Patent ID: 7021550
Filing Date: 2006-04-04
Classification: G06K,H01L

Abstract:
1. A method for preparing an IC card having an IC module provided in an adhesive layer between a first substrate and a second substrate, the method comprising supplying an adhesive to a first sheet substrate for forming the first substrate and a second sheet substrate for forming the second substrate to form an adhesive layer, supplying an IC module containing an IC chip between the adhesive layers, adhering the first and the second sheet substrates to form a blanc IC card sheet having the IC module between the adhesive layers, and cutting the blanc IC card sheet to form a blanc IC card, wherein the adhesive contains diphenylmethanediisocyanate in an amount of less than 1.0 percent by weight based on the whole amount of the adhesive and has an elongation at fracture of the adhesive of 150–1,500 percent after complete curing, and the blanc IC card sheet is cut when an elongation at fracture of the adhesive of 5–500 percent prior to complete curing.