Mitsubishi Pencil Kabushiki Kaisha

Suguru Yazawa

Takahiro Osada

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&#xb0; C. or lower and are solid at room temperature.

Marking pen with excellent cap-off performance

A solid adhesive composition which has an excellent applying performance even after an applying part of the solid adhesive is left to stand in the atmosphere for a long time and which is excellent in a cap-off performance and which comprises at least an adhesive component, a gelling agent and a solvent, wherein contained in the above composition are at least one selected from the group consisting of waxes such as paraffin waxes and olefin waxes which are a solid at room temperature and have a solubility of 20% or less in the solvent at room temperature and/or a substance absorbing moisture contained at least in the atmosphere and/or the adhesive composition to form an evaporation-inhibiting film.

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Gunma, Japan

Suguru Yazawa