| abstract |
(57) [Problem] To provide a pressure-sensitive adhesive sheet for an intermediate film capable of producing a transparent laminate at room temperature without requiring high-temperature and high-pressure treatment by an autoclave. SOLUTION: An adhesive sheet 1 for an intermediate film includes an adhesive layer 2; And a release film 3 attached to both front and back surfaces. The pressure-sensitive adhesive layer 2 is configured to be curable with ultraviolet light, and has viscoelastic characteristics (a) and (b) before the ultraviolet light curing and (c) and (d) after the ultraviolet light curing. (a) Measurement temperature 20 ° C, storage elastic modulus G '(1 Hz) at a frequency of 1 Hz is 5 × 10 3 ~5 × 10 5 Pa. (b) Reference temperature 20 ° C, frequency 10-7 Hz Elastic modulus G '(10 -7 Hz) at 5 × 10 1 to 5 × 10 3 P a. (c) The storage elastic modulus G ′ (1 Hz) at a measurement temperature of 20 ° C. and a frequency of 1 Hz is 1 × 10 4 to 1 × 10 6 Pa. (d) Reference temperature The storage elastic modulus G ′ (10 −7 Hz) at 20 ° C. and a frequency of 10 −7 Hz is 1 × 10 4 Pa or more. The laminated glass 8 is formed by laminating the glass plate 4 and the synthetic resin plate 5 via the adhesive layer 2. |