TW201841753A - 玻璃樹脂積層體 - Google Patents

玻璃樹脂積層體 Download PDF

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Publication number
TW201841753A
TW201841753A TW107111714A TW107111714A TW201841753A TW 201841753 A TW201841753 A TW 201841753A TW 107111714 A TW107111714 A TW 107111714A TW 107111714 A TW107111714 A TW 107111714A TW 201841753 A TW201841753 A TW 201841753A
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TW
Taiwan
Prior art keywords
glass
functional film
glass sheet
resin
adhesive layer
Prior art date
Application number
TW107111714A
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English (en)
Other versions
TWI734906B (zh
Inventor
磯本武彦
野崎靖彦
田中義雄
Original Assignee
日商日本電氣硝子股份有限公司
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Publication of TW201841753A publication Critical patent/TW201841753A/zh
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Abstract

玻璃樹脂積層體1包括：樹脂層2、玻璃片3、將所述玻璃片3與樹脂層2接合的接著層4、以及介隔存在於接著層4的內部的功能性膜5。接著層4包括：位於樹脂層2與功能性膜5之間的第一部分4a、位於玻璃片3與功能性膜5之間的第二部分4b、以及將第一部分4a的端部與第二部分4b的端部融合而成的融合部4c。

Description

玻璃樹脂積層體
本發明是有關於一種將玻璃片與樹脂層積層而成的玻璃樹脂積層體。
眾所周知，玻璃的耐候性、耐化學品性、耐擦傷性優異，另一方面具有對物理衝擊或熱衝擊容易發生破損的缺點。為了解決所述缺點，提出了例如於玻璃片的一個面或兩面貼合樹脂層的玻璃樹脂積層體。與玻璃相比，樹脂的耐候性、耐化學品性、耐擦傷性差，另一方面具有相較於玻璃而言比重小、對物理衝擊強的優點。因此，於玻璃樹脂積層體中，可藉由各自的長處來彌補玻璃片與樹脂層各自的短處，且與具有相同板厚的玻璃片相比，可實現大幅的輕量化。
進而，近年來藉由使玻璃片與樹脂層之間介隔存在功能性膜，亦開發出了發揮適合於各種用途的功能的玻璃樹脂積層體。例如，專利文獻1中揭示了一種玻璃樹脂積層體，即，於樹脂層的兩面介隔接著層而使玻璃片積層一體化，於樹脂層的至少單面側，在接著層中設置有中間片而成。所述玻璃樹脂積層體中的中間片具有紅外線遮蔽功能、電磁波遮蔽功能、設計性等各種功能。
關於所述玻璃樹脂積層體的具體構成，一面參照圖10，一面進行說明。圖10所示的玻璃樹脂積層體101包括樹脂層102、玻璃片103、接著層104、中間片（功能性膜）105。接著層104包括以片狀構成的第一部分104a及第二部分104b。中間片105配置於該些第一部分104a與第二部分104b之間。另外，中間片105具有與樹脂層102及玻璃片103相同的尺寸，成為其端面105a露出的狀態。 [現有技術文獻] [專利文獻]
專利文獻1：日本專利特開2016-117191號公報
[發明所欲解決之課題]
如上所述，若中間片105的端面105a露出，則有受到大氣中的水分所帶來的影響，或者由於所述端面105a的損傷，而導致中間片105的功能喪失或以端面105a為基點中間片105發生剝離之虞。
本發明是鑒於所述情況而成，其技術性課題在於防止玻璃樹脂積層體中所含的功能性膜的功能喪失或剝離。 [解決課題之手段]
本發明用以解決所述課題，且為一種玻璃樹脂積層體，其包括：樹脂層、玻璃片、將所述玻璃片與所述樹脂層接合的接著層、以及介隔存在於所述接著層的內部的功能性膜，且所述玻璃樹脂積層體的特徵在於：所述接著層包括位於所述樹脂層與所述功能性膜之間的第一部分、位於所述玻璃片與所述功能性膜之間的第二部分、以及將所述第一部分的端部與所述第二部分的端部融合而成的融合部。
藉由所述構成，可構成為，藉由利用接著層中的第一部分與第二部分的融合部來被覆功能性膜的端部，使功能性膜的端部於玻璃樹脂積層體的端部不露出。因此，功能性膜的端面不會接觸外部空氣，亦不會與異物接觸而受到損傷。藉此，可確實地防止功能性膜的功能喪失或剝離。
理想的是所述功能性膜的面積設定為比所述玻璃片的面積小，所述功能性膜的端部位於所述玻璃片的端部的更內側。如此，藉由將功能性膜的端部配置於玻璃片的端部的更內側，可利用玻璃片被覆功能性膜整體而加以保護。
理想的是所述玻璃片的面積設定為比所述樹脂層的面積小，所述玻璃片的端部位於所述樹脂層的端部的更內側。藉此，可防止由於異物的接觸所引起的對玻璃片的端部的損傷。
所述融合部較佳為於所述樹脂層的端部與所述玻璃片的端部之間露出。藉此，可利用融合部較佳地保護不僅功能性膜的端部而且玻璃片的端部。
於所述構成的玻璃樹脂積層體中，亦可構成為，所述樹脂層包含第一面與第二面，所述玻璃片包含積層於所述第一面的第一玻璃片、以及積層於所述第二面的第二玻璃片，所述接著層包含將所述第一玻璃片與所述第一面接合的第一接著層、以及將所述第二玻璃片與所述第二面接合的第二接著層，所述功能性膜介隔存在於所述第一接著層與所述第二接著層的至少一者的內部。
另外，於所述構成的玻璃樹脂積層體中，亦可為所述功能性膜包含介隔存在於所述第一接著層的內部的第一功能性膜、以及介隔存在於所述第二接著層的內部的第二功能性膜。藉由具備多個功能性膜，玻璃樹脂積層體成為具有多功能性者。 [發明的效果]
藉由本發明，可防止玻璃樹脂積層體中所含的功能性膜的功能喪失或剝離。
以下，參照圖式對用以實施本發明的形態進行說明。圖1至圖6表示本發明的玻璃樹脂積層體及其製造方法的第一實施形態。
如圖1所示，玻璃樹脂積層體1包括：樹脂層2、積層於樹脂層2的第一面2a的玻璃片3、將玻璃片3與樹脂層2接合的接著層4、以及介隔存在於接著層4的內部的功能性膜5。
如圖2所示，玻璃樹脂積層體1以正方形狀構成，但並不限定於該形狀。樹脂層2、玻璃片3、接著層4及功能性膜5對應於玻璃樹脂積層體1的形狀而以正方形狀構成。本實施形態的玻璃樹脂積層體1中，樹脂層2的面積最大，玻璃片3的面積其次大，功能性膜5的面積最小。接著層4的面積與樹脂層2的面積為相同程度。
因此，如圖2所示，樹脂層2的一邊的長度尺寸D1比玻璃片3的一邊的長度尺寸D2長。接著層4的一邊的長度尺寸D3與樹脂層2的一邊的長度尺寸D1大致相等。功能性膜5的一邊的長度尺寸D4比玻璃片3的一邊的長度尺寸D2短。
樹脂層2的一邊的長度尺寸D1與玻璃片3的一邊的長度尺寸D2的差（D1-D2）較佳為設為4 mm以下。樹脂層2的一邊與對應的玻璃片3的一邊的間隔W1較佳為設為2 mm以下，更佳為1 mm以上且2 mm以下。另外，玻璃片3的一邊的長度尺寸D2與功能性膜5的一邊的長度尺寸D4的差（D2-D4）較佳為設為4 mm以下。玻璃片3的一邊與對應的功能性膜5的一邊的間隔W2較佳為設為2 mm以下，更佳為1 mm以上且2 mm以下。
樹脂層2具有第一面2a、第二面2b、以及第一面2a與第二面2b之間的端部（端面）2c。樹脂層2由具有與第一面2a與第二面2b大致相同面積的樹脂製的板或膜構成。本實施形態中，於樹脂層2的第一面2a積層有玻璃片3。樹脂層2的厚度設為0.01 mm以上且20 mm以下，更佳為0.05 mm以上且15 mm以下，最佳為0.1 mm以上且10 mm以下。
作為樹脂層2的材質，較佳為聚碳酸酯、聚甲基丙烯酸甲酯樹脂（Polymethyl Methacrylate，PMMA），除此以外，可利用聚對苯二甲酸乙二酯、聚醚醚酮（polyether ether ketone，PEEK）、聚醯胺、聚氯乙烯、聚乙烯、聚丙烯、聚萘二甲酸乙二酯等各種樹脂材料。
玻璃片3具有與樹脂層2接合的第一面3a、位於所述第一面3a的相反側的第二面3b、以及形成於第一面3a與第二面3b之間的端部（端面）3c。
玻璃片3的第一面3a藉由接著層4而與樹脂層2的第一面2a接合。玻璃片3的第二面3b構成玻璃樹脂積層體1的外表面。玻璃片3的端部3c由接著層4被覆。玻璃片3位於樹脂層2的第一面2a或第二面2b的範圍內。因此，玻璃片3的端部3c設置於樹脂層2的端部2c的更內側。此處，所謂樹脂層2的「內側」是指由樹脂層2的周緣部劃分的範圍的內側。本實施形態中，樹脂層2的周緣部由以正方形狀構成的樹脂層2的四邊構成。
作為玻璃片3，較佳為相較於樹脂層2而為薄板者，其厚度設為1000 μm以下，較佳為設為10 μm以上且700 μm以下，進而佳為設為50 μm以上且500 μm以下。
作為玻璃片3的材質，可使用矽酸鹽玻璃、二氧化矽玻璃，較佳為使用硼矽酸玻璃、鈉鈣玻璃、矽鋁酸鹽玻璃、化學強化玻璃，最佳為使用無鹼玻璃。藉由使用無鹼玻璃作為玻璃片3，可製成化學上穩定的玻璃。此處，所謂無鹼玻璃是實質上不含鹼成分（鹼金屬氧化物）的玻璃，具體而言是鹼成分的重量比為3000 ppm以下的玻璃。本發明中的鹼成分的重量比較佳為1000 ppm以下，更佳為500 ppm以下，最佳為300 ppm以下。
關於玻璃片3，為了即便將其厚度薄壁化至300 μm以下，亦具有不會明顯彎曲的適當的剛性，理想的是使其楊氏模量盡可能大。就所述觀點而言，玻璃片3的楊氏模量設為50 GPa以上，較佳為設為60 GPa以上，最佳為設為70 GPa以上。
玻璃片3可使用公知的浮式法、碾平法（roll-out method）、流孔下引法（slot down draw method）、再拉法等，但較佳為藉由溢流下拉法成形。溢流下拉法是如下方法：將熔融玻璃灌入至設置於剖面大致楔形的成形體的上部的溢流槽中，一面使自所述溢流槽向兩側溢出的熔融玻璃沿成形體的兩側的側壁部流下，一面在成形體的下端部融合一體化，將一片玻璃片連續成形。
可藉由溢流下拉法大量且廉價地製作厚度300 μm以下的玻璃片3。由此而製作的玻璃片3無須藉由研磨、研削、化學蝕刻等進行玻璃片3的厚度的調整。另外，溢流下拉法是在成形時玻璃片3的兩面與成形體不接觸的成形法，所得的玻璃片3的兩面（透光面）成為鍛造面，即便不研磨，亦可獲得高表面品質。藉此，可提高接著層4相對於玻璃片3的密接力，可更準確且精密地使玻璃片3與樹脂層2積層。
將接著層4的厚度設為1 μm以上且1000 μm以下。作為接著層4的材質，例如可較佳地使用乙烯乙酸乙烯酯共聚樹脂（Ethylene Vinyl Acetate，EVA）、聚乙烯丁縮醛樹脂（Polyvinyl Butyral，PVB）及UV硬化樹脂，但除此以外可使用丙烯酸系黏著劑、胺基甲酸酯系接著劑、矽酮系黏著劑、橡膠系黏著劑、紫外線硬化性丙烯酸系接著劑、紫外線硬化性環氧系接著劑、熱硬化性環氧系接著劑、熱硬化性三聚氰胺系接著劑、熱硬化性酚系接著劑等。
接著層4具有位於樹脂層2與功能性膜5之間的第一部分4a、以及位於玻璃片3與功能性膜5之間的第二部分4b。功能性膜5介隔存在於接著層4的內部、即第一部分4a與第二部分4b之間。所謂第一部分4a的端部與第二部分4b的端部融合而一體地構成。以下，將所述部分稱為「融合部」，以符號4c表示。
融合部4c以功能性膜5的端部5a不露出的方式被覆該功能性膜5。即，藉由功能性膜5配置於接著層4的第一部分4a與第二部分4b之間，其全部被接著層4被覆。另外，融合部4c於樹脂層2的端部2c與玻璃片3的端部3c之間露出。
如圖1及圖2所示，功能性膜5配置於玻璃片3的第一面3a及第二面3b的範圍內。藉此，功能性膜5的端部5a設置於玻璃片3的端部3c的更內側。再者，所謂玻璃片3的「內側」是藉由玻璃片3的周緣部劃分的範圍的內側。本實施形態中，玻璃片3的周緣部由以正方形狀構成的玻璃片3的四邊構成。
功能性膜的厚度較佳為0.012 mm以上且0.3 mm以下，更佳為0.038 mm以上且0.2 mm以下，進而佳為0.05 mm以上且0.1 mm以下。功能性膜的厚度較佳為比接著層4的厚度小。
功能性膜5較佳為樹脂。作為樹脂，可使用聚酯、烯烴、聚碳酸酯、丙烯酸等。於需要透明性或平滑性的情況下，較佳為功能性膜5使用聚對苯二甲酸乙二酯（Polyethylene Terephthalate，PET），於需要耐熱性或遮光性的情況下，較佳為功能性膜5使用聚丙烯或聚碳酸酯等。
功能性膜5亦可為由漿料等形成的紙。紙為了打印、圖案印刷而受到廣泛普及，適合於資訊揭示、圖案顯示的目的。另外，紙一般具有半透過性，因此可賦予調整透過玻璃樹脂積層體1的透過光的量的調光功能。靈活運用所述特性而將紙用作功能性膜5的玻璃樹脂積層體1可作為隔斷、階梯、陽台的壁面用面板等的建材而較佳地使用。
功能性膜5亦可為於紙原料中複合有聚酯等樹脂的複合片。於使用複合片的情況下，不易發生破損，於玻璃樹脂積層體1的製造時有不易產生發塵的優點。另外，亦具有功能性膜5與接著層4的接著性提高的優點。
功能性膜5亦可為於樹脂片等基材上印刷花紋等而成者。該情況下，即便不使用紙，亦可藉由印刷來再現紙質，或者亦可賦予利用紙而無法表現的設計性。再者，功能性膜5亦可使用不織布。
於對功能性膜5賦予設計性的情況下，亦可使用於樹脂片等基材上印刷木紋質感或金屬質感的花紋者。該情況下，可作為建材、家具、機器的蓋構件而較佳地使用。於印刷木紋質感或金屬質感的花紋的情況下，基材較佳為使用聚丙烯等具有不透過性的片。於使用印刷金屬質感的花紋的功能性膜5的情況下，可藉由玻璃片3的光澤而再現金屬光澤。
功能性膜5亦可代替設計性或除了設計性以外具有物理功能。例如，功能性膜5亦可具有紅外線遮蔽功能。該情況下，可作為遮熱窗或遮熱壁而較佳地使用。作為對功能性膜5賦予紅外線遮蔽功能的方法，可列舉將PET等樹脂片作為基材而於其表面形成吸收或反射紅外線的膜。
功能性膜5亦可具有電磁波遮蔽功能。該情況下，可作為遮蔽對人體有害的電磁波或該環境下不需要的電磁波的窗或壁而較佳地使用。具體而言，考慮到在醫療設施中的利用。作為對功能性膜5賦予電磁波遮蔽功能的方法，可列舉將PET等樹脂片作為基材而於其表面將氧化銦錫（Indium Tin Oxide，ITO）膜或銅膜等透明導電膜成膜。
功能性膜5亦可對可見光線具有半透過性。該情況下，可作為各種機器的蓋構件或隔斷而較佳地使用。作為對功能性膜5賦予半透過性的方法，如上所述，除了功能性膜5使用紙或類似於紙的東西以外，可列舉藉由噴砂處理或化學處理等對PET等樹脂片的表面進行粗面化。於進行所述處理的情況下，光的透過度可藉由變更表面粗糙度或者於單面或兩面實施粗面化處理來調整。
功能性膜5亦可具有可見光線的反射功能。該情況下，可作為安全且輕量的鏡子使用。作為賦予反射功能的方法，可列舉於樹脂片等基材的表面將反射膜成膜。反射膜的形成範圍可為整個面，亦可為一部分。另外，亦可對反射膜賦予半透過性而製成半透明鏡。
功能性膜5亦可具有觸控感測器、壓力感測器、光學感測器等的感測器圖案。感測器圖案藉由蒸鍍、濺鍍、其他成膜法而形成於功能性膜5的表面。
以下，參照圖3至圖6對製造所述構成的玻璃樹脂積層體1的方法進行說明。如圖3所示，準備構成玻璃樹脂積層體1的各要素、即樹脂層2（樹脂板）、玻璃片3、接著層4（接著片）及功能性膜5（準備步驟）。該情況下，接著層4包含相當於第一部分4a的接著片及相當於第二部分4b的接著片。第一部分4a的接著片的厚度設定為比相當於第二部分4b的接著片的厚度厚，但並不限定於此。
其次，如圖4所示，將各要素2～5重合。此時，功能性膜5成為由相當於接著層4的第一部分4a的接著片與相當於第二部分4b的接著片夾持的狀態。其後，於將各要素2～5重疊的狀態下，藉由高壓釜裝置將該些熱壓接而接合。接著層4（第一部分4a及第二部分4b）藉由加熱而軟化，其端部彼此融合（參照圖5）。藉此，於接著層4形成有融合部4c。融合部4c為如下狀態：被覆功能性膜5的端部5a且於樹脂層2的端部2c與玻璃片3的端部3c之間露出。
另外，於藉由加熱而接著層4軟化的狀態下，玻璃片3受到按壓而嵌入至接著層4的第一部分4a的一個面（參照圖5）。藉此，玻璃片3的端部3c經接著層4的融合部4c被覆。
其後，如圖6所示，藉由切割器6，融合部4c的一部分被切除。切割器6被預加熱至成為軟化的融合部4c的溫度以上的溫度。切割器6以融合部4c成為凸狀曲面（參照圖6的雙點劃線）的方式切除該融合部4c的一部分。藉由接著層4硬化，圖1所示的玻璃樹脂積層體1完成。
再者，於使用紫外線硬化性的接著劑（UV硬化樹脂）來製造玻璃樹脂積層體1的情況下，不使用高壓釜裝置，對在所述內部以不含功能性膜5的方式塗佈的接著劑照射紫外線。
根據以上說明的本實施形態的玻璃樹脂積層體1，藉由利用接著層4的融合部4c來被覆配置於樹脂層2與玻璃片3之間的功能性膜5的端部5a，可不使該端部5a露出而加以保護。藉此，可確實地防止玻璃樹脂積層體1中的功能性膜5的功能喪失或剝離。另外，藉由將功能性膜5的端部5a配置於玻璃片3的端部3c的更內側，可利用該玻璃片3而整體被覆功能性膜5而加以保護。
圖7表示玻璃樹脂積層體的第二實施形態。所述第一實施形態中，功能性膜5的一邊的長度尺寸D4設定為比玻璃片3的一邊的長度尺寸D2小，但本實施形態中，設定為比該長度尺寸D2大。另外，與第一實施形態同樣地，功能性膜5的一邊的長度尺寸D4設定為比樹脂層2的一邊的長度尺寸D1小。功能性膜5的端部5a與第一實施形態同樣地由樹脂層2的端部2c與玻璃片3的端部3c之間露出的接著層4的融合部4c被覆。
圖8表示玻璃樹脂積層體的第三實施形態。所述第一實施形態中，於接著層4的內部介隔存在有一層功能性膜5，但本實施形態中，於接著層4的內部介隔存在有二層功能性膜5A、功能性膜5B。功能性膜5A、功能性膜5B包含位於樹脂層2側的第一功能性膜5A、以及位於玻璃片3側的第二功能性膜5B。將第一功能性膜5A與第二功能性膜5B設為相同形狀，但亦可具有不同的尺寸。第一功能性膜5A及第二功能性膜5B具有各種不同的功能。
接著層4包含將樹脂層2與第一功能性膜5A接合的第一部分4a、將玻璃片3與第二功能性膜5B接合的第二部分4b、以及將第一功能性膜5A與第二功能性膜5B接合的第三部分4d。接著層4具有將第一部分4a的端部、第二部分4b的端部、以及第三部分4d的端部融合而成的融合部4c。第一功能性膜5A的端部5a及第二功能性膜5B的端部5a由所述融合部4c被覆。
圖9表示玻璃樹脂積層體的第四實施形態。所述第一實施形態中，於樹脂層2的第一面2a積層有一片玻璃片3，但本實施形態的玻璃樹脂積層體1於樹脂層2的第一面2a及第二面2b的兩面積層有兩片玻璃片3A、玻璃片3B。即，玻璃片3A、玻璃片3B包含積層於樹脂層2的第一面2a的第一玻璃片3A、以及積層於第二面2b的第二玻璃片。第一玻璃片3A及第二玻璃片3B可使用同種材質者，亦可使用不同材質者。第一玻璃片3A及第二玻璃片3B亦可根據所述用途而具有不同的厚度。
接著層4A、接著層4B包含將第一玻璃片3A與樹脂層2的第一面2a接合的第一接著層4A、以及將第二玻璃片3B與第二面2b接合的第二接著層4B。各接著層4A、接著層4B與第一實施形態同樣地具有第一部分4a、第二部分4b及融合部4c。
功能性膜5A、功能性膜5B包含介隔存在於第一接著層4A的內部的第一功能性膜5A、以及介隔存在於第二接著層4B的內部的第二功能性膜5B。各功能性膜5A、功能性膜5B的端部5a由對應的各接著層4A、接著層4B的融合部4c被覆。
再者，本發明並不限定於所述實施形態的構成，亦並不限定於所述作用效果。本發明可於不脫離本發明的主旨的範圍內進行各種變更。
所述實施形態中，例示了正方形狀的玻璃樹脂積層體1，但並不限定於此。玻璃樹脂積層體1根據其用途可以圓形、長方形、多邊形、異形形狀、其他各種形狀構成。
1‧‧‧玻璃樹脂積層體
2‧‧‧樹脂層
2a‧‧‧第一面
2b‧‧‧第二面
2c‧‧‧樹脂層的端部
3‧‧‧玻璃片
3A‧‧‧第一玻璃片
3B‧‧‧第二玻璃片
3a‧‧‧第一面
3b‧‧‧第二面
3c‧‧‧玻璃片的端部
4‧‧‧接著層
4A‧‧‧第一接著層
4B‧‧‧第二接著層
4a‧‧‧第一部分
4b‧‧‧第二部分
4c‧‧‧融合部
4d‧‧‧第三部分
5‧‧‧功能性膜
5A‧‧‧第一功能性膜
5B‧‧‧第二功能性膜
5a‧‧‧功能性膜的端部
6‧‧‧切割器
101‧‧‧玻璃樹脂積層體
102‧‧‧樹脂層
103‧‧‧玻璃片
104‧‧‧接著層
104a‧‧‧第一部分
104b‧‧‧第二部分
105‧‧‧中間片（功能性膜）
105a‧‧‧端面
D1、D2、D3、D4‧‧‧長度尺寸
W1、W2‧‧‧間隔
圖1是第一實施形態的玻璃樹脂積層體的剖面圖。 圖2是玻璃樹脂積層體的平面圖。 圖3是表示玻璃樹脂積層體的製造方法的一步驟的側視圖。 圖4是表示玻璃樹脂積層體的製造方法的一步驟的側視圖。 圖5是表示玻璃樹脂積層體的製造方法的一步驟的剖面圖。 圖6是表示玻璃樹脂積層體的製造方法的一步驟的剖面圖。 圖7是第二實施形態的玻璃樹脂積層體的剖面圖。 圖8是第三實施形態的玻璃樹脂積層體的剖面圖。 圖9是第四實施形態的玻璃樹脂積層體的剖面圖。 圖10是表示先前的玻璃樹脂積層體的剖面圖。

Claims (6)

  1. 一種玻璃樹脂積層體，其包括：樹脂層、玻璃片、將所述玻璃片與所述樹脂層接合的接著層、以及介隔存在於所述接著層的內部的功能性膜，且所述玻璃樹脂積層體的特徵在於： 所述接著層包括位於所述樹脂層與所述功能性膜之間的第一部分、位於所述玻璃片與所述功能性膜之間的第二部分、以及將所述第一部分的端部與所述第二部分的端部融合而成的融合部。
  2. 如申請專利範圍第1項所述的玻璃樹脂積層體，其中所述功能性膜的面積設定為比所述玻璃片的面積小， 所述功能性膜的端部配置於所述玻璃片的端部的更內側。
  3. 如申請專利範圍第1項或第2項所述的玻璃樹脂積層體，其中所述玻璃片的面積設定為比所述樹脂層的面積小， 所述玻璃片的端部位於所述樹脂層的端部的更內側。
  4. 如申請專利範圍第3項所述的玻璃樹脂積層體，其中所述融合部於所述樹脂層的端部與所述玻璃片的端部之間露出。
  5. 如申請專利範圍第1項至第4項中任一項所述的玻璃樹脂積層體，其中所述樹脂層包含第一面與第二面， 所述玻璃片包含積層於所述第一面的第一玻璃片、以及積層於所述第二面的第二玻璃片， 所述接著層包含將所述第一玻璃片與所述第一面接合的第一接著層、以及將所述第二玻璃片與所述第二面接合的第二接著層， 所述功能性膜介隔存在於所述第一接著層與所述第二接著層的至少一者的內部。
  6. 如申請專利範圍第5項所述的玻璃樹脂積層體，其中所述功能性膜包含介隔存在於所述第一接著層的內部的第一功能性膜、以及介隔存在於所述第二接著層的內部的第二功能性膜。
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