Organopolysiloxane compositions which can be cross-linked to form elastomers with elimination of alcohols

摘要

An organopolysiloxane materials (OPS), which can be stored in the absence of moisture and which are crosslinked to elastomers with cleavage of alcohols on exposure to moisture at room temperature (i.e. RTV-1 materials), contain: (A) essentially linear polyorganosiloxanes with at least 2 organyloxy groups on each end group; optionally (B) crosslinkers with at least 3 functional organyloxy groups; optionally (C) condensation catalysts; and (D) calcium chloride and/or magnesium chloride. Also claimed are: (i) a process for the production of OPS by mixing components (A) and (D) and optionally other components in any sequence; and (ii) elastomers obtained by crosslinking OPS.