ACRYLIC ADHESIVE COMPOSITION, ADHESIVE OBTAINED USING THE SAME, POLARIZING PLATE ADHESIVE, AND IMAGE DISPLAY DEVICE
To provide an acrylic adhesive composition with which it is possible to obtain an adhesive that exhibits excellent reworkability over a long period, and that does not undergo whitening due to heat and humidity even when exposed to a high-temperature, high-humidity environment when used as an adhesiv...
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Sprache: | eng ; jpn |
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Zusammenfassung: | To provide an acrylic adhesive composition with which it is possible to obtain an adhesive that exhibits excellent reworkability over a long period, and that does not undergo whitening due to heat and humidity even when exposed to a high-temperature, high-humidity environment when used as an adhesive for pasting together a polarizing plate (protective film) and a liquid crystal cell (glass) during the manufacturing of a liquid crystal display.SOLUTION: The acrylic adhesive composition contains an acrylic resin (A) and a silane coupling agent (B), which contains at least one each of a reactive functional group and an alkoxy group in a structure, wherein the acrylic resin (A) contains 5-50 wt.% of structural moieties derived from a hydroxyl group-containing monomer, and the silane coupling agent (B) contains an oligomer-type silane coupling agent (B1) in which the alkoxy group content is 15 wt.% or less.SELECTED DRAWING: None
【課題】液晶表示装置の製造時に、偏光板(保護フィルム)と液晶セル(ガラス)との貼り合わせに用いる粘着剤として使用した際に、長期間にわたり優れたリワーク性を示し、かつ、高温高湿環境に曝した場合でも湿熱白化が起こらない粘着剤を得ることができるアクリル系粘着剤組成物を提供する。【解決手段】アクリル系樹脂(A)及び構造中に反応性官能基とアルコキシ基をそれぞれ1つ以上含有するシランカップリング剤(B)を含有するアクリル系粘着剤組成物であって、アクリル系樹脂(A)が、水酸基含有モノマー由来の構造部位を5〜50重量%含むアクリル系樹脂であり、シランカップリング剤(B)が、アルコキシ基含有量が15重量%以下であるオリゴマー型シランカップリング剤(B1)を含有する。【選択図】なし |
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