JP2009074027A - 接着剤、及び回路部材の接続構造体 - Google Patents
接着剤、及び回路部材の接続構造体 Download PDFInfo
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- JP2009074027A JP2009074027A JP2008026867A JP2008026867A JP2009074027A JP 2009074027 A JP2009074027 A JP 2009074027A JP 2008026867 A JP2008026867 A JP 2008026867A JP 2008026867 A JP2008026867 A JP 2008026867A JP 2009074027 A JP2009074027 A JP 2009074027A
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Abstract
【解決手段】(a)熱可塑性樹脂、(b)ラジカル重合性化合物、及び(c)ラジカル重合開始剤を含有してなる接着剤であって、(b)ラジカル重合性化合物が分子内に1つ以上のイソシアヌル酸構造を有する接着剤。
【選択図】なし
Description
(a)熱可塑性樹脂として、フェノキシ樹脂(PKHM−30:InChem社製商品名)、ブチラール樹脂(デンカブチラール3000−1:電気化学工業社製商品名)、ポリエステルウレタン樹脂(UR−5537:東洋紡社製商品名)、及び下記の方法により調製したウレタン樹脂を準備した。
(1)ラジカル重合性化合物A:
イソシアヌル酸EO変性ジアクリレート(M−325:東亜合成株式会社製商品名、上記一般式(1)においてR1及びR2が一般式(A)で表される基、R3が一般式(B)で表される基、aが2、bが5、cが1である化合物)
(2)ラジカル重合性化合物B:
イソシアヌル酸変性ウレタントリアクリレート(UA−21:新中村化学工業株式会社製商品名、上記一般式(2)においてR7、R8及びR9が一般式(D)で表される基、R10がメチル基、Xがエチレンオキシド基(−CH2−CH2−O−)、fが6、gが4である化合物)
(3)ラジカル重合性化合物C:
イソシアヌル酸トリス(2−ヒドロキシエチル)100g(0.38モル)と、2−メタクリロイルオキシエチルイソシアネート178g(1.14モル)と、触媒量のp−ジメチルアミノピリジンとを、トルエン278g中で均一に混合しながら、100℃にて6時間反応させて得られたイソシアヌル酸変性ウレタントリアクリレート(上記一般式(1)においてR1、R2及びR3が一般式(C)で表される基、aが2、dが2、eが1である化合物)
(4)ラジカル重合性化合物D:
2−ヒドロキシエチルアクリレート238g(2.05モル)と、数平均分子量860のポリ(ヘキサメチレンカーボネート)ジオール(アルドリッチ社製)860g(1モル)と、1,4−シクロヘキサンジメタノール144gと、イソフォロンジイソシアネート666gとを、3時間かけて均一に滴下し、触媒量のジブチルスズジラウレート1.91gの存在下、70〜75℃で加熱して反応させた数平均分子量3,700のウレタンアクリレート
(5)ラジカル重合性化合物E:
EO変性ビスフェノールAジアクリレート(FA−324A;日立化成工業株式会社製商品名)
実施例1〜6及び比較例1〜3で得られたフィルム状接着剤について下記の方法により、接着強度及び接続抵抗の測定を行った。
まず、ライン幅25μm、ピッチ50μm、厚み12μmの銅回路を500本有するフレキシブル回路板(FPC)と、0.2μmの酸化インジウム(ITO)の薄層を形成したガラス(厚み1.1mm、表面抵抗20Ω/□)とを用意した。これらのフレキシブル回路板とガラスとの間に上述のフィルム状接着剤を介在させ、熱圧着装置(加熱方式:コンスタントヒート型、東レエンジニアリング株式会社製)を用いて、160℃の温度で3MPaで10秒間の加熱加圧を行って幅2mmにわたり接続し、回路部材の接続構造体を作製した。
また、この接続構造体の接着強度をJIS−Z0237に準じて90度剥離法で測定し、評価した。ここで、接着強度の測定装置としては、東洋ボールドウィン株式会社製テンシロンUTM−4(剥離速度50mm/min、25℃)を使用した。以上のようにして行った接続構造体の接着強度、接続抵抗の測定の結果を下記表2に示した。
Claims (6)
- (a)熱可塑性樹脂、(b)ラジカル重合性化合物、及び(c)ラジカル重合開始剤を含有してなる接着剤であって、
(b)ラジカル重合性化合物が分子内に1つ以上のイソシアヌル酸構造を有する接着剤。 - (b)ラジカル重合性化合物が、下記一般式(1)で表される化合物及び/又は下記一般式(2)で表される化合物を含む、請求項1記載の接着剤。
- (d)分子内に少なくとも一つ以上のリン酸基を有するビニル化合物をさらに含有してなる、請求項1又は2に記載の接着剤。
- (a)熱可塑性樹脂が、フェノキシ樹脂、ポリエステル樹脂、ポリウレタン樹脂、ポリエステルウレタン樹脂、ブチラール樹脂、アクリル樹脂、及びポリイミド樹脂からなる群より選ばれる少なくとも1種を含む、請求項1〜3のいずれか一項に記載の接着剤。
- (e)導電性粒子をさらに含有する、請求項1〜4のいずれか一項に記載の接着剤。
- 第1の接続端子を有する第1の回路部材と、
第2の接続端子を有する第2の回路部材とを、
前記第1の接続端子と前記第2の接続端子とを対向して配置し、
対向配置した前記第1の接続端子と前記第2の接続端子との間に、請求項1〜5のいずれか一項に記載の接着フィルムを介在させ、加熱加圧して、前記第1の接続端子と前記第2の接続端子とを電気的に接続させてなる、回路部材の接続構造体。
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Cited By (8)
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JP2011038075A (ja) * | 2009-07-17 | 2011-02-24 | Hitachi Chem Co Ltd | 接着剤組成物及び該接着剤組成物を用いた回路部材の接続構造体 |
JP2011038080A (ja) * | 2009-07-17 | 2011-02-24 | Hitachi Chem Co Ltd | 接着剤組成物及び接続構造体 |
WO2011118719A1 (ja) * | 2010-03-25 | 2011-09-29 | 日立化成工業株式会社 | 接着剤組成物及びその使用、並びに、回路部材の接続構造体及びその製造方法 |
US9012531B2 (en) | 2011-02-15 | 2015-04-21 | 3M Innovative Properties Company | Dental compositions comprising mixture of isocyanurate monomer and tricyclodecane monomer |
JP2015195200A (ja) * | 2014-03-26 | 2015-11-05 | 積水化学工業株式会社 | 光硬化性導電材料、接続構造体及び接続構造体の製造方法 |
JP2015195199A (ja) * | 2014-03-26 | 2015-11-05 | 積水化学工業株式会社 | 光硬化性導電材料、接続構造体及び接続構造体の製造方法 |
US9237990B2 (en) | 2010-03-31 | 2016-01-19 | 3M Innovative Properties Company | Polymerizable isocyanurate monomers and dental compositions |
WO2016199252A1 (ja) * | 2015-06-10 | 2016-12-15 | 日立化成株式会社 | 接着剤組成物及び接続体 |
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