Patent ID: 8455562

Claim:
A siloxane composition X which does not contain any metal catalyst and which can be polymerized and/or crosslinked by dehydrogenative condensation, the composition comprising: at least one organosiloxane monomer, oligomer and/or polymer B having, per molecule, at least one reactive ≡SiH unit; at least one organosiloxane monomer, oligomer and/or polymer C having, per molecule, at least one reactive ≡SiOH unit; a catalytically effective amount of at least one dehydrogenative condensation catalyst A which is a nonsilylated organic compound corresponding to general formula (I): in which: the R 1 , R 2 , R 3 , R 4 or R 5 radicals, which can be identical or different, represent, independently of one another, a linear or branched monovalent alkyl group, a cycloalkyl group or a (cycloalkyl)alkyl group, the ring being substituted or unsubstituted and can comprise at least one heteroatom or a fluoroalkyl group, an aromatic group, an arylalkyl group, a fluoroalkyl group, or an alkylamine or alkylguanidine group, the R 1 , R 2 , R 3 or R 4 radicals can be linked in pairs so as to form a 3-, 4-, 5-, 6- or 7-membered aliphatic ring optionally substituted with one or more substituents, and with the additional condition that the R 1 , R 2 , R 3 , R 4 and R 5 radicals do not comprise a silicon atom, optionally at least one polyorganosiloxane resin D; and optionally at least one filler E.