Amphoteric fluorescent whitening agents

Bleaching and dyeing; fluid treatment and chemical modification – Dye or potential dye composition – additive – treatment,... – Fluorescent dye – e.g. – stilbene – benzimidazole – benzoxazole,...

Reexamination Certificate

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Details

C510S461000

Reexamination Certificate

active

10534315

ABSTRACT:
The present invention provides novel bis-triazinylaminostilbene amphoteric fluorescent whitening agents, comprising both individual components and mixtures thereof, a process for their preparation, intermediates useful for their prepartion and use of the fluorescent whitening agents for the fluorescents whitening of paper.

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patent: 02/055646 (2002-07-01), None

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