Bleaching and dyeing; fluid treatment and chemical modification – Dye or potential dye composition – additive – treatment,... – Fluorescent dye – e.g. – stilbene – benzimidazole – benzoxazole,...
Reexamination Certificate
2007-07-24
2007-07-24
Hardee, John R. (Department: 1751)
Bleaching and dyeing; fluid treatment and chemical modification
Dye or potential dye composition, additive, treatment,...
Fluorescent dye, e.g., stilbene, benzimidazole, benzoxazole,...
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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Fletcher Ian John
Rohringer Peter
Scheffler Goetz
Ciba Specialty Chemicals Corporation
Hardee John R.
Loggins Shiela A.
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