| US 7,531,582 B2 | ||
| Radiation curable phase change inks containing curable epoxy-polyamide composite gellants | ||
| Eniko Toma, Mississauga (Canada); Peter G. Odell, Mississauga (Canada); C. Geoffrey Allen, Waterdown (Canada); and Jennifer Lynne Belelie, Oakville (Canada) | ||
| Assigned to Xerox Corporation, Norwalk, Conn. (US) | ||
| Filed on Aug. 23, 2006, as Appl. No. 11/466,687. | ||
| Prior Publication US 2008/0122914 A1, May 29, 2008 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. C09D 11/00 (2006.01); G01D 11/00 (2006.01) | ||
| U.S. Cl. 523—160 [523/161; 347/100] | 20 Claims |
| 1. A radiation-curable phase-change ink vehicle having improved gellant solubility, the ink vehicle comprising:
at least a first co-monomer,
at least a second co-monomer that is different from the first co-monomer,
at least a first gellant comprising a curable epoxy-polyamide composite gellant, and
at least a second gellant that is different from the a first gellant,
wherein the first co-monomer and the second co-monomer are radiation-curable monomers,
wherein the first co-monomer is present in an amount ranging from about 40 to about 70% by weight, relative to the total weight
of the ink vehicle, and the second co-monomer is present in an amount ranging from about 20 to about 50% by weight, relative
to the total weight of the ink vehicle, and
wherein the first co-monomer is propoxylated neopentyl glycol diacrylate and the second co-monomer is caprolactone diacrylate
or 2-phenoxyethyl acrylate.
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