USE OF A PRETREATED SILICA IN A SILICONE COMPOSITION CROSSLINKABLE BY POLYCONDENSATION, AS AGENT FOR STABILIZING MOULDS OBTAINED FROM SAID COMPOSITION

摘要

The present invention relates to the use, for improving the longevity of moulds made of polycondensation-crosslinking silicone elastomer, of an additive capable of stabilizing the silicone elastomer of which the mould is made with respect to materials to be moulded and especially polyester resins. This stabilizer is based on silica pretreated with a silane. It is preferably a ground quartz treated with an alkyl silane.