| 摘要 |
Thermosetting compositions comprising: (A) a sulfonic acid ester comprising the reaction product of an epoxy functional polymer bearing hydroxyl functionality, and a sulfonic acid having the formula <IMAGE> wherein R is selected from linear or branched alkyl groups and aryl groups; and (B) an amine aldehyde crosslinking agent. During cure of the composition, component (A) breaks down to form not only a reactive sulfonic acid catalyst, but also the hydroxy functional film forming material which crosslinks with the amine aldehyde crosslinking agent.
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