Electrophotographic printing process using a dialkoxy aluminum fatty acid salt as the cross-linking catalyst

Claim 1

IN AN ELECTROPHOTOGRAPHIC METHOD OF PREPARING ETCHABLE PRINTING PLATES EMPLOYING A PHOTOCONDUCTIVE ZINC OXIDE IN A CROSS-LINKABLE RESIN-TYPE INSULATING BINDER AS A PHOTOCONDUCTIVE RECORDING ELEMENT WHICH INCLUDES CHARGING SAID RECORDING ELEMENT WITH AN ELECTROSTATIC CHARGE, EXPOSING THE SO-CHARGED ELEMENT TO A LIGHT IMAGE THEREBY FORMING A LATENT ELECTROSTATIC IMAGE THEREON, DEVELOPING SAID ELECTROSTATIC IMAGE BY CONTACT AND SUBSEQUENT HEATING WITH A CATALYST MATERIAL WHICH PROMOTES CROSS-LINKING OF SAID CROSS-LINKABLE BINDER TO FORM AN ETCH RESIST IMAGE; THE IMPROVEMENT WHICH INCLUDES USING A DIALKOXY ALUMINUM FATTY ACID SALT AS THE CROSS-LINKING CATALYST WHEREIN EACH ALKOXY GROUP OF SAID SALT CONTAINS FROM 1 TO 10, INCLUSIVE, CARBON ATOMS, AND THE FATTY ACID RADICAL OF SAID SALT CONTAINS FROM 6 TO 18, INCLUSIVE, CARBON ATOMS.