# US 12,006,490 B2 · Liquid laundry detergent formulation

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- Number: US 12,006,490 B2
- Document ID: US12006490B2
- Status: Granted
- Kind: B2
- Application number: 17/602,872
- Filed: 2020-05-28
- Published: 2022-05-26
- Granted: 2024-06-11
- Earliest claimed: 2019-06-14
- Assignees: Dow Global Technologies LLC; Rohm and Haas Company
- Applicants: Dow Global Technologies LLC; Rohm and Haas Company
- Inventors: Asghar A. Peera; Stephen J. Donovan; Marianne Creamer
- Web page: https://patentgrep.com/patent/US12006490B2

## CPC

- C11D 3/3776: {Heterocyclic compounds, e.g. lactam}
- C11D 1/831: of sulfonates with ethers of polyoxyalkylenes without phosphates
- C11D 1/22: derived from aromatic compounds
- C11D 1/29: Sulfates of polyoxyalkylene ethers
- C11D 2111/12: Soft surfaces, e.g. textile
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL

## Abstract

A liquid laundry detergent formulation is provided, comprising: a liquid carrier; a cleaning surfactant; and a cleaning booster polymer, wherein the cleaning booster polymer has structural units of a monoethylenically unsaturated carboxylic acid monomer; structural units of an ethylenically unsaturated monomer of formula (I) optionally, structural units of an ethylenically unsaturated monomer of formula (III) and optionally, structural units of an ethylenically unsaturated monomer of formula (IV)

## Claims

### Claim 1

A liquid laundry detergent formulation, comprising:
a liquid carrier;
a cleaning surfactant; and
a cleaning booster polymer, wherein the cleaning booster polymer, comprises:
(a) 60 to 95 wt %, based on dry weight of the cleaning booster polymer, of structural units of a monoethylenically unsaturated carboxylic acid monomer;
(b) 5 to 40 wt %, based on dry weight of the cleaning booster polymer, of structural units of an ethylenically unsaturated monomer of formula (I)
wherein X is selected from the group consisting of an oxygen atom and a sulfur atom;
wherein R1 is a C2-4 alkylene group;
wherein R2 is selected from the group consisting of a 2-(2-carboxyacrylamide)ethyl group, a vinyl group, an allyl group, an isopropenyl group, an acryloyl group, a methacryloyl group, a 2-hydroxy-3-(allyloxy)propyl group and a functional group of formula (II)
R4—Y—R3— (II)
wherein R3 is a C1-5 alkylene group;
wherein Y is selected from the group consisting of an —O— and an —NR5—, where R5 is selected from the group consisting of a hydrogen and a C1-8 alkyl group; and
wherein R4 is selected from the group consisting of a 2-hydroxy-3-(allyloxy)propyl group, a vinyl group, a methacryloyl group, an acryloyl group and a methacryloyloxyaceto group;
(c) 0 to 20 wt %, based on dry weight of the cleaning booster polymer, of structural units of an ethylenically unsaturated monomer of formula (III)
wherein A is selected from the group consisting of an —O— and an —NR5—;
wherein each R6 is independently selected from the group consisting of a —CH2CH2O— group, a —CH2CH(CH3)O— group and a —CH2CH(CH2CH3)O— group; and
wherein b is 2 to 20;
(d) 0 to 5 wt %, based on dry weight of the cleaning booster polymer, of structural units of an ethylenically unsaturated monomer of formula (IV)
wherein each R7 is independently selected from a —C14 alkyl group; and
wherein each R8 is independently selected from the group consisting of a hydrogen and a methyl group.

### Claim 2 (depends on 1)

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 polymer.

### Claim 3 (depends on 1)

The liquid laundry detergent formulation of claim 1, wherein the liquid carrier comprises water.

### Claim 4 (depends on 3)

The liquid laundry detergent formulation of claim 3, wherein the cleaning booster polymer has a weight average molecular weight, MW, of 500 to 100,000 Daltons.

### Claim 5 (depends on 4)

The liquid laundry detergent formulation of claim 4, wherein the structural units of monoethylenically unsaturated carboxylic acid monomer are structural units of formula (V)
wherein each R9 is independently selected from a hydrogen and a —CH3 group.

### Claim 6 (depends on 5)

The liquid laundry detergent formulation of claim 5, wherein each R9 is a hydrogen in 50 to 100 mol % of the structural units of formula (V) in the cleaning booster polymer.

### Claim 7 (depends on 6)

The liquid laundry detergent formulation of claim 6, wherein the ethylenically unsaturated monomer of formula (I) is of formula (Ia)
wherein Y is selected from the group consisting of an —O— and an —NR5—; wherein R1 is selected from the group consisting of a —CH2CH2CH2— group, a —CH(CH3)CH2— group, and a —CH2CH2— group; wherein R3 is a C1-5 alkylene group; and wherein X is selected from the group consisting of an oxygen atom and a sulfur atom.

### Claim 8 (depends on 7)

The liquid laundry detergent formulation of claim 7, wherein Y is an —O—; wherein R1 is a —CH2CH2— group; wherein R3 is a C2-4 alkylene group and wherein X is an oxygen.

### Claim 9 (depends on 8)

The liquid laundry detergent formulation of claim 8, wherein R3 is a —CH2CH2— group.

### Claim 10 (depends on 1)

A method of washing a fabric article of the present invention, 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.
