Composition comprising hueing agent

Patent metadata

Field	Value
Publication number	US-12435299-B2
Application number	US-202418669663-A
Country	US
Kind code	B2
Filing date	May 21, 2024
Priority date	Mar 2, 2020
Publication date	Oct 7, 2025
Grant date	Oct 7, 2025

Abstract

This invention relates to a laundry care composition comprising a laundry care ingredient and a polymeric thiophene hueing agent.

First claim

We claim:

1. A laundry care composition comprising (i) a laundry care ingredient and (ii) 0.0001-1.0 wt % of a polymeric thiophene hueing agent of Formula (III):

2. The laundry care composition of claim 1 , wherein the polymeric thiophene hueing agent is present in an amount of 1-10000 ppm.

3. The laundry care composition of claim 1 , wherein the polymeric thiophene hueing agent is present in an amount of 1-500 ppm.

4. The laundry care composition of claim 1 , which further contains at least one of the following structures, or salts thereof:

5. The laundry care composition of claim 1 , wherein the laundry care ingredient is selected from cationic polymers, surfactants, builders, chelating agents, dye transfer inhibiting agents, dispersants, enzymes, enzyme stabilizers, catalytic materials, bleach activators, hydrogen peroxide, sources of hydrogen peroxide, preformed peracids, polymeric dispersing agents, clay soil removal/anti-redeposition agents, brighteners, suds suppressors, dyes, pigments, coloring agents, perfumes, perfume delivery systems, structure elasticizing agents, fabric softeners, carriers, hydrotropes, and processing aids.

6. A method of increasing a whitening effect or index on a textile article comprising the steps of (i) treating the textile article with the laundry care composition of claim 1 , and (ii) rinsing and drying the treated textile article.

7. The method of claim 6 , wherein step (i) is bleach-free.

8. A process for measurably improving a whitening effect on cellulose-containing textile articles, wherein the improvement is present in an amount that is greater than the amount observed on polyester-containing textile articles, wherein the process comprises the steps of:
(a) Exposing a cellulose-containing textile substrate and a polyester-containing textile substrate to the laundry care composition of claim 1 , and
(b) Measuring the whitening effect via evaluation of the whiteness index of each textile article.

9. A textile article comprising:
(a) a majority by weight of cellulose fiber, and
(b) the laundry care composition of claim 1 .

Assignees

• Milliken & Co

Inventors

• Freund Wesley A
• Lawson Richard
• Dey Sanjeev K
• Peevy Nolan

Classifications

• C11D2111/12

  Soft surfaces, e.g. textile · CPC title

• C09B29/3682

  containing only sulfur as heteroatom · CPC title

• C11D3/349 Primary

  additionally containing nitrogen atoms, e.g. nitro, nitroso, amino, imino, nitrilo, nitrile groups containing compounds or their derivatives or thio urea · CPC title

• C09B43/00

  Preparation of azo dyes from other azo compounds · CPC title

• C11D3/3481

  containing sulfur in a heterocyclic ring, e.g. sultones or sulfolanes · CPC title