Marking pen with excellent cap-off performance

Details Marking pen with excellent cap-off performance Marking pen with excellent cap-off performance

2005-10-18

2005-10-18

Walczak, David J. (Department: 3751)

Coating implements with material supply

Material flows through porous tool

Wick feed from within reservoir to tool

C401S198000

Reexamination Certificate

active

06955491

ABSTRACT:
A marking pen having an excellent cap-off performance which comprises at least a colorant, a solvent and a resin and, if necessary, an erasability-providing agent as ink components and in which a pen tip comprising a fibrous feed or a plastic feed is coated with a coating agent comprising a substance providing a cap-off property, wherein the above coating agent comprises petroleum waxes comprising hydrocarbons having side chains as a principal component (50% by weight or more). Preferably, the above petroleum waxes comprising hydrocarbons having side chains as a principal component have a melting point of 63° C. or lower and are solid at room temperature.

REFERENCES:
patent: 4256494 (1981-03-01), Yamamoto et al.
patent: 2314852 (1998-01-01), None
patent: 1-35028 (1989-07-01), None
patent: 11-335612 (1999-12-01), None
patent: 00/37265 (2000-06-01), None

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