| abstract |
1. Curing catalyst, including! Lewis acid and! one or both of a nitrogen-containing molecule and a non-tertiary phosphine, in which the nitrogen-containing molecule comprises a monoamine or a heterocyclic aromatic organic compound. ! 2. A catalyst according to claim 1, wherein the Lewis acid is a complex or adduct of one or both of the nitrogen-containing molecule or non-tertiary phosphine components. ! 3. The catalyst according to claim 1, wherein the nitrogen-containing molecule comprises one or both of 1,8-diazabicyclo [5.4.0] undec-7-ene and methylimidazole. ! 4. The catalyst of claim 1, wherein the Lewis acid comprises trisubstituted borane. ! 5. The catalyst of claim 4, wherein the Lewis acid comprises tri (aryl) borane. ! 6. The catalyst according to claim 4, in which the tri (aryl) borane comprises one or more radicals from the following: phenyl, pentafluorophenyl; 2,3,5,6-tetrafluorophenyl; 2,3,4,5-tetrafluorophenyl; 3,4,5-trifluoro-1-phenyl or 4- (pentafluorophenyl) -2,3,5,6-tetrafluorophenyl. ! 7. The catalyst of claim 6, wherein the Lewis acid comprises one or more non-hydrolysable halogens. ! 8. The catalyst according to claim 1, wherein the Lewis acid has a structure as shown in formula (I):! MRbXc (I),! in which M represents B, Al, Ga, In or Tl; each R is, independently of one another, a monovalent aromatic hydrocarbon radical having from about 6 to about 14 carbon atoms, optionally the monovalent aromatic hydrocarbon radical has an electron-withdrawing element or group, or is substituted by at least two halogen atoms, and “b” is 1, 2 or 3; X is a halogen atom and “c” is 0, 1, or 2; provided that (b + c) = 3. ! 9. Curable composite |