PROCESS FOR THE PREPARATION OF REACTION PRODUCTS OF PHOSPHORUS PENTACHLORIDE AND AMMONIUM CHLORIDE, PRODUCTS THUS OBTAINED AND PROCESS FOR THE CONDENSATION OF ORGANOSILOXANES

摘要

The reaction of phosphorus pentachloride with ammonium chloride is carried out in the presence of a metal-containing catalyst and carbon dioxide, preferably supercritical carbon dioxide, as the solvent. The product obtained generally has a catalytic activity greater than that of conventional linear phosphonitrilic chlorides, for the polycondensation and the rearrangement of organosiloxanes.