JP5154834B2 - 異方導電性接着剤フィルム及び異方導電性接着剤フィルムの製造方法 - Google Patents
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Description
初期剥離力の測定は、上述のように得られた剥離フィルムの片面に、アクリル系粘着フィルム(T4090、ソニーケミカル社製)を貼り合わせ、長さ200mmで幅50mmの短冊状にカットし、得られた短冊状サンプルに2kgの荷重を載せたまま70℃で20時間エージングした。エージング終了後、25℃でT型剥離試験を行い、初期剥離力(N/5cm)を剥離強度試験機(テンシロン、オリエンテック社製)を用いて測定した。尚、剥離力の試験においては、アクリル系粘着フィルムを用いても、異方導電性接着材料を用いても同様の結果が得られる。
初期残留接着率の測定は、まず、上述の初期剥離力の試験において引き剥がしたアクリル系粘着フィルムを、平滑なステンレス板にハンドローラで貼り付け、アクリル系粘着フィルムとこのステンレス板との剥離力を上述と同様に測定した(残留剥離力)。また、これとは別に未使用のアクリル系粘着フィルムを平滑なステンレス板にハンドローラで貼り付け、未使用のアクリル系粘着フィルムとこのステンレス板との剥離力を上述と同様に測定した(基準剥離力)。そして、基準剥離力に対する残留剥離力の割合として初期残留接着率(%)を算出した。
異方性導電膜剥離力の測定は、得られた剥離フィルムの片面に、異方性導電膜ADH(エポキシ系硬化剤を含む反応性の粘着液)を塗工し、80℃のオーブンで1分間保持し、溶媒除去した後、アクリル系粘着フィルム(PPテープ、日東電工社製)を貼り合わせ、長さ200mmで幅50mmの短冊状にカットし、25℃でT型剥離試験を行い、初期剥離力(N/5cm)を剥離強度試験機(テンシロン、オリエンテック社)を用いて測定した。
耐熱性評価は、得られた剥離フィルムの寸法を測定すること、及び目視にて確認することにより、剥離層を形成するための熱硬化の際の変形の有無を評価することで、耐熱性の評価を行った。
生分解性評価は、得られた剥離フィルムをコンポスト内に埋設し、80℃で7日処理した後、目視にて生分解性の可否を判断した(JISK6953(ISO14855)参照)。
スリット性評価は、得られた剥離フィルム上に異方導電性接着材料により接着剤層を形成してなる異方導電性接着剤フィルムを用い、これを所望の幅に裁断し、断面観察により、切れ痕や切断面の状態を確認するとともに、紙粉(切断粉)の有無等を確認し、また、裁断した異方導電性接着剤フィルムをリール等に巻回して得られたロール体の断面観察を行うことにより、スリット性(切断性)の可否を判断した。
Claims (12)
- 一方の面に剥離層が設けられた剥離フィルムと、
上記剥離フィルム上に上記剥離層を介して設けられ、異方導電性接着材料により形成された接着剤層とを備え、
上記剥離フィルムは、L乳酸及びD乳酸からなるポリ乳酸を用い、上記D乳酸は、上記L乳酸に対して1〜5重量%混合された生分解性フィルムを基材とし、上記基材上に100℃以上で硬化する熱硬化性のシリコーン樹脂からなる上記剥離層が設けられている異方導電性接着剤フィルム。 - 上記剥離フィルムは、非収縮性の生分解性フィルムを基材とする請求項1記載の異方導電性接着剤フィルム。
- 上記剥離層は、上記基材上に上記シリコーン樹脂を塗布し、100〜160℃で硬化されることにより、上記剥離フィルムの一方の面に設けられている請求項1又は請求項2に記載の異方導電性接着剤フィルム。
- 一方の面に第1の剥離層が設けられた第1の剥離フィルムと、
上記第1の剥離フィルム上に上記第1の剥離層を介して設けられ、異方導電性接着材料により形成された接着剤層と、
上記第1の剥離層と剥離力が異なる第2の剥離層が一方の面に設けられ、上記接着剤層の上記第1の剥離フィルム側の面と反対側の面に、上記第2の剥離層を介して設けられた第2の剥離フィルムとを備え、
上記第1及び第2の剥離フィルムは、L乳酸及びD乳酸からなるポリ乳酸を用い、上記D乳酸は、上記L乳酸に対して1〜5重量%混合された生分解性フィルムを基材とし、上記それぞれの基材上に100℃以上で硬化する熱硬化性のシリコーン樹脂からなる上記第1の剥離層、上記第2の剥離層が設けられている異方導電性接着剤フィルム。 - 上記剥離フィルムは、非収縮性の生分解性フィルムを基材とする請求項4記載の異方導電性接着剤フィルム。
- 上記第1及び第2の剥離層は、上記それぞれの基材上に上記シリコーン樹脂を塗布し、100〜160℃で硬化されることにより、上記第1及び第2の剥離フィルムの一方の面に設けられている請求項4又は請求項5に記載の異方導電性接着剤フィルム。
- 剥離フィルムの基材となる、L乳酸及びD乳酸からなるポリ乳酸を用い、上記D乳酸は、上記L乳酸に対して1〜5重量%混合された生分解性フィルム上に、剥離層となる100℃以上で硬化する熱硬化性のシリコーン樹脂液を塗布する第1の工程と、
上記シリコーン樹脂液を100℃以上で乾燥及び熱硬化させて剥離層を有する剥離フィルムを形成する第2の工程と、
上記剥離層上に、異方導電性接着材料を塗布する第3の工程と、
上記異方導電性接着材料を乾燥させて接着剤層を形成する第4の工程とを有する異方導電性接着剤フィルムの製造方法。 - 上記剥離フィルムは、非収縮性の生分解性フィルムを基材とする請求項7記載の異方導電性接着剤フィルムの製造方法。
- さらに、上記第1乃至第4の工程により得られた異方導電性接着剤フィルムを所定幅に切断してリールに巻回する工程を有する請求項7又は請求項8記載の異方導電性接着剤フィルムの製造方法。
- それぞれ第1及び第2の剥離フィルムの基材となる、L乳酸及びD乳酸からなるポリ乳酸を用い、上記D乳酸は、上記L乳酸に対して1〜5重量%混合された生分解性フィルム上に、第1及び第2の剥離層となる100℃以上で硬化する熱硬化性のシリコーン樹脂液を塗布する第1の工程と、
上記シリコーン樹脂液を100℃以上で乾燥及び熱硬化させて、それぞれ剥離力が異なる第1の剥離層、第2の剥離層を有する第1及び第2の剥離フィルムを形成する第2の工程と、
上記第1の剥離フィルムの第1の剥離層上に、異方導電性接着材料を塗布する第3の工程と、
上記異方導電性接着材料を乾燥させて接着剤層を形成する第4の工程と、
上記接着剤層の上記第1の剥離フィルム側の面と反対側の面に、上記第2の剥離層を介して上記第2の剥離フィルムを積層する第5の工程とを有する異方導電性接着剤フィルムの製造方法。 - 上記第1及び第2の剥離フィルムは、非収縮性の生分解性フィルムを基材とする請求項10記載の異方導電性接着剤フィルムの製造方法。
- さらに、上記第1乃至第5の工程により得られた異方導電性接着剤フィルムを所定幅に切断してリールに巻回する工程を有する請求項10又は請求項11記載の異方導電性接着剤フィルムの製造方法。
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JP2007122783A JP5154834B2 (ja) | 2007-05-07 | 2007-05-07 | 異方導電性接着剤フィルム及び異方導電性接着剤フィルムの製造方法 |
TW097112616A TW200904936A (en) | 2007-05-07 | 2008-04-08 | Anisotropic electroconductive adhesive film and method for manufacturing anisotropic electroconductive adhesive film |
US12/598,622 US20100129582A1 (en) | 2007-05-07 | 2008-04-22 | Anisotropic electrically conductive adhesive film and method for manufacturing same |
CN200880023611A CN101687388A (zh) | 2007-05-07 | 2008-04-22 | 各向异性导电性粘合剂薄膜和各向异性导电性粘合剂薄膜的制备方法 |
PCT/JP2008/057779 WO2008139857A1 (ja) | 2007-05-07 | 2008-04-22 | 異方導電性接着剤フィルム及び異方導電性接着剤フィルムの製造方法 |
US13/491,130 US20120305178A1 (en) | 2007-05-07 | 2012-06-07 | Anisotropic electrically conductive adhesive film and method for manufacturing same |
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KR20130117798A (ko) * | 2010-11-26 | 2013-10-28 | 닛토덴코 가부시키가이샤 | 폴리락트산계 필름 또는 시트 |
JP5777913B2 (ja) * | 2011-03-24 | 2015-09-09 | 日東電工株式会社 | 剥離ライナーの製造方法 |
CN104136507B (zh) * | 2012-02-10 | 2017-09-01 | 日东电工株式会社 | 保护薄膜 |
JP5864352B2 (ja) * | 2012-05-10 | 2016-02-17 | 帝人デュポンフィルム株式会社 | 異方導電性フィルム用離型フィルム |
JP5874561B2 (ja) * | 2012-07-25 | 2016-03-02 | デクセリアルズ株式会社 | 帯電防止性剥離フィルム |
CN104271693B (zh) * | 2012-12-17 | 2017-03-08 | 松下知识产权经营株式会社 | 导热片 |
JP6331776B2 (ja) * | 2014-06-30 | 2018-05-30 | デクセリアルズ株式会社 | 異方導電性フィルム及び接続構造体 |
CN105295760A (zh) * | 2015-10-23 | 2016-02-03 | 浙江欧仁新材料有限公司 | 一种各向异性导电双面胶 |
CN108340670B (zh) * | 2018-03-27 | 2023-09-12 | 深圳市三上高分子环保新材料股份有限公司 | 双拉伸聚乳酸薄膜即涂膜及其加工设备 |
CN110193982B (zh) * | 2019-05-29 | 2021-03-30 | 珠海市一心材料科技有限公司 | 高温阻胶膜及其制造方法 |
KR102675134B1 (ko) * | 2020-03-31 | 2024-06-12 | 동우 화인켐 주식회사 | 도전성 필름 적층체 및 이의 제조 방법 |
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