Solvent-based pen inks
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United States of America Patent
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-
Nov 21, 2000
Grant Date -
N/A
app pub date -
Feb 3, 1999
filing date -
Feb 3, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
Solvent-based pen inks are provided. The inks include an acid dye and a solvent system that includes an oxa acid solvent, the oxa acid solvent functioning as the primary solvent for the acid dye. Preferred inks are eradicable, and include an acid dye that decolorizes if contacted with a decolorizing compound.
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