Polymeric dispersant

• US 7,265,197 B2
• Filed: 12/05/2003
• Issued: 09/04/2007
• Est. Priority Date: 12/05/2003
• Status: Active Grant

• Current Assignee: Sun Chemical Corporation
• Original Assignee: Sun Chemical Corporation
• Inventors: Merchak, Paul A., Chamberlain, Terence R., Huber, Gregory T., Schwartz, Russell J., Deo, Niranjan
• Primary Examiner(s): SHOSHO, CALLIE E
• Application Number:
  US10/730,212
• Publication Number:
  US 20050120911A1
• Time in Patent Office: 1,369 Days
• Field of Search: 523/160, 523/161
• US Class Current: 528/350
• CPC Class Codes: C07D 209/48 with oxygen atoms in positions 1 and 3, e.g. phthalimide
• CPC Class Codes: C08L 59/00 Compositions of polyacetals; Compositions of derivatives of polyacetals of polyvinyl acetals C08L29/14
• CPC Class Codes: C09B 67/0089 non ionic dispersing agent, e.g. EO or PO addition products
• CPC Class Codes: C09B 67/009 polymeric dispersing agent
• CPC Class Codes: C09D 11/03 characterised by features other than the chemical nature of the binder
• CPC Class Codes: 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

Abstract

A polymeric dispersant of the structure:

wherein R₁ is selected from the group consisting of H, CH₃, and a combination thereof, and n is an integer from 4 to 200, for use in printing inks.

Claims

1. A polymeric dispersant compound for use in printing inks consisting essentially of the structure:

2. The compound of claim 1, wherein n is an integer from 20 to 65.

3. The compound of claim 2, wherein n is 35.

4. An energy curable printing ink composition containing the compound of claim 1.

5. A solvent based printing ink composition containing the compound of claim 1.

6. A water based printing ink composition containing the compound of claim 1.

7. A method for reducing the viscosity of an energy curable printing ink by adding the compound of claim 1 to the ink.

8. A method for increasing the gloss of an energy curable printing ink by adding the compound of claim 1 to the ink.

9. A polymeric dispersant compound for use in printing inks being the reaction product of reacting a polyoxyalkene amine with 1,2,4-benzenetricarboxylic acid anhydride consisting essentially of the structure:

10. The compound of claim 9 wherein the polyoxyalkene amine is derived from a copolymer of polyethylene oxide and a polypropylene oxide.

11. An energy curable printing ink polymeric dispersant additive of the structure:

12. A viscosity reducing printing ink polymeric dispersant additive of the structure:

13. A gloss increasing energy curable printing ink polymeric dispersant additive of the structure: