Rheology modifier

Patent metadata

Field	Value
Publication number	US-2017369602-A1
Application number	US-201515527968-A
Country	US
Kind code	A1
Filing date	Nov 12, 2015
Priority date	Nov 18, 2014
Publication date	Dec 28, 2017
Grant date	—

Abstract

A rheology modifier obtainable by polymerizing (i) at least one ethylenically unsaturated carboxylic acid; (ii) at least one nonionic ethylenically unsaturated surfactant monomer, (iii) at least one C 1 -C 2 -alkyl methacrylate, and (iv) at least one C 2 -C 4 -alkyl acrylate, where the alkyl chain length averaged over the number of alkyl groups of the alkyl acrylate is 2.1 to 4.0. The polymerization is carried out in the presence of at least one hydrocarbon comprising at least one XH-group, wherein X is selected from the group consisting of O, P, N and S. Liquid formulations and particles containing liquid detergents comprising the rheology modifier are also described.

First claim

1 . A rheology modifier obtainable by polymerizing
(i) at least one ethylenically unsaturated carboxylic acid; (ii) at least one nonionic ethylenically unsaturated surfactant monomer, (iii) at least one C 1 -C 2 -alkyl methacrylate, and (iv) at least one C 2 -C 4 -alkyl acrylate, where the alkyl chain length averaged over the number of alkyl groups of the alkyl acrylate is 2.1 to 4.0; in the presence of at least one hydrocarbon comprising at least one XH-group, wherein X is selected from the group consisting of O, P, N and S.

2 . The rheology modifier according to claim 1 , wherein the at least one hydrocarbon is selected from the group consisting of substituted and non-substituted oligo- and polysaccharides.

3 . The rheology modifier according to claim 1 , wherein the at least one hydrocarbon is selected from the group consisting of substituted and non-substituted β-1,4-D-glucopyranosides.

4 . The rheology modifier according to claim 1 , wherein the at least one hydrocarbon is selected from the group consisting of carboxymethylcellulose and starch.

5 . The rheology modifier according to claim 1 , wherein the at least one nonionic ethylenically unsaturated surfactant monomer has the general formula (I)
R—O—(CH 2 —CHR′—O) n —CO—CR″′CH 2   (I)
in which R is C 6 -C 30 -alkyl, R′ is hydrogen or methyl, R″ is hydrogen or methyl, and n is an integer from 2 to 100.

6 . The rheology modifier according to claim 1 , wherein the at least one ethylenically unsaturated carboxylic acid is selected from the group consisting of acrylic acid, methacrylic acid, itaconic acid and maleic acid.

7 . The rheology modifier according to claim 1 , wherein the alkyl acrylate comprises 5 to 85% by weight, based on the total weight of the alkyl acrylate, of copolymerized units of n-butyl acrylate.

8 . The rheology modifier according to claim 1 , further comprising at least one of an anionic and a nonionic emulsifier.

9 . The rheology modifier according to claim 8 , wherein the emulsifier has the general formula (II)
R—O—(CH 2 —CHR′—O) n —X   (II)
wherein R is C 6 -C 30 -alkyl, R′ is hydrogen or methyl, X is hydrogen or SO 3 M, M is hydrogen or an alkali metal, and n is an integer from 2 to 100.

10 . The rheology modifier according to claim 1 , wherein the at least one hydrocarbon is present in an amount of 1 to 50% by weight, based on the total weight of the alkyl acrylate.

11 . A liquid formulation comprising the rheology modifier as defined in claim 1 and at least one component selected from the group consisting of gas bubbles, nanoparticles, and microcapsules, wherein the gas bubbles, nanoparticles, and microcapsules comprise at least one active ingredient selected from the group consisting of enzymes, perfumes, pharmaceuticals, organic particles, pigments, fibers, biocides, herbicides and fungicides.

12 . (canceled)

13 . A liquid detergent composition, comprising
at least one rheology modifier as defined in claim 1 , at least one surfactant, a liquid continuous phase comprising water and at least one component, dispersed in said liquid continuous phase.

14 . The liquid detergent composition according to claim 13 , wherein said continuous phase comprises said rheology modifier.

15 . The liquid detergent composition according to claim 13 wherein the at least one surfactant comprises at least one anionic surfactant and at least one nonionic surfactant.

16 . The liquid detergent composition according to claim 15 , wherein the anionic surfactant is comprised in a total amount from 2 to 20 wt. % relative to the liquid detergent composition.

17 . The liquid detergent composition according to claim 15 , wherein the nonionic surfactant is comprised in a total amount from 1 to 10 wt. % relative to the liquid detergent composition.

18 . The liquid detergent composition according to claim 13 further comprising at least one inorganic salt.

19 . The liquid detergent composition according to claim 18 , wherein the at least one inorganic salt is comprised in a total amount from 0.1 to 1 wt. % relative to the liquid detergent composition.

20 . The liquid detergent composition according to claim 13 , wherein the at least one component dispersed in the liquid continuous phase particles comprises a particulate solid selected from the group consisting of microcapsules and pigments.

21 . The liquid detergent composition according to claim 20 , wherein the particulate solid has an average particle size X 50,3 of from 0.05 to 500 μm.

Assignees

• Basf Se
• Henkel Ag & Co Kgaa

Inventors

• Leyrer Reinhold
• Ettl Roland
• Schuemann Sabine
• Antir Marouane
• Bastigkeit Thorsten
• Bellomi Luca
• Woltery Petra
• Sonnenschein Frank
• Baumgarten Elisabeth
• Blank Volker

Classifications

• A61K2800/48

  Thickener, Thickening system · CPC title

• A61Q19/00

  Preparations for care of the skin · CPC title

• C11D3/3765

  in liquid compositions · CPC title

• C08F2800/20

  as weight or mass percentages · CPC title

• C11D1/722

  Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; {Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele groups (C11D1/721 takes precedence)} · CPC title