Patent ID: 8318878

Claim:
A curable composition comprising a polymerization catalyst according to formula I wherein n=1, 2, 3 or 4, E 1 and E 2 are electron withdrawing substituents, R is a member selected from the group consisting of a hydrogen, and a linear or branched substituted or non substituted alkyl group with 1 to 20 C-atoms, an aryl-group, an hydroxyl-group, an ether bridged alkyl chain or halogen, and Metal is a member selected from the group of all metals which are capable of forming metal:ligand complexes and 2 x+ 1 =y+z and z>y , and 2 x′+ 1 =y′+z ′ and z′>y′; and at least one polymerizable benzoxazine component.