| 摘要 |
A resin composition is reacted with a polyisocyanate composition to form a polyurethane elastomeric adhesive. The polyurethane elastomeric adhesive adheres a first substrate to a second substrate to form a composite article. The resin composition comprises a first isocyanate-reactive component, a catalyst component, and a chelating agent. The first isocyanate-reactive component comprises an internal block copolymer formed from an initiator and an alkylene oxide and comprises terminal isocyanate-reactive groups. The chelating agent comprises a branched polymeric amine having a weight-average molecular weight of from about 800 to about 200,000 and is present in an amount of from about 1 to about 10 parts by weight based on 100 parts by weight of the resin composition.
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