# US 8,772,416 B2 · Ink compositions containing isosorbide-capped amide gellant

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- Number: US 8,772,416 B2
- Document ID: US8772416B2
- Status: Granted
- Kind: B2
- Application number: 13/442,534
- Filed: 2012-04-09
- Published: 2013-10-10
- Granted: 2014-07-08
- Earliest claimed: 2012-04-09
- Assignees: Xerox Corporation
- Applicants: Naveen Chopra; Michelle N. Chrétien; Barkev Keoshkerian; Daryl Vanbesien; Jenny Eliyahu
- Inventors: Naveen Chopra; Michelle N. Chrétien; Barkev Keoshkerian; Daryl Vanbesien; Jenny Eliyahu
- Web page: https://patentgrep.com/patent/US8772416B2

## CPC

- C07D 493/04: Ortho-condensed systems
- C09D 11/101: Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
- C09D 11/34: Hot-melt inks
- C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08)
- C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D)

## Abstract

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

## Claims

### Claim 1

A curable solid ink comprising:
a curable wax;
one or more acrylate monomers;
an amide gellant, wherein the gellant is an ester-terminated polyamide resin end-capped with isosorbide in which the isosorbide defines the ester termination;
an optional colorant;
and a photoinitiator.

### Claim 2 (depends on 1)

The curable solid ink of claim 1, wherein the curable wax is present in the curable solid ink in an amount of from about 0.1 to about 30 percent by weight of the total weight of the curable solid ink.

### Claim 3 (depends on 1)

The curable solid ink of claim 1, wherein the one or more monomers are present in the curable solid ink in an amount of from about 50 to about 95 percent by weight of the total weight of the curable solid ink.

### Claim 4 (depends on 1)

The curable solid ink of claim 1, wherein the amide gellant is present in the curable solid ink in an amount of from about 1 to about 30 percent by weight of the total weight of the curable solid ink.

### Claim 5 (depends on 1)

The curable solid ink of claim 1, wherein the optional colorant is present in the curable solid ink in an amount of from 0.1 to about 10 percent by weight of the total weight of the curable solid ink.

### Claim 6 (depends on 1)

The curable solid ink of claim 1, wherein the photoinitiator is present in the curable solid ink in an amount of from about 0.5 to about 15 percent by weight of the total weight of the curable solid ink.

### Claim 7 (depends on 1)

The curable solid ink of claim 1 further comprising a non-curable wax component being an ethoxylated octylphenol derivative.

### Claim 8 (depends on 1)

The curable solid ink of claim 1, wherein the amide gellant is a compound of the formula:
wherein n is 1 to 10, and wherein R1 is selected from the group consisting of:
(i) alkylene group having from about 1 carbon atom to about 12 carbon atoms,
(ii) arylene group having from about 6 carbon atoms to about 15 carbon atoms,
(iii) arylalkylene group having from about 7 carbon atoms to about 32 carbon atoms, and
(iv) alkylarylene group having from about 7 carbon atoms to about 32 carbon atoms;
wherein R2 is selected from the group consisting of:
(i) alkylene groups having from about 1 carbon atom to about 54 carbon atoms,
(ii) arylene groups having from about 6 carbon atoms to about 15 carbon atoms,
(iii) arylalkylene groups having from about 7 carbon atoms to about 32 carbon atoms, and
(iv) alkylarylene groups having from about 7 carbon atoms to about 32 carbon atoms.

### Claim 9 (depends on 8)

The curable solid ink of claim 8, wherein the alkylene group of R1 or R2 includes a group that is linear and branched, and saturated and unsaturated, and wherein the alkylene group optionally is substituted with heteroatoms selected from the group consisting of oxygen, nitrogen, sulfur, silicon, phosphorus, and boron.