Linear polyester resins and improved lithographic inks
AssigneeSun Chemical Corporation
InventorsMichael J. Jurek, Joseph Malanga
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Abstract
The present invention describes a linear polyester resin comprising a di-epoxide monomer and a di-acid monomer useful in energy curable lithographic inks. The linear polyester resin exhibits a number average molecular weight less than 20,000. The present invention also describes an energy curable lithographic ink formulation including the linear polyester resin. The ink exhibits improved print density, print contrast, water window and rheological (total body) characteristics.
Claims34
A polyester resin having a substantially linear structure and a number average molecular weight less than about 20,000, said polyester resin comprising:
- a di-epoxide monomer;
- and a di-acid monomer.
Dependencies are inferred from the claim text.