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Title:
OPTICAL TRANSPARENT ADHESIVE COMPOSITION, OPTICAL TRANSPARENT ADHESIVE FILM COMPRISING SAME, AND FLAT PANEL DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/052263
Kind Code:
A1
Abstract:
The present invention provides an optical transparent adhesive composition, an optical transparent adhesive film comprising the same, and a flat panel display device, the optical transparent adhesive composition comprising a photo-curable (meth)acrylate copolymer and a photo-polymerization initiator, wherein the photo-curable (meth)acrylate copolymer comprises, relative to the total weight of constituent units contained in the copolymer, 95-99.9 wt% of a hydroxy group-containing acryl-based copolymer and 0.1-5 wt% of an isocyanate group-containing (meth)acrylate-based monomer and the hydroxy group-containing acryl-based copolymer and the isocyanate group-containing (meth)acrylate-based monomer form a urethane bond, and wherein the hydroxy group-containing acryl-based copolymer comprises, relative to the total weight of monomers contained in the copolymer, 50-95 wt% of an acrylate monomer having a glass transition temperature (Tg) of -45 to -60℃ and having a caprolactone-based structure and 5-50 wt% of a hydroxy group-containing alkyl acrylate monomer and the weight average molecular weight of the hydroxy group-containing acryl-based copolymer is 200,000 to 1,000,000.

Inventors:
CHOI HAN-YOUNG (KR)
YU BYUNG-MUK (KR)
PARK YIL-SUNG (KR)
JUNG KYONG-MOON (KR)
Application Number:
PCT/KR2017/010206
Publication Date:
March 22, 2018
Filing Date:
September 18, 2017
Export Citation:
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Assignee:
DONGWOO FINE CHEM CO LTD (KR)
International Classes:
C09J133/10; C09J133/12; G02B5/30; G02F1/1335
Domestic Patent References:
WO2016008130A12016-01-21
Foreign References:
JP2015131925A2015-07-23
US20110109848A12011-05-12
JPH11246828A1999-09-14
JPS62148513A1987-07-02
JPS62148514A1987-07-02
Attorney, Agent or Firm:
HANYANG PATENT FIRM (KR)
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