Polyurethane elastomeric adhesive composition and composite...

Details Polyurethane elastomeric adhesive composition and composite... Polyurethane elastomeric adhesive composition and composite...

C - Chemistry, Metallurgy

08

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C08L 71/02 (2006.01) B32B 7/12 (2006.01) C08G 18/48 (2006.01) C08G 18/62 (2006.01) C08G 18/64 (2006.01) C08L 39/02 (2006.01) C08L 79/02 (2006.01) C09J 175/08 (2006.01)

Patent

CA 2610233

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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