Detergent compositions comprising ultra-low molecular weight polysaccharides

Patent metadata

Field	Value
Publication number	US-12503669-B2
Application number	US-201716326632-A
Country	US
Kind code	B2
Filing date	Sep 27, 2017
Priority date	Sep 28, 2016
Publication date	Dec 23, 2025
Grant date	Dec 23, 2025

Abstract

Detergent compositions are provided that include a polysaccharide selected from a carboxymethyl cellulose component, an anionic cellulose derivative, or mixtures thereof and a surfactant system, wherein the polysaccharide has a molecular weight of no greater than from about 1,000 Dalton to 80,000 Dalton.

First claim

We claim:

1 . A detergent composition comprising a polysaccharide and from about 5% to about 70% by weight of a surfactant system, based on a total weight of the composition; wherein the polysaccharide is selected from the group consisting of a carboxymethyl cellulose component, an anionic cellulose derivative, and mixtures thereof; wherein the polysaccharide has a weight average molecular weight in a range of from about 1,000 Dalton to 40,000 Dalton; and wherein the detergent composition does not contain any polysaccharide having a molecular weight peak greater than about 80,000 Dalton.

2 . The detergent composition of claim 1 , wherein the polysaccharide has a weight average molecular weight from about 1,000 Da to about 30,000 Da.

3 . The detergent composition of claim 1 , wherein the polysaccharide is the carboxymethyl cellulose component.

4 . The detergent composition of claim 3 , wherein the carboxymethyl cellulose component is:
a) sodium carboxymethyl cellulose; or b) a modified carboxymethyl cellulose; or c) a hydrophobic-modified carboxymethyl cellulose; or d) cationic-modified carboxymethyl cellulose; or e) a sulfate- or sulfonate-modified carboxymethyl cellulose.

5 . The detergent composition of claim 3 , wherein the carboxymethyl cellulose component has a degree of substitution from about 0.2 to about 1.5.

6 . The detergent composition of claim 1 , wherein the polysaccharide is present in the detergent composition at a concentration from about 0.005% to about 10% by weight of the detergent composition.

7 . The detergent composition of claim 1 , wherein the surfactant system is present in the detergent composition at a concentration from about 10% to about 40% by weight of the detergent composition.

8 . The detergent composition of claim 1 , wherein the surfactant system comprises an anionic surfactant, a nonionic surfactant, or a combination of the anionic surfactant and the nonionic surfactant.

9 . The detergent composition of claim 8 , wherein the weight ratio of anionic surfactant to nonionic surfactant in the surfactant system is from about 2 to about 1.

10 . The detergent composition of claim 1 , wherein the detergent composition does not comprise a cellulosic fibrous structuring agent.

11 . The detergent composition of claim 1 , wherein the detergent composition is in liquid form or particulate form.

12 . A laundry detergent composition comprising a carboxymethyl cellulose component at a concentration from about 0.005% to about 10% by weight of the detergent composition and a surfactant system at a concentration from about 5% to about 70% by weight of the detergent composition; wherein the carboxymethyl cellulose component has a weight average molecular weight in a range of from about 1,000 Da to 40,000 Da, the laundry detergent does not comprise any polysaccharide having a molecular weight peak greater than about 80,000 Da, and the laundry detergent composition is in a liquid form.

13 . A detergent composition comprising a polysaccharide and from about 5% to about 70% by weight of a surfactant system, based on a total weight of the composition; wherein the polysaccharide is selected from the group consisting of a carboxymethyl cellulose component, an anionic cellulose derivative, and mixtures thereof; wherein the polysaccharide has a weight average molecular weight in a range of from about 1,000 Dalton to 40,000 Dalton; wherein the detergent composition does not comprise any polysaccharide having a molecular weight peak greater than about 80,000 Dalton; and wherein the detergent composition does not comprise a bacterial cellulose.

14 . A method of cleaning an article selected from clothes or dishes, said method comprising washing the article in the presence of a detergent composition, said detergent composition comprising a polysaccharide and from about 5% to about 70% by weight of a surfactant system, based on a total weight of the composition; wherein the polysaccharide is selected from the group consisting of a carboxymethyl cellulose component, an anionic cellulose derivative, and mixtures thereof; wherein the polysaccharide has a weight average molecular weight in a range of from about 1,000 Dalton to 40,000 Dalton; and wherein the detergent composition does not contain any polysaccharide having a molecular weight peak greater than about 80,000 Dalton.

15 . The detergent composition of claim 1 , wherein the polysaccharide has a weight average molecular weight from about 1,000 Da to about 15,000 Da.

16 . The laundry detergent composition of claim 12 , wherein the polysaccharide has a weight average molecular weight from about 1,000 Da to about 15,000 Da.

17 . The detergent composition of claim 13 , wherein the polysaccharide has a weight average molecular weight from about 1,000 Da to about 15,000 Da.

18 . The method of claim 14 , wherein the polysaccharide has a weight average molecular weight from about 1,000 Da to about 15,000 Da.

19 . The detergent composition of claim 12 , wherein the polysaccharide has a weight average molecular weight from about 1,000 Da to about 30,000 Da.

20 . The detergent composition of claim 13 , wherein the polysaccharide has a weight average molecular weight from about 1,000 Da to about 30,000 Da.

21 . The method of claim 14 , wherein the polysaccharide has a weight average molecular weight from about 1,000 Da to about 30,000 Da.

Assignees

• Nouryon Chemicals Int Bv

Inventors

• Kanniainen Marko
• Hakkarainen Pirkko-Leena
• Hanzen Andries

Classifications

• C11D3/38

  Products with no well-defined composition {, e.g. natural products} · CPC title

• C11D3/3796

  Amphoteric polymers or zwitterionic polymers · CPC title

• C11D3/228

  with phosphorus- or sulfur-containing groups · CPC title

• C11D3/0036

  Soil deposition preventing compositions; Antiredeposition agents · CPC title

• C11D1/008

  Polymeric surface-active agents · CPC title