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
2007-11-06
2007-11-06
Wu, David W. (Department: 1713)
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...
C526S332000, C526S333000, C526S334000, C528S425000, C523S161000, C428S913000
Reexamination Certificate
active
11199225
ABSTRACT:
The present invention provides an ink composition containing a pigment dispersed uniformly in a solvent and a block polymer having an ionic functional group, an image-forming method and an image-forming apparatus employing the ink composition.The composition comprises a pigment, a solvent and a polymer having an ionic functional group, an acid residue, or a base residue at the terminal. The polymer having an ionic functional group, an acid residue, or a base residue at the terminal is a block polymer of ABX type having A, B, and X segments, wherein A and B are respectively a block segment having a vinyl ether structure as the repeating unit, and X is a terminal segment having an ionic functional group, an acid residue, or an base residue.
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Aoshima, S.; Hashimoto, K.J. POLYM. Chem., A: Polym. Chem. 2001, 38, 746-750.
Ikegami Masayuki
Nakazawa Ikuo
Sato Koichi
Suda Sakae
Lee Rip A.
Morgan & Finnegan L.L.P.
Wu David W.
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