Process for the production of silicon nitride type molded bodies and the molded bodies produced

Abstract From the Canadian patent

A process for the production of silicon nitride type molded bodies, comprising the steps of: reacting together (1) a silicon halide or a polymerizable group-containing organohalogenosilane (2) a monomer co-polymerizable with said polymerizable group or a monomer containing a plurality of polymerizable groups and (3) ammonia gas or an ammonia-producing compound to obtain a compound containing a silazane group copolymerized with the polymerizable group molding the silazane group-containing compound together with or without a polyhydric alcohol or a base material and, heating the resulting molded body in a N2 or NH3 atmosphere thereby to produce the silicon nitride type molded body.