ONE COMPONENT ROOM TEMPERATURE VULCANIZING SILICONE ELASTOMER WITH IMPROVED PRIMERLESS ADHESION TO POLYCARBONATE

摘要

PATENTS 60SI-1530 A one component RTV composition having improved primerless adhesion to polycarbonate is formed of: A) polyalkoxysilane endcapped dimethylsilicone polymer, (B) reinforcing fumed silica fillers, (D) organosiloxane plasticizing oils, (C) an optional alkoxy silane crosslinker, (F) a stabilizing amount of a disilazane or polysilazane, (G) a tin condensation cure catalyst from the class of R2Sn(beta-diketonate)2 complexes, and (H)/(C) a glycidoxypropyltrimethoxy silane/cyanoathyltrimethoxysilane co-adhesion promoting system, having improved auto-adhesion to polycarbonate.