Water-based ink

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...

Reexamination Certificate

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Details

C524S560000, C524S577000, C524S590000, C524S601000, C523S160000

Reexamination Certificate

active

10813274

ABSTRACT:
A process for preparing an aqueous dispersion of a pigment, comprising kneading a mixture containing a pigment, a polymer having a salt-forming group, a neutralizing agent for neutralizing the polymer having a salt-forming group, an organic solvent and water, wherein the concentration of the solid matter is 50 to 80% by weight; adding water and/or an organic solvent to the resulting kneaded mixture to dilute the mixture; and dispersing the solid matter in the resulting diluted mixture; and a water-based ink comprising the aqueous dispersion of a pigment.

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patent: 6412940 (2002-07-01), Inoue et al.
patent: 6960622 (2005-11-01), Nakano
patent: 9-124968 (1997-05-01), None
patent: 2004-51777 (2004-02-01), None
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Machine Translation of JP 2003-226832 A (2003).
Patent Abstracts of Japan, JP 8-183920, Jul. 16, 1996.
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Patent Abstracts of Japan, JP 2001-271008, Oct. 2, 2001.
Patent Abstracts of Japan, JP 2003-226831, Aug. 15, 2003.
Patent Abstracts of Japan, JP 2003-226832, Aug. 15, 2003.
Patent Abstracts of Japan, JP 2004-026927, Jan. 29, 2004.

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