LAMINATED GLASS
There is provided a laminated glass in which reduction in design and productivity due to an overflow portion of an intermediate film is improved. A laminated glass includes: a pair of glass plates facing each other; and an intermediate film having one or more layers provided between the pair of glass plates, in which the intermediate film has an adhesive layer whose storage modulus satisfies, in dynamic viscoelasticity measurement at a measurement frequency of 10 Hz, a requirement (1) in which the storage modulus has a maximum value of 2.3×10 6 Pa or more in a temperature range of 90 to 120° C., and a requirement (2) in which the storage modulus has any value within a range of 1.0×10 8 to 4.0×10 8 Pa in a temperature range of 20 to 40° C.
1 . A laminated glass, comprising: a pair of glass plates facing each other; and
an intermediate film having one or more layers provided between the pair of glass plates, wherein
the intermediate film has an adhesive layer whose storage modulus satisfies the following requirements (1) and (2) in dynamic viscoelasticity measurement at a measurement frequency of 10 Hz:
(1) the storage modulus has a maximum value of 2.3×10 6 Pa or more in a temperature range of 90 to 120° C.; and
(2) the storage modulus has any value within a range of 1.0×10 8 to 4.0×10 8 Pa in a temperature range of 20 to 40° C.
2 . The laminated glass according to claim 1 , wherein
the storage modulus of the adhesive layer has any value within a range of 2.3×10 6 Pa or more and less than 1.0×10 7 Pa in the temperature range of 90 to 120° C. in the dynamic viscoelasticity measurement at the measurement frequency of 10 Hz.
3 . The laminated glass according to claim 1 , further comprising
a functional coating layer on at least one surface of facing surfaces of the pair of glass plates.
4 . The laminated glass according to claim 1 , wherein
the intermediate film is configured of at least two layers, and a functional film is provided between layers of the intermediate film.
5 . The laminated glass according to claim 4 , wherein
the functional film contains a material which exhibits any of light absorption, reflection of light, light scattering, light control, power generation, heat generation, and light emission.
6 . The laminated glass according to claim 1 , wherein
a thickness of the adhesive layer occupies 30% or more of a total thickness of the intermediate film.
7 . The laminated glass according to claim 1 , wherein
the total thickness of the intermediate film is 0.4 mm or more and less than 4.0 mm.