Compositions and methods for surface treatment with lipases
US-9404070-B2 · Aug 2, 2016 · US
Solid free-flowing particulate laundry detergent composition
US12516274B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12516274-B2 |
| Application number | US-202318333763-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 13, 2023 |
| Priority date | Jun 27, 2022 |
| Publication date | Jan 6, 2026 |
| Grant date | Jan 6, 2026 |
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- Title
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- Abstract
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Abstract
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A solid free-flowing particulate laundry detergent composition, wherein the composition including a detersive surfactant, an iron-based bleach catalyst and a peroxygen-based bleach, and the composition having an equilibrium pH at 20° C. at a concentration of 10 g/l in deionized water of 10.0 or less.
First claim
Opening claim text (preview).
What is claimed is: 1 . A solid free-flowing particulate laundry detergent composition, wherein the composition comprises: (a) detersive surfactant; (b) iron-based bleach catalyst having the following structure: and (c) peroxygen-based bleach, wherein the composition has an equilibrium pH at about 20° C. at a concentration of about 10 g/l in deionized water of from about 8.5 to about 9.0. 2 . A composition according to claim 1 , wherein the peroxygen-based bleach is percarbonate bleach. 3 . A composition according to claim 1 , wherein the peroxygen-based bleach is pre-formed peroxyacid. 4 . A composition according to claim 1 , wherein the composition further comprises a bleach activator. 5 . A composition according to claim 1 , wherein the composition further comprises tetraacetyl ethylenediamine. 6 . A composition according to claim 1 , wherein the composition further comprises an imine-based bleach catalyst and/or an iminium-based bleach catalyst. 7 . A composition according to claim 1 , wherein the composition further comprises citric acid. 8 . A composition according to claim 1 , wherein the composition is substantially free of sodium carbonate. 9 . A composition according to claim 1 , wherein the detersive surfactant comprises an anionic detersive surfactant. 10 . A composition according to claim 1 , wherein the detersive surfactant comprises an anionic detersive surfactant selected from alkyl sulphate and/or alkyl benzene sulphonate. 11 . A composition according to claim 1 , wherein the composition further comprises a dye transfer inhibitor. 12 . A composition according to claim 1 , wherein the detersive surfactant comprises an non-ionic detersive surfactant. 13 . A composition according to claim 1 , wherein the composition further comprises hueing dye. 14 . A composition according to claim 1 , wherein the composition further comprises chelant.
Assignees
Inventors
Classifications
Bleach activators or bleach catalysts · CPC title
Nitrogen-containing compounds · CPC title
Sulfates of polyoxyalkylene ethers · CPC title
Anionic compounds {(C11D1/002, C11D1/004, C11D1/008 take precedence)} · CPC title
Dyes {; Pigments} · CPC title
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- What does patent US12516274B2 cover?
- A solid free-flowing particulate laundry detergent composition, wherein the composition including a detersive surfactant, an iron-based bleach catalyst and a peroxygen-based bleach, and the composition having an equilibrium pH at 20° C. at a concentration of 10 g/l in deionized water of 10.0 or less.
- Who is the assignee on this patent?
- Procter & Gamble
- What technology area does this patent fall under?
- Primary CPC classification C11D3/3951. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 06 2026 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).