Thiophene azo dyes and laundry care compositions containing the same

Patent metadata

Field	Value
Publication number	US-9487740-B2
Application number	US-201514608292-A
Country	US
Kind code	B2
Filing date	Jan 29, 2015
Priority date	Nov 12, 2010
Publication date	Nov 8, 2016
Grant date	Nov 8, 2016

Abstract

This application relates to thiophene azo dyes for use as hueing agents, laundry care compositions comprising such thiophene azo dyes, processes for making such thiophene azo dyes, and laundry care compositions and methods of using the same. The thiophene azo dyes contain a formally charged moiety and are generally comprised of at least two components: at least one chromophore component and at least one polymeric component. Suitable chromophore components generally fluoresce blue, red, violet, or purple color when exposed to ultraviolet light, or they may absorb light to reflect these same shades. These thiophene azo dyes are advantageous in providing a hueing effect, for example, a whitening effect to fabrics, while not building up over time and causing undesirable blue discoloration to the treated fabrics. The thiophene azo dyes are also generally stable to bleaching agents used in laundry care compositions.

First claim

What is claimed is:

1. A laundry care composition comprising:
a) a thiophene azo dye containing a formally charged moiety, with the proviso that the dye does not comprise a meta-bis(2-hydroxy-3-trimethylammoniumpropyl) amino tolyl group; and
b) a laundry care ingredient

wherein said thiophene azo dye has the following formula:

wherein the moiety A is selected from a group consisting of the moiety No. 23

a =1, R 6 is selected from the group consisting of entry No. 5;

R 6 Substituent - Identity and Position on Aniline Ring

No.
1
2
3
4

5

—Me;

and R 4 and R 5 grouping is selected from the group consisting of entry No. 13

R 4 and R 5 Groupings

No.
R 4
R 5

65
Ethyl

wherein Z is a charge balancing counterion.

2. The laundry care composition of claim 1 , said laundry care composition comprising, based on total laundry care composition weight, less than 15% builder.

3. The laundry care composition of claim 1 , said laundry care composition is a multi-compartment unit dose product.

4. The laundry care composition of claim 1 , said laundry care composition comprising, based on total laundry care composition weight, a total of no more than 20% water.

5. The laundry care composition of claim 1 , said laundry care composition comprising, based on total laundry care composition weight, from about 10% to about 70% of a water-miscible organic solvent having a molecular weight of greater than 70 Daltons.

6. The laundry care composition of claim 1 , said laundry care composition comprising, based on total laundry care composition weight, a perfume microcapsule comprising a core and a shell that encapsulates said core, said perfume microcapsule having a D[4,3] average particle of from about 0.01 microns to about 200 microns.

7. A method of treating and/or cleaning a surface or fabric comprising the steps of optionally washing and/or rinsing said surface or fabric, contacting said surface or fabric with a laundry care composition of claim 1 , then optionally washing and/or rinsing said surface and/or fabric then optionally letting said surface or fabric to dry and/or actively drying said surface or fabric.

Assignees

• Procter & Gamble

Inventors

• Miracle Gregory Scot
• Mahaffey Jr Robert Linn
• Hong Xiaoyong Michael
• Torres Eduardo
• Valenti Dominick Joseph

Classifications

• C11D17/041

  Compositions releasably affixed on a substrate or incorporated into a dispensing means · CPC title

• C09B44/14

  1,2-Diazoles or hydrogenated 1,2-diazoles {; Pyrazolium; Indazolium} · CPC title

• C11D3/505

  encapsulated or adsorbed on a carrier, e.g. zeolite or clay · CPC title

• C09B44/04

  from coupling components containing amino as the only directing group · CPC title

• C09B44/107

  characterised by a cyclammonium five-membered specific ring not mentioned hereafter: thiadiazolium, (benz)oxazolium · CPC title