Composition for optical adhesive agent an adhesive agent prepared from the composition and a method for preparing the adhesive agent

Provided is an optical adhesive to increase quality of a product. According to one embodiment of the present invention, an optical adhesive is manufactured from an optical adhesive composition comprising: a partially polymerized acrylic copolymer of at least one monomer selected from glass transitio...

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Bibliographische Detailangaben
Hauptverfasser: CHO MINJEONG, NAM BYUNGKI, JEON HYOUNGBIN, TAK MYOUNGHO, KIM MINJUNG
Format: Patent
Sprache:eng ; kor
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Zusammenfassung:Provided is an optical adhesive to increase quality of a product. According to one embodiment of the present invention, an optical adhesive is manufactured from an optical adhesive composition comprising: a partially polymerized acrylic copolymer of at least one monomer selected from glass transition (meth)acrylic monomers, high-temperature glass transition (meth)acrylic monomers, and (meth)acrylic monomers having a hydrophilic group; and a photoinitiator. After a magnesium plate is attached to one side of a light-curable optical adhesive from which a release film supporting both sides has been removed and a polarizing film is attached to the other side, air bubbles on a curved portion are not observed with the naked eye under a condition in which a curved surface of a curved support is maintained at 85℃. 광학용 점착제가 제공된다. 일 실시예에 있어서, 유리전이(메트)아크릴 단량체, 고온 유리전이(메트)아크릴 단량체, 및 친수성기를 갖는 (메트)아크릴 단량체로부터 선택되는 하나 이상의 단량체들의 부분적으로 중합된 아크릴 공중합체와 광개시제를 포함하는 광학용 점착제용 조성물로부터 제조된 광학용 점착제에 있어서, 양면을 지지하고 있는 이형필름이 제거된 상기 광 경화형 광학용 점착제의 한 면에는 마그네슘판을 부착하고, 나머지 한 면에는 편광필름을 부착한 후, 곡면 지지체의 곡면이 유지된 상태 및 85℃ 조건에서 상기 곡면 부위의 기포가 육안으로 관찰되지 않을 수 있다.