JP2019506483A - 有−無機接着組成物、これを含むガスバリア性フィルム及びその製造方法 - Google Patents
有−無機接着組成物、これを含むガスバリア性フィルム及びその製造方法 Download PDFInfo
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- C—CHEMISTRY; METALLURGY
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Abstract
【選択図】図1
Description
上記の目的は、シラン化合物及びイソシアネート系化合物を含むことを特徴とする、有−無機接着組成物により達成される。
[実施例1]
透明基材にポリエチレンテレフタレート(PET)フィルム(U48、厚さ:100μm)を使用し、前記フィルムの上面にスパッタ方式を利用して、50nm厚さの酸化ケイ素(SiOx)膜を積層させて、無機物ガスバリア層を形成させた。
前記実施例1にて無機物ガスバリア層として酸化ケイ素の代りに化学気相蒸着(CVD)を利用して酸化アルミニウム(Al2O3)膜を15nm積層させたことを除いて、同じ方法でガスバリア性フィルムを製造した。
前記実施例1にてシラン化合物としてアルコキシシランオリゴマー(信越社製、KR−513)の代りに3−メタアクリロキシプロピルトリメトキシシラン(信越社製、KBM−5103)を同じ量で使用したことを除いて、同じ方法でガスバリア性フィルムを製造した。
前記実施例1にて有−無機接着層を形成しないことを除いて、同じ方法でガスバリア性フィルムを製造した。
前記実施例3にてイソシアネート系化合物の希釈液を添加させないことを除いて、同じ方法でガスバリア性フィルムを製造した。
[実験例1]
実施例1、3及び比較例1のガスバリア性フィルムに対する有−無機接着層形成に応じる水蒸気透過率(WVTR:water vaportransmission rate)を測定した。水蒸気透過率は、MOCON社の装備を使用して38℃、100%相対湿度条件下でフィルムの厚さ方向に測定し、その結果は、表1に表した。
実施例1ないし3及び比較例2のガスバリア性フィルムに対する有−無機接着層と無機物ガスバリア層との付着性を測定した。付着性は、常温及び高温高湿(60℃、90%相対湿度、96時間)処理後に対してそれぞれ測定した。ASTMD3359−02に従ってコーティング表面をX−cutした後、テープを付着させた後、垂直に剥がすときに剥がされる程度に応じて相対的な値で付着性を評価し、その結果は、表2に表した(5B:0%、4B:5%未満、3B:15%未満、2B:35%未満、1B:65%未満、0B:65%以上)。
実施例1ないし3及び比較例2のガスバリア性フィルムに対する有−無機接着層または比較例1のガスバリア性フィルムに対する無機ガスバリア層と有機物との付着性を測定した。前記フィルムの有−無機接着層または無機物ガスバリア層(比較例1)の上面にUV硬化性アクリル溶液(JSR、OPSTAR Z7535)をバーコーティングした後、200mJ/cm2のエネルギーでUV硬化して、50μm厚の有機層を形成した後、実験例2のような方法で常温及び高温高湿処理後の付着性を評価し、その結果は表3に表した。
以下、本発明の実施例と図面を参照して、本発明を詳細に説明する。これらの実施例は、ただ本発明をさらに具体的に説明するために例示的に提示したものに過ぎず、本発明の範囲がこれらの実施例により制限されないことは、当業界における通常の知識を有したものにとって自明である。
Claims (12)
- シラン化合物及びイソシアネート系化合物を含むことを特徴とする、有−無機接着組成物。
- 前記シラン化合物は、ビニル基、エポキシ基、メタアクリロキシ基、アクリロキシ基、アミノ基及びイソシアネート基からなる群より選ばれた少なくとも一つ以上の官能基を含むシランであることを特徴とする、請求項1に記載の有−無機接着組成物。
- 前記イソシアネート系化合物は、イソシアネート基を有している単分子、オリゴマーまたは高分子化合物からなる群より選ばれた少なくとも一つ以上含むことを特徴とする、請求項1に記載の有−無機接着組成物。
- 透明基材と、
無機物ガスバリア層と、
請求項1ないし請求項3に記載の有−無機接着組成物を塗布して形成された透明有−無機接着層が順に積層されたことを特徴とする、ガスバリア性フィルム。 - 前記透明有−無機接着層は、前記無機物ガスバリア層とシロキサン結合を共有することを特徴とする、請求項4に記載のガスバリア性フィルム。
- 前記透明有−無機接着層は、有機物と反応できる官能基を含むことを特徴とする、請求項4に記載のガスバリア性フィルム。
- 前記官能基は、ヒドロキシ基、カルボキシル基、アクリル基、イソシアネート基、アミン基、アミド基、ウレア基、エポキシ基、チオール基からなる群より選ばれた少なくとも一つ以上を含むことを特徴とする、請求項6に記載のガスバリア性フィルム。
- 前記透明有−無機接着層は、0.05ないし10μmの厚さを有することを特徴とする、請求項4に記載のガスバリア性フィルム。
- 前記無機物ガスバリア層は、Si、Al、Ti、Zr及びTaからなる金属またはこれを含有する金属酸化物、金属窒化物または金属酸化窒化物からなる群より選ばれた少なくとも一つであることを特徴とする、請求項4に記載のガスバリア性フィルム。
- 前記無機物ガスバリア層の厚さは、5ないし200nmであることを特徴とする、請求項4に記載のガスバリア性フィルム。
- 前記透明基材は、ポリエチレンテレフタレート、ポリエチレンナフタレート、ポリアリレート、ポリカーボネート、ポリエーテルイミド、ポリアミドイミド、ポリイミド、ポリベンゾオキサゾールからなる群より選ばれた少なくとも一つ以上を含む断層または多層構造であることを特徴とする、請求項4に記載のガスバリア性フィルム。
- 透明基材を提供するステップと、
前記透明基材の一面に無機物ガスバリア層を形成するステップと、
請求項1ないし3のうちのいずれか1項に記載の有−無機接着組成物を製造するステップと、
前記無機物ガスバリア層上に前記有−無機接着組成物を印刷または塗布して有−無機接着層を形成するステップとを含むことを特徴とする、ガスバリア性フィルムの製造方法。
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