JP2017534701A - タッチスクリーンパネル用粘着剤組成物、光学用粘着フィルム、及びタッチスクリーンパネル - Google Patents
タッチスクリーンパネル用粘着剤組成物、光学用粘着フィルム、及びタッチスクリーンパネル Download PDFInfo
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- JP2017534701A JP2017534701A JP2017513530A JP2017513530A JP2017534701A JP 2017534701 A JP2017534701 A JP 2017534701A JP 2017513530 A JP2017513530 A JP 2017513530A JP 2017513530 A JP2017513530 A JP 2017513530A JP 2017534701 A JP2017534701 A JP 2017534701A
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- Prior art keywords
- meth
- acrylate
- sensitive adhesive
- adhesive composition
- pressure
- Prior art date
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Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
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- C—CHEMISTRY; METALLURGY
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- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
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Abstract
Description
エチルヘキシルアクリレート85重量部及び架橋性モノマーとしてヒドロキシプロピルアクリレート15重量部を1リットルのガラス反応器に入れて熱重合させて、粘度35cPの光硬化性アクリル系共重合樹脂シロップを得た。前記光硬化性アクリル系共重合樹脂シロップに対して測定された水酸価の計算値は62mgKOH/gである。得られた光硬化性アクリル系共重合樹脂100重量部(固形分基準)に対し、2官能ブタジエンゴム硬化剤0.5重量部、光開始剤としてa,a−メトキシ−a−ヒドロキシアセトフェノン(Irgacure 651、Ciba社製)0.5重量部、架橋剤として1,6−ヘキサンジオールジアクリレート(HDDA)0.35重量部を混合した後に十分に攪拌して粘着剤組成物を製造した。次に、前記粘着剤組成物を100μm厚さで成膜し光硬化して硬化フィルムとして光学用粘着フィルムを製造した。
実施例1と同様の方法により光硬化性アクリル系共重合樹脂シロップを製造し、得られた光硬化性アクリル系共重合樹脂100重量部に対して2官能ブタジエンゴム硬化剤2.0重量部を用いたことを除いては、実施例1と同様の方法により光学用粘着フィルムを製造した。
実施例1と同様の方法により光硬化性アクリル系共重合樹脂シロップを製造し、得られた光硬化性アクリル系共重合樹脂100重量部に対して2官能ブタジエンゴム硬化剤の代わりに2官能ウレタン硬化剤0.5重量部を用いたことを除いては、実施例1と同様の方法により光学用粘着フィルムを製造した。
実施例1と同様の方法により光硬化性アクリル系共重合樹脂シロップを製造し、得られた光硬化性アクリル系共重合樹脂100重量部に対して2官能ブタジエンゴム硬化剤の代わりに2官能ウレタン硬化剤2.0重量部を用いたことを除いては、実施例1と同様の方法により光学用粘着フィルムを製造した。
実験例1
下記機器と下記条件により、前記実施例1−2及び比較例1−2で製造された光学用粘着フィルムの両面に電極を接触させた後に誘電定数k値を測定し、下記の表1に示す。
テスト周波数(Test Frequencies):20Hz−2MHz
電極直径(Electrode diameter):5mm
前記実施例1−2及び比較例1−2で製造された光学用粘着フィルムを用いてガラス/粘着フィルム/ガラスの積層構造を製作した後、恒温恒湿器(85℃/85%RH)に3日間放置後に肉眼で気泡発生の有無を確認した。
前記実施例1−2及び比較例1−2で製造された光学用粘着フィルムを用いてガラス/粘着フィルム/ガラスの積層構造を製作した後、(−40℃ 1時間/80℃ 1時間)を1サイクルにして30サイクルを行った後に肉眼で気泡発生の有無を確認し、下記の表1に示す。
110 ・・・光学用粘着フィルム
131 ・・・プラスチック基材層
132 ・・・導電層
130 ・・・導電性プラスチックフィルム層
150 ・・・カバーウィンドウ層
160 ・・・透明基板
170 ・・・液晶表示装置(LCD)
Claims (16)
- (メタ)アクリル酸エステル系光硬化性樹脂、及び酸素非含有2官能ジエン系ゴム硬化剤を含む粘着剤組成物。
- 前記酸素非含有2官能ジエン系ゴム硬化剤は両末端にジエン系2官能基を含む、請求項1に記載の粘着剤組成物。
- 前記酸素非含有2官能ジエン系ゴム硬化剤は、2官能ポリブタジエン、2官能イソプレンゴム、2官能イソブチレン−イソプレンゴム、2官能スチレン−ブチレンゴム及びこれらの組み合わせからなる群より選択された一つを含む、請求項1に記載の粘着剤組成物。
- 前記酸素非含有2官能ジエン系ゴム硬化剤の重量平均分子量は3,000〜20,000である、請求項1に記載の粘着剤組成物。
- 前記酸素非含有2官能ジエン系ゴム硬化剤は、周波数100kHzで測定された誘電定数k値が2.1〜2.5である、請求項1に記載の粘着剤組成物。
- 前記(メタ)アクリル酸エステル系光硬化性樹脂100重量部、及び
前記酸素非含有2官能ジエン系ゴム硬化剤0.1〜2重量部を含む、請求項1に記載の粘着剤組成物。 - 前記(メタ)アクリル酸エステル系光硬化性樹脂は、(メタ)アクリル酸エステルモノマー;及びヒドロキシ基含有モノマー、カルボキシル基含有モノマーまたは窒素含有モノマー及びこれらの組み合わせからなる群より選択された少なくとも一つを含む架橋性モノマーが共に共重合された樹脂である、請求項1に記載の粘着剤組成物。
- 前記(メタ)アクリル酸エステルモノマーはアルキル(メタ)アクリレートであり、前記アルキル(メタ)アクリレートのアルキルは線状もしくは分岐状のC1−C14アルキルである、請求項7に記載の粘着剤組成物。
- 前記(メタ)アクリル酸エステルモノマーは、メチル(メタ)アクリレート、エチル(メタ)アクリレート、n−プロピル(メタ)アクリレート、イソプロピル(メタ)アクリレート、n−ブチル(メタ)アクリレート、t−ブチル(メタ)アクリレート、sec−ブチル(メタ)アクリレート、ペンチル(メタ)アクリレート、2−エチルヘキシル(メタ)アクリレート、2−エチルブチル(メタ)アクリレート、n−オクチル(メタ)アクリレート、イソオクチル(メタ)アクリレート、イソボルニル(メタ)アクリレート、イソノニル(メタ)アクリレート及びこれらの組み合わせからなる群より選択された一つを含む、請求項7に記載の粘着剤組成物。
- 前記架橋性モノマーは、2−ヒドロキシエチル(メタ)アクリレート、2−ヒドロキシプロピル(メタ)アクリレート、4−ヒドロキシブチル(メタ)アクリレート、6−ヒドロキシヘキシル(メタ)アクリレート、8−ヒドロキシオクチル(メタ)アクリレート、2−ヒドロキシエチレングリコール(メタ)アクリレート、2−ヒドロキシプロピレングリコール(メタ)アクリレート、アクリル酸、メタクリル酸、2−(メタ)アクリロイルオキシ酢酸、3−(メタ)アクリロイルオキシプロピル酸、4−(メタ)アクリロイルオキシブチル酸、アクリル酸二量体、イタコン酸、マレイン酸、2−イソシアネートエチル(メタ)アクリレート、3−イソシアネートプロピル(メタ)アクリレート、4−イソシアネートブチル(メタ)アクリレート、(メタ)アクリルアミド、N−ビニルピロリドン、N−ビニルカプロラクタム及びこれらの組み合わせからなる群より選択された一つを含む、請求項7に記載の粘着剤組成物。
- 光開始剤をさらに含む、請求項1に記載の粘着剤組成物。
- 前記光開始剤は、ベンゾイン系開始剤、ヒドロキシケトン系開始剤、アミノケトン系開始剤、カプロラクタム及びこれらの組み合わせからなる群より選択された一つを含む、請求項11に記載の粘着剤組成物。
- 請求項1〜12のいずれか1項に記載の粘着剤組成物の光硬化物を含む粘着剤層を含む光学用粘着フィルム。
- 一面に導電層が形成された導電性プラスチックフィルム層、
前記導電層の上部に積層された請求項13に記載の光学用粘着フィルム、及び
前記光学用粘着フィルムの上部に積層されたカバーウィンドウ層を含むタッチスクリーンパネル。 - 前記導電性プラスチックフィルム層は、導電性金属酸化物層が一面に形成されたポリエチレンテレフタレートフィルムである、請求項14に記載のタッチスクリーンパネル。
- 前記カバーウィンドウ層は、透明なガラス代替プラスチックフィルムまたは強化ガラスである、請求項14に記載のタッチスクリーンパネル。
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KR101900529B1 (ko) | 2018-09-20 |
JP6490802B2 (ja) | 2019-03-27 |
CN106795397A (zh) | 2017-05-31 |
US10259977B2 (en) | 2019-04-16 |
US20170260428A1 (en) | 2017-09-14 |
KR20160033562A (ko) | 2016-03-28 |
CN106795397B (zh) | 2021-02-23 |
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