IP Library Granted Patent US 12,435,299
Granted Patent B2
US 12,435,299 · App. 18/669,663 · Granted Oct 7, 2025

Composition comprising hueing agent

Inventors: Wesley A. Freund (Simpsonville, SC); Richard Lawson (Greer, SC); Sanjeev K. Dey (Spartanburg, SC); Nolan Peevy (Roebuck, SC)
Assignee: Milliken & Company
C11D3/42C09B29/3682C11D3/349C11D2111/12
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Quick Facts
Patent No.
US 12,435,299
App. No.
18/669,663
Granted
Oct 7, 2025
Kind
B2
Abstract

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

Claims (13)

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 .

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 4, 2024
From: FREUND, WESLEY A.; LAWSON, RICHARD; DEY, SANJEEV K.; PEEVY, NOLAN
To: MILLIKEN & COMPANY
Reel/Frame 067617/0356 →
Continuity (3)
Continuation 17156814 · Jan 25, 2021
Provisional Application 62983880 · Mar 2, 2020
Related Publication 20240301330A1 · Sep 12, 2024
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