| abstract |
Disclosed is a composition comprising (a) at least one tight cycloolefin and (b) a catalytic quantity of at least one divalent-cationic compound of ruthenium or osmium with a metal atom, to which are bound 1-3 tertiary phosphine ligands with (in the case of ruthenium compounds) sterically exacting substituents, optionally non-photolabile neutral ligands and anions for charge balancing. The following condition must be observed: in ruthenium (tris-phenyl phosphine) dihalides or hydride-halides, the phenyl groups are substituted by C1-C18-alkyl, C1-C18- alkyl halide or C1-C18 alkoxy. The composition is suitable for the production of moulded parts of all kinds and of coatings. |