Thiophene azo dyes and laundry care compositions containing the same
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United States of America Patent
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May 19, 2020
Grant Date -
Nov 14, 2019
app pub date -
Jul 26, 2019
filing date -
Nov 12, 2010
priority date (Note) -
In Force
status (Latency Note)
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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.

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- 15 United States
- 10 France
- 8 Japan
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- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
THE PROCTER & GAMBLE COMPANY | ONE PROCTER & GAMBLE PLAZA CINCINNATI OHIO 45202 45202 |
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- [Patents Count]
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Hong, Xiaoyong Michael | Greer, US | 27 | 214 |
Mahaffey,, Jr Robert Linn | Spartanburg, US | 6 | 36 |
Miracle, Gregory Scot | Hamilton, US | 244 | 1609 |
Torres, Eduardo | Boiling Springs, US | 135 | 983 |
Valenti, Dominick Joseph | Greenville, US | 14 | 94 |
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