An imaging composition comprising a mixture of a solvent and a functional material; wherein the solvent is a compressed fluid and the functional material is a hole transporting material which is dissolved, dispersed and/or solubilized in the compressed fluid; wherein the mixture is thermodynamically...http://www.google.fr/patents/US6896723?utm_source=gb-gplus-shareBrevet US6896723 - Compressed fluid formulation containing hole transporting material
Compressed fluid formulation containing hole transporting material