JP7157829B2 - 電気的に切替可能な光学特性及び改善された電気的接触を有する複層フィルム - Google Patents
電気的に切替可能な光学特性及び改善された電気的接触を有する複層フィルム Download PDFInfo
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- JP7157829B2 JP7157829B2 JP2020572734A JP2020572734A JP7157829B2 JP 7157829 B2 JP7157829 B2 JP 7157829B2 JP 2020572734 A JP2020572734 A JP 2020572734A JP 2020572734 A JP2020572734 A JP 2020572734A JP 7157829 B2 JP7157829 B2 JP 7157829B2
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Description
I 複層フィルム1を提供すること
II 第1の導電層3にレーザーによって分離ライン10を導入し、これにより、第1の導電層3の残りの領域から電気的に絶縁されるエッジ領域16を分離すること、
及び
第2の導電層4にレーザーによって分離ライン10を導入し、これにより、第2の導電層4の残りの領域から電気的に絶縁されるエッジ領域16を分離すること、
III 第1の導電層3における分離ライン10によって工程IIで作製した電気的に絶縁されたエッジ領域16に、貫通孔の形態で複数の第1の切欠部7.1を打ち抜くこと、
及び
第2の導電層における分離ライン10によって工程IIで作製した電気的に絶縁されたエッジ領域16に、貫通孔の形態で複数の第2の切欠部7.2を打ち抜くこと、
IV 第1のバスバー9.1を、第1の切欠部7.1の領域で第1のキャリアフィルム5の外側表面に配置し、接着ストリップによってバスバー9.1を固定すること、
及び
第2のバスバー9.2を、第2の切欠部7.2の領域で第2のキャリアフィルム6の外側表面に配置し、接着ストリップによってバスバー9.2を固定すること、
V 第1の切欠部7.1及び第2の切欠部7.2を、導電性充填化合物8で充填すること。
本発明の実施態様の一部を以下の項目1~15に記載する。
〈項目1〉電気的に切換可能な光学特性を有する複層フィルム(1)であって、少なくとも、以下の順序で面状に配置されている以下を含む、複層フィルム(1):
-第1のキャリアフィルム(5)、
-第1の導電層(3)、
-活性層(2)、
-第2の導電層(4)、及び
-第2のキャリアフィルム(6)、
ここで、
-前記複層フィルム(1)が、その領域内に少なくとも1つの第1の切欠部(7.1)を有し、かつ少なくとも1つの前記第1の切欠部(7.1)が、前記複層フィルム(1)の全層を貫通する貫通孔の形態で突き抜けており、
-前記第1の切欠部(7.1)が、導電性充填化合物(8)で充填されており、前記導電性充填化合物(8)は、第1の切欠部(7.1)内で第1の導電層(3)と導電接触しており、かつ、
-第1のバスバー(9.1)が、前記導電性充填化合物(8)と導電接触している。
〈項目2〉前記複層フィルム(1)が、その領域内に、前記複層フィルム(1)の全層を貫通する貫通孔の形態である少なくとも1つの第2の切欠部(7.2)を有し、前記第2の切欠部(7.2)が、導電性充填化合物(8)で充填されており、前記導電性充填化合物(8)が、前記第2の切欠部(7.2)内で前記第2の導電層(4)と導電接触しており、かつ、第2のバスバー(9.2)が、前記導電性充填化合物(8)と導電接触している、項目1に記載の複層フィルム(1)。
〈項目3〉前記バスバー(9.1、9.2)とそれぞれの前記導電層(3、4)との間の導電接続は、専ら充填化合物(8)を介して生じている、項目1又は2に記載の複層フィルム(1)。
〈項目4〉-前記切欠部(7)が、前記複層フィルム(1)の全層にわたって突き抜けており、
-層を含まない少なくとも1つの分離ライン(10)が、前記第1の導電層(3)内に導入されており、前記分離ラインが、少なくとも1つの前記第1の切欠部(7.1)又は少なくとも1つの前記第2の切欠部(7.2)を含む電気的に絶縁されているエッジ領域(16)を、前記第1の導電層(3)の主表面から分離しており、
-層を含まない少なくとも1つの分離ライン(10)が、前記第2の導電層(4)内に導入されており、前記分離ラインは電気的に絶縁されたエッジ領域(16)を、前記第2の導電層(4)の主表面から分離しており、前記第2の導電層(4)の電気的に絶縁されたエッジ領域(16)が、前記切欠部(7)のうちの、前記第1の導電層(3)の電気的に絶縁されたエッジ領域(16)内に延在しない前記切欠部(7)を含む、
項目1~3のいずれか一項に記載の複層フィルム(1)。
〈項目5〉少なくとも2つの第1の切欠部(7.1)及び少なくとも2つの第2の切欠部(7.2)がそれぞれ複層フィルム(1)に導入されている、項目1~4のいずれか一項に記載の複層フィルム(1)。
〈項目6〉複数の前記第1の切欠部(7.1)が、前記第1のバスバー(9.1)に実質的に沿って広がっており、複数の前記第2の切欠部(7.2)が、前記第2のバスバー(9.2)に実質的に沿って広がっている、項目5に記載の複層フィルム(1)。
〈項目7〉前記切欠部(7)が、前記バスバー(9)の全長に沿って配置されており、かつ前記第1のバスバー(9.1)に沿った2つの隣接する前記第1の切欠部(7.1)間の距離及び/又は前記第2のバスバー(9.2)に沿った2つの隣接する前記第2の切欠部(7.2)間の距離が、2mm~200mm、好ましくは5mm~100mm、特に好ましくは10mm~20mmである、項目6に記載の複層フィルム(1)。
〈項目8〉前記導電性充填化合物(8)が、少なくとも1種の導電性金属又は少なくとも1種の導電性金属合金を含む金属ペーストを含み、好ましくは銀ペーストを含む、項目1~7のいずれか一項に記載の複層フィルム(1)。
〈項目9〉前記第1の導電層(3)及び前記第2の導電層(4)が、少なくとも1種の金属、1種の金属合金、又は少なくとも1種の透明導電性酸化物、好ましくは少なくとも1種の透明導電性酸化物を含有しており、かつ10nm~2μmの厚さを有する、項目1~8のいずれか一項に記載の複層フィルム(1)。
〈項目10〉前記第1のキャリアフィルム(5)及び/又は前記第2のキャリアフィルム(6)が、少なくとも1つの非熱可塑性ポリマー、好ましくはポリエチレンテレフタレートを含有している、項目1~9のいずれか一項に記載の複層フィルム(1)。
〈項目11〉前記活性層(2)が、SPD、PDLC、エレクトロクロミック、又はエレクトロルミネセンス層である、項目1~10のいずれか一項に記載の複層フィルム(1)。
〈項目12〉互いに面状に積層されている以下の層を少なくとも含む、複合ペイン(11):
-第1のペイン(12)、
-第1の熱可塑性フィルム(14)
-項目1~11のいずれか一項に記載の複層フィルム(1)、
-第2の熱可塑性フィルム(15)
-第2のペイン(13)。
〈項目13〉少なくとも以下を含む、項目1~11のいずれか一項に記載の電気的に切替可能な光学特性を有する複層フィルム(1)の製造方法:
(a)1つの複層フィルム(1)を提供すること、
(b)少なくとも1つの第1の切欠部(7.1)を、前記複層フィルム(1)に貫通孔の形態で作製すること、
(c)少なくとも1つの前記第1の切欠部(7.1)を、導電性充填化合物(8)で充填すること、
(d)前記第1の切欠部(7.1)の領域で、前記第1のキャリアフィルム(5)の外側表面に第1のバスバー(9.1)を適用すること、
ここで、工程(d)は、工程(c)の前又は後に行うことができ、少なくとも第1の導電層(3)を、前記導電性充填化合物(8)を介して前記第1のバスバー(9.1)と電気的に接触させる。
〈項目14〉工程(b)の前、間、又は後に、少なくとも1つの第2の切欠部(7.2)を前記複層フィルム(1)の主表面における貫通孔として作製し、少なくとも1つの前記第2の切欠部(7.2)を導電性充填化合物(8)で充填し、
第2のバスバー(9.2)を、前記導電性充填化合物(8)の領域で前記第2のキャリアフィルム(6)の外側表面に適用し、そして前記導電性充填化合物(8)と電気的に接触させ、
少なくとも第2の導電層(4)を、前記導電性充填化合物(8)を介して前記第2のバスバー(9.2)と接触させる、
項目13に記載の方法。
〈項目15〉項目1~11のいずれか一項に記載の複層フィルムの、内部又は外部での、自動車用グレージング、建物用グレージング、好ましくは自動車用グレージング、特に複合ペインとして実施される自動車用グレージングにおける使用。
2 複層フィルム1の活性層
3 複層フィルム1の第1の導電層
4 複層フィルム1の第2の導電層
5 複層フィルム1の第1のキャリアフィルム
6 複層フィルム1の第2のキャリアフィルム
7 切欠部
7.1 第1の切欠部
7.2 第2の切欠部
8 導電性充填化合物
9 バスバー
9.1 第1のバスバー
9.2 第2のバスバー
10 層のない分離ライン
11 複合ペイン
12 第1のペイン
13 第2のペイン
14 第1の熱可塑性フィルム
15 第2の熱可塑性フィルム
16 電気的に絶縁されたエッジ領域
17 不透明なコーティング
A-A’ 断面線
Claims (12)
- 電気的に切換可能な光学特性を有する複層フィルム(1)であって、少なくとも、以下の順序で面状に配置されている以下を含む、複層フィルム(1):
-第1のキャリアフィルム(5)、
-第1の導電層(3)、
-活性層(2)、
-第2の導電層(4)、及び
-第2のキャリアフィルム(6)、
ここで、
-前記複層フィルム(1)が、その領域内に少なくとも1つの第1の切欠部(7.1)を有し、かつ前記第1の切欠部(7.1)が、前記複層フィルム(1)の全層を貫通する貫通孔の形態で突き抜けており、前記第1の切欠部(7.1)が、導電性充填化合物(8)で充填されており、前記導電性充填化合物(8)は、第1の切欠部(7.1)内で第1の導電層(3)と導電接触しており、かつ、第1のバスバー(9.1)が、前記導電性充填化合物(8)と導電接触しており、
-前記複層フィルム(1)が、その領域内に、少なくとも1つの第2の切欠部(7.2)を有し、前記第2の切欠部が、前記複層フィルム(1)の全層を貫通する貫通孔の形態で突き抜けており、前記第2の切欠部(7.2)が、導電性充填化合物(8)で充填されており、前記導電性充填化合物(8)が、前記第2の切欠部(7.2)内で前記第2の導電層(4)と導電接触しており、かつ、第2のバスバー(9.2)が、前記第2の切欠部の前記導電性充填化合物(8)と導電接触しており、
-導電層を含まない少なくとも1つの分離ライン(10)が、前記第1の導電層(3)内に導入されており、前記分離ラインが、少なくとも1つの前記第2の切欠部(7.2)を含む電気的に絶縁されているエッジ領域(16)を、前記第1の導電層(3)の主表面から分離しており、
-導電層を含まない少なくとも1つの分離ライン(10)が、前記第2の導電層(4)内に導入されており、前記分離ラインが、少なくとも1つの前記第1の切欠部(7.1)を含む電気的に絶縁されたエッジ領域(16)を、前記第2の導電層(4)の主表面から分離している。 - 前記バスバー(9.1、9.2)とそれぞれの前記導電層(3、4)との間の導電接続は、専ら充填化合物(8)を介して生じている、請求項1に記載の複層フィルム(1)。
- 少なくとも2つの第1の切欠部(7.1)及び少なくとも2つの第2の切欠部(7.2)がそれぞれ複層フィルム(1)に導入されている、請求項1又は2に記載の複層フィルム(1)。
- 複数の前記第1の切欠部(7.1)が、前記第1のバスバー(9.1)に実質的に沿って広がっており、複数の前記第2の切欠部(7.2)が、前記第2のバスバー(9.2)に実質的に沿って広がっている、請求項3に記載の複層フィルム(1)。
- 前記切欠部(7)が、前記バスバー(9)の全長に沿って配置されており、かつ前記第1のバスバー(9.1)に沿った2つの隣接する前記第1の切欠部(7.1)間の距離及び/又は前記第2のバスバー(9.2)に沿った2つの隣接する前記第2の切欠部(7.2)間の距離が、2mm~200mmである、請求項4に記載の複層フィルム(1)。
- 前記導電性充填化合物(8)が、少なくとも1種の導電性金属又は少なくとも1種の導電性金属合金を含む金属ペーストを含む、請求項1~5のいずれか一項に記載の複層フィルム(1)。
- 前記第1の導電層(3)及び前記第2の導電層(4)が、少なくとも1種の金属、1種の金属合金、又は少なくとも1種の透明導電性酸化物を含有しており、かつ10nm~2μmの厚さを有する、請求項1~7のいずれか一項に記載の複層フィルム(1)。
- 前記第1のキャリアフィルム(5)及び/又は前記第2のキャリアフィルム(6)が、少なくとも1つの非熱可塑性ポリマーを含有している、請求項1~7のいずれか一項に記載の複層フィルム(1)。
- 前記活性層(2)が、SPD、PDLC、エレクトロクロミック、又はエレクトロルミネセンス層である、請求項1~8のいずれか一項に記載の複層フィルム(1)。
- 互いに面状に積層されている以下の層を少なくとも含む、複合ペイン(11):
-第1のペイン(12)、
-第1の熱可塑性フィルム(14)
-請求項1~9のいずれか一項に記載の複層フィルム(1)、
-第2の熱可塑性フィルム(15)
-第2のペイン(13)。 - 少なくとも以下を含む、請求項1~9のいずれか一項に記載の電気的に切替可能な光学特性を有する複層フィルム(1)の製造方法:
(a)1つの複層フィルム(1)を提供すること、
(b)少なくとも1つの第1の切欠部(7.1)を、前記複層フィルム(1)に貫通孔の形態で作製すること、
(c)少なくとも1つの前記第1の切欠部(7.1)を、導電性充填化合物(8)で充填すること、
(d)前記第1の切欠部(7.1)の領域で、前記第1のキャリアフィルム(5)の外側表面に第1のバスバー(9.1)を適用すること、
ここで、工程(d)は、工程(c)の前又は後に行うことができ、少なくとも第1の導電層(3)を、前記導電性充填化合物(8)を介して前記第1のバスバー(9.1)と電気的に接触させ、
工程(b)の前、間、又は後に、少なくとも1つの第2の切欠部(7.2)を前記複層フィルム(1)の主表面における貫通孔として作製し、少なくとも1つの前記第2の切欠部(7.2)を導電性充填化合物(8)で充填し、
第2のバスバー(9.2)を、前記導電性充填化合物(8)の領域で前記第2のキャリアフィルム(6)の外側表面に適用し、そして前記導電性充填化合物(8)と電気的に接触させ、
少なくとも第2の導電層(4)を、前記導電性充填化合物(8)を介して前記第2のバスバー(9.2)と接触させる。 - 請求項1~9のいずれか一項に記載の複層フィルムの、内部又は外部での、自動車用グレージング、建物用グレージングにおける使用。
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