Patent ID: 7812085

Claim:
An adhesive composition consists essentially of: from 5 to 40 wt %, by weight of the adhesive composition, of a functionalized random propylene polymer (FRPP), where the FRPP has at least 0.1 wt % of a functional group; a heat of fusion of between 0.5 and 70 J/g; and an mm triad tacticity index of at least 75%, from 1 to 95 wt %, by weight of the adhesive composition, of an amorphous polypropylene polymer grafted to isotactic polypropylene polymer; from 3 to 30 wt %, by weight of the adhesive composition, of a tackifier comprising a hydrogenated aromatic modified resin produced from dicyclopentadiene feedstock, having a Ring and Ball softening point of 10° C. to 150° C.; and up to 20 wt %, by weight of the adhesive composition, of a wax; wherein the adhesive composition has a T-Peel adhesion on a polar substrate at 20° C. of at least 175 N/m (1 lb/in) and a T-Peel adhesion on a non-polar substrate at 20° C. of at least 175 N/m (1 lb/in), and wherein the polarity of the polar substrate is at least 0.10 units higher than the polarity of the non-polar substrate.