Title:
粘着シート、粘着部品、フレキシブル画像表示装置部材、積層体、画像表示装置
Document Type and Number:
Japanese Patent JP7243758
Kind Code:
B2
Abstract:
To provide a novel adhesive sheet which can strongly adhere to a member sheet having high polarity, has transparency and is also excellent in flexibility.SOLUTION: There is provided an adhesive sheet which contains an adhesive having a urethane polymer chain having a polyether polyol component and a molecular chain having a urethane bond derived from an isocyanate component and an acrylic polymer chain having a molecular chain derived from an alkyl (meth)acrylate ester component, wherein (I) the storage elastic modulus at -20°C (G'(-20°C)) obtained by the dynamic viscoelasticity measurement in the shear mode at a frequency of 1 Hz is 300 kPa or less and (II) the storage elastic modulus at 60°C (G'(60°C)) obtained by the dynamic viscoelasticity measurement in the shear mode at a frequency of 1 Hz is 10 kPa or more.SELECTED DRAWING: None
Inventors:
Taiki Tabata
Seiya Minemoto
Seiya Minemoto
Application Number:
JP2021075764A
Publication Date:
March 22, 2023
Filing Date:
April 28, 2021
Export Citation:
Assignee:
Mitsubishi Chemical Corporation
International Classes:
C09J133/06; B32B7/12; B32B27/00; B32B27/30; B32B27/40; C09J7/35; C09J7/38; C09J11/06; C09J151/00; C09J153/00; C09J175/08
Domestic Patent References:
| JP2018039999A | ||||
| JP2017119801A | ||||
| JP2019131680A | ||||
| JP2018062595A |
Other References:
Elise Degrandi-Contraires、ほか5名,Mechanical Properties of Adhesive Films Obtained from PU-Acrylic Hybrid Particles,Macromolecules,米国,2011年04月26日,Vol.44 No.8,Page.2643-2652
Attorney, Agent or Firm:
Patent Attorney Corporation Ichizawa / Kawada International Patent Office
Previous Patent: Control device, control system, method, program, and vehicle
Next Patent: Electronic display device and display control method
Next Patent: Electronic display device and display control method