Title:
発泡シート
Document Type and Number:
Japanese Patent JP7174480
Kind Code:
B2
Abstract:
To provide a foam sheet which has extremely high point impact absorption performance and is thin, and an organic EL display panel or an organic EL display panel which use the foam sheet and has strong resistance to impact.SOLUTION: A foam sheet contains an acrylic resin and an isocyanurate compound as a crosslinking agent, in which a thickness of the foam sheet is 0.03 mm or more and 0.5 mm or less, apparent density of the foam sheet is 0.50 g/cmor more and less than 1.10 g/cm, a peak of loss tangent that is a ratio of storage elastic modulus to loss elastic modulus at a frequency of 1 Hz in dynamic viscoelasticity measurement of the foam sheet is -50°C to 30°C, and a peak height of the loss tangent is 0.8 or more.SELECTED DRAWING: None
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Inventors:
Takuya Nagasawa
Application Number:
JP2018138554A
Publication Date:
November 17, 2022
Filing Date:
July 24, 2018
Export Citation:
Assignee:
Inoac Technology Research Institute Co., Ltd.
Inoac Corporation
Inoac Corporation
International Classes:
C08J9/30; C09J7/24; C09J7/26; C09J7/38; G09F9/30
Domestic Patent References:
| JP2015042708A | ||||
| JP6366776B2 |
Foreign References:
| WO2020013258A1 |
Attorney, Agent or Firm:
Atsushi Ito