Title:
PRESSURE-SENSITIVE ADHESIVE COMPOSITION, PRESSURE-SENSITIVE ADHESIVE LAYER, AND PRESSURE-SENSITIVE SHEET
Document Type and Number:
WIPO Patent Application WO/2022/070900
Kind Code:
A1
Abstract:
Provided are a pressure-sensitive adhesive composition and a pressure-sensitive sheet with which: both a low dielectric constant and a low dielectric loss in a high frequency band, and a dielectric constant that is high to some extent in a low frequency band are achieved; and a pressure-sensitive adhesive layer, suitable for bonding members that constitute a millimeter wave antenna arranged on a display, can be formed. This pressure-sensitive adhesive composition according to the first aspect of the present invention has: a dielectric constant of 2 to 5 at a frequency of 28 GHz; a dielectric constant of 2 to 8 at a frequency of 100 kHz; and a dielectric loss of 0.0001 to 0.05 at a frequency of 28 GHz. Additionally, this pressure-sensitive adhesive composition according to the second aspect of the present invention has: a dielectric constant of 2 to 5 at a frequency of 60 GHz; a dielectric constant of 2 to 8 at a frequency of 100 kHz; and a dielectric loss of 0.0001 to 0.05 at a frequency of 60 GHz.
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Inventors:
KATAMI HIROFUMI (JP)
SASAHARA KAZUKI (JP)
NAKANO TAKESHI (JP)
NONAKA TAKAHIRO (JP)
TAKAHASHI TOMOKAZU (JP)
SASAHARA KAZUKI (JP)
NAKANO TAKESHI (JP)
NONAKA TAKAHIRO (JP)
TAKAHASHI TOMOKAZU (JP)
Application Number:
PCT/JP2021/033796
Publication Date:
April 07, 2022
Filing Date:
September 14, 2021
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
C09J201/00; C09J7/38; H01Q1/22; H01Q1/38; H01Q13/08
Domestic Patent References:
| WO2014147903A1 | 2014-09-25 | |||
| WO2020071390A1 | 2020-04-09 |
Foreign References:
| CN110982489A | 2020-04-10 | |||
| CN110708406A | 2020-01-17 | |||
| JP2018035226A | 2018-03-08 | |||
| JP2019218452A | 2019-12-26 | |||
| JP2013151638A | 2013-08-08 | |||
| JP2019186942A | 2019-10-24 |
Attorney, Agent or Firm:
GOTO & CO. (JP)
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