Compositions: coating or plastic – Coating or plastic compositions – Marking
Patent
1998-02-19
1999-10-05
Klemanski, Helene
Compositions: coating or plastic
Coating or plastic compositions
Marking
106 3133, 106 3137, 106 3158, 106 3164, 106 3165, 106 3169, 106 3186, 106 3188, C09D 1116
Patent
active
059617047
ABSTRACT:
The present invention provides an aqueous marking pen ink composition for writing board which gives writing that can be easily erased by wiping with a dry erasing material without staining on the surface of the writing board even if the writing is half-dried, not to mention after dried on the surface of the writing board. The novel aqueous marking pen ink composition for writing board comprising as essential components a colorant, a resin, a separating agent and water, wherein the colorant comprises microcapsules containing a coloring substance selected from the group consisting of oil-soluble dye, disperse dye and pigment and oil medium which dissolves or disperses a coloring substance. Writing drawn on the surface of a writing board with the aqueous marking pen ink for writing board according to the present invention can be easily and completely erased by wiping with a dry erasing material regardless of whether it is half-dried shortly after drawn on the writing board or after thoroughly dried.
REFERENCES:
patent: 5217255 (1993-06-01), Lin et al.
patent: 5661197 (1997-08-01), Villiger et al.
patent: 5852073 (1998-12-01), Villiger et al.
Database WPI, Section Ch, Week 8933, Derwent Publications, Ltd., London, GB; Class G02, AN 89-237031, XP002067123 & JP 01 170 672 A (Canon KK), Jul. 5, 1989, Abstract.
Database WPI, Section CH, Week 9025, Derwent Publications Ltd., London, GB; Class A18, AN 90-189778, XP002067124 & JP 02 124 985 A (Kodera M), May 14, 1990, Abstract.
Hayashi Hiroyuki
Nakamura Hiroyuki
Klemanski Helene
The Pilot Ink Co., Ltd.
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