Patent ID: 9327418
Filing Date: 2016-05-03
CPC Classification: B26D,Y10T

Claim Text:
1. An adhesive film comprising: an adhesive layer; and a first base material and a second base material sandwiching the adhesive layer; wherein outer edges of the first base material and the second base material extend outward beyond the outer edge of the adhesive layer, a notch is formed on the adhesive layer side of the first base material, along the outer edge of the adhesive layer, the first base material has a thickness greater than the second base material, an average notch depth is between 5 μm and 45 μm, a standard deviation for the notch depth is no greater than 15 μm, and wherein a peel strength between the first base material and the adhesive layer is higher than a peel strength between the second base material and the adhesive layer.