Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ADHESIVE SHEET AND FLEXIBLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/166775
Kind Code:
A1
Abstract:
Provided is an adhesive sheet 1 including a single-layered or multi-layered adhesive agent layer 11, in which at least one of layers constituting the adhesive agent layer 11 comprises an adhesive agent comprising a modified cyclodextrin. When a shear stress of 2000 kPa is applied to the adhesive agent layer 11 for 600 seconds, the creep amount is 5% or more relative to the thickness of the adhesive agent layer 11. When a creep amount obtained when a shear stress of 2000 kPa is applied to the adhesive agent layer 11 for 600 seconds is defined as C1 and a creep amount obtained when subsequently the shear stress applied to the adhesive agent layer 11 is changed to 0 kPa and the creep amount is measured after 20 seconds is defined as C2, the creep change ratio calculated in accordance with formula (I) is 60% or more. A flexible device in which the adhesive sheet 1 is used is less likely to have a curved mark left thereon when the flexible device is released from a curved state.　(I): Creep change ratio (%) = (1-C2/C1)×100

Inventors:
KOSABA SHO (JP)
ARAI TAKAYUKI (JP)
KASHIO MIKIHIRO (JP)
Application Number:
PCT/JP2022/037116
Publication Date:
September 07, 2023
Filing Date:
October 04, 2022
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
LINTEC CORP (JP)
International Classes:
C09J11/06; C09J7/38; C09J183/04
Domestic Patent References:
WO2015151224A12015-10-08
Foreign References:
JP2018524423A2018-08-30
JP2020513451A2020-05-14
JP2021088698A2021-06-10
JP2019172932A2019-10-10
JP2020002203A2020-01-09
JP2019137741A2019-08-22
JPH07300501A1995-11-14
Attorney, Agent or Firm:
HAYAKAWA Yuzi et al. (JP)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: SHEET WITH SENSOR

Next Patent: APPEARANCE ANALYSIS SYSTEM, APPEARANCE ANALYSIS METHOD, AND PROGRAM