C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 11/18 (2006.01) B43K 5/00 (2006.01) B43K 7/00 (2006.01) C09D 11/16 (2006.01)
Patent
CA 2291567
A rubber-erasable aqueous ink for a writing material composition contains water, a water-soluble polar solvent, and a particulate adhesive colored resin. The particulate adhesive colored resin contains a pigment and an adhesive resin which is adhesive on at least a part of a surface thereof. The particulate adhesive colored resin has a particle diameter distribution such that the amount of particles having a particle diameter of from 2 µm to 20 µm is not less than 70% by weight of all the particles.
Hayashi Hiroyuki
Kito Tsutomu
Nakamura Hiroyuki
Riches Mckenzie & Herbert Llp
The Pilot Ink Co. Ltd.
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