Patent ID: 8257786

Claim:
A non-volatile printing or coating composition comprising a material to be deposited on a substrate and a non-volatile liquid vehicle for said material, wherein the liquid vehicle is cleavable by heating said composition to a temperature not exceeding 200° C. without decomposition of said material, cleavage of said vehicle producing decomposition products that are more volatile than said vehicle and which can be evaporated to dry the composition, wherein said liquid vehicle is of the formula: wherein R 1 is an aliphatic or aromatic substituent of more than three carbon atoms, R 2 is an organic substituent and R 3 is C 1-3 alkyl or is of the formula: wherein R is an aliphatic or aromatic substituent of more than three carbon atoms and all of the decomposition products of said vehicle produced by said cleavage upon heating have a boiling point at atmospheric pressure of below 200° C., wherein the material to be deposited comprises an electrically conductive polymer, a photovoltaic polymer, or an electroluminescent polymer.