D - Textiles – Paper – 21 – C
Patent
D - Textiles, Paper
21
C
D21C 9/10 (2006.01) C02F 1/68 (2006.01) C02F 1/72 (2006.01) C11D 3/386 (2006.01) C11D 7/26 (2006.01) D21C 5/00 (2006.01)
Patent
CA 2514475
An oxidation and/or bleaching system is disclosed, comprising: a) oxidoreductases such as laccases and/or peroxidases applied individually or in combination, in the presence of the corresponding co-substrate 0<sb>2</sb>, H<sb>2</sb>0<sb>2</sb>, organic peroxides, per-acids etc., for the activation of compounds of the class of oxohydrocarbons, the class of urazoles and hydrazides, the class of hydantoins and the class of nitriles (cyano) compounds and b) additional carbonyl compounds (ketones, aldehydes) are applied which can form active oxygen species, such as dioxiranes, dioxetanes and peroxy compounds, amongst others, or other reactive compounds, or transition states such as radicals, cationic radicals, anionic radicals or reactive (redox-active) neutral compounds with the activated compounds.
L'invention concerne un système d'oxydation et/ou de blanchiment composé : a) d'oxydo-réductases telles que des laccases et/ou des peroxydases utilisées individuellement ou en combinaison en présence de leurs cosubstrats respectifs 0¿2?, H¿2?0¿2?, de peroxydes organiques, de peracides, etc. pour l'activation de composés de la famille des oxocarbones, de la famille des urazoles et des hydrazides, de la famille des hydantoïnes et de la famille des composés (cyan) nitriles et b) de composés carbonyles supplémentaires (cétones, aldéhydes) pouvant former avec les composés activés des espèces oxygénées actives telles que des dioxyranes, des dioxétanes, des composés peroxy etc. et d'autres composés réactifs ou états de transition tels que des radicaux, des radicaux cations, des radicaux anions ou des composés neutres réactifs (redox-actifs).
Call Krimhild
Ridout & Maybee Llp
LandOfFree
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