Liquid cationic formulation and method for the production thereof

Patent metadata

Field	Value
Publication number	US-10030213-B2
Application number	US-201615247320-A
Country	US
Kind code	B2
Filing date	Aug 25, 2016
Priority date	Mar 26, 2014
Publication date	Jul 24, 2018
Grant date	Jul 24, 2018

Abstract

The invention relates to a thickening concentrate for continuously producing a liquid cationic formulation of domestic cleaners or fabric softeners and to a method for continuously producing a liquid cationic formulation of domestic cleaners or fabric softeners, in which method a thickening concentrate according to the invention is used. The invention further relates to a formulation that can be obtained in accordance with the method according to the invention.

First claim

What is claimed is:

1. A thickening concentrate for continuously producing a liquid cationic formulation of household cleaners or fabric softeners, wherein the concentrate comprises:
a cationic acrylic polymer as a thickening agent and at least one suspending agent for the acrylic polymer of the following formula (A)

where
R 1 denotes a hydrogen atom, or together with R 2 for ring closure denotes a carbonyl group; and
R 2 denotes a hydrogen atom, a methyl group, a 3-hydroxypropoxy group, or together with R 1 for ring closure denotes a carbonyl group;
R 3 denotes a hydrogen atom, a 1-hydroxyprop-2-yloxy group or a 2-hydroxypropoxy group, and wherein the concentrate comprises the suspending agent in an amount of 70 wt. % to 99 wt. %, based on the total weight of the concentrate.

2. The thickening concentrate according to claim 1 characterized in that the suspending agent for the acrylic polymer is selected from the group consisting of dipropylene glycol, 1-butanol, 1-propanol, and γ-butyrolactone, and the mixtures thereof.

3. The thickening concentrate according to claim 1 characterized in that the suspending agent present is at least one suspending agent for the acrylic polymer of the formula general formula (A-1)

where
R 1 denotes a hydrogen atom, or together with R 2 for ring closure denotes a carbonyl group; and
R 2 denotes a hydrogen atom, a methyl group, a 3-hydroxypropoxy group, or together with R 1 for ring closure denotes a carbonyl group.

4. A thickening concentrate for continuously producing a liquid cationic formulation of household cleaners or fabric softeners, wherein the concentrate comprises:
a cationic acrylic polymer as a thickening agent and at least one suspending agent for the acrylic polymer of the following formula (A)

where
R 1 denotes a hydrogen atom, or together with R 2 for ring closure denotes a carbonyl group; and
R 2 denotes a hydrogen atom, a methyl group, a 3-hydroxypropoxy group, or together with R 1 for ring closure denotes a carbonyl group;
R 3 denotes a hydrogen atom, a 1-hydroxyprop-2-yloxy group or a 2-hydroxypropoxy group, and wherein the concentrate comprises water in an amount of 5 wt. % or less, based on the total weight of the concentrate.

5. The concentrate according to claim 4 , characterized in that the weight ratio of the suspending agent to the acrylic polymer is in the range of 4:1 to 1:3.

6. The concentrate according to claim 1 , characterized in that the cationic acrylate polymer is present in the form of particles, having a spherical particle size in the range of 0.2 μm to 1.5 μm.

7. The concentrate according to claim 1 , characterized in that the viscosity is 10,000 mPas or less.

8. The concentrate according to claim 1 , characterized in that at least one cationic acrylic polymer is present, which is formed of
a) a water-soluble, ethylenically unsaturated monomer, or a mixture of these monomers comprising at least one cationic monomer;
b) at least one cross-linking agent in an amount of more than 50 ppm, based on the weight of compound a); and
c) at least one chain transfer agent.

9. The concentrate according to claim 8 , characterized in that the cationic monomer corresponds to a compound according to the following compound (I)

in which independently of one another
R 1 represents hydrogen or methyl,
R 2 represents hydrogen or C 1 to C 4 alkyl,
R 3 represents C 1 -C 4 alkylene,
R 4, R 5 and R 6 each independently of one another represent hydrogen or C 1 to C 4 alkyl,
X represents —O—or —NH—, and
Y represents Cl, Br, I, bisulfate or methosulfate.

10. A method for continuously producing a liquid cationic formulation of household cleaners or fabric softeners, characterized in that a concentrate according to claim 1 is added to the formulation.

11. The method according to claim 10 , characterized in that the pH value of the formulation is 6 or less.

Assignees

• Henkel Ag & Co Kgaa

Inventors

• Holderbaum Thomas
• Schaefer Roland
• Diedrich Rainer

Classifications

• C11D17/003

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

• C11D17/0004

  Non aqueous liquid compositions comprising insoluble particles · CPC title

• C11D3/201

  linear · CPC title

• C11D3/0015 Primary

  liquid · CPC title

• C11D3/2093

  Esters; Carbonates · CPC title