NOVELTY - Adhesive composition comprises (a) polyester polyol having 1.5-3.5 primary hydroxyl group on average in one molecule, (b) polyisocynate chosen from hexamethylene diisocynate, hexamethylene diisocynate and allophanate of isophorone-diisocynate, nurates or their complex, and polyisocyanate other than polyisocyanate (b) chosen from trimethylol propane adduct component of an isophorone diisocyanate and/or nurate component of an isophorone diisocyanate (c) silane coupling agent, and (d) dioctyltin dilaurate as reaction accelerator.    USE - The adhesive composition for laminated sheets is used in laminated component (claimed). Uses include but are not limited to barrier material, roof material, solar cell panel material, window material, outdoor flooring material, illumination protective material, motor vehicle component, signboard and authentication protective material.    ADVANTAGE - The bubble generation during lamination and fall of time-dependent adhesive strength during outdoor exposure can be suppressed. The adhesive composition maintains adhesive strength for a long period of time. The laminated component has excellent external appearance without foaming.    DETAILED DESCRIPTION - Adhesive composition comprises (a) polyester polyol having 1.5-3.5 primary hydroxyl group on average in one molecule with a number average molecular weight of 5000-50000, (b) polyisocynate chosen from hexamethylene diisocynate, allophanate or nurates of hexamethylene diisocyanate and isophorone-diisocynate or their complex having an average of 4-7 isocyanate groups in one molecule, and polyisocyanate other than polyisocyanate (b) chosen from trimethylol propane adduct component of an isophorone diisocyanate and/or nurate component of an isophorone diisocyanate, (c) 0.1-5 wt.% of silane coupling agent, and (d) dioctyltin dilaurate as reaction accelerator. The isocyanate group of polyisocyanate having average of 4-7 isocyanate groups in one molecule is 0.1-0.7 mole with respect to 1 mole of isocyanate groups in the composition.