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US 2010/0163799 A1Published application
Correcting fluid with drying indicator
AssigneeSociete BIC
InventorCarine Bethouart
Life of this patent
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Abstract
A correcting fluid with a colored drying indicator that includes as fluorescent dye, sodium 8-hydroxy-1,3,6-pyrenetrisulfonate and a good solvent for the fluorescent dye, in which the solubility of the fluorescent dye at 20° C. is at least equal to 0.1 g/l, and, a poor solvent for the fluorescent dye, in which the solubility of the fluorescent dye is less than or equal to 0.01 g/l at 20° C., the poor solvent being miscible with the good solvent for the fluorescent dye.
Claims10
A correcting fluid with a colored drying indicator, comprising:
- (a) as fluorescent dye, sodium 8-hydroxy-1,3,6-pyrenetrisulfonate and
- (b) a good solvent for the fluorescent dye, in which the solubility of the fluorescent dye at 20° C. is at least equal to 0.1 g/l, and,
- (c) a poor solvent for the fluorescent dye, in which the solubility of the fluorescent dye is less than or equal to 0.01 g/l at 20° C., the poor solvent being miscible with the good solvent (b) for the fluorescent dye.
Dependencies are inferred from the claim text.