Latent two-part polyurethane adhesives curable with infrared radiation

A composition comprising a polyol component and an isocyanate component, wherein:

• a) the polyol component includes;
• i) one or more polyols having a hydroxyl equivalent weight of 400 to 2000 and a nominal hydroxyl functionality of 2 to 4;
• ii) one or more aliphatic diol chain extenders;
• and
• iii) one or more latent room temperature organometallic catalysts;
• b) the polyisocyanate component includes:
• iv) one or more polyisocyanate compounds;
• wherein the polyisocyanate component includes isocyanate groups and the polyol component isocyanate-reactive groups wherein a ratio of a number of the isocyanate groups in the polyisocyanate component to a number of the isocyanate-reactive groups in the polyol component is about 1.0 to about 1.8;
• and v) one or more carboxylic acid-blocked cyclic amidine compounds and vi) one or more phenol-blocked cyclic amidine compounds are located in the polyol component or the isocyanate component and the composition is useful as a two-component polyurethane adhesive composition.