Polyurethane adhesive composition for film lamination

A polyurethane adhesive composition comprising:

• a polyol component comprising at least one polyester polyol obtained from a reaction mixture comprising, based on the total weight of the reaction mixture,
• from 1 to 25% by weight of at least one cycloaliphatic polyol,
• from 1 to 40% by weight of at least one heterocyclic polyol,
• from 1 to 40% by weight of at least one linear or branched aliphatic polyol, and
• from 30 to 70% by weight of at least one polyfunctional carboxylic acid, and
• an isocyanate component comprising the combination of at least one aliphatic or alicyclic isocyanate-functionalized compound and at least one hydrolyzable alkoxysilane compound having no epoxide group, and/or the reaction product of at least one aliphatic or alicyclic isocyanate-functionalized compound and at least one hydrolyzable alkoxysilane compound having no epoxide group,
• wherein the cycloaliphatic polyol is selected from 1,4-cyclohexanedimethanol, cyclobutanediol, cyclopentanediol, 1,4-cyclohexanediol, cycloheptanediol, cyclooctanediol, cyclohexanedimethanol, tricyclo[5.2.1.0.2.6]decanedimethanol, bicyclo[4.3.0]-nonanediol, dicyclohexanediol, tricyclo[5.3.1.1]dodecanediol, bicyclo[4.3.0]nonanedimethanol, tricyclo[5.3.1.1]dodecanediethanol, spiro[3.4]octanediol, butylcyclohexanediol, 1,1′-bicyclohexylidenediol, cyclohexanetriol, hydrogenated bisphenol A, 1,3-adamantanediol, and mixtures thereof.