Laundry care compositions containing dyes
US-2015000048-A1 · Jan 1, 2015 · US
Thiophene azo dyes and laundry care compositions containing the same
US8979946B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8979946-B2 |
| Application number | US-201414222705-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 24, 2014 |
| Priority date | Nov 12, 2010 |
| Publication date | Mar 17, 2015 |
| Grant date | Mar 17, 2015 |
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Abstract
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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
Opening claim text (preview).
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…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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Frequently asked questions
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- What does patent US8979946B2 cover?
- 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 …
- Who is the assignee on this patent?
- Procter & Gamble
- What technology area does this patent fall under?
- Primary CPC classification C11D3/42. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).