Liquid laundry detergents with perfume capsules

Patent metadata

Field	Value
Publication number	US-9402790-B2
Application number	US-201314031177-A
Country	US
Kind code	B2
Filing date	Sep 19, 2013
Priority date	Mar 22, 2011
Publication date	Aug 2, 2016
Grant date	Aug 2, 2016

Abstract

The present invention relates to a structured liquid composition comprising anionic surfactant, nonionic surfactant and a plurality of stable and evenly suspended encapsulated actives. The liquid composition is externally structured by incorporating a cross-linked acrylic copolymer.

First claim

What is claimed is:

1. A structured liquid composition comprising:
(a) anionic surfactant at a level of from 10% up to 25% by weight of said composition, said anionic surfactant comprising linear alkylbenzene sulphonate and fatty alcohol ether sulfate;
(b) nonionic surfactant at a level of from 5% up to 15% by weight of said composition,
(c) a structurant at a level of from 0.1% to 2% by weight of said composition, wherein said structurant is selected from the group of structurants consisting of crosslinked anionic acrylic copolymer;
(d) a plurality of encapsulated actives at a level of from 0.05% up to 0.22% by weight of said composition, wherein the encapsulated actives have an d 90 value of below 20 μm, the encapsulated actives comprising a hollow shell within which the active is contained, wherein the shell comprises materials selected from the group consisting of reaction products of one more amines with one or more aldehydes;
(e) fatty acid soap at a level of from 2.5 to 7% by weight of said composition; and wherein the encapsulates remain stably suspended at 50° C. for at least 7 days.

2. The structured liquid composition according to claim 1 , wherein said anionic surfactant is present at a level of from 15% up to 25% by weight of said composition.

3. The structured liquid composition according to claim 1 , wherein said structurant is a cross-linked acrylic copolymer comprising methacrylic acid and ethyl acrylate as monomers.

4. The structured liquid composition according to claim 1 , wherein said structurant is present at a level of from 0.15% up to 1% by weight of said composition.

5. The structured liquid composition according to claim 1 , wherein said encapsulated active comprises a friable microcapsule, a moisture-activated microcapsule, a heat-activated microcapsule, or combinations thereof.

6. The structured liquid composition according to claim 1 , wherein said encapsulated active comprises an active selected from the group consisting of perfumes, softening agents, anti-static agents, refreshing agents, anti-microbial agents, disinfecting agents, anti-wrinkle agents, malodor control agents, insect/pet repellents, skin/fabric conditioning agents, silicones, anti-microbials, brighteners, bleaches, antifoams, and combinations thereof.

7. The structured liquid composition according to claim 6 , wherein said encapsulated active comprises a perfume as an active.

Assignees

• Henkel Ag & Co Kgaa

Inventors

• Marzouk Ashraf
• Pegelow Ulrich
• Gueldner Annika
• Nemmertz Simone
• Ott Thorsten

Classifications

• C11D10/045

  based on non-ionic surface-active compounds and soap · CPC title

• C11D3/3765

  in liquid compositions · CPC title

• C11D1/22

  derived from aromatic compounds · CPC title

• C11D17/0013

  Liquid compositions with insoluble particles in suspension (C11D17/0021, C11D17/0026, C11D17/003 take precedence) · CPC title

• C11D1/83 Primary

  Mixtures of non-ionic with anionic compounds · CPC title