JP7569151B2 - 合わせガラス及び合わせガラスの取り付け方法 - Google Patents
合わせガラス及び合わせガラスの取り付け方法 Download PDFInfo
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- JP7569151B2 JP7569151B2 JP2019518007A JP2019518007A JP7569151B2 JP 7569151 B2 JP7569151 B2 JP 7569151B2 JP 2019518007 A JP2019518007 A JP 2019518007A JP 2019518007 A JP2019518007 A JP 2019518007A JP 7569151 B2 JP7569151 B2 JP 7569151B2
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- Prior art keywords
- laminated glass
- resin layer
- glass member
- infrared reflective
- reflective layer
- Prior art date
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Landscapes
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- Physics & Mathematics (AREA)
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- Optics & Photonics (AREA)
- Joining Of Glass To Other Materials (AREA)
- Instrument Panels (AREA)
- Laminated Bodies (AREA)
Description
上記赤外線反射層は赤外線を反射する。上記赤外線反射層は、赤外線を反射する性能を有していれば特に限定されない。
上記第1,第2の合わせガラス部材としては、ガラス板及びPET(ポリエチレンテレフタレート)フィルム等が挙げられる。上記合わせガラスには、2枚のガラス板の間に中間膜が挟み込まれている合わせガラスだけでなく、ガラス板とPETフィルム等との間に中間膜が挟み込まれている合わせガラスも含まれる。合わせガラスは、ガラス板を備えた積層体であり、少なくとも1枚のガラス板が用いられていることが好ましい。上記第1,第2の合わせガラス部材がそれぞれガラス板又はPET(ポリエチレンテレフタレート)フィルムであり、かつ上記合わせガラスが、上記第1,第2の合わせガラス部材として、少なくとも1枚のガラス板を含むことが好ましい。上記第1,第2の合わせガラス部材の双方がガラス板であることが特に好ましい。
本明細書において、「第1の樹脂層」とは、上記第1の合わせガラス部材と上記赤外線反射層との間に配置される樹脂層全体をいう。本明細書において、「第2の樹脂層」とは、上記第2の合わせガラス部材と上記赤外線反射層との間に配置される樹脂層全体をいう。
第1の樹脂層は、樹脂(以下、樹脂(1)と記載することがある)を含む。第1の樹脂層は、樹脂(1)として、ポリビニルアセタール樹脂(以下、ポリビニルアセタール樹脂(1)と記載することがある)を含むことが好ましい。第2の樹脂層は、樹脂(以下、樹脂(2)と記載することがある)を含む。第2の樹脂層は、樹脂(2)として、ポリビニルアセタール樹脂(以下、ポリビニルアセタール樹脂(2)と記載することがある)を含むことが好ましい。
樹脂層の接着力をより一層高める観点からは、上記第1の樹脂層は、可塑剤(以下、可塑剤(1)と記載することがある)を含むことが好ましい。樹脂層の接着力をより一層高める観点からは、上記第2の樹脂層は、可塑剤(以下、可塑剤(2)と記載することがある)を含むことが好ましい。樹脂層に含まれている樹脂が、ポリビニルアセタール樹脂である場合に、樹脂層は、可塑剤を含むことが特に好ましい。ポリビニルアセタール樹脂を含む層は、可塑剤を含むことが好ましい。
上記第1の樹脂層は、遮熱性物質を含むことが好ましい。上記第2の樹脂層は、遮熱性物質を含むことが好ましい。上記遮熱性物質は、1種のみが用いられてもよく、2種以上が併用されてもよい。
上記第1の樹脂層は、アルカリ金属塩、アルカリ土類金属塩又はマグネシウム塩である金属塩(以下、金属塩Mと記載することがある)を含むことが好ましい。上記第2の樹脂層は、上記金属塩Mを含むことが好ましい。上記金属塩Mの使用により、樹脂層と赤外線反射層及び合わせガラス部材との接着性を制御することが容易になる。上記金属塩Mは、1種のみが用いられてもよく、2種以上が併用されてもよい。
上記第1の樹脂層は、紫外線遮蔽剤を含むことが好ましい。上記第2の樹脂層は、紫外線遮蔽剤を含むことが好ましい。紫外線遮蔽剤の使用により、合わせガラスが長期間使用されても、可視光線透過率がより一層低下し難くなる。上記紫外線遮蔽剤は、1種のみが用いられてもよく、2種以上が併用されてもよい。
上記第1の樹脂層は、酸化防止剤を含むことが好ましい。上記第2の樹脂層は、酸化防止剤を含むことが好ましい。上記酸化防止剤は、1種のみが用いられてもよく、2種以上が併用されてもよい。
上記第1の樹脂層及び上記第2の樹脂層はそれぞれ、必要に応じて、カップリング剤、分散剤、界面活性剤、難燃剤、帯電防止剤、顔料、染料、金属塩以外の接着力調整剤、耐湿剤、蛍光増白剤及び赤外線吸収剤等の添加剤を含んでいてもよい。これらの添加剤は、1種のみが用いられてもよく、2種以上が併用されてもよい。
本発明に係る合わせガラスの取り付け方法は、上述した合わせガラスを、建築物又は車両において外部空間と該外部空間から熱線が入射される内部空間との間の開口部に取り付ける方法である。
本発明に係る合わせガラスは、ヘッドアップディスプレイである合わせガラスであり、ヘッドアップディスプレイシステムに用いることができる。本発明に係る中間膜は、ヘッドアップディスプレイである合わせガラスに用いられる合わせガラス用中間膜であり、ヘッドアップディスプレイシステムに用いることができる。上記合わせガラスは、ヘッドアップディスプレイシステムに用いることができる合わせガラスであることが好ましい。
(実施例1~9,17及び比較例1,3)
第1の合わせガラス部材:
下記の表1,2,4に示す厚み及び楔角を有するクリアガラスを用意した。なお、楔角が0mradである場合は、形状が楔状ではなく、矩形であることを意味する。
以下の成分を配合し、ミキシングロールで充分に混練し、第1の樹脂層を形成するための組成物を得た。
トリエチレングリコールジ-2-エチルヘキサノエート(3GO)40重量部
得られる第1の樹脂層中で0.28重量%となる量のITO粒子(三菱マテリアル社製)
得られる第1の樹脂層中で0.2重量%となる量のTinuvin326(2-(2’-ヒドロキシ-3’-t-ブチル-5-メチルフェニル)-5-クロロベンゾトリアゾール、BASF社製「Tinuvin326」)
得られる第1の樹脂層中で0.2重量%となる量のBHT(2,6-ジ-t-ブチル-p-クレゾール)
下記の表1,2,4に示す厚み及び楔角を有するクリアガラス上に、下記の表1,2,4に示す厚み及び楔角を有する赤外線反射層(XIR-75(金属箔付き樹脂フィルム、Southwall Technologies社製「XIR-75」))を形成して、赤外線反射層付き第2の合わせガラス部材を得た。なお、赤外線反射層における金属箔は、In2O3/Ag/In2O3/Ag/In2O3の5層の構造を有する。
第1の合わせガラス部材と、第1の樹脂層と、赤外線反射層と、第2の合わせガラス部材とをこの順で積層して、合わせガラスを得た。
第1の合わせガラス部材:
下記の表4に示す厚み及び楔角を有するクリアガラスを用意した。なお、楔角が0mradである場合は、形状が楔状ではなく、矩形であることを意味する。
以下の成分を配合し、ミキシングロールで充分に混練し、第1の樹脂層(多層)を形成するための組成物Aを得た。
トリエチレングリコールジ-2-エチルヘキサノエート(3GO)65重量部
得られる組成物A層中で0.2重量%となる量のTinuvin326(2-(2’-ヒドロキシ-3’-t-ブチル-5-メチルフェニル)-5-クロロベンゾトリアゾール、BASF社製「Tinuvin326」)
得られる組成物A層中で0.2重量%となる量のBHT(2,6-ジ-t-ブチル-p-クレゾール)
トリエチレングリコールジ-2-エチルヘキサノエート(3GO)36重量部
得られる組成物B層中で0.2重量%となる量のTinuvin326(2-(2’-ヒドロキシ-3’-t-ブチル-5-メチルフェニル)-5-クロロベンゾトリアゾール、BASF社製「Tinuvin326」)
得られる組成物B層中で0.2重量%となる量のBHT(2,6-ジ-t-ブチル-p-クレゾール)
下記の表4に示す厚み及び楔角を有するクリアガラス上に、下記の表4に示す厚み及び楔角を有する赤外線反射層(XIR-75(金属箔付き樹脂フィルム、Southwall Technologies社製「XIR-75」))を形成して、赤外線反射層付き第2の合わせガラス部材を得た。なお、赤外線反射層における金属箔は、In2O3/Ag/In2O3/Ag/In2O3の5層の構造を有する。
第1の合わせガラス部材と、第1の樹脂層と、赤外線反射層と、第2の合わせガラス部材とをこの順で積層して、合わせガラスを得た。
赤外線反射層を用いなかったこと、並びに第2の合わせガラス部材の厚みを下記の表1に示すように設定したこと以外は実施例1と同様にして、合わせガラスを得た。
(参考例10~16及び比較例4,5)
第1の合わせガラス部材:
下記の表3,4に示す厚み及び楔角を有するクリアガラスを用意した。なお、楔角が0mradである場合は、形状が楔状ではなく、矩形であることを意味する。
以下の成分を配合し、ミキシングロールで充分に混練し、第1の樹脂層及び第2の樹脂層を形成するための組成物を得た。
トリエチレングリコールジ-2-エチルヘキサノエート(3GO)40重量部
得られる第1,第2の樹脂層中で0.28重量%となる量のITO粒子(三菱マテリアル社製)
得られる第1,第2の樹脂層中で0.2重量%となる量のTinuvin326(2-(2’-ヒドロキシ-3’-t-ブチル-5-メチルフェニル)-5-クロロベンゾトリアゾール、BASF社製「Tinuvin326」)
得られる第1,第2の樹脂層中で0.2重量%となる量のBHT(2,6-ジ-t-ブチル-p-クレゾール)
下記の表3,4に示す種類及び厚みを有する赤外線反射層を用意した。
XIR-75(金属箔付き樹脂フィルム、Southwall Technologies社製「XIR-75」)なお、XIR-75における金属箔は、In2O3/Ag/In2O3/Ag/In2O3の5層の構造を有する。
Nano90S(多層樹脂フィルム、住友スリーエム社製「マルチレイヤー Nano 90S」)
下記の表3,4に示す厚み及び楔角を有するクリアガラスを用意した。なお、楔角が0mradである場合は、形状が楔状ではなく、矩形であることを意味する。
第1の合わせガラス部材と、第1の樹脂層と、赤外線反射層と、第2の樹脂層と、第2の合わせガラス部材とをこの順で積層して、合わせガラスを得た。
第1の合わせガラス部材:
下記の表4に示す厚み及び楔角を有するクリアガラスを用意した。なお、楔角が0mradである場合は、形状が楔状ではなく、矩形であることを意味する。
以下の成分を配合し、ミキシングロールで充分に混練し、第1の樹脂層(多層)を形成するための組成物Aを得た。
トリエチレングリコールジ-2-エチルヘキサノエート(3GO)65重量部
得られる組成物A層中で0.2重量%となる量のTinuvin326(2-(2’-ヒドロキシ-3’-t-ブチル-5-メチルフェニル)-5-クロロベンゾトリアゾール、BASF社製「Tinuvin326」)
得られる組成物A層中で0.2重量%となる量のBHT(2,6-ジ-t-ブチル-p-クレゾール)
トリエチレングリコールジ-2-エチルヘキサノエート(3GO)36重量部
得られる組成物B層中で0.2重量%となる量のTinuvin326(2-(2’-ヒドロキシ-3’-t-ブチル-5-メチルフェニル)-5-クロロベンゾトリアゾール、BASF社製「Tinuvin326」)
得られる組成物B層中で0.2重量%となる量のBHT(2,6-ジ-t-ブチル-p-クレゾール)
以下の成分を配合し、ミキシングロールで充分に混練し、第2の樹脂層を形成するための組成物を得た。
トリエチレングリコールジ-2-エチルヘキサノエート(3GO)40重量部
得られる第2の樹脂層中で0.28重量%となる量のITO粒子(三菱マテリアル社製)
得られる第2の樹脂層中で0.2重量%となる量のTinuvin326(2-(2’-ヒドロキシ-3’-t-ブチル-5-メチルフェニル)-5-クロロベンゾトリアゾール、BASF社製「Tinuvin326」)
得られる第2の樹脂層中で0.2重量%となる量のBHT(2,6-ジ-t-ブチル-p-クレゾール)
下記の表4に示す種類及び厚みを有する赤外線反射層を用意した。
Nano90S(多層樹脂フィルム、住友スリーエム社製「マルチレイヤー Nano 90S」)
下記の表4に示す厚み及び楔角を有するクリアガラスを用意した。なお、楔角が0mradである場合は、形状が楔状ではなく、矩形であることを意味する。
第1の合わせガラス部材と、第1の樹脂層と、赤外線反射層と、第2の樹脂層と、第2の合わせガラス部材とをこの順で積層して、合わせガラスを得た。
(1)赤外線反射層の波長800nm~1200nmでの赤外線反射率
上記赤外線反射層の波長800nm~1200nmでの赤外線反射率を以下のようにして測定した。分光光度計(日立ハイテク社製「U-4100」)を用いて、JIS R3106:1998に準拠して、赤外線反射層の波長800nm~1200nmにおける各波長の反射率を測定し、反射率が最も低い値を表に示した。
上記赤外線反射層の波長380nm~780nmでの可視光線透過率を、分光光度計(日立ハイテク社製「U-4100」)を用いて、JIS R3211:1998に準拠して、波長380nm~780nmにて測定した。
分光光度計(日立ハイテク社製「U-4100」)を用いて、波長300nm~2500nmの透過率/反射率を測定して、Ttsを算出した。
図13に示す装置50を用いて、反射像を測定した。合わせガラスの表示領域に第1の合わせガラス部材の外側から入射角度68.3°で光を照射して、表示領域から2500mmの位置にて反射像を観察した。第1の合わせガラス部材による第1の反射像(T1)と、赤外線反射層による第2の反射像(T2)との距離を測定した。赤外線反射層による第2の反射像(T2)と、第2の合わせガラス部材による第3の反射像(T3)との距離を測定した。第1の合わせガラス部材による第1の反射像(T1)と、第2の合わせガラス部材による第3の反射像(T3)との距離を測定した。
合わせガラスの表示領域に第1の合わせガラス部材の外側から入射角度68.3°で光を照射して、表示領域から2500mmの位置にて文字の表示画像を観察した。画像表示を下記の基準で判定した。
○○:文字の表示画像が滲まずにはっきりと見え、文字を認識可能。
○:文字の表示画像がわずかに滲んで見えるが、文字を認識可能。
×:文字の表示画像が多重にみえ、文字を認識しにくい。
2,2I,2J,2K…第1の樹脂層
3,3A,3B,3E…赤外線反射層
4,4A,4B,4C,4D,4J…第2の樹脂層
5,5B,5C,5D,5G,5H,5J…第2の合わせガラス部材
11,11A,11B,11C,11D,11E,11F,11G,11H,11I,11J,11K…合わせガラス
11a…一端
11b…他端
21,22,23…層
R1…表示領域
R2…周囲領域
R3…シェード領域
Claims (12)
- ヘッドアップディスプレイである合わせガラスであり、
前記合わせガラスは、ヘッドアップディスプレイの表示領域を有し、
前記合わせガラスは、第1の合わせガラス部材と、第1の樹脂層と、赤外線反射層と、第2の合わせガラス部材とを備え、前記第1の合わせガラス部材と、前記第1の樹脂層と、前記赤外線反射層と、前記第2の合わせガラス部材とがこの順で並んで配置されており、前記第1の樹脂層が遮熱性物質を含み、前記赤外線反射層が、800nm~2000nmの範囲内の少なくとも1つの波長において、赤外線透過率が40%以下である性質を有し、前記第1の合わせガラス部材と前記第1の樹脂層との積層体が楔状である合わせガラスであり、
前記合わせガラスの前記表示領域に前記第1の合わせガラス部材の外側から入射角度68.3°で光を照射して、前記表示領域から2500mmの位置にて反射像を観察したときに、前記第1の合わせガラス部材による第1の反射像と前記赤外線反射層による第2の反射像と前記第2の合わせガラス部材による第3の反射像との3つの反射像のうちの、最も離れた2つの反射像の距離が2.5mm以下である、合わせガラス。 - 前記赤外線反射層と前記第2の合わせガラス部材との積層体の厚みが、2.93mm以下であるか、又は、前記赤外線反射層と前記第2の合わせガラス部材との積層体が、楔状である、請求項1に記載の合わせガラス。
- 前記赤外線反射層と前記第2の合わせガラス部材との積層体の厚みが、2.93mm以下である、請求項2に記載の合わせガラス。
- 前記赤外線反射層と前記第2の合わせガラス部材との積層体が、楔状である、請求項2又は3に記載の合わせガラス。
- 前記赤外線反射層が、楔状である、請求項2~4のいずれか1項に記載の合わせガラス。
- 前記第1の樹脂層が、樹脂としてポリビニルアセタール樹脂を含む、請求項1~5のいずれか1項に記載の合わせガラス。
- 前記第1の樹脂層が可塑剤を含む、請求項1~6のいずれか1項に記載の合わせガラス。
- 前記第1の樹脂層が、2層以上の構造を有する、請求項1~7のいずれか1項に記載の合わせガラス。
- 前記赤外線反射層の波長800nm~1200nmでの赤外線反射率が20%以上である、請求項1~8のいずれか1項に記載の合わせガラス。
- 前記赤外線反射層の波長380nm~780nmでの可視光線透過率が70%以上である、請求項1~9のいずれか1項に記載の合わせガラス。
- 前記合わせガラスのISO 13837に準拠して測定されるTtsが60%以下である、請求項1~10のいずれか1項に記載の合わせガラス。
- 請求項1~11のいずれか1項に記載の合わせガラスを、車両において、外部空間と前記外部空間から熱線が入射される内部空間との間の開口部に取り付ける方法であって、
前記第1の合わせガラス部材が、前記内部空間側に位置するように、かつ前記第2の合わせガラス部材が前記外部空間側に位置するように、前記合わせガラスを前記開口部に取り付ける、合わせガラスの取り付け方法。
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