CROSSLINKABLE ADHESIVE SILICONE COMPOSITION COMPRISING AS GELLING AGENT A COMPOUND WITH CYCLIC AMINE FUNCTION BORNE BY A SILOXANE CHAIN

摘要

The invention more particularly concerns self-adhesive silicone elastomeric compositions crosslinked by addition reaction, having modified rheological properties. Thus the invention concerns a crosslinkable adhesive silicone composition comprising a polyorganosiloxane (POS) with ( alpha , omega -di-Vi polydimethylsiloxane) Si-Vi units; a crosslinking POS with SiH units; a platinum catalyst; a filler; and optionally an adherence promoter comprising vinyltrimethoxysilane, 3-glycidoxy-propyltrimehtoxysilane and butyl titanate and/or a cross-linkage inhibitor and/or a MMViDDViQ or MDViQ or MMViQ unsaturated POS. Said composition is characterized in that it further comprises a polyorganosiloxane having per mole at least a piperidinyl function. The invention aims at providing a crosslinkable elastomeric silicone composition having rheological properties fully adapted to enable successful use of the composition for bonding various substrates as well as for performing moulding operations requiring non-flowable materials.