Process for decorating heat-stable polymer coating compositions

A process for decorating a heat-stable polymer coating on a substrate;

• the process consisting essentially of applying a heat-stable polymer composition either directly under or as a subsequent coat over an oxidation catalyst composition which is arranged in a decorative pattern on a substrate, and then baking the coating;
• wherein the oxidation catalyst or its decomposition product diffuses into the coating and either by reacting with the components of the coating, by catalyzing reactions within the coating or by itself renders, upon baking, the decorative pattern visible within the heat-stable polymer coating;
• wherein the heat-stable polymer composition comprising:
• a. heat-stable polymer stable at temperatures above 300.degree. C, said polymer being silicone, polysulfides, polymerized parahydroxy benzoic acid, polysulfone, polyimide, polyamide, polysulfonate, polysulfonamide, fluorocarbon, or mixtures thereof,
• b. a liquid carrier, and
• C. optionally an oxidation catalyst;
• D. optionally a colorant;
• wherein the oxidation catalyst is a compound or mixture of compounds produced by reaction of a metal from list (1) with an acid to form a salt compound of list (2)
• ______________________________________ (1) Metal Cobalt Bismuth Cerium Nickel Manganese Lead Iron (2) Salts Acetate Octoate Caprate Oleate Caprylate Palmitate Isodecanoate Ricinoleate Linoleate Stearate Nitrate Tallate Naphthenate Soyate. ______________________________________