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US 2024/0263103 A1Published application
N-substituted 2-(6-hydroxy-3-oxo-3h-xanthene-9-yl)benzamides as photoactivators in detergents
AssigneeHenkel AG & Co. KGaA
InventorsChristian KROPF, Nadia LEDERMANN
Life of this patent
Estimating the term…
Abstract
N-substituted 2-(6-hydroxy-3-oxo-3H-xanthen-9-yl) benzamides are capable of generating bleach-active species when irradiated with visible light, these species leading to an enhanced bleaching power during the washing of textiles.
Claims13
A use of N-alkyl-substituted 2-(6-hydroxy-3-oxo-3H-xanthen-9-yl) benzamides having the general formula (I),
- where R is an optionally substituted linear or branched alkyl radical having 8 to 16 C atoms, each R1 independently is F, Cl, Br or I, and each R2 independently is H, F, Cl, Br or I, as photobleaching agent to remove stains from textile materials.
A washing agent containing N-alkyl-substituted 2-(6-hydroxy-3-oxo-3H-xanthen-9-yl) benzamide of the general formula (I),
- where R is an optionally substituted linear or branched alkyl radical having 8 to 16 C atoms, each R1 independently represents F, Cl, Br or I, and each R2 independently is H, F, Cl, Br or I.
A method for removing stains from textile materials using N-alkyl substituted 2-(6-hydroxy-3-oxo-3H-xanthen-9-yl) benzamide of the general formula (I),
- where R is an optionally substituted linear or branched alkyl radical having 1 to 20 C atoms, each R1 independently is F, Cl, Br or I, and each R2 independently is H, F, Cl, Br or I, in an aqueous liquid, which contains the soiled textile materials that are in need of a wash, with irradiation of the aqueous washing liquor with visible light, as photobleaching agent to remove stains from textile materials.
Dependencies are inferred from the claim text.