MOISTURE CURABLE ORGANOPOLYSILOXANE COMPOSITION

摘要

The present invention provides curable compositions comprising non-tin metal catalysts that accelerate the condensation curing of moisture-curable silicones/non-silicones. In particular, the present composition employs a metal free catalyst system comprising a diazabicyclic compound as the catalyst. The diazabicyclic compounds exhibit catalytic activity comparable or superior to organotin such as DBTDL and exhibit certain behavior in the presence of components such as adhesion promoters that allow for tuning or adjusting the cure characteristics of the present compositions and provide good adhesion and storage stability.

主权项

1. A composition for forming a cured polymer composition comprising:
(A) a polymer having at least a reactive silyl group; (B) a crosslinker or chain extender; (C) a catalyst comprising a diazabicyclic compound or a salt thereof; and (D) an optional adhesion promoter.