MULTILAYERED PRESSURE-SENSITIVE ADHESIVE LAYER, MULTILAYERED PRESSURE-SENSITIVE ADHESIVE LAYER WITH SEPARATOR ATTACHED THERETO AND PRODUCTION METHOD THEREFOR, TACK-TYPE OPTICAL FILM, TACK-TYPE OPTICAL FILM WITH SEPARATOR ATTACHED THERETO AND PRODUCTION METHOD THEREFOR, AND IMAGE DISPLAY DEVICE

Title:

Document Type and Number:

WIPO Patent Application WO/2021/182340

Kind Code:

A1

Abstract:

A purpose of the present invention is to provide a multilayered pressure-sensitive adhesive layer which has an increased thickness and, despite this, is reduced in surface unevenness which may affect visibility. This multilayered pressure-sensitive adhesive layer comprises two or more pressure-sensitive adhesive layers directly superposed on each other and has a total thickness of 20-100 μm and an ISC-S value of 50 or less. The pressure sensitive adhesive layers each have a thickness of 10-20 μm.

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Inventors:

MORIMOTO YU (JP)
HANDA ITARU (JP)
NAKATA MIE (JP)
KIMURA KEISUKE (JP)

Application Number:

PCT/JP2021/008776

Publication Date:

September 16, 2021

Filing Date:

March 05, 2021

Export Citation:

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Assignee:

NITTO DENKO CORP (JP)

International Classes:

B32B27/00; C09J7/38; C09J133/06; C09J201/00; G02B5/30; G09F9/00; H01L27/32; H01L51/50; H05B33/00

Foreign References:

JP2013100447A	2013-05-23
JP2012185519A	2012-09-27
JP2008163263A	2008-07-17
JP2014008694A	2014-01-20
JP2019191282A	2019-10-31
JP2010070585A	2010-04-02
JP2013174749A	2013-09-05

Attorney, Agent or Firm:

UNIUS PATENT ATTORNEYS OFFICE (JP)

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