JP7346257B2 - 片面圧力感受性接着テープ - Google Patents
片面圧力感受性接着テープ Download PDFInfo
- Publication number
- JP7346257B2 JP7346257B2 JP2019206616A JP2019206616A JP7346257B2 JP 7346257 B2 JP7346257 B2 JP 7346257B2 JP 2019206616 A JP2019206616 A JP 2019206616A JP 2019206616 A JP2019206616 A JP 2019206616A JP 7346257 B2 JP7346257 B2 JP 7346257B2
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- JP
- Japan
- Prior art keywords
- layer
- tape
- sensitive adhesive
- pressure sensitive
- meth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
-
- 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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Landscapes
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Description
片面圧力感受性テープは、基体と、基体の表面に配置された反射性金属層と、反射性金属層の上に配置された圧力感受性接着層と、熱可塑性ポリマー層と、熱可塑性ポリマー層の表面に配置された光遮断層とを備え、光遮断層は、反射性金属層が配置された基体表面とは反対の基体表面にドライラミネートされる。
液晶ディスプレイ用の光ガイドパネルの製造方法は、片面圧力感受性接着テープを光ガイドパネルの外周の少なくとも一部に接着する工程を含む。
以下は、図面の簡単な説明であり、図面は、本明細書で説明する例示的な実施形態を示すことを目的とし、限定することを目的としていない。類似する要素は、添付の図面において同様に参照符号が付されている。
基体の材料は、所望する特性を実現するために添加物を更に含んでもよい。添加物の例には、充填剤、難燃剤、劣化防止剤、帯電防止剤、軟化剤、紫外線吸収剤、抗酸化剤、可塑剤、界面活性剤、およびそれらの組み合わせが含まれる。
熱可塑性ポリマー層の表面に配置された光遮断層は、光遮断性能を示す任意の層であってよい。つまり、低い光透過性を備える。光遮断層は、黒色で着色された層、または白色で着色された層であり、任意の好適な方法で形成され得る。
光遮断層が黒色を示すインク層、より好適には黒色を示す印刷された層である場合には、黒色に着色されたインク層は、黒色の着色剤を含む黒色インク組成物で形成される。
黒色の印刷層に使用される着色成分の例には、カーボンブラック、アセチレンブラック、グラファイト、酸化鉄、酸化銅、アニリンブラック、活性炭、及びそれらの組み合わせが含まれる。バインダーレジンの例には、ポリウレタンレジン、フェノールレジン、エポキシレジン、アクリル酸レジン、ポリエステルレジン、ポリオレフィンレジン、天然ゴム、スチレン-ブタジエンゴム、ブタジエンゴム、エチレン-プロピレンゴム、及びそれらの組み合わせが含まれる。いくつかの実施形態では、ポリウレタンレジンが好ましい。硬化剤の例には、イソシアナート硬化剤、エポキシ硬化剤、メラミン硬化剤、アジリジン硬化剤、およびそれらの組み合わせが含まれる。インク組成物の各成分の割合は、必要に応じて決めることができる。
インク組成物とともに使用される印刷方法の例には、グラビア印刷法、フレキソ印刷法、オフセット印刷法、凸版印刷法(relief printing method)、スクリーン印刷法、ステンシル印刷法、活版印刷法(letterpress printing method)、などが含まれる。
(実施例)
テープの光透過性と反射性は、以下のテスト方法により判定した。360~740nmの波長範囲で10nm毎にサンプルの透過性と反射性とを判定する為に、50平方mmの多層テープのテストサンプルをスペクトロメーターに配置した。スペクトロメーターは、光源としてキセノンランプを搭載し10度の視野角を用いるコニカミノルタ社(KONICA MINOLTA (日本))のCM-5であった。測定は、各サンプルについて3回行った。
(実施例1)片面圧力感受性接着テープ
図1に示すように、多層の片面圧力感受性接着層を調整した。
図2に模式的に示したように、実施例1に従って製造された片面圧力感受性テープは、光ガイドパテルの外周に接着され、液晶ディスプレイに接着された。
態様1では、片面圧力感受性接着テープは、基体と、基体表面に配置された反射性金属層と、反射性金属層の上に配置された圧力感受性接着層と、熱可塑性ポリマー層と、熱可塑性ポリマー層の表面に配置された光遮断層と、光遮断層が、反射性金属層が配置されている基体表面とは逆の基体表面にドライラミネートされていることとからなる。
態様3では、態様1または2のテープにおいて、圧力感受性接着剤は、アクリル酸接着剤、ゴム接着剤、シリコーン接着剤、ウレタン接着剤、またはそれらの組みあわせである。
態様5では、態様1~4のいずれか1つのテープにおいて、反射性金属層は、物理蒸着、スパッタリング、熱蒸着、化学蒸着、又はそれらの組み合わせによって配置される。
態様7では、光遮断層は、黒色コーティングまたは白色コーティングを備える。
態様10では、態様1~9のいずれか1つのテープにおいて、圧力感受性接着層は、光ガイドパネルの外周の少なくとも一部に直接的に接触する。
態様13は、態様12の物品において、物品は、光ガイドパネル、液晶ディスプレイ、テレビ、携帯電話、コンピューターのモニター、またはタブレットである。
態様15は、フレームを形成するために、態様1~11のいずれか1つのテープの片面圧力感受性接着層を光ガイドパネルの外周の少なくとも一部に接着する工程を備える液晶ディスプレイ用光ガイドパネルの製造方法である。
態様18は、態様15~17のいずれか1つの方法において、熱可塑性ポリマー層は、ポリウレタンからなる。
引用されている特許文献、特許出願、およびその他の引例は、引用することによりここにその全てを援用する。しかしながら、本願の用語と組み込んだ引例の用語とが一致しない場合、または矛盾する場合には、本願の用語が、援用する引例の矛盾する用語に対して優先される。
Claims (18)
- 基体と、
前記基体の表面に配置された反射性金属層と、
前記反射性金属層の上に配置された圧力感受性接着層と、
熱可塑性ポリマー層と、
前記熱可塑性ポリマー層の表面に配置された光遮断層と、を備え、
前記光遮断層は、前記反射性金属層が配置された前記表面とは反対の前記基体の表面にドライラミネートされている、片面圧力感受性接着テープ。 - 前記基体は、ポリエチレンテレフタラート、ポリエチレンナフタラート、ポリメチレンメタクリレート、およびそれらの組み合わせのうちの少なくともいずれか1つである、請求項1に記載のテープ。
- 前記圧力感受性接着層は、アクリル酸接着剤、ゴム接着剤、シリコーン接着剤、ウレタン接着剤、及びそれらの組み合わせのうちの少なくともいずれか1つである、請求項1または2に記載のテープ。
- 前記反射性金属層は、アルミニウム、銀、銅、白金、ニッケル、およびそれらの組み合わせのうちの少なくとも1つである、請求項1~3のいずれか一項に記載のテープ。
- 前記反射性金属層は、物理蒸着、スパッタリング、熱蒸発、化学蒸着、およびそれらの組み合わせのうちの少なくとも1つである、請求項1~4のいずれか一項に記載のテープ。
- 前記反射性金属層は、1nm~100nmの厚みを有する、請求項1~5のいずれか一項に記載のテープ。
- 前記光遮断層は、黒色のコーティング、または白色のコーティングからなる、請求項1~6のいずれか一項に記載のテープ。
- 前記熱可塑性ポリマー層は、ポリウレタン、ポリエチレン、ポリエステル、またはそれらの組み合わせであり、好適には、熱可塑性ポリマー層は、ポリウレタンからなる、請求項1~7のいずれか一項に記載のテープ。
- 前記圧力感受性接着層に配置された除去可能なリリース層をさらに備える、請求項1~8のいずれか一項に記載のテープ。
- 前記圧力感受性接着層は、光ガイドパネルの外周の少なくとも一部に直接的に接している、請求項1~9のいずれか一項に記載のテープ。
- 前記テープは、0.1%以下の透過率および80%以上の少なくとも1つの表面の反射率のうちの少なくともいずれか一方を有する、請求項1~10のいずれか一項に記載のテープ。
- 請求項1~11のいずれか一項に記載のテープからなる物品。
- 前記物品は、光ガイドパネル、液晶ディスプレイ、テレビ、携帯電話、コンピューターのモニター、またはタブレットである、請求項12に記載の物品。
- 前記物品は、低ベゼルの物品である、請求項12または13に記載の物品。
- フレームを形成するために、請求項1~11のいずれか一項に記載の前記テープの前記圧力感受性接着層を光ガイドパネルの外周の少なくとも一部に接着する工程を備える、液晶ディスプレイ用光ガイドパネルの製造方法。
- 前記光ガイドパネルを液晶ディスプレイに取り付ける工程、または、前記片面圧力感受性接着テープからリリース層を除去する工程をさらに備える、請求項15に記載の方法。
- 取り付け後、前記熱可塑性ポリマー層は、前記液晶ディスプレイに直接的に接触しない、請求項16に記載の方法。
- 前記熱可塑性ポリマー層は、ポリウレタンからなる、請求項15~17のいずれか一項に記載の方法。
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GB2580211A (en) | 2020-07-15 |
US11434395B2 (en) | 2022-09-06 |
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TW202024265A (zh) | 2020-07-01 |
DE102019130343A1 (de) | 2020-06-25 |
JP2020100808A (ja) | 2020-07-02 |
TWI820272B (zh) | 2023-11-01 |
GB2580211B (en) | 2022-11-30 |
GB201916356D0 (en) | 2019-12-25 |
KR20200078352A (ko) | 2020-07-01 |
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