JP5499031B2 - 腐食感受性層に適合する接着剤 - Google Patents
腐食感受性層に適合する接着剤 Download PDFInfo
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- JP5499031B2 JP5499031B2 JP2011523075A JP2011523075A JP5499031B2 JP 5499031 B2 JP5499031 B2 JP 5499031B2 JP 2011523075 A JP2011523075 A JP 2011523075A JP 2011523075 A JP2011523075 A JP 2011523075A JP 5499031 B2 JP5499031 B2 JP 5499031B2
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Description
腐食感受性層が有する電気抵抗を記載する際に使用される「変化」は一般に、コンディショニング前後における層の電気抵抗の絶対値の差異を意味する。
「酸価」は一般に、ポリマーの酸含有率を示し、一般にASTM D974に従った1グラムのポリマー中の酸を中和するのに必要な水酸化カリウムの量(一般に、ミリグラムで)と定義される。
「付加硬化型シリコーン」は一般に、ビニル末端ポリジメチルシロキサン(PDMS)等のビニル末端オリゴマー/ポリマーと、水素化ケイ素を含有するPDMS等の水素化物含有オリゴマー/ポリマーとの、典型的には白金触媒の存在下での反応物を含む。
「接着剤」は一般に、粘性かつ弾性の成分を有する粘弾性材料を意味し、したがって、接着剤は、圧縮応力下で、あるレベルの弾力性を示すが、一般にばね様の材料ではなく、即ち、弾性固体ではない。
「腐食感受性層」は一般に、空気及び水分に対する暴露により酸化され易い層を意味し、電圧が印加されると電流を伝えることができる。
「キュア・イン・プレース接着剤」は一般に、所望の位置に供給され得る液体系を意味し、その位置で接着剤成分がほぼ自発的に互いに反応するか又はエネルギー源(熱又は放射線等)に暴露された際に反応する。
「熱活性化接着剤」は一般に、乾燥形態で室温において指圧により粘着性を実質的に全く有さないが、高温に対する暴露により粘着性を有し、基材表面全体を良くぬらし、室温に冷却後、様々な異なる表面に接着する接着剤を意味する。
任意の一般的な層又は基材を説明するのに使用される「微細構造」は一般に、層の主表面から突出する反復構造を含む構造を意味し、この構造は、尖端及び角錐を含むが、これらに限定されない様々な形態を有することができる。
「光学的に透明な」は一般に、下記の実施例部分に記載された方法で、25マイクロメートル厚の試料上で測定された際に約5%以下のヘイズを有する材料を意味し、
「感圧接着剤」は一般に、乾燥状態で室温において強力かつ永久的な粘着性を有し、様々な異なる表面に固く接着する接着剤を意味する。
本開示での使用に適した接着剤は、中性又は塩基性の性質を有するものを含む。換言すれば、接着剤は、酸官能基を含まず、又は少量のみ含むことが好ましく、したがって接着剤は、約5未満の酸価を有する。接着剤中の酸含有率は、物品の寿命にわたって腐食感受性層の電気性能を感知できるほど妨げない。本開示での使用に適した接着剤は、感圧接着剤(PSA)、熱活性化接着剤(HAA)、又はキュア・イン・プレース接着剤(CIPA)であり得る。一実施形態において、接着剤は、任意に透明である。したがって、接着剤は、以下のうちの1つであってよい。光学的に透明なPSA若しくは光学的に不透明なPSA、光学的に透明なHAA若しくは光学的に不透明なHAA、又は光学的に透明なCIPA若しくは光学的に不透明なCIPA。
接着剤の25マイクロメートル厚試料を、25マイクロメートル厚のMelinex(登録商標)ポリエステルフィルム454(DuPont Company、Wilmington,DEから)へと、気泡がフィルムと接着剤層との間に捕捉されないような方法で積層させた。イソプロパノールで3回拭いた75mm×50mmの平らなマイクロスライド(Dow Corning、Midland,MIからのスライドガラス)は、ハンドローラーを使用して接着剤試料へと積層させ、接着剤とスライドガラスとの間に気泡が捕捉されないようにした。パーセント(%)透過率及びヘイズは、Model 9970 BYK Gardner TCS Plus分光光度計(BYK Gardner、Columbia,MDから)を使用して測定した。Melinex(登録商標)ポリエステルフィルム454及びスライドガラスを重ね合わせることで、バックグラウンド測定を行なった。次に分光光度計内にて、フィルム/接着剤/ガラス積層体上にて接着剤試料の%透過率及びヘイズを直接得た。
接着剤の酸化インジウムスズ(ITO)層である腐食感受性層との適合性試験を、以下のように行った。接着剤の試料は、0.0381ミリメートル(0.0015インチ)厚の下塗りしたポリエステル(PET)裏材へと移し、テープを形成した。次に、ITO層で被覆した主表面を有するPETフィルムへとテープを積層させて、接着剤が配線と直接接触して積層体を形成するようにした。コネクタパッドを横切ってメーターの導線を配置させたオーム計を使用し、ITO配線上にて、初期の表面抵抗を測定した。得られた積層体は、60℃に設定した相対湿度90%のオーブン内にてコンディショニングした。それぞれの試料の表面抵抗は、28日間にわたって定期的に、オーム計を使用して測定した。5個の表面抵抗測定値の平均を記録した。
接着剤のニッケル又はアルミニウム蒸気金属化PETである腐食感受性材料との適合性試験を、以下のように行った。接着剤の試料は、0.0381ミリメートル(0.0015インチ)厚の下塗りしたポリエステル(PET)裏材へと移し、テープを形成した。次に、接着剤がニッケル又はアルミニウムと直接接触するように、テープを金属化PETフィルムに積層した。積層体の初期光透過率及びδ(E)を、Model 9970 BYK Gardner TCS Plus分光光度計(BYK Gardner、Columbia,MD)を使用して測定した。得られた積層体を、60℃に設定した相対湿度90%のオーブン内にてコンディショニングし、それぞれの試料に関する光透過率及びδ(E)を25日間にわたり定期的に測定した。δ(E)は、2色の間の距離を(数学的に)記載するのに使用される。これは(L1〜L2)2、(a1〜a2)2、及び(b1〜b2)2(式中、L、a、及びbは、色指数である)の合計の平方根として定義される。
反応器内に、600グラムのイソプロパノールに溶解した800グラムのJeffamine(登録商標)D−2000ポリエーテルアミン(Huntsman Corp.、Woodlands,Texasから)、800グラムのイソプロパノール、22.35グラムのDytek(登録商標)Aジアミン(DuPont、Wilmington,Delawareから)、及び151.36グラムのDesmodur(登録商標)Wモノマー脂環式ジイソシアネート(Bayer Material Science AG、Leverkusen,Germanyから)を入れた。得られた混合物を、メカニカルローラー上に室温で48時間、置いた。次いで、シリコーン処理したポリエステル剥離ライナー上に溶液を被覆し、70℃で10分間乾燥して、25マイクロメートル(0.001インチ)厚の最終的なポリアミド系感圧接着剤とした。
反応器内に、数平均分子量2,800を有する86グラムのヒドロキシル官能基含有ポリブタジエン(CAS番号69102−90−5、Aldrich、Milwaukee,Wisconsinから入手可能)を9.15グラムのイソホロンジイソシアネート(0.08等量)とともに入れた。得られた混合物を、乾燥窒素雰囲気下にて80℃で2時間反応させた。その後、5.3グラムのアミノプロピルトリメトキシシラン(0.21等量)を添加した。混合物を10分間攪拌した後、66.7グラムのトルエンを添加して、シラン末端ウレタンの60%固形分溶液を生成した。溶液をライナー上に被覆し、70℃で15分間乾燥して、48マイクロメートル(0.0019インチ)厚の最終的な感圧接着剤とした。末端トリメトキシシランの存在により、この乾燥ポリマーコーティングは、水分の存在下で硬化を継続して架橋ポリマーコーティングを得ることができる。水分硬化性は、ジラウリン酸ジブチルスズ等の触媒の存在下で加速され得る。
反応器内に、150グラムのPriplast(登録商標)3192、半結晶性ポリエステルポリオール(1020ヒドロキシル当量、0.147等量、Uniqema、New Castle,Delawareから)及び27.7グラムのイソホロンジイソシアネート(0.25等量)を入れた。得られた混合物を、乾燥窒素雰囲気下にて80℃で2時間反応させた。その後、22.3グラムのアミノプロピルトリメトキシシラン(0.10等量)を添加した。混合物を10分間攪拌した後、66.7グラムのトルエンを添加して、シラン末端ウレタンの75%固形分溶液を生成した。溶液をライナー上に被覆し、70℃で15分間乾燥して、38マイクロメートル(0.0015インチ)厚の最終的な感圧接着剤とした。実施例2の材料と同様、このポリマーも水分の存在下で架橋することができる。
反応槽内に、十分な量の2−プロパノール中のモル比1:1:2のPDMSジアミン33,000、DYTEK A、及びH12MDIを入れて、試薬の20%固形分溶液を与えた。混合物を2時間撹拌して、シリコーンポリ尿素エラストマーを20%固形分にて与えた。
14K PDMSジアミンの試料(830.00グラム)を、機械的撹拌機、加熱マントル、窒素導入用チューブ(ストップコック付き)、及び排出管を装備した2リットルの3つ口樹脂フラスコ内に入れた。フラスコを窒素で15分間パージし、次に、激しく撹拌し、シュウ酸ジエチル(33.56グラム)を滴加した。この反応混合物をおよそ1時間、室温で攪拌し、次に、80℃にて75分間撹拌した。反応フラスコには、蒸留アダプタ及び蒸留レシーバを装着した。反応混合物を真空下(133パスカル、1トール)、120℃にて2時間加熱し、次に、130℃にて30分間、更なる留出物を集めることができなくなるまで加熱した。反応混合物を室温に冷却して、オキサミドエステル末端シリコーン生成物(即ち、シリコーンジアミンの両端がモノエチルオキサミドエステル基で終結している)を提供した。透明な流動性の液体ガスクロマトグラフィー分析は、検出可能量のシュウ酸ジエチルが残存していないことを示した。調製例Cのための、この前駆体のエステル当量を滴定により測定した(当量=8,272グラム/等量)。
調製例Bのおよそ10グラムの前駆体化合物を瓶に添加した。およそ50グラムのTHF溶媒を添加した。混合物が均質になるまで、磁気攪拌棒を使用して内容物を混合した。前駆体の理論当量を計算し、次に本当量数の3〜4倍の範囲の量のN−ヘキシルアミンを添加した。反応混合物を最低4時間撹拌した。ブロモフェノールブルー(10〜20滴)を添加し、内容物が均質になるまで混合した。混合物を黄色の終点まで1.0N(又は0.1N)塩酸にて滴定した。前駆体の当量数は、試料に加えたN−ヘキシルアミンの当量数から、滴定中に加えた塩酸の当量数を差し引いたものに等しかった。当量(グラム/等量)は、前駆体の試料重量を前駆体の当量数で割ったものに等しかった。
調製例Bの前駆体(98.13グラム)及びエチレンジアミン(0.36グラム)を瓶内に量り取った。瓶を密閉し、内容物が粘稠過ぎて流れなくなるまで混合物を素早く撹拌した。ローラーミル上に瓶を周囲温度にて一晩置いた。固体生成物を収集した。
実施例4では、調製例Aからのシリコーンポリ尿素エラストマー(80部)と添加油(20部)とを、従来の溶媒手段を用いて、30重量%のIPA(120.00部)及び70重量%のトルエン(280.00部)からなる溶液ブレンド中の20%固形分にてブレンドすることによりシリコーンポリ尿素エラストマー接着剤を調製した。これらの試料を、溶媒混合物から下塗りしたPET上に溶媒混合物から被覆し、乾燥して25マイクロメートルの最終厚さとした。
調製例Cのコポリマー(18.50グラム)をTHF(45.60グラム)に溶解した。MQ樹脂(30.83グラム、60.0%固形分)をポリマー溶液に添加した。結果として得られた混合物を一晩周囲条件にて混合し、次に、PET上にナイフコーティングした。被覆されたフィルムを周囲温度で約15分間乾燥した後、130℃のオーブン内で10分間乾燥して25マイクロメートルの乾燥厚のコーティングを得た。
実施例5の接着剤(25マイクロメートル)を、ポリオレフィン(ExxonMobil EXACT 8210)担体フィルム(3.18mm(125mil))の両面に積層して、ポリオレフィンコア及びシリコーン接着剤表面を有する接着剤転写テープを得た。
2つのシリコーン接着剤、Dow Corning 7657及びDow Corning 7658(70/30乾燥重量比)を、Dow Corning Syl−Off 7678架橋剤(0.16部)及びDow Corning Syl−Off 4000触媒と混合した。混合溶液を130℃のオーブン内にてフルオロシリコーンライナー上で約15分間乾燥して、36マイクロメートルの乾燥厚のコーティングを得た。次に、乾燥した接着剤をポリオレフィン(ExxonMobil EXACT 8210)担体フィルム(2.54mm(100mil))の両面に積層して、接着剤転写テープを得た。
Claims (6)
- 金属及び金属合金からなる群から選択される腐食感受性層と接触した、5未満の酸価を有し、かつポリ尿素、ポリアミド、ポリウレタン、ポリエステル、付加硬化型シリコーン及びそれらの組み合わせからなる群から選択される接着剤を含み、60℃及び相対湿度90%で21日間コンディショニングされた際に、腐食感受性層がその20%以下の初期電気抵抗値からの変化を示す物品。
- 前記腐食感受性層が、基材の第1の主表面上に配置されており、任意に、前記基材が、ガラス及びポリマーフィルムからなる群から選択される、請求項1に記載の物品。
- 前記接着剤及び基材の少なくとも一方が、光学的に透明である、請求項2に記載の物品。
- 前記腐食感受性層が、銅、銅合金、銀、銀合金、酸化インジウムスズ、ニッケル、アルミニウム及び酸化アンチモンスズからなる群から選択される、請求項1に記載の物品。
- 物品の製造方法であって、
その少なくとも一部上に配置された腐食感受性層を有する基材を提供する工程と、
(i)第1の主表面及び第2の主表面を有する裏材と、(ii)5未満の酸価を有し、かつポリ尿素、ポリアミド、ポリウレタン、ポリエステル、付加硬化型シリコーン及びそれらの組み合わせからなる群から選択される接着剤と、を含むテープを提供する工程と、
前記テープを前記接着剤が前記腐食感受性層と接触するように前記基材に積層する工程と、を含む、方法。 - 前記接着剤及び前記基材の少なくとも一方が、光学的に透明であり、任意に、前記基材が、ガラス及びポリマーフィルムからなる群から選択される、請求項5に記載の方法。
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US8820108P | 2008-08-12 | 2008-08-12 | |
US61/088,201 | 2008-08-12 | ||
PCT/US2009/053337 WO2010019528A2 (en) | 2008-08-12 | 2009-08-11 | Adhesives compatible with corrosion sensitive layers |
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JP2011530438A JP2011530438A (ja) | 2011-12-22 |
JP2011530438A5 JP2011530438A5 (ja) | 2012-09-06 |
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EP (1) | EP2315663B1 (ja) |
JP (1) | JP5499031B2 (ja) |
KR (1) | KR101701522B1 (ja) |
CN (1) | CN102123859B (ja) |
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WO (1) | WO2010019528A2 (ja) |
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2009
- 2009-08-11 US US12/538,948 patent/US20100040842A1/en not_active Abandoned
- 2009-08-11 WO PCT/US2009/053337 patent/WO2010019528A2/en active Application Filing
- 2009-08-11 EP EP09807143.4A patent/EP2315663B1/en active Active
- 2009-08-11 CN CN200980131507.8A patent/CN102123859B/zh not_active Expired - Fee Related
- 2009-08-11 JP JP2011523075A patent/JP5499031B2/ja not_active Expired - Fee Related
- 2009-08-11 KR KR1020117005412A patent/KR101701522B1/ko active IP Right Grant
- 2009-08-11 TW TW98126970A patent/TWI468296B/zh not_active IP Right Cessation
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EP2315663B1 (en) | 2020-09-23 |
TWI468296B (zh) | 2015-01-11 |
US20100040842A1 (en) | 2010-02-18 |
EP2315663A4 (en) | 2015-06-24 |
TW201012655A (en) | 2010-04-01 |
WO2010019528A3 (en) | 2010-05-14 |
WO2010019528A2 (en) | 2010-02-18 |
KR20110041565A (ko) | 2011-04-21 |
JP2011530438A (ja) | 2011-12-22 |
KR101701522B1 (ko) | 2017-02-01 |
CN102123859A (zh) | 2011-07-13 |
CN102123859B (zh) | 2016-09-14 |
EP2315663A2 (en) | 2011-05-04 |
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