| 摘要 |
A one-part cyanoacrylate adhesive composition including a cyanoacrylate monomer and at least one salt of a cation which is a hard Lewis acid with an anion of low nucleophilicity. The cation is suitably a metal cation optionally selected from: Li+, Na+, K+, Be2+, Mg2+, Ca2+, Cr3+, Al3+, Fe2+, Co2+, Ni2+, Cu2+, Zn2+ or Pb2+. The anion may be selected from BF-4, PF-6, SbF-6, SbC1-4, AsF-6, SbCl-6, SnCl-6, FeCl-4, CF-3SO3 or C1O-4. The salt may be present in an amount from 0.001 % to 6 % by weight of the composition or the monomer.
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