Ink for an aqueous ballpoint pen using oil-in-water type resin emulsion and an aqueous ballpoint pen using the ink
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United States of America Patent
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N/A
Issued Date -
Oct 27, 2005
app pub date -
Apr 14, 2005
filing date -
Apr 26, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The problem is to provide ink for a ballpoint pen which enables to write well on a flat and smooth, and impermeable surface such as metal, glass, plastic material and the like and a ballpoint pen using this ink. Ink for an aqueous ballpoint pen, of viscosity in the range of 5 through 30 mPa.s at 20.degree. C. and using an oil-in-water type resin emulsion, including a solvent of water and alcohol-based solvent of 0.5 kPa to 10 kPa vapor pressure at 20.degree. C., pigment and water-soluble resin, with an aggregate concentration of solid contents of said water-soluble resin and oil-in-water type resin emulsion being 5.0 to 30.0 mass % against total composition of the ink, and a ballpoint pen using the ink.
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