发明公开
EP3215556A1 NOUVEAUX CATALYSEURS DE RÉTICULATION DE COMPOSITIONS SILICONES 审中-公开
NOUVEAUX CATALYSEURS DERÉTICULATIONDE组合物硅

NOUVEAUX CATALYSEURS DE RÉTICULATION DE COMPOSITIONS SILICONES
摘要:
The invention relates to a crosslinkable composition X, comprising: at least one organopolysiloxane compound A comprising, per molecule, at least two C
2 -C
6 alkenyl radicals bonded to silicon atoms; at least one organohydrogenopolysiloxane compound B comprising, per molecule, at least two hydrogen atoms bonded to an identical or different silicon atom; at least one catalyst C which is a complex corresponding to the following formula: [Co (L
1 )
2 ] in which: the symbol Co represents cobalt at degree of oxidation II; the symbols L
1 , which may be identical or different, represent a ligand which is a β-dicarbonylato anion or the enolate anion of a β-dicarbonylated compound; optionally at least one adhesion promoter D; and optionally at least one charge E. The invention also relates to the use of the previously described catalyst C as silicone composition crosslinking catalyst, to a silicone composition crosslinking method, characterized in that it consists in heating the composition X to a temperature of between 70 and 200°C, and to the resulting crosslinked silicone material Y.
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