Laundry care compositions, methods, and test kits for determining authenticity

Patent metadata

Field	Value
Publication number	US-11634663-B2
Application number	US-201816157114-A
Country	US
Kind code	B2
Filing date	Oct 11, 2018
Priority date	Oct 12, 2017
Publication date	Apr 25, 2023
Grant date	Apr 25, 2023

Abstract

The present disclosure provides a laundry care composition having at least one laundry care ingredient and at least one leuco composition conforming to Formula (I):Ar1Ar2Ar3CH  (I)wherein Ar2 and Ar3 are independently a carbocyclic aryl or heteroaryl, and Ar1 is selected from the group consisting of: unsubstituted phenyl, electron deficient carbocyclic aryl, and heteroaryl. The present disclosure also provides a method of determining an authentic laundry care composition and test kits for detecting authentic laundry care compositions.

First claim

What is claimed is:

1. A laundry care composition comprising at least one laundry care ingredient, an antioxidant and at least one leuco composition conforming to Formula (I):
Ar 1 Ar 2 Ar 3 CH  (I)

wherein Ar 2 and Ar 3 are independently a carbocyclic aryl or heteroaryl, and wherein Ar 1 is an unsubstituted phenyl and free of an electron contribution to the phenyl from any substituent, wherein the compositions undergo color change only when contacted with a sufficient triggering agent.

2. The laundry care composition of claim 1 , wherein at least one of Ar 2 and Ar 3 is a phenyl ring substituted with an electron donating group.

3. The laundry care composition of claim 2 , wherein the electron-donating group is a substituted amine covalently bonded to the phenyl ring at a position para to the carbon atom connecting the three Ar groups.

4. The laundry care composition of claim 3 , wherein Ar 2 and Ar 3 are phenyl rings with independently selected substituted amines covalently bonded to each phenyl ring at a position para to the carbon atom connecting the three Ar groups.

5. The laundry care composition of claim 4 , wherein the substituted amines conform to the formula —NR 4 R 5 , and wherein each R 4 and R 5 are independently selected from the group consisting of: H, C 1-16 branched alkyl, C 1-16 linear alkyl, C 1-16 substituted branched alkyl, C 1-16 substituted linear alkyl, C 7-16 substituted alkaryl, C 7-16 unsubstituted alkaryl, polyoxyalkylene, and mixtures thereof.

6. The laundry care composition of claim 5 , wherein at least one R 4 and R 5 is a polyoxyalkylene comprising 3 to 60 ethylene oxide repeating units.

7. The laundry care composition of claim 6 , wherein R 4 and R 5 are polyoxyalkylenes comprising 3 to 60 ethylene oxide repeating units.

8. The laundry care composition of claim 7 , wherein R 4 and R 5 are polyoxyalkylenes comprising 10 to 25 ethylene oxide repeating units.

9. The laundry care composition of claim 8 , wherein the laundry care ingredient is selected from the group consisting of surfactants, builders, chelating agents, dye transfer inhibiting agents, dispersants, enzymes, enzyme stabilizers, catalytic materials, bleach activators, polymeric dispersing agents, clay soil removal agents, anti-redeposition agents, brighteners, suds suppressors, dyes, perfume, perfume delivery systems, structurants, fabric softeners, carriers, hydrotropes, processing aids, pigments, antioxidants and mixtures thereof.

Assignees

• Procter & Gamble

Inventors

• Miracle Gregory Scot
• Ditullio Jr Daniel Dale
• Dey Sanjeev Kumar
• Qin Haihu

Classifications

• C11D3/3481

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

• C11D3/3707

  Polyethers, e.g. polyalkyleneoxides · CPC title

• C11D3/30

  Amines; Substituted amines {; Quaternized amines} · CPC title

• C09B11/12

  without any OH group bound to an aryl nucleus · CPC title

• C11D3/2096 Primary

  Heterocyclic compounds · CPC title