Method of use of composition comprising a quaternary ammonium compound, a cationic polysaccharide and a nonionic polysaccharide

Patent metadata

Field	Value
Publication number	US-11034916-B2
Application number	US-201515318865-A
Country	US
Kind code	B2
Filing date	Jan 15, 2015
Priority date	Jun 18, 2014
Publication date	Jun 15, 2021
Grant date	Jun 15, 2021

Abstract

The present invention relates to a method for conditioning a fabric comprising the step of contacting the fabric with an aqueous medium comprising a composition, wherein the composition comprises: (a) a quaternary ammonium compound; (b) a cationic polysaccharide; and (c) a nonionic polysaccharide. In particular, the quaternary ammonium compound is a biodegradable quaternary ammonium compound. The composition has excellent softening performance and improved perfume longevity. The present invention also relates to use of said composition for conditioning a fabric.

First claim

The invention claimed is:

1. A method for conditioning a fabric comprising the step of contacting the fabric with an aqueous medium comprising a composition, wherein the composition consists of: (a) a quaternary ammonium compound; (b) a cationic polysaccharide; and (c) a nonionic polysaccharide.

2. The method according to claim 1 , wherein the weight ratio of the cationic polysaccharide to the nonionic polysaccharide in the composition is from 1:10 to 10:1.

3. The method according to claim 1 comprising from 0.2 wt. % to 5 wt. % of the cationic polysaccharide.

4. The method according to claim 1 comprising from 0.2 wt. % to 5 wt. % of the nonionic polysaccharide.

5. The method according to claim 1 comprising from 0.2 wt. % to 2 wt. % of the cationic polysaccharide.

6. The method according to claim 1 comprising from 0.2 wt. % to 2 wt. % of the nonionic polysaccharide.

7. The method according to claim 1 , wherein the cationic polysaccharide is a cationic guar.

8. The method according to claim 1 , wherein the nonionic polysaccharide is a nonionic guar.

9. The method according to claim 1 , wherein the cationic polysaccharide has an average molecular weight of between 100,000 daltons and 1,500,000 daltons.

10. The method according to claim 1 , wherein the quaternary ammonium compound is selected from the group consisting of:
TET : Di(tallowcarboxyethyl)hydroxyethyl methyl ammonium methylsulfate;
TEO : Di(oleocarboxyethyl)hydroxyethyl methyl ammonium methylsulfate;
TES : Distearyl hydroxyethyl methyl ammonium methylsulfate;
TEHT : Di(hydrogenated tallow-carboxyethyl)hydroxyethyl methyl ammonium methylsulfate;
TEP : Di(palmiticcarboxyethyl)hydroxyethyl methyl ammonium methylsulfate;
DEEDMAC : Dimethylbis[2-[(1-oxooctadecyl)oxy]ethyl]ammonium chloride; and
DHT : Dihydrogenated tallowdimethylammonium chloride.

11. The method according to claim 1 , wherein the composition comprises from 3 wt. % to 8 wt. % of the quaternary ammonium compound based on the total weight of the composition.

12. The method according to claim 1 , wherein the weight ratio of the quaternary ammonium compound to the total weight of the cationic polysaccharide and the nonionic polysaccharide in the composition is between 100:1 and 2:1.

13. The method according to claim 1 , wherein the weight ratio of the quaternary ammonium compound to the total weight of the cationic polysaccharide and the nonionic polysaccharide in the composition is between 30:1 and 5:1.

14. The method according to claim 1 , wherein the fabric is contacted with the aqueous medium comprising the composition during a rinse cycle of an automatic laundry machine.

15. The method according to claim 1 , wherein after the fabric is contacted with the aqueous medium, the fabric is conditioned.

16. The method according to claim 1 , wherein the method softens the fabric.

Assignees

• Rhodia Operations

Inventors

• Zhang Hai Zhou
• Christov Nikolay
• Jin Da Wei

Classifications

• C11D11/0094

  Process for making liquid detergent compositions, e.g. slurries, pastes or gels · CPC title

• C11D1/835 Primary

  Mixtures of non-ionic with cationic compounds · CPC title

• C11D1/62

  Quaternary ammonium compounds · CPC title

• C11D1/66

  Non-ionic compounds {(C11D1/002, C11D1/004, C11D1/008 take precedence)} · CPC title

• C11D3/222

  Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin · CPC title