/02 characterised by special physical form
• CPC Class Codes: A61K 8/0216 Solid or semisolid forms
• CPC Class Codes: A61K 8/31 Hydrocarbons
• CPC Class Codes: A61K 8/345 containing more than one hydroxy group
• CPC Class Codes: A61K 8/361 Carboxylic acids having more than seven carbon atoms in an unbroken chain; Salts or anhydrides thereof
• CPC Class Codes: A61K 8/447 containing sulfur
• CPC Class Codes: A61K 8/891 saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
• CPC Class Codes: A61K 8/893 modified by an alkoxy or aryloxy group, e.g. behenoxy dimethicone or stearoxy dimethicone
• CPC Class Codes: A61K 8/894 modified by a polyoxyalkylene group, e.g. cetyl dimethicone copolyol
• CPC Class Codes: A61K 8/922 of vegetable origin
• CPC Class Codes: A61Q 19/00 Preparations for care of the skin
• CPC Class Codes: A61Q 19/10 Washing or bathing preparations
• CPC Class Codes: A61Q 5/02 Preparations for cleaning the hair
• CPC Class Codes: A61Q 5/06 Preparations for styling the hair, e.g. by temporary shaping or colouring
• CPC Class Codes: A61Q 7/02 Preparations for inhibiting or slowing hair growth
• CPC Class Codes: A61Q 9/02 Shaving preparations
• CPC Class Codes: A61Q 9/04 Depilatories
• CPC Class Codes: B26B 21/44 Means integral with, or attached to, the razor for storing shaving-cream, styptic, or the like
• CPC Class Codes: B26B 21/443 Lubricating strips attached to the razor head

Abstract

The present invention relates to a solid cosmetic composition which includes a soap and/or a non-soap surfactant, a hair modification active and/or skin enhancing agent, and at least one silicone and/or mineral oil.

Claims

1. A solid cosmetic composition comprising:

a surfactant in an amount of about 50% to less than about 95% by weight;

a hair modification active in an amount of 0.05 to 15 weight %;

wherein the hair modification active is selected from the group consisting of glycerol monothioglycolate, N-acetyl-L-Cysteine, cysteamine, potassium thioglycolate and a Bowmann-Birk Inhibitor;

less than 5 weight % water;

a skin enhancing agent; and

a silicone present in an amount greater than 5% by weight of the solid composition, wherein the pH of the solid cosmetic composition is between 4 and 8.

2. A composition according to claim 1, wherein the skin enhancing active is selected from the group consisting of alpha hydroxyl acids (AHAs), salicylic acid, glycolic acid, lactic acid, malic acid, citric acid, tartaric acid, trichloracetic acid, a Polyhydroxyacid (PHA), and gluconalactone.

3. A composition according to claim 1, wherein the skin enhancing active is present in an amount of between 0.1 and 2.0% by weight of the composition.

4. A composition according to claim 1, wherein the skin conditioning agent is present in an amount of between 0.01 and 10% by weight of the composition.

5. A composition according to claim 1, wherein the skin conditioning agent is shea butter.

6. A composition according to claim 1, wherein the silicone is present in an amount less than 75% by weight of the composition.

7. A composition according to claim 1, wherein the silicone is selected from the group consisting of C30-45 Alkyl Methicone and C30-45 Olefin, divinyldimethicone/Dimethicone copolymer and C12-13 Pareth-23 and C12-13 Pareth, stearyl dimethicone, Lauryl PET/PPG-18/18 Methicone, divinyldimethicone/dimethicone copolymer in emulsion form, declopentasiloxane, B15-PEG, and methyl ether dimethyl silane.

8. A composition according to claim 1, further comprising a starch.

9. The solid cosmetic composition of claim 1, wherein the composition is a solid soap bar that retains its shape without support at room temperature, and wherein the solid soap bar is capable of repeated use.

10. The solid cosmetic composition of claim 1, wherein the silicone is present in an amount of at least 7% by weight of the solid composition.

11. The solid cosmetic composition of claim 1, wherein the silicone is present in an amount in the range of 6% to 11% by weight of the solid composition.

14. The solid cosmetic composition of claim 9, wherein the silicone is present in an amount of at least 7% by weight of the solid composition.

16. The solid cosmetic composition of claim 9, wherein the silicone is present in an amount in the range of 6% to 11% by weight of the solid composition.

17. A method of modifying hair including:

applying the solid composition of claim 1 onto an area of skin to be treated, and

leaving the composition on the skin for a residence time sufficient to modify the growth of hairs on the skin or to degrade at least some of the keratin in the hair on the skin.

18. A method according to claim 17, wherein the composition is removed from the skin after a predetermined period of time.

19. The method according to claim 18 wherein the solid composition is applied in the presence of water.

12. A solid soap bar capable of repeated use, the solid soap bar comprising:

surfactant in an amount of about 40% to less than about 95% by weight of the solid soap bar;

a hair modification active;

wherein the hair modification active is selected from the group consisting of glycerol monothioglycolate, N-acetyl-L-Cysteine, cysteamine, potassium thioglycolate and a Bowmann-Birk Inhibitor; and

a silicone present in an amount greater than 5% by weight of the solid soap bar to increase the hardness and durability of the solid soap bar in comparison to a composition comprising the silicone present in an amount of 5% or less by weight, wherein the silicone is selected from the group consisting of C30-45 Alkyl Methicone and C30-45 Olefin, divinyldimethicone/Dimethicone copolymer and C12-13 Pareth-23 and C12-13 Pareth, stearoyl dimethicone, Lauryl PET/PPG-18/18 Methicone, divinyldimethicone/dimethicone copolymer in emulsion form, declopentasiloxane, B 15-PEG, and methyl ether dimethyl silane, so that the solid soap bar is capable of repeated use,

wherein the pH of the solid soap bar is between 4 and 8.

13. The solid soap bar of claim 12, wherein the silicone is present in an amount of at least 7% by weight of the soap bar.

15. The solid soap bar of claim 12, wherein the silicone is present in an amount in the range of 6% to 11% by weight of the soap bar.