Patent ID: 6117612
Filing Date: 2000-09-12
Classification: B33Y,C04B,C22C,G03F

Abstract:
A process for the preparation of a multi-layer ceramic green body, comprising:a) selecting an aqueous photopolymerizable ceramic resin comprising:i) from 40 to about 80 volume percent of one or more sinterable powders;ii) one or more photopolymerizable monomer(s);iii) an effective amount of a photoinitiator; andiv) a dispersant;wherein said photopolymerizable ceramic resin has a viscosity at 25.degree. C. of less than 3000 mPa.multidot.s;b) coating a substrate with a first layer of said photopolymerizable ceramic resin;c) irradiating at least a portion of said layer with an energy source effective to activate said photoinitiator and induce photopolymerization of said layer to form a polymerized ceramic layer;d) coating said polymerized ceramic layer with a further layer of photopolymerizable ceramic resin;e) irradiating said further layer with an energy source effective to activate said photoinitiator and induce photopolymerization of said further layer to form a further polymerized ceramic layer;f) repeating steps d) and e) until a green ceramic body of a desired size and shape has been obtained.