JPWO2012133370A1 - 熱線遮蔽性積層体及びそのフィルムロール - Google Patents
熱線遮蔽性積層体及びそのフィルムロール Download PDFInfo
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- JPWO2012133370A1 JPWO2012133370A1 JP2013507586A JP2013507586A JPWO2012133370A1 JP WO2012133370 A1 JPWO2012133370 A1 JP WO2012133370A1 JP 2013507586 A JP2013507586 A JP 2013507586A JP 2013507586 A JP2013507586 A JP 2013507586A JP WO2012133370 A1 JPWO2012133370 A1 JP WO2012133370A1
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- heat ray
- ray shielding
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- glass
- ethylene
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Abstract
Description
前記エチレン−酢酸ビニル共重合体層とフッ素樹脂層とが、隣接するか、又は互いに対向する最外層にあり、
前記シランカップリング剤が、下記式(I)
R2−Si(OR1)3 (I)
(但し、R1が炭素数2〜5のアルキル基であり、R2がエチレン性不飽和基又はエチレン性不飽和基を有する基である。)
で表わされるシランカップリング剤であり、
該シランカップリング剤の含有量が、前記エチレン−酢酸ビニル共重合体100質量部に対して0.1〜2.5質量部であることを特徴とする熱線遮蔽性積層体により達成される。
(1)R1がエチル基である。
(2)当該積層体を、前記エチレン−酢酸ビニル共重合体層と前記フッ素樹脂層とが隣接した状態で、温度30℃、湿度80%RHの環境下で6カ月放置した後、前記エチレン−酢酸ビニル共重合体層上にガラスを積層させた状態で架橋硬化させ、その架橋硬化後のエチレン−酢酸ビニル共重合体層のガラスとの接着力が、JIS K 6854−2に準拠して測定して、3N/cm以上である。
(3)更に、透明プラスチックフィルムを含む。
本発明においてエチレン−酢酸ビニル共重合体層に含まれるシランカップリング剤は、下記式(I)
R2−Si(OR1)3 (I)
(但し、R1が炭素数2〜5のアルキル基であり、R2がエチレン性不飽和基又はエチレン性不飽和基を有する基である。)
で表わされるシランカップリング剤である。
本発明において、エチレン−酢酸ビニル共重合体における酢酸ビニルの含有量は、前記エチレン−酢酸ビニル共重合体に対して20〜35質量%、さらに22〜30質量%、特に24〜28質量%とするのが好ましい。酢酸ビニルの含有量が、20質量%未満であると、高温で架橋硬化させる場合に得られるフィルムの透明性が充分でない恐れがあり、35質量%を超えると、カルボン酸、アルコール、アミン等が発生し隣接層との界面で発泡が生じ易くなる恐れがある。
本発明において、フッ素樹脂層は、適当な基板(例えば、プラスチックフィルム)上に形成したフッ素樹脂層でもよく、フッ素樹脂シートそれ自体でもよい。
を有する重合体Aを挙げることができる。これらの中で、上記重合体A、フルオロエチレンビニルエーテル(FEVE)が好ましい。これらの(共)重合体は、さらに官能基(例、アルコキシシリル基、ヒドロキシル基、アミノ基、イミノ基、(メタ)アクリロイロキシ基、エポキシ基、カルボキシル基、スルホニル基、アクリレート型イソシアヌレート基、硫酸塩基)を有していても良い。市販されているフッ素樹脂の好ましい例としては、サイトップ(旭硝子(株)製)、ゼッフル(ダイキン化学(株)製)、オプツール(ダイキン化学(株)製)を挙げることができる。これらは、熱可塑性、熱硬化型、又は光(一般に紫外線)硬化型の樹脂である。硬化させる際は、適宜硬化剤、架橋剤を使用することが好ましい。
フッ素樹脂層はタングステン酸化物及び/又は複合タングステン酸化物を含んでいる。
上述したように、本発明の熱線遮蔽性積層体は、シランカップリング剤を含むEVA層と、タングステン酸化物及び/又は複合タングステン酸化物を含むフッ素樹脂層とが隣接しているか、又は互いに対向する最外層にある積層体である。
本発明の熱線遮蔽ガラスは、上述した熱線遮蔽性積層体を有していればよい。図5は、図1に示す積層体10を用いた熱線遮蔽ガラス50の一例を示す概略断面図である。熱線遮蔽性積層体10のEVA層12の他方の面にガラス板16を積層して接着一体化することにより製造することができる。
1.シランカップリング剤を含むEVAシート(EVA層)の作製
表1及び2に示す配合で各材料をロールミルに供給し、70℃において混練してEVAシート用組成物を調製した。前記EVAシート用組成物を、70℃においてカレンダ成形し、放冷後、EVAシート(厚さ0.4mm)を作製した。
PETフィルム(200μm)上に、下記のフッ素樹脂層形成用塗布液をバーコータにより塗布し、80℃で30秒間乾燥し、厚さ1μmのフッ素樹脂層を形成した。
(配合)
・官能基含有フッ素樹脂(固形分15質量%、MIBK85質量%、オプツールAR−110(前記重合体A)、ダイキン工業(株)製)100質量部
・セシウムタングステン酸化物(Cs0.33WO3、固形分20質量%、MIBK80質量%)100質量部
上記EVAシートを、上記PETフィルム上に形成されたフッ素樹脂層上に積層し、真空ラミネーターにて100℃の温度で3分間圧着して、熱線遮蔽性積層体を得た。
(1)積層後6カ月後の貯蔵安定性
(i)初期のガラス接着力
上記積層体のEVA層上にガラス(3mm)を積層した後、真空ラミネーターにて100℃の温度で100分間仮圧着した後、オーブンに入れ、温度120℃の条件で90分架橋させて、接着一体化されたサンプルを得た。
上記積層体を6カ月間、温度30℃、湿度80%RHで放置した後、積層体のEVA層上にガラスを積層した後、真空ラミネーターにて100℃の温度で10分間仮圧着した後、オーブンに入れ、温度120℃の条件で90分架橋させた。このサンプルについて、上記と同様にガラス接着力を測定した。
添加したシランカップリング剤の加水分解性基が炭素数2〜5のアルコキシ基である実施例1〜7(上記式(I)のR1が炭素数2〜5のアルキル基の場合)は、初期接着力が高く、また6カ月後の接着力の低下が小さいことが認められた。
12、22、42 EVA層
13、23、43 透明プラスチックフィルム
14、24、44 フッ素樹脂層
45 接着樹脂層
16、26、46A、46B ガラス板
40 熱線遮蔽性合わせガラス用中間膜
50、60 熱線遮蔽ガラス
70 熱線遮蔽合わせガラス
Claims (8)
- シランカップリング剤を含むエチレン−酢酸ビニル共重合体層と、タングステン酸化物及び/又は複合タングステン酸化物を含むフッ素樹脂層とを含む熱線遮蔽性積層体であって、
前記エチレン−酢酸ビニル共重合体層とフッ素樹脂層とが、隣接するか、又は互いに対向する最外層にあり、
前記シランカップリング剤が、下記式(I)
R2−Si(OR1)3 (I)
(但し、R1が炭素数2〜5のアルキル基であり、R2がエチレン性不飽和基又はエチレン性不飽和基を有する基である。)
で表わされるシランカップリング剤であり、
該シランカップリング剤の含有量が、前記エチレン−酢酸ビニル共重合体100質量部に対して0.1〜2.5質量部であることを特徴とする熱線遮蔽性積層体。 - R1がエチル基であることを特徴とする請求項1に記載の熱線遮蔽性積層体。
- 当該積層体を、前記エチレン−酢酸ビニル共重合体層と前記フッ素樹脂層とが隣接した状態で、温度30℃、湿度80%RHの環境下で6カ月放置した後、前記エチレン−酢酸ビニル共重合体層上にガラスを積層させた状態で架橋硬化させ、その架橋硬化後のエチレン−酢酸ビニル共重合体層のガラスとの接着力が、JIS K 6854−2に準拠して測定して、3N/cm以上であることを特徴とする請求項1又は2に記載の熱線遮蔽性積層体。
- 更に、透明プラスチックフィルムを含むことを特徴とする請求項1〜3の何れか1項に記載の熱線遮蔽性積層体。
- 請求項1〜4の何れか1項に記載の熱線遮蔽性積層体を含むことを特徴とする熱線遮蔽合わせガラス用中間膜。
- 請求項1〜4の何れか1項に記載の熱線遮蔽性積層体又は請求項5に記載の熱線遮蔽合わせガラス用中間膜をロール状に巻回させてなるフィルムロール。
- 請求項1〜4の何れか1項に記載の熱線遮蔽性積層体を用いたことを特徴とする熱線遮蔽ガラス。
- 請求項5に記載の熱線遮蔽合わせガラス用中間膜を用いたことを特徴とする合わせガラス。
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EP3202731B1 (en) * | 2014-09-30 | 2023-12-27 | Sekisui Chemical Co., Ltd. | Interlayer film for laminated glass, and laminated glass |
KR102344135B1 (ko) * | 2015-06-30 | 2021-12-29 | 스미토모 긴조쿠 고잔 가부시키가이샤 | 열선 차폐막, 열선 차폐를 구비한 투명 기재, 자동차, 건조물, 분산체, 혼합 조성물, 분산체 제조방법, 분산액, 분산액 제조방법 |
US11145851B2 (en) * | 2015-11-11 | 2021-10-12 | The Board Of Trustees Of The Leland Stanford Junior University | Composite lithium metal anodes for lithium batteries with reduced volumetric fluctuation during cycling and dendrite suppression |
US10531555B1 (en) * | 2016-03-22 | 2020-01-07 | The United States Of America As Represented By The Secretary Of The Army | Tungsten oxide thermal shield |
CN106353960A (zh) * | 2016-10-18 | 2017-01-25 | 孙绪刚 | 一种基于eva胶膜的透明防紫外投影屏及制备方法 |
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JP2009084127A (ja) * | 2007-10-02 | 2009-04-23 | Bridgestone Corp | 合わせガラス中間膜用エチレン−酢酸ビニル共重合体樹脂フィルムロールの製造方法、及びこれにより得られる合わせガラス中間膜用エチレン−酢酸ビニル共重合体樹脂フィルムロール |
JP2010089452A (ja) * | 2008-10-10 | 2010-04-22 | Bridgestone Corp | 積層体、及びこれを用いた熱線遮蔽合わせガラス |
JP2010275160A (ja) * | 2009-05-29 | 2010-12-09 | Bridgestone Corp | 熱線遮蔽合わせガラス用中間膜、及び熱線遮蔽合わせガラス |
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US20100220388A1 (en) * | 2007-06-08 | 2010-09-02 | Bridgestone Corporation | Near-infrared shielding material, laminate including the same, and optical filter for display including the same |
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JP2009084127A (ja) * | 2007-10-02 | 2009-04-23 | Bridgestone Corp | 合わせガラス中間膜用エチレン−酢酸ビニル共重合体樹脂フィルムロールの製造方法、及びこれにより得られる合わせガラス中間膜用エチレン−酢酸ビニル共重合体樹脂フィルムロール |
JP2010089452A (ja) * | 2008-10-10 | 2010-04-22 | Bridgestone Corp | 積層体、及びこれを用いた熱線遮蔽合わせガラス |
JP2010275160A (ja) * | 2009-05-29 | 2010-12-09 | Bridgestone Corp | 熱線遮蔽合わせガラス用中間膜、及び熱線遮蔽合わせガラス |
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JP5745034B2 (ja) | 2015-07-08 |
CN103492178B (zh) | 2015-09-23 |
WO2012133370A1 (ja) | 2012-10-04 |
CN103492178A (zh) | 2014-01-01 |
US20140017503A1 (en) | 2014-01-16 |
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