Combination of isosorbide diesters with non-ionic surfactants for use as pearlizing agent

Patent metadata

Field	Value
Publication number	US-10517809-B2
Application number	US-201615575669-A
Country	US
Kind code	B2
Filing date	May 17, 2016
Priority date	May 27, 2015
Publication date	Dec 31, 2019
Grant date	Dec 31, 2019

Abstract

A description is given of a composition comprising at least one isosorbide diester as constituent I and at least one non-ionic surfactant as constituent II and also of a method for the preparation thereof. In addition, the present invention relates to the use of this composition as pearlizing agent in cosmetic compositions.

First claim

The invention claimed is:

1. A composition comprising:
a pearlizing wax as a first constituent, the pearlizing wax comprising: (i) isosorbide diesters comprising isosorbide distearate, isosorbide dipalmitate, and isosorbide palmitate stearate, (ii) isosorbide monoesters comprising isosorbide monostearate and isosorbide monopalmitate, and (iii) fatty acids comprising stearic acid and palmitic acid; and
a non-ionic surfactant as a second constituent,
wherein the composition comprises:
(a) 10 to 40% by weight pearlizing wax;
(b) 5 to 40% by weight non-ionic surfactant;
(c) 0 to 40% by weight polyol; and
(d) up to 100% by weight water.

2. The composition as claimed in claim 1 , wherein the isosorbide diesters are present in the composition in an amount of at least 70% by weight, based on the pearlizing wax.

3. The composition as claimed in claim 1 , wherein a ratio by weight of isosorbide diesters to isosorbide monoesters in the composition is at least 4:1.

4. The composition as claimed in claim 1 , wherein a ratio by weight of isosorbide dipalmitate to isosorbide distearate in the composition is from 45:55 to 1:99, a ratio by weight of isosorbide monopalmitate to isosorbide monostearate is from 45:55 to 1:99, and a ratio by weight of palmitic acid to stearic acid in the composition is from 45:55 to 1:99.

5. The composition as claimed in claim 1 , wherein the fatty acids are present in the composition in an amount of 1 to 20% by weight, based on the pearlizing wax.

6. The composition as claimed in claim 1 , wherein the non-ionic surfactant comprises at least one alkyl polyglycoside.

7. The composition as claimed in claim 1 , wherein the composition comprises the pearlizing wax as the first constituent in an amount of 18 to 35% by weight, based on the composition.

8. The composition as claimed in claim 1 , wherein the composition comprises the non-ionic surfactant as the second constituent in an amount of 12 to 30% by weight, based on the composition.

9. The composition as claimed in claim 1 , wherein the composition comprises the polyol in an amount of 0.1 to 30% by weight, based on the composition.

10. The composition as claimed in claim 1 , wherein the composition comprises:
the pearlizing wax as the first constituent in an amount of 15 to 35% by weight, based on the composition; and
the non-ionic surfactant as the second constituent in an amount of 10 to 35% by weight, based on the composition.

11. The composition as claimed in claim 10 , wherein a ratio by weight of isosorbide dipalmitate to isosorbide distearate in the composition is from 45:55 to 1:99, a ratio by weight of isosorbide monopalmitate to isosorbide monostearate is from 45:55 to 1:99, and a ratio by weight of palmitic acid to stearic acid in the composition is from 45:55 to 1:99.

12. The composition as claimed in claim 11 , wherein:
the isosorbide diesters are present in the composition in an amount of at least 70% by weight, based on the pearlizing wax;
a ratio by weight of isosorbide diesters to isosorbide monoesters in the composition is at least 4:1; and
the fatty acids are present in the composition in an amount of 1 to 20% by weight, based on the pearlizing wax.

13. The composition as claimed in claim 12 , wherein the composition comprises the polyol in an amount of 0.1 to 30% by weight, based on the composition.

14. A method for preparing a composition as claimed in claim 1 , the method comprising:
(a) esterifying isosorbide with fatty acids comprising stearic acid and palmitic acid to obtain an esterification product pearlizing wax as the first constituent, the pearlizing wax comprising: (i) isosorbide diesters comprising isosorbide distearate, isosorbide dipalmitate, and isosorbide palmitate stearate, (ii) isosorbide monoesters comprising isosorbide monostearate and isosorbide monopalmitate, and (iii) fatty acids comprising stearic acid and palmitic acid, and
(b) mixing the esterification product pearlizinq wax from step (a) with the second constituent comprising the non-ionic surfactant to form the composition, wherein the composition comprises:
(i) 10 to 40% by weight pearlizinq wax;
(ii) 5 to 40% by weight non-ionic surfactant;
(iii) 0 to 40% by weight polyol; and
(iv) up to 100% by weight water.

15. A method for preparing an aqueous surface-active preparation with pearlescent effect, the method comprising:
adding the composition of claim 1 to an aqueous surfactant-containing composition.

16. The method of claim 15 , wherein the composition of claim 1 is added to the aqueous surfactant-containing composition in an amount of 0.2 to 10% by weight relative to the aqueous surface-active preparation with pearlescent effect.

Assignees

• Basf Se

Inventors

• Stoer Claudia
• Weissenegger Markus
• Nieendick Claus
• Winzek Mirella

Classifications

• A61Q19/00

  Preparations for care of the skin · CPC title

• A61K8/604 Primary

  Alkylpolyglycosides; Derivatives thereof, e.g. esters · CPC title

• A61K8/60

  Sugars; Derivatives thereof · CPC title

• A61K8/37

  Esters of carboxylic acids · CPC title

• A61Q5/02

  Preparations for cleaning the hair · CPC title