Patent ID: 6890584
Filing Date: 2005-05-10
Classification: C08G,C09D,C09K,H01B,H01L

Abstract:
1. A flexographic ink containing a polymer or copolymer of a 3,4-dialkoxythiophene in which the two alkoxy groups may be the same or different or together represent an optionally substituted oxy-alkylene-oxy bridge, a polyanion and a latex binder in an organic solvent or aqueous medium, wherein said polymer or copolymer of a 3,4-dialkoxythiophene is present in a concentration of at least 0.1% by weight in said flexographic ink and that said flexographic ink is capable of producing a colorimetrically additive transparent print, wherein said flexographic ink is exclusive of a dye and said flexographic ink contains a pigment and a non-Newtonian binder.