Non-aqueous pigment ink and non-aqueous pigment ink set

Compositions: coating or plastic – Coating or plastic compositions – Marking

Reexamination Certificate

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C106S031860

Reexamination Certificate

active

08038784

ABSTRACT:
A non-aqueous pigment ink comprising a pigment, a pigment dispersant and a non-aqueous solvent, wherein the pigment dispersant comprises a copolymer of vinylpyrrolidone and an alkene of 10 to 40 carbon atoms.

REFERENCES:
patent: 5973027 (1999-10-01), Howald et al.
patent: 6053438 (2000-04-01), Romano, Jr. et al.
patent: 6153667 (2000-11-01), Howald
patent: 2007/0101901 (2007-05-01), Endo et al.
patent: 1 911 815 (2008-04-01), None
patent: P2003-261808 (2003-09-01), None
patent: P2007-126564 (2007-05-01), None

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