Process for treating polyorganosilazanes and/or polyorgano(disilyl)silazanes with a catalyst comprising a mineral ionic salt and a complexing agent

摘要

The present invention relates to a polyorganosilazanes method of treating and / or polyorgano (disilyl) silazanes with an effective amount of a catalyst system comprising an ionic inorganic salt of formula M ⁺ A ^- and a compound complexing the cation M ⁺ may dissociate at least partially said salt selected from trisoxaalkylamines, crown ethers and cryptands.; Polysilazanes thus treated exhibit a high tenuether- Economic and be used, in particular, after pyrolysis, as precursors of ceramic products.