Electrostatic inkjet ink composition

Details Electrostatic inkjet ink composition Electrostatic inkjet ink composition

2007-09-04

2007-09-04

Shah, Manish S. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C347S112000, C523S160000

Reexamination Certificate

active

10781760

ABSTRACT:
An electrostatic inkjet ink composition including: a non-aqueous solvent having a dielectric constant of from 1.5 to 20 and a surface tension at 25° C. of from 15 to 60 mN/m; a color material that is insoluble in the non-aqueous solvent; and a charge control agent that is soluble in the non-aqueous solvent, wherein the charge control agent contains a half-aside maleic acid copolymer containing repeating units represented by the formulae (Ia) and (Ib) as defined herein.

REFERENCES:
patent: 2002/0058729 (2002-05-01), Oshima
patent: 2003/0225188 (2003-12-01), Horie
patent: 1 367 102 (2003-12-01), None
patent: 6-19595 (1994-03-01), None
patent: 6-19596 (1994-03-01), None
patent: 6-23865 (1994-03-01), None
patent: 9-193389 (1997-07-01), None
patent: 2001-139856 (2001-05-01), None

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