ADHESIVE, ADHESIVE SHEET AND OPTICAL ADHESIVE SHEET

To provide an adhesive sheet which can satisfy high adhesion and heat resistance that are required qualities necessary for a splash prevention film even when the sheet is thin, is required for a housing glass film, and is also excellent in dent resistance.SOLUTION: An adhesive composition contains a...

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Bibliographische Detailangaben
Hauptverfasser: NAKAMURA NAOTOSHI, FUKUTA KATSUNORI
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide an adhesive sheet which can satisfy high adhesion and heat resistance that are required qualities necessary for a splash prevention film even when the sheet is thin, is required for a housing glass film, and is also excellent in dent resistance.SOLUTION: An adhesive composition contains an acrylic copolymer (A), an epoxy resin (B) and a curing agent (C), in which the acrylic copolymer (A) is a copolymer of a monomer mixture containing monomers (a-1) to (a-3), contains 10-50 mass% of the monomer (a-1), 40-80 mass% of the monomer (a-2) and 5-10 mass% of the monomer (a-3) in 100 mass% of the monomer mixture, and the epoxy resin (B) is a bisphenol type epoxy resin having a weight average molecular weight (Mw) of 200-1,000.SELECTED DRAWING: None 【課題】飛散防止フィルムに必要な要求品質である、高い接着性と、耐熱性とを、薄膜であっても満足することができ、かつ筐体ガラスフィルムに必要な、耐打痕性にも優れる粘着シートを作製できる粘着剤の提供。【解決手段】アクリル系共重合体(A)、エポキシ樹脂(B)及び、硬化剤(C)を含み、アクリル系共重合体(A)は、モノマー(a-1)~(a-3)を含むモノマー混合物の共重合体であり、前記モノマー混合物100質量%中にモノマー(a-1)を10~50質量%、モノマー(a-2)を40~80質量%、モノマー(a-3)を5~10質量%含有し、エポキシ樹脂(B)は、重量平均分子量(Mw)が200~1000のビスフェノール型エポキシ樹脂である、粘着剤組成物により解決される。【選択図】 なし