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    • 9. 发明专利
    • CURING TYPE TACKY ADHESIVE SHEET, JOINING OF MEMBER AND TACKY ADHESIVE MEMBER
    • JPH10120995A
    • 1998-05-12
    • JP28078096
    • 1996-10-23
    • SEKISUI CHEMICAL CO LTD
    • FUKUI KOJI
    • C09J7/02C08G59/68C09J5/00C09J133/00C09J163/00
    • PROBLEM TO BE SOLVED: To obtain a curing type tacky adhesive sheet excellent in temporary adhesivity because of having an excellent initial adhesive force in the ordinary state and capable of easily enhancing the adhesive strength after adhered. SOLUTION: This curing type tacky adhesive sheet comprises an adhesive polymer such as an acrylic polymer, a resin having epoxy groups and a compound for inducing the ring-opening reaction of the epoxy groups. Therein, a dynamic shear storage elastic modulus is 10 -10 in conditions comprising a frequency of 10Hz and a temperature of 0-50 deg.C, and the maximum value in values (tan δ) obtained by dividing a dynamic shear loss elastic modulus with the dynamic shear storage elastic modulus exists between -25 and +25 deg.C. The dynamic shear storage elastic modulus at a frequency of 0.1Hz and at 25 deg.C is 10 -10 , after the compound for inducing the ring-opening reaction of the epoxy groups is activated and subsequently aged at 25 deg.C for 7 days. The curing type tacky adhesive sheet can be used as an adhesive sheet at the ordinary state, and can be cured by the ring-opening polymerization reaction of the epoxy groups, when an activation energy is imparted.