Liquid laundry detergent

Patent metadata

Field	Value
Publication number	US-12577504-B2
Application number	US-202218556154-A
Country	US
Kind code	B2
Filing date	Jul 13, 2022
Priority date	Jul 16, 2021
Publication date	Mar 17, 2026
Grant date	Mar 17, 2026

Abstract

A liquid laundry detergent is provided, comprising: liquid carrier; cleaning surfactant; and cleaning booster of formula (I)

where b is 2 to 4; wherein x is 0 to 2; wherein each R is independently selected from the group consisting of a hydrogen, a C 1-22 alkyl group and a —CH 2 C(═O)R 1 group; wherein each R 1 is independently of formula (II)

wherein the * indicates the point of attachment to formula (I); wherein R 2 is selected from the group consisting of a hydrogen and a C 1-22 alkyl group; wherein each R 3 and R 4 is independently selected from the group consisting of a hydrogen and a C 1-2 alkyl group, with the proviso that at least one of R 3 and R 4 is a hydrogen in each subunit a; and wherein a is 0 to 30.

First claim

We claim:

1 . A liquid laundry detergent formulation, comprising:
a liquid carrier; a cleaning surfactant; and a cleaning booster, wherein the cleaning booster is of formula (I)

wherein b is 2 to 4; wherein x is 0 to 2; wherein each R is independently selected from the group consisting of a hydrogen, a C 1-22 alkyl group and a —CH 2 C(═O)R 1 group; wherein each R 1 is independently of formula (II)

wherein the * indicates the point of attachment to formula (I); wherein R 2 is selected from the group consisting of a hydrogen and a C 1-22 alkyl group; wherein each R 3 and R 4 is independently selected from the group consisting of a hydrogen and a C 1-2 alkyl group, with the proviso that at least one of R 3 and R 4 is a hydrogen in each subunit a; and wherein a is 2 to 25.

2 . The liquid laundry detergent formulation, of claim 1 , wherein the liquid laundry detergent formulation comprises
25 to 97.9 wt %, based on weight of the liquid laundry detergent formulation, of the liquid carrier; 2 to 60 wt %, based on weight of the liquid laundry detergent formulation, of the cleaning surfactant; and 0.1 to 15 wt %, based on weight of the liquid laundry detergent formulation, of the cleaning booster.

3 . The liquid laundry detergent formulation of claim 2 , wherein the liquid carrier comprises water.

4 . The liquid laundry detergent formulation of claim 3 , wherein a is 2 to 25 in an average of 70 to 100 mol % of the occurrences of formula (II) in the cleaning booster.

5 . The liquid laundry detergent formulation of claim 3 , wherein 70 to 100 mol % of the R 1 groups in the cleaning booster of formula (II) are of formula (IIa)
R 5 —O—[CH 2 CH(R 6 )O] y —*  (IIa)

wherein the * indicates the point of attachment to formula (I); wherein R 5 is selected from the group consisting of a hydrogen and a C 1-22 alkyl group; wherein each R 6 is independently selected from the group consisting of a hydrogen and a C 1-2 alkyl group; and wherein y is 2 to 25.

6 . The liquid laundry detergent formulation of claim 3 , wherein 70 to 100 mol % of the R 1 groups in the cleaning booster of formula (II) are of formula (IIb)
R 7 —O-(EO) h —(PO) i -(EO) j —*  (IIb)

wherein the * indicates the point of attachment to formula (I); wherein R 7 is selected from the group consisting of a hydrogen and a C 1-12 alkyl group; wherein EO is an ethylene oxide group; wherein PO is a propylene oxide group; wherein h is 0 to 5; wherein i is 0 to 10; wherein j is 2 to 25; and wherein h+i+j is 2 to 25.

7 . The liquid laundry detergent formulation of claim 6 , wherein b is 2 and wherein x is 1.

8 . The liquid laundry detergent formulation of claim 7 , wherein R is a methyl group.

9 . The liquid laundry detergent formulation of claim 8 , wherein R 7 is a C 1-4 alkyl group; wherein h is 0 to 1; wherein i is 2 to 5; and j is 2 to 6.

10 . A method of washing a fabric article, comprising:
providing a soiled fabric article; providing a liquid laundry detergent formulation according to claim 1 ; providing a wash water; and applying the wash water and the liquid laundry detergent formulation to the soiled fabric to provide a cleaned fabric article.

Assignees

• Dow Global Technologies Llc
• Rohm & Haas

Inventors

• Izmitli Aslin
• Mitchell Michael C
• Pulukkody Randara
• Sathiosatham Muhunthan
• Tulchinsky Michael
• Wasserman Eric

Classifications

• C11D3/3707 Primary

  Polyethers, e.g. polyalkyleneoxides · CPC title

• C11D2111/12

  Soft surfaces, e.g. textile · CPC title

• C11D3/3723 Primary

  Polyamines or polyalkyleneimines · CPC title