Title:
OPTICAL LAMINATE AND ADHESIVE LAYER-ATTACHED OPTICAL LAMINATE
Document Type and Number:
WIPO Patent Application WO/2021/261118
Kind Code:
A1
Abstract:
[Problem] To provide an optical laminate and an adhesive layer-attached optical laminate having excellent impact resistance. [Solution] This optical laminate 1 comprises a glass plate 2, an adhesive layer 3, and a film 4 in this order toward one thickness direction side. The glass plate 2 has a thickness of less than 40 μm. The average of tan δ of the film 4 at -100 °C to -50 °C, as measured through a dynamic viscoelasticity test in a tensile mode at a frequency of 10 Hz and a heating rate of 2 °C/min, is 0.04 or more. The average of a tensile storage elastic modulus E' of the film 4 at −100 °C to −50 °C, as measured through the dynamic viscoelasticity test, is 3 GPa to 6 GPa.
Inventors:
YANO TAKANOBU (JP)
HIKITA TAKAMI (JP)
FUCHIDA TAKEHITO (JP)
CHO HONG CHAN (KR)
HIKITA TAKAMI (JP)
FUCHIDA TAKEHITO (JP)
CHO HONG CHAN (KR)
Application Number:
PCT/JP2021/018804
Publication Date:
December 30, 2021
Filing Date:
May 18, 2021
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
B32B17/10; G02B5/30; G09F9/00; G09F9/30; H01L27/32; H01L51/50; H05B33/02
Foreign References:
| JP2008273211A | 2008-11-13 | |||
| JP2019025899A | 2019-02-21 |
Attorney, Agent or Firm:
OKAMOTO, Hiroyuki et al. (JP)
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