PHOTOCURABLE SHEET-TYPE ADHESIVE COMPOSITION FOR OPTICAL USE

WIPO Patent Application WO/2013/122144

A1

[Problem] The purpose of the present invention is to provide a photocurable sheet-type adhesive composition for optical use, which can be used to adhere together a cover glass and a touch panel or a touch panel and a display module, for example, and which has a highly reliable external appearance and storage stability even in high-temperatures and high-humidity. [Solution] The present invention is a photocurable sheet-type adhesive composition for optical use, said composition comprising components (A)-(D): (A) 100 parts by mass of a urethane (meth)acrylate oligomer which has a weight-average molecular weight of 20,000-100,000; (B) 3-70 parts by mass of a phenoxy resin having a glass transition temperature of 50-120°C; (C) 0.1-10 parts by mass of a photopolymerization initiator; and (D) 1-50 parts by mass of a (meth)acrylate monomer comprising 8-30 ether bonded repeating blocks in a molecule, and containing at least one (meth)acryloyl group in a molecule.

WO/2023/176607	ADHESIVE SHEET, FLEXIBLE IMAGE DISPLAY MEMBER, AND FLEXIBLE IMAGE DISPLAY DEVICE
JP2004082295	DRILLING METHOD AND FIXING ADHESIVE TAPE USED THEREFOR
WO/2023/155400	POLYURETHANE POTTING ADHESIVE

KOGA YOSHIAKI (JP)
ARAI YOSHIHIDE (JP)
NEMOTO TAKASHI (JP)

PCT/JP2013/053533

August 22, 2013

February 14, 2013

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THREE BOND CO LTD (JP)

C09J175/14; C08F290/06; C09J4/02; C09J7/10; C09J11/06; C09J109/00; C09J153/00; C09J169/00; C09J171/12; G09F9/00

WO2010038366A1	2010-04-08
WO2011115224A1	2011-09-22

JP2008001739A	2008-01-10
JP2001163931A	2001-06-19
JP2009155503A	2009-07-16
JP2013018871A	2013-01-31

HATTA & ASSOCIATES (JP)
Hatta international patent business corporation (JP)

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