| 摘要 |
This invention is directed to thermosettable ethylenically unsaturated epoxy ester resin compositions having improved storage stability and to a method for improving the storage stability of such compositions by adding an anaerobically effective polymerization inhibitor to the resin composition. The resin composition comprises the reaction product of a bisphenol-base epoxy resin, a novolac-base epoxy resin, or a mixture thereof with an ethylenically unsaturated monocarboxylic acid dissolved in a polymerizable monomer containing a >C=CH2 group. The polymerization inhibitors of this invention are 4-chloro-2-nitrophenol, 2,4-dichloro-6-nitrophenol, or mixtures thereof.
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