Phase change inks containing oxazoline compounds and polyterpene resins

• US 8,481,609 B2
• Filed: 08/02/2011
• Issued: 07/09/2013
• Est. Priority Date: 08/02/2011
• Status: Expired due to Fees

• Current Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Original Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Inventors: Carlini, Rina, Goredema, Adela, Sacripante, Guerino G., Turek, Caroline M., Zwartz, Edward G.
• Primary Examiner(s): NILAND, PATRICK DENNIS
• Application Number:
  US13/196,157
• Publication Number:
  US 20130035428A1
• Time in Patent Office: 707 Days
• Field of Search: 523/160, 523/161, 524/86, 524/95, 524/104, 524/543, 524/570, 524/571, 524/579, 347/1, 347/60, 347/85, 347/95, 347/100, 347/102
• US Class Current: 523/160
• CPC Class Codes: C09D 11/34 Hot-melt inks
• CPC Class Codes: C09D 11/38 characterised by non-macromolecular additives other than solvents, pigments or dyes

Abstract

Disclosed is a phase change ink comprising (a) a crystalline oxazoline compound; and (b) an amorphous polyterpene resin.

Claims

1. A phase change ink comprising:

(a) a crystalline oxazoline compound which is

2. An ink according to claim 1 wherein the oxazoline compound is present in the ink in an amount of from about 10 to about 90 percent by weight of the ink.

3. An ink according to claim 1 wherein the polyterpene resin is an α

-pinene/β

-pinene copolymer, a β

-pinene polymer, a limonene polymer, or a mixture thereof.

4. An ink according to claim 1 wherein the polyterpene resin is present in the ink in an amount of from about 5 to about 50 percent by weight of the ink.

5. An ink according to claim 1 further containing a viscosity modifier.

7. An ink according to claim 1 wherein the colorant is a pigment.

8. An ink according to claim 1 wherein the colorant is a dye.

10. An ink according to claim 1 having a peak melting point, as measured by DSC, of from about 60 to about 120°

C.

13. An ink according to claim 5 wherein the viscosity modifier is a sorbitol ester, a pentaerythritol ester, or a mixture thereof.

14. An ink according to claim 1 wherein the polyterpene resin contains monomers selected from the group consisting of alpha-pinene, beta-pinene, limonene, norbornene, myrcene, phellandrene, carvone, camphene, 2-carene, 3-carene, perillyl alcohol, perillyl aldehyde, perillic acid, alkyl esters of perillyl alcohol, aryl esters of perillyl alcohol, arylalkyl esters of perillyl alcohol, alkylaryl esters of perillyl alcohol, α

-ionone, β

-ionone, γ

-terpinene, β

-citronellene, β

-citronellol, citronellal, citronellic acid, alkyl esters of β

-citronellol, aryl esters of β

-citronellol, arylalkyl esters of β

-citronellol, alkylaryl esters of β

-citronellol, geraniol, geranial, alkyl esters of geraniol, aryl esters of geraniol, arylalkyl esters of geraniol, alkylaryl esters of geraniol, linalool, alkyl esters of linalool, aryl esters of linalool, arylalkyl esters of linalool, alkylaryl esters of linalool, nerolidol, alkyl esters of nerolidol, aryl esters of nerolidol, arylalkyl esters of nerolidol, alkylaryl esters of nerolidol, verbenol, verbenone, alkyl esters of verbenol, aryl esters of verbenol, arylalkyl esters of verbenol, alkylaryl esters of verbenol, and mixtures thereof.

15. An ink according to claim 1 having a hardness value of at least about 70 as measured at about 25°

C.

6. A phase change ink comprising:

(a) a crystalline oxazoline compound;

(b) an amorphous polyterpene resin; and

a viscosity modifier which is a sorbitan tristearate ester, a pentaerythritol tetrastearate, a pentaerythritol tetrabenzoate, or a mixture thereof.

9. An ink according to claim 6 having a hardness value of at least about 70 as measured at about 25°

C.

11. An ink according to claim 6 wherein the oxazoline compound is of the formula

12. An ink according to claim 6 wherein the polyterpene resin contains monomers selected from the group consisting of alpha-pinene, beta-pinene, limonene, norbornene, myrcene, phellandrene, carvone, camphene, 2-carene, 3-carene, perillyl alcohol, perillyl aldehyde, perillic acid, alkyl esters of perillyl alcohol, aryl esters of perillyl alcohol, arylalkyl esters of perillyl alcohol, alkylaryl esters of perillyl alcohol, α

-ionone, β

-ionone, γ

-terpinene, β

-citronellene, β

-citronellol, citronellal, citronellic acid, alkyl esters of β

-citronellol, aryl esters of β

-citronellol, arylalkyl esters of β

-citronellol, alkylaryl esters of β

-citronellol, geraniol, geranial, alkyl esters of geraniol, aryl esters of geraniol, arylalkyl esters of geraniol, alkylaryl esters of geraniol, linalool, alkyl esters of linalool, aryl esters of linalool, arylalkyl esters of linalool, alkylaryl esters of linalool, nerolidol, alkyl esters of nerolidol, aryl esters of nerolidol, arylalkyl esters of nerolidol, alkylaryl esters of nerolidol, verbenol, verbenone, alkyl esters of verbenol, aryl esters of verbenol, arylalkyl esters of verbenol, alkylaryl esters of verbenol, and mixtures thereof.

16. An ink according to claim 6 wherein the colorant is a pigment.

17. An ink according to claim 6 wherein the colorant is a dye.