Patent ID: 8470899

Claim:
A siloxane composition X which does not contain any metal catalyst and which can be polymerized and/or crosslinked by dehydrogenative condensation, the siloxane 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 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, the R 2 radical represents a hydrogen atom, a linear or branched monovalent alkyl group, a cycloalkyl group, an alkyl group substituted with a ring, which is substituted or unsubstituted and can comprise at least one heteroatom, an aromatic group, an arylalkyl group, a fluoroalkyl group, or an alkylamine or alkylguanidine group, and the R 3 radical represents a linear or branched monovalent alkyl group, a cycloalkyl group, an alkyl group substituted with a ring, which is substituted or unsubstituted and can comprise at least one heteroatom, or an arylalkyl, fluoroalkyl, alkylamine or alkylguanidine group, when the R 2 radical is not a hydrogen atom, the R 2 and R 3 radicals can be linked 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 and R 3 radicals do not comprise a silicon atom, optionally at least one polyorganosiloxane resin D; and optionally at least one filler E.