Use of isosorbide monoesters as thickeners

Patent metadata

Field	Value
Publication number	US-9555117-B2
Application number	US-201214237042-A
Country	US
Kind code	B2
Filing date	Jul 31, 2012
Priority date	Aug 4, 2011
Publication date	Jan 31, 2017
Grant date	Jan 31, 2017

Abstract

The use of one or more compounds of the formula (I)

in which
R is a straight-chain or branched saturated alkyl group having 5 to 11 carbon atoms or a straight-chain or branched mono- or polyunsaturated alkenyl group having 5 to 11 carbon atoms

as thickeners is described.

The use is preferably in cosmetic, dermatological or pharmaceutical compositions, in crop protection formulations, in washing or cleaning compositions or in paints or coatings.

First claim

The invention claimed is:

1. A method of thickening a cosmetic, dermatological or pharmaceutical composition, crop protection formulation, washing or cleaning composition or paint or coating, comprising the step of adding a thickening composition comprising at least one compound of the formula (I)

in which
R is a straight-chain or branched saturated alkyl group having 5 to 11 carbon atoms or a straight-chain or branched mono- or polyunsaturated alkenyl group having 5 to 11 carbon atoms,
wherein the thickening composition further comprises at least one other substance selected from the group consisting of sorbitol, sorbitol esters, isosorbide, isosorbide diesters and carboxylic acids and wherein the hydroxyl value of the mixture of the at least one compound of the formula (I) and the at least one other substance selected from the group consisting of sorbitol, sorbitol esters, isosorbide, isosorbide diesters and carboxylic acids is less than or equal to 320,

to the cosmetic, dermatological or pharmaceutical composition, crop protection formulation, washing or cleaning composition or paint or coating.

2. The method of claim 1 , wherein the radical R in formula (I) is a straight-chain saturated alkyl radical having 7 to 9 carbon atoms.

3. The method of claim 2 , wherein the radical R in formula (I) is a straight-chain saturated alkyl radical having 7 carbon atoms.

4. The method of claim 1 , wherein the thickening composition comprises at least one compound of the formula (I),
I) isosorbide and
II) at least one isosorbide diester of the formula (II)

where R is a straight-chain or branched saturated alkyl group having 5 to 11 carbon atoms or a straight-chain or branched mono- or polyunsaturated alkenyl group having 5 to 11 carbon atoms.

5. The method of claim 4 , wherein the thickening composition comprises at least one compound of the formula (I),
I) from 0.05 to 0.7 by weight of isosorbide and
II) from 0.1 to 1.0 by weight of the at least one isosorbide diester of the formula (II), in each case based on 1.0 part by weight of the at least one compound of the formula (I).

6. The method of claim 1 , wherein the thickening composition comprises the at least one compound of the formula (I) in an amount of at least 30% by weight, in each case based on the total weight of the finished composition.

7. The method of claim 1 , wherein the cosmetic, dermatological or pharmaceutical composition, the crop protection formulation, the washing or cleaning composition or the paint or coating comprises the at least one compound of the formula (I) in an amount of from 0.01 to 10.0% by weight, in each case based on the total weight of the finished cosmetic, dermatological or pharmaceutical composition, crop protection formulation, washing or cleaning composition or paint or coating.

8. The method of claim 1 , wherein the cosmetic, dermatological or pharmaceutical composition, the crop protection formulation, the washing or cleaning composition or the paint or coating are formulated on an aqueous or aqueous-alcoholic basis or are present as emulsion or dispersion.

9. The method of claim 1 , wherein the cosmetic, dermatological or pharmaceutical composition, the crop protection formulation, the washing or cleaning composition or the paint or coating have a pH of from 2 to 11.

Assignees

• Pilz Maurice Frederic
• Klug Peter
• Scherl Franz-Xaver
• Clariant Int Ltd

Inventors

• Pilz Maurice Frederic
• Klug Peter
• Scherl Franz-Xaver

Classifications

• A61K2800/48

  Thickener, Thickening system · CPC title

• A61K47/22 Primary

  Heterocyclic compounds, e.g. ascorbic acid, tocopherol or pyrrolidones · CPC title

• A01N43/90

  having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system · CPC title

• A61K8/4973

  with oxygen as the only hetero atom · CPC title

• C11D3/2096

  Heterocyclic compounds · CPC title