ORGANOPOLYSILOXANIC COMPOSITIONS CONTAINING POLYACYLOXYSILANES AND HARDENING VERY FAST TO FORM ELASTOMERS IN THE PRESENCE OF A PROMOTER OF THE PHOSPHATE TYPE

摘要

ABSTRACT OF THE DISCLOSURE: The invention relates to organo-polysiloxane compositions comprising a polysiloxane polyhydroxylated a polyacyloxysilane and a hardening accelerator added at the time of employment. These compositions according to the in-vention are characterized in that the curing accelerator is a mixture of water and a phosphate and / or an alkali or alkaline earth polyphosphate. Said compositions may in particular be used for the manufacture of elastomeric seals and more particularly the manufacture of joints in situ.