Ink composition for oil-based ballpoint pen and oil-based...

Details Ink composition for oil-based ballpoint pen and oil-based... Ink composition for oil-based ballpoint pen and oil-based...

2005-05-31

2005-05-31

Huson, Gregory L. (Department: 3751)

Coating implements with material supply

Including ball, roller or endless-belt tool

Ball

C106S031260, C106S031280, C106S031850, C106S031890

Reexamination Certificate

active

06899487

ABSTRACT:
An ink composition for oil-based ballpoint pens is comprised of a solvent, a colorant and an anti-corrosive wetting agent. The solvent is a water containing water-in-oil-type organic solvent. The colorant is a combination of a dye and a pigment, wherein the pigment is dispersed in the ink with a nonionic surfactant. The anti-corrosive wetting agent is a phosphate based surfactant. An oil-based ballpoint pen using the above ink is also included.

REFERENCES:
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patent: 6390710 (2002-05-01), Miyamoto
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patent: 2001-294796 (2001-10-01), None
patent: WO-95/11283 (1995-04-01), None

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