Oligomeric rosin esters for use in inks

• US 8,969,611 B2
• Filed: 04/02/2014
• Issued: 03/03/2015
• Est. Priority Date: 03/01/2010
• Status: Active Grant

• Current Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Original Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Inventors: Carlini, Rina, Goredema, Adela
• Primary Examiner(s): Puttlitz, Karl J
• Application Number:
  US14/243,573
• Publication Number:
  US 20140213812A1
• Time in Patent Office: 335 Days
• Field of Search: None
• US Class Current: 560/102
• CPC Class Codes: C07C 2601/14 The ring being saturated
• CPC Class Codes: C07C 2603/54 containing more than five condensed rings
• CPC Class Codes: C07C 2603/86 containing four rings
• CPC Class Codes: C07C 69/753 of polycyclic acids
• CPC Class Codes: C09D 11/34 Hot-melt inks

Abstract

Disclosed are ester compounds of the formulae

• wherein R_c is alkylene, arylene, arylalkylene, or alkylarylene as further defined herein, R_d is alkylene, arylene, arylalkylene, or alkylarylene as further defined herein, and m and n are integers representing the numbers of repeat monomer units. The materials are suitable for use in inks and other applications.

Claims

1. A compound of the formula:

2. A compound according to claim 1 wherein R_d is —

(CH₂)₄—

.

3. A compound according to claim 1 wherein R_d is

4. A compound according to claim 1 wherein m is at least 1.

5. A compound according to claim 1 wherein m is at least about 2.

6. A compound according to claim 1 wherein m is no more than about 10.

7. A compound according to claim 1 having a weight average molecular weight of from about 600 to about 10,000 g/mol.

8. A compound according to claim 1 having a % BRC of at least about 60%.

9. A compound according to claim 1 having a polydispersity of from about 1 to about 2.

10. A compound according to claim 1 having a Tg of from about 1°

C. to about 30°

C.

11. A compound of the formula:

12. A compound according to claim 11 having a weight average molecular weight of from about 600 to about 10,000 g/mok and a Tg of from about 1°

C to about 30°

C.

13. A compound of the formula