Microbiocidal organopolysiloxane molding compositions

Abstract

An organopolysiloxane composition having a microbiocidal action comprising an .alpha.,.omega.-dihydroxypolydiorganosiloxane and a benzimidazolyl-alkyl-carbamate of the formula ##STR1## wherein R.sup.1 is an alkyl radical with 1 to 4 carbon atoms, optionally substituted by the radical --OR.sup.3, R.sup.3 is an alkyl radical with 1 to 4 carbon atoms or the phenyl radical, and R.sup.2 is hydrogen, an alkyl radical with 1 to 4 carbon atoms, haolgen or nitro. Advantageously the carbamate is methylbenzimidazolylmethyl-carbamate, N-(fluorodichloromethylthio)-phthalimide, is present as a synergistic fungicide and the composition further comprises a silicon-containing crosslinking agent for the siloxane, a heavy metal salt or amino accellerant for crosslinking and an .alpha.,.omega.-bis-(trimethylsiloxy)-polydimethylsiloxane. Water per se or in atmospheric air cures the composition to a rubber elastic product resistant to microbes.

Dependencies are inferred from the claim text.