Title:
ADHESIVE COMPOSITION, ADHESIVE SHEET, OPTICAL LAMINATE, AND IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/244557
Kind Code:
A1
Abstract:
This adhesive composition includes a (meth) acrylic-based polymer (A) as a main component thereof and also includes a crosslinking agent (B). The crosslinking agent (B) is blended in the amount of at least 5 parts by weight relative to 100 parts by weight of the (meth) acrylic-based polymer (A). When a polymer (C) in the crosslinking agent (B) is assumed, the Hansen solubility parameter (HSP) distance Ra between the (meth) acrylic-based polymer (A) and the polymer (C) is no more than 12.3. This adhesive composition can suppress dimensional variation in optical film in an optical laminate and is suitable for forming adhesive sheets that ensure durability.
Inventors:
NAGATA MIZUE (JP)
YAMAMOTO SATOSHI (JP)
KUZE MASAHIRO (JP)
TOYAMA YUSUKE (JP)
YAMAMOTO SATOSHI (JP)
KUZE MASAHIRO (JP)
TOYAMA YUSUKE (JP)
Application Number:
PCT/JP2022/017652
Publication Date:
November 24, 2022
Filing Date:
April 12, 2022
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
C09J133/00; C09J7/38; C09J175/04; G02B5/30
Domestic Patent References:
| WO2010079653A1 | 2010-07-15 | |||
| WO2019202938A1 | 2019-10-24 |
Foreign References:
| JP2010196003A | 2010-09-09 | |||
| JP2016176001A | 2016-10-06 | |||
| JP2013199579A | 2013-10-03 | |||
| JP2011085887A | 2011-04-28 | |||
| JP2014198745A | 2014-10-23 | |||
| JP2021071716A | 2021-05-06 |
Attorney, Agent or Firm:
KAMADA Koichi (JP)
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