WATER-BASED INK COMPOSITION FOR BALLPOINT PEN
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United States of America Patent
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Issued Date -
Apr 11, 2013
app pub date -
Jun 18, 2010
filing date -
Jun 18, 2010
priority date (Note) -
Abandoned
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Abstract
Provided is a novel ink composition for a ballpoint pen such that the ink composition combines the strength of water-based ink for ballpoint pens and oil-based ink for ballpoint pens. Specifically provided is a water-based ink composition for ballpoint pens, wherein an oily phase containing an oily solution obtained by dissolving a dye in an organic solvent is contained, as an oil-in-water emulsion, in an aqueous phase comprising a pigment dispersant.
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