Lipase-stable thickening agent

Patent metadata

Field	Value
Publication number	US-9745251-B2
Application number	US-201314413875-A
Country	US
Kind code	B2
Filing date	Mar 7, 2013
Priority date	Jul 11, 2012
Publication date	Aug 29, 2017
Grant date	Aug 29, 2017

Abstract

The invention relates to novel compounds, to aqueous, in particular surfactant-containing formulations containing the novel compounds and to the use of the novel compounds as thickening agents of aqueous, in particular surfactant-containing formulations.

First claim

The invention claimed is:

1. An aqueous formulation comprising a compound of formula (I)

wherein R 1 and R 2 of the compound of formula (I) are selected from one of the following groupings
R 1 ═H or 2-hydroxypropyl and R 2 =2-hydroxypropyl;
R 1 ═H or 2-aminoethyl and R 2 =2-aminoethyl;
R 1 ═H or N-(2-hydroxyethyl)aminoethyl and R 2 ═N-(2-hydroxyethyl)aminoethyl;
R 1 ═H or 2-(2-hydroxyethoxy)ethyl and R 2 =2-(2-hydroxyethoxy)ethyl;
R 1 =methyl or 2,3,4,5,6-pentahydroxyhexyl and R 2 =2,3,4,5,6-pentahydroxyhexyl; and
R 1 ═H or 2-(1-piperazinyl)ethyl and R 2 =2-(1-piperazinyl)ethyl.

2. The aqueous formulation of claim 1 , wherein R 1 ═H and R 2 ═N-(2-hydroxyethyl)aminoethyl.

3. The aqueous formulation according to claim 1 , wherein said aqueous formulation further comprises at least one surfactant.

4. The aqueous formulation according to claim 3 , wherein the at least one surfactant is a mixture of at least one anionic surfactant and at least one nonionic surfactant.

5. The aqueous formulation according to claim 3 , wherein the at least one surfactant is a biosurfactant selected from rhamnolipids, sophorolipids, trehalose- and other mycolic-acid-containing glycolipids, and also cellobiose and mannosylerythritol lipids.

6. The aqueous formulation according to claim 1 , wherein said aqueous formulation further comprises at least one enzyme.

7. The aqueous formulation according to claim 1 , wherein said at least one compound of formula (I) is present in an amount of from 0.1% by weight to 50% by weight, where the % by weight refers to the total formulation.

Assignees

• Evonik Industries Ag
• Evonik Degussa Gmbh

Inventors

• Klostermann Michael
• Wenk Hans Henning
• Koehle Hans-Juergen
• Venzmer Joachim
• Kuppert Dirk
• Lattich Juergen
• Kottke Ulrike

Classifications

• C07C235/10

  having the nitrogen atom of at least one of the carboxamide groups bound to an acyclic carbon atom of a hydrocarbon radical substituted by nitrogen atoms not being part of nitro or nitroso groups · CPC title

• A61K2800/59

  Mixtures · CPC title

• C07C235/08 Primary

  having the nitrogen atom of at least one of the carboxamide groups bound to an acyclic carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms · CPC title

• C11D17/003

  Colloidal solutions, e.g. gels; Thixotropic solutions or pastes · CPC title

• A61K8/42

  Amides · CPC title