IP Library Granted Patent US 12,503,669
Granted Patent B2
US 12,503,669 · App. 16/326,632 · Granted Dec 23, 2025

Detergent compositions comprising ultra-low molecular weight polysaccharides

Inventors: Marko Kanniainen (Äänekoski, FI); Pirkko-Leena Hakkarainen (Huutomäki, FI); Andries Hanzen (Ede, NL)
Assignee: NOURYON CHEMICALS INTERNATIONAL B.V.
C11D3/225C11D1/008C11D3/0036C11D3/228C11D3/3796C11D3/38
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,503,669
App. No.
16/326,632
Granted
Dec 23, 2025
Kind
B2
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.

Claims (26)

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.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 5, 2024
From: NOURYON CHEMICALS FINLAND OY
To: NOURYON CHEMICALS INTERNATIONAL B.V.
Reel/Frame 066383/0608 →
CHANGE OF NAME Recorded Aug 7, 2020
From: CP KELCO OY
To: NOURYON CHEMICALS FINLAND OY
Reel/Frame 053432/0848 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 9, 2019
From: KANNIAINEN, MARKO; HAKKARAINEN, PIRKKO-LEENA; HANZEN, ANDRIES
To: CP KELCO OY
Reel/Frame 048828/0157 →
Continuity (3)
Provisional Application 62400752 · Sep 28, 2016
Provisional Application 62519687 · Jun 14, 2017
Related Publication 20190390140A1 · Dec 26, 2019
References Cited (31)
US 5278304A · Kniewske et al. · 1994 [cited by applicant]
US 7842658B2 · Guckenbiehl et al. · 2010 [cited by applicant]
US 8349789B2 · Lant · 2013 [cited by applicant]
US 8858651B2 · Miracle et al. · 2014 [cited by applicant]
US 20040005993A1 · Hartshorn · 2004 [cited by examiner]
US 20070249516A1 · Zhu · 2007 [cited by examiner]
US 20090318326A1 · Lant · 2009 [cited by applicant]
US 20100075887A1 · Wang et al. · 2010 [cited by applicant]
US 20110034365A1 · Lant · 2011 [cited by examiner]
US 20120122998A1 · Palla-Venkata · 2012 [cited by examiner]
US 20120304402A1 · Miracle et al. · 2012 [cited by applicant]
US 20150051134A1 · Miracle et al. · 2015 [cited by applicant]
US 20190390140A1 · Kanniainen · 2019 [cited by applicant]
CN 103201367 · 2013 [cited by examiner]
CN 103201367A · 2013 [cited by applicant]
EP 0100125A2 · 1984 [cited by applicant]
EP 0511540A2 · 1992 [cited by applicant]
JP 5534256A · 1980 [cited by applicant]
JP S5534256A · 1980 [cited by applicant]
JP 200850410A · 2008 [cited by applicant]
JP 200850411A · 2008 [cited by applicant]
JP 2019530775A · 2019 [cited by applicant]
PL 231176B1 · 1982 [cited by applicant]
RU 2466182C2 · 2012 [cited by applicant]
RU 2598853C2 · 2016 [cited by applicant]
WO 9829528A2 · 1998 [cited by applicant]
WO 2007118732A1 · 2007 [cited by applicant]
WO 2018060262A1 · 2018 [cited by applicant]
International Search Report and Written Opinion for International Application No. PCT/EP2017/074520, mailed Dec. 21, 2017. [cited by applicant]
CP Kelco CMC Book: Carboxymethylcellulose (CMC), 1stEdition, 2009, downloaded on Jul. 13, 2020, from the website cpkelco.com. [cited by applicant]
English translation of Office Action issued in counterpart JP Patent Application No. 2019-516461 dated Apr. 5, 2022 (Received Apr. 14, 2022). [cited by applicant]