KETONFOERENING SOM INHIBERAR EFFEKTEN AV EN METALLKATALYSATOR TILLHOERANDE PLATINAGRUPPEN OCH ORGANOPOLYSILOXANKOMPOSITIONER INNEHAOLLANDE DEN.

摘要

Curable organopolysiloxane compositions useful, e.g., for the production of anti-stick coatings, comprise (1) an organopolysiloxane, (2) an organohydropolysiloxane, (3) a platinum group metal hardening catalyst, and (4) a platinum catalysis inhibitor comprising an acetylenic alpha -ketone in an amount which inhibits gelation at ambient temperatures but does not prevent cross-linking at temperatures in excess thereof.