Title:
光学用粘着シート
Document Type and Number:
Japanese Patent JP7397667
Kind Code:
B2
Abstract:
The present invention addresses the problem of providing an optical adhesive sheet that includes a rubber block copolymer but still has excellent optical characteristics and whitening resistance. An optical adhesive sheet that includes an adhesive layer (A) that contains a styrene block copolymer. The adhesive layer (A) has a softener content of 0–25 mass% relative to 100 mass% of the adhesive layer (A). The adhesive layer (A) is phase-separated into spherical phases and other phases.
Inventors:
Nobuyoshi Yasui
Yuichi Sumii
Mariko Noda
Daisho Ichikawa
Kakehi Takamaro
Katsunori Toyoshima
Yuichi Sumii
Mariko Noda
Daisho Ichikawa
Kakehi Takamaro
Katsunori Toyoshima
Application Number:
JP2019551717A
Publication Date:
December 13, 2023
Filing Date:
June 25, 2019
Export Citation:
Assignee:
Sekisui Chemical Co.,Ltd.
International Classes:
C09J7/38; B32B27/00; B32B27/30; C09J11/06; C09J11/08; C09J153/02
Domestic Patent References:
| JP2015227395A | ||||
| JP2012512267A |
Foreign References:
| WO2016006352A1 |
Attorney, Agent or Firm:
Saegusa International Patent Office
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