US 8772416

US Patent 8772416 Summary

Title: Ink compositions containing isosorbide-capped amide gellant
Assignee: Xerox Corp
Inventors: Naveen Chopra, Michelle N. Chrétien, Barkev Keoshkerian, Daryl Vanbesien, Jenny Eliyahu
Filing Date: April 9, 2012
Issue Date: July 8, 2014

Abstract: Disclosed herein are ester-terminated polyimide gellant compounds end-capped with isosorbide and UV curable ink compositions containing them.

Plain-language overview of independent claims:

• Independent Claim 1: This claim describes a curable solid ink composition. It includes a curable wax, one or more monomers, an optional colorant, an amide gellant, and a photoinitiator. The key feature of this claim is that the amide gellant is an ester-terminated polyamide resin that is specifically "end-capped with isosorbide".

• Independent Claim 11: This claim describes a specific gellant compound. The compound has a central polyamide structure with "R1" and "R2" groups, and is terminally capped with isosorbide through ester linkages. "n" can range from 0 to 10. R1 and R2 are defined by various substituted or unsubstituted alkylene, arylene, arylalkylene, or alkylarylene groups with specific carbon atom ranges.

• Independent Claim 16: This claim outlines a method of ink jet printing an image. The method involves jetting a curable solid ink onto a print substrate to form an image, and then exposing the image to radiation to cure the ink. The curable solid ink used in this method is characterized as comprising a curable wax, an optional non-curable component, one or more monomers, an optional colorant, an amide gellant (which is an ester-terminated polyamide resin end-capped with isosorbide), and a photoinitiator.

No results were found for US Patent 8772416 in CAFC 2026 dockets.