IP Library Granted Patent US 8,476,318
Granted Patent B2
US 8,476,318 · App. 12/596,690 · Granted Jul 2, 2013

Polyethylene glycol esters and cosmetic and/or dermatological preparations

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Quick Facts
Patent No.
US 8,476,318
App. No.
12/596,690
Granted
Jul 2, 2013
Kind
B2
Abstract

The invention relates to polyethylene glycol esters and blends of the polyethylene glycol esters with polyethylene glycol ethers, together with in particular cosmetic and/or dermatological preparations containing them, methods for the production thereof and use thereof.

Claims (30)

1. A cosmetic and/or dermatological preparation comprising one or more polyethylene glycol esters of the formula 1

wherein m=5, R 1 =H or

R 2 =

further comprising one or more polyethylene glycol ethers of the formula 2,

wherein n=7 to 30, and R 3 and R 4 in each case, mutually independently, mean H or a saturated or unsaturated, branched or unbranched alkyl group, in which the number of carbon atoms amounts to 10-15.

2. The preparation as claimed in claim 1 , containing the polyethylene glycol ester(s) of claim 1 in a sufficient concentration

a) to condition the skin, and/or

b) to reduce, delay or prevent drying out of the skin, and/or

c) to regenerate the skin barrier function, and/or

d) to moisturize the skin.

3. A method

a) to condition the skin, and/or

b) to reduce, delay or prevent drying out of the skin, and/or

c) to regenerate the skin barrier function, and/or

d) to moisturize the skin,

comprising application of a cosmetic and/or dermatological preparation as claimed in claim 1 .

4. The preparation as claimed in claim 1 , characterized in that

n amounts, in one or more polyethylene glycol ethers of the formula 2, to 9 and

R 3 and/or R 4 mean a saturated or unsaturated, branched or unbranched alkyl group, in which the number of carbon atoms amounts to 13.

5. The preparation as claimed in claim 1 , characterized in that the ratio of the total mass of all polyethylene glycol esters of claim 1 , in which the residue R 1 is H, to the total mass of all polyethylene glycol esters of claim 1 , in which the residue R 1 is not H, is 4:1 to 1:3.

6. The preparation as claimed in claim 1 , wherein the preparation is a water-containing preparation, and containing the polyethylene glycol ether of the formula 2 in a sufficient concentration to increase the solubility of one or more polyethylene glycol esters of claim 1 in the preparation.

7. The preparation as claimed in claim 1 , further characterized in that the preparation is a water-containing preparation with a surfactant content of 2-30 wt. % relative to the total preparation.

8. The preparation as claimed in claim 1 , characterized in that the content of said polyethylene glycol esters amounts in each case to 0.01-50 wt. % relative to the total preparation.

9. The preparation as claimed in claim 1 , characterized in that the amount ratio of polyethylene glycol esters of claim 1 to polyethylene glycol ethers of the formula 2 amounts to 90:10 to 10:90.

10. The preparation as claimed in claim 1 , further containing one or more moderately water-soluble active ingredients selected from the group consisting of odoriferous substances, perfume oils, aroma substances, aromas, fatty oils, fatty acids, waxes, ceramides, pseudoceramides, sterols, phytosterols, antiacne active ingredients, antidandruff active ingredients, antimicrobial active ingredients, preservatives, antiperspirants, antiirritants, pruritus-relieving active ingredients, cooling active ingredients, antioxidants, UV filters, antiaging active ingredients, skin-lightening and skin-tanning active ingredients, skin moisture regulators, osmolytes, insect repellents, enzyme inhibitors, odor absorbers and dyes.

11. The preparation as claimed in claim 1 , wherein the preparation is a preparation of the surfactant cleansing product type.

12. The preparation as claimed in claim 5 , wherein the ratio is 3:1 to 1:2.

13. The preparation as claimed in claim 1 , characterized in that the content of polyethylene glycol esters of claim 1 and/or the content of polyethylene glycol ethers of the formula 2 amounts in each case to 0.01-50 wt. % relative to the total preparation, with the proviso that the total content of polyethylene glycol esters of claim 1 and polyethylene glycol ethers of the formula 2 amounts to no more than 50 wt. %.

14. The preparation as claimed in claim 11 , wherein the surfactant cleansing product type is selected from the group consisting of shampoo, shower gel and bath preparation, or selected from the group consisting of the “water-in-oil” (W/O) type, the “oil-in-water” (O/W) and multiple emulsions.

15. The preparation as claimed in claim 14 , wherein the multiple emulsions are selected from the group consisting of the water-in-oil-in-water (W/O/W), PIT emulsion, Pickering emulsion, microemulsion and nanoemulsion types.

Assignments (2)
MERGER Recorded Apr 22, 2011
From: SYMRISE GMBH & CO. KG
To: SYMRISE AG
Reel/Frame 026171/0582 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 24, 2010
From: SCHMAUS, GERHARD; LANGE, SABINE; OHRMANN, ROLF; ISSLEIB, MARTINA
To: SYMRISE GMBH & CO. KG
Reel/Frame 023981/0707 →