Thermally polymerizable mixtures and processes for the thermally-initiated polymerization of cationically polymerizable compounds

Claim 1

A thermally polymerisable mixture containing (A) one or more cationically polymerisable compounds, (B) a catalytic amount of an aromatic iodonium salt of the formula I [(Ar.sup.1)(Ar.sup.2)I]+[MX.sub.n ].sup.- (I) in which Ar 1 and Ar 2 independently of one another are phenyl, naphthyl or phenyl which is substituted by one or more of the radicals C 1 -C 8 -alkyl, phenyl, phenoxy, halogen, nitro or C 1 -C 4 -alkoxy, or Ar 1 and Ar 2 together are a divalent radical of the formula II ##STR6## in which Y is a direct bond, --O--, --S--, or --CH 2 -- and R 1 is C 1 -C 4 -alkyl, halogen, nitro or C 1 -C 4 -alkoxy, M is a metal atom or metalloid atom from the series comprising B, P, As, Sb, Sn, Bi and Fe, X is fluorine or chlorine and n is 4, 5 or 6 and 1 larger than the valency of M, and (C) a catalytic amount of a compound of the formula III ##STR7## in which R 2 is C 1 -C 4 -alkoxy, --OCOR 4 or --OSi(R 5 )(R 6 )(R 7 ) and R 4 is C 1 -C 8 -alkyl or phenyl and R 5 , R 6 and R 7 independently of one another are C 1 -C 4 -alkyl or phenyl and R 3 is phenyl or C 1 -C 4 -alkyl, or of a compound of the formula IV ##STR8## in which R 8 is phenyl, cyclohexyl or C 1 -C 4 -alkyl and m is 2 to 20.