US20200130327A1 - Glass resin laminate - Google Patents

Glass resin laminate Download PDF

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Publication number
US20200130327A1
US20200130327A1 US16/495,932 US201816495932A US2020130327A1 US 20200130327 A1 US20200130327 A1 US 20200130327A1 US 201816495932 A US201816495932 A US 201816495932A US 2020130327 A1 US2020130327 A1 US 2020130327A1
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US
United States
Prior art keywords
glass
glass sheet
functional film
adhesive layer
resin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US16/495,932
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English (en)
Inventor
Takehiko Isomoto
Yasuhiko NOZAKI
Yoshio Tanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Electric Glass Co Ltd
Original Assignee
Nippon Electric Glass Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Electric Glass Co Ltd filed Critical Nippon Electric Glass Co Ltd
Assigned to NIPPON ELECTRIC GLASS CO., LTD. reassignment NIPPON ELECTRIC GLASS CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ISOMOTO, TAKEHIKO, NOZAKI, YASUHIKO, TANAKA, YOSHIO
Publication of US20200130327A1 publication Critical patent/US20200130327A1/en
Abandoned legal-status Critical Current

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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/414—Translucent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/51—Elastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/538—Roughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/71—Resistive to light or to UV
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/75—Printability
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
    • B32B2315/08—Glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2419/00—Buildings or parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2479/00—Furniture
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2535/00—Medical equipment, e.g. bandage, prostheses or catheter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2571/00—Protective equipment

Definitions

  • the present invention relates to a glass resin laminate obtained by laminating a glass sheet and a resin layer.
  • glass is excellent in weather resistance, chemical resistance, and scratch resistance, but by contrast, has a drawback in that the glass is liable to break owing to physical impact or thermal impact.
  • a glass resin laminate obtained by bonding a resin layer to one surface, or each of both surfaces, of a glass sheet has been proposed.
  • a resin is inferior in weather resistance, chemical resistance, and scratch resistance to the glass, but by contrast, has an advantage in that the resin has a specific gravity smaller than that of the glass and is strong against the physical impact. Accordingly, in the glass resin laminate, respective demerits in the glass sheet and the resin layer can be compensated with their respective merits.
  • the laminate can be significantly reduced in weight as compared to a glass sheet having the same thickness.
  • Patent Literature 1 there is a disclosure of a glass resin laminate obtained by: laminating glass sheets on both surfaces of a resin layer via adhesive layers to integrate the layer and the sheets; and arranging an intermediate sheet in the adhesive layer on at least one surface side of the resin layer.
  • the intermediate sheet in the glass resin laminate has various functions, such as an infrared ray-shielding function, an electromagnetic wave-shielding function, and a design property.
  • a specific configuration of the glass resin laminate is described with reference to FIG. 10 .
  • a glass resin laminate 101 illustrated in FIG. 10 includes a resin layer 102 , glass sheets 103 , adhesive layers 104 , and an intermediate sheet (functional film) 105 .
  • One of the adhesive layers 104 includes a first portion 104 a and a second portion 104 b formed in sheet shapes.
  • the intermediate sheet 105 is arranged between the first portion 104 a and the second portion 104 b .
  • the intermediate sheet 105 has the same dimensions as those of the resin layer 102 and the glass sheets 103 , and is brought into a state in which its end surface 105 a is exposed.
  • Patent Literature 1 JP 2016-117191 A
  • the intermediate sheet 105 When the end surface 105 a of the intermediate sheet 105 is exposed as described above, the intermediate sheet 105 may be affected by moisture in air, or the end surface 105 a may be damaged to cause the functional loss of the intermediate sheet 105 or the peeling of the intermediate sheet 105 starting from the end surface 105 a.
  • the present invention has been made in view of the above-mentioned circumstances, and a technical object of the present invention is to prevent the functional loss and peeling of a functional film in a glass resin laminate.
  • a glass resin laminate comprising: a resin layer; a glass sheet; an adhesive layer configured to bond the glass sheet and the resin layer; and a functional film interposed in the adhesive layer, wherein the adhesive layer comprises a first portion positioned between the resin layer and the functional film, a second portion positioned between the glass sheet and the functional film, and a fused portion obtained by fusing an end portion of the first portion and an end portion of the second portion.
  • the end portion of the functional film is covered with the fused portion of the first portion and the second portion in the adhesive layer, and hence the end portion of the functional film can be formed so as to be prevented from being exposed in the end portion of the glass resin laminate. Therefore, the end surface of the functional film is prevented from being brought into contact with outside air and being damaged by its contact with foreign matter. Thus, the functional loss and peeling of the functional film can be reliably prevented.
  • an area of the functional film be set to be smaller than an area of the glass sheet, and an end portion of the functional film be arranged inside with respect to an end portion of the glass sheet.
  • an area of the glass sheet be set to be smaller than an area of the resin layer, and an end portion of the glass sheet be arranged inside with respect to an end portion of the resin layer. With this, damage to the end portion of the glass sheet due to its contact with foreign matter can be prevented.
  • the fused portion be exposed between the end portion of the resin layer and the end portion of the glass sheet.
  • the end portion of the functional film but also the end portion of the glass sheet can be suitably protected with the fused portion.
  • the resin layer comprise a first surface and a second surface
  • the glass sheet comprise a first glass sheet laminated on the first surface and a second glass sheet laminated on the second surface
  • the adhesive layer comprise a first adhesive layer configured to bond the first glass sheet to the first surface and a second adhesive layer configured to bond the second glass sheet to the second surface
  • the functional film be interposed in at least one of the first adhesive layer or the second adhesive layer.
  • the functional film comprise a first functional film interposed in the first adhesive layer and a second functional film interposed in the second adhesive layer.
  • the laminate has multifunctionality.
  • the functional loss and peeling of the functional film in the glass resin laminate can be prevented.
  • FIG. 1 is a sectional view of a glass resin laminate according to a first embodiment.
  • FIG. 2 is a plan view of the glass resin laminate.
  • FIG. 3 is a side view for illustrating one step of a method of manufacturing the glass resin laminate.
  • FIG. 4 is a side view for illustrating one step of the method of manufacturing the glass resin laminate.
  • FIG. 5 is a sectional view for illustrating one step of the method of manufacturing the glass resin laminate.
  • FIG. 6 is a sectional view for illustrating one step of the method of manufacturing the glass resin laminate.
  • FIG. 7 is a sectional view of a glass resin laminate according to a second embodiment.
  • FIG. 8 is a sectional view of a glass resin laminate according to a third embodiment.
  • FIG. 9 is a sectional view of a glass resin laminate according to a fourth embodiment.
  • FIG. 10 is a sectional view for illustrating a related-art glass resin laminate.
  • FIG. 1 to FIG. 6 are illustrations of a glass resin laminate according to a first embodiment of the present invention and a manufacturing method therefor.
  • a glass resin laminate 1 comprises: a resin layer 2 ; a glass sheet 3 laminated on a first surface 2 a of the resin layer 2 ; an adhesive layer 4 configured to bond the glass sheet 3 to the resin layer 2 ; and a functional film 5 interposed in the adhesive layer 4 .
  • the glass resin laminate 1 is formed in a square shape, but is not limited to this shape.
  • the resin layer 2 , the glass sheet 3 , the adhesive layer 4 , and the functional film 5 are formed in square shapes in correspondence with the shape of the glass resin laminate 1 .
  • the area of the resin layer 2 is largest, the area of the glass sheet 3 is second largest, and the area of the functional film 5 is smallest.
  • the area of the adhesive layer 4 is set to be comparable to the area of the resin layer 2 .
  • a length dimension D 1 of one side of the resin layer 2 is longer than a length dimension D 2 of one side of the glass sheet 3 .
  • a length dimension D 3 of one side of the adhesive layer 4 is substantially equal to the length dimension D 1 of one side of the resin layer 2 .
  • a length dimension D 4 of one side of the functional film 5 is shorter than the length dimension D 2 of one side of the glass sheet 3 .
  • a difference (D 1 -D 2 ) between the length dimension D 1 of one side of the resin layer 2 and the length dimension D 2 of one side of the glass sheet 3 is preferably set to 4 mm or less.
  • An interval W 1 between one side of the resin layer 2 and the corresponding one side of the glass sheet 3 is set to preferably 2mm or less, more preferably 1 mm or more and 2mm or less.
  • a difference (D 2 -D 4 ) between the length dimension D 2 of one side of the glass sheet 3 and the length dimension D 4 of one side of the functional film 5 is preferably set to 4 mm or less.
  • An interval W 2 between one side of the glass sheet 3 and the corresponding one side of the functional film 5 is set to preferably 2mm or less, more preferably 1 mm or more and 2mm or less.
  • the resin layer 2 has the first surface 2 a , a second surface 2 b , and an end portion (end surface) 2 c between the first surface 2 a and the second surface 2 b .
  • the resin layer 2 is formed of a plate or film made of a resin in which the first surface 2 a and the second surface 2 b have substantially the same area.
  • the glass sheet 3 is laminated on the first surface 2 a of the resin layer 2 .
  • the thickness of the resin layer 2 is set to preferably 0.01 mm or more and 20 mm or less, more preferably 0.05 mm or more and 15 mm or less, most preferably 0.1 mm or more and 10 mm or less.
  • polycarbonate and a polymethyl methacrylate resin are preferred.
  • various resin materials such as polyethylene terephthalate, polyether ether ketone (PEEK), polyamide, polyvinyl chloride, polyethylene, polypropylene, and polyethylene naphthalate, maybe utilized.
  • the glass sheet 3 has a first surface 3 a bonded to the resin layer 2 , a second surface 3 b positioned opposite to the first surface 3 a , and an end portion (end surface) 3 c formed between the first surface 3 a and the second surface 3 b.
  • the first surface 3 a of the glass sheet 3 is bonded to the first surface 2 a of the resin layer 2 with the adhesive layer 4 .
  • the second surface 3 b of the glass sheet 3 forms the outer surface of the glass resin laminate 1 .
  • the end portion 3 c of the glass sheet 3 is covered with the adhesive layer 4 .
  • the glass sheet 3 is positioned in the range of the first surface 2 a or second surface 2 b of the resin layer 2 . Therefore, the end portion 3 c of the glass sheet 3 is arranged inside with respect to the end portion 2 c of the resin layer 2 .
  • the “inside” of the resin layer 2 refers to the inside of the range partitioned by the peripheral portion of the resin layer 2 .
  • the peripheral portion of the resin layer 2 comprises the four sides of the resin layer 2 formed in a square shape.
  • the glass sheet 3 be thin as compared to the resin layer 2 , and the thickness thereof is set to 1,000 ⁇ m or less, preferably 10 ⁇ m or more and 700 ⁇ m or less, more preferably 50 ⁇ m or more and 500 ⁇ m or less.
  • the glass sheet 3 As a material for the glass sheet 3 , there may be used silicate glass and silica glass, preferably borosilicate glass, soda lime glass, aluminosilicate glass, and chemical tempered glass, most preferably alkali-free glass.
  • the alkali-free glass refers to glass substantially free of an alkali component (alkali metal oxide), specifically glass having a weight ratio of the alkali component of 3,000 ppm or less.
  • the weight ratio of the alkali component is preferably 1,000 ppm or less, more preferably 500 ppm or less, most preferably 300 ppm or less.
  • the Young's modulus of the glass sheet 3 be as high as possible so that the glass sheet 3 has such moderate stiffness that the glass sheet 3 does not bend largely even when its thickness is reduced to 300 ⁇ m or less.
  • the Young's modulus of the glass sheet 3 is set to 50 GPa or more, preferably 60 GPa or more, most preferably 70 GPa or more.
  • a float method, a roll-out method, a slot down-draw method, a redraw method, and the like, which have hitherto been known, may be used for the glass sheet 3 , but the glass sheet 3 is preferably formed by an overflow down-draw method.
  • the overflow down-draw method is a method in which a molten glass is poured into an overflow groove provided on an upper portion of a forming body having a substantially wedge cross section, and the molten glasses overflowing from the overflow groove to both sides are caused to flow down along side wall portions of the forming body on both sides to be fused and integrated with each other at the lower end of the forming body, to thereby continuously form a sheet of glass.
  • a large number of glass sheets 3 having a thickness of 300 ⁇ m or less can be produced by the overflow down-draw method at a low cost.
  • the overflow down-draw method is a forming method in which both surfaces of the glass sheet 3 are not brought into contact with the forming body during forming.
  • both the surfaces (translucent surfaces) of the obtained glass sheet 3 serve as fire-polished surfaces, and high surface quality can be achieved without polishing.
  • the adhesive force of the adhesive layer 4 to the glass sheet 3 can be increased, and the glass sheet 3 and the resin layer 2 can be laminated more accurately and precisely.
  • the thickness of the adhesive layer 4 is set to 1 ⁇ m or more and 1,000 ⁇ m or less.
  • a material for the adhesive layer 4 there may be suitably used, for example, an ethylene-vinyl acetate copolymer resin (EVA), a polyvinyl butyral resin (PVB), and a UV-curing resin.
  • EVA ethylene-vinyl acetate copolymer resin
  • PVB polyvinyl butyral resin
  • UV-curing resin e.g., ethylene-vinyl acetate copolymer resin
  • an acrylic pressure-sensitive adhesive a urethane-based adhesive, a silicone-based pressure-sensitive adhesive, a rubber-based pressure-sensitive adhesive, a UV-curable acrylic adhesive, a UV-curable epoxy-based adhesive, a thermosetting epoxy-based adhesive, a thermosetting melamine-based adhesive, a thermosetting phenol-based adhesive, and the like may be used.
  • the adhesive layer 4 has a first portion 4 a positioned between the resin layer 2 and the functional film 5 , and a second portion 4 b positioned between the glass sheet 3 and the functional film 5 .
  • the functional film 5 is interposed in the adhesive layer 4 , that is, between the first portion 4 a and the second portion 4 b .
  • the end portion of the first portion 4 a and the end portion of the second portion 4 b are fused to be integrally formed.
  • the portion is hereinafter referred to as “fused portion”, and is represented by reference symbol 4 c.
  • the fused portion 4 c covers the functional film 5 so that an end portion 5 a of the functional film 5 may not be exposed. That is, the functional film 5 is arranged between the first portion 4 a and second portion 4 b of the adhesive layer 4 , and hence its entirety is covered with the adhesive layer 4 . In addition, the fused portion 4 c is exposed between the end portion 2 c of the resin layer 2 and the end portion 3 c of the glass sheet 3 .
  • the functional film 5 is positioned in the range of the first surface 3 a and second surface 3 b of the glass sheet 3 .
  • the end portion 5 a of the functional film 5 is arranged inside with respect to the end portion 3 c of the glass sheet 3 .
  • the “inside” of the glass sheet 3 refers to the inside of the range partitioned by the peripheral portion of the glass sheet 3 .
  • the peripheral portion of the glass sheet 3 comprises the four sides of the glass sheet 3 formed in a square shape.
  • the thickness of the functional film is preferably 0.012 mm or more and 0.3 mm or less, more preferably 0.038 mm or more and 0.2 mm or less, still more preferably 0.05 mm or more and 0.1 mm or less.
  • the thickness of the functional film is preferably smaller than the thickness of the adhesive layer 4 .
  • the functional film 5 is preferably formed of a resin.
  • a polyester, an olefin, a polycarbonate, an acryl, or the like is used as the resin.
  • a PET is preferably used as the functional film 5
  • a polypropylene, a polycarbonate, or the like is preferably used as the functional film 5 .
  • the functional film 5 may be paper formed of pulp or the like. Paper has been in widespread use for typing and design printing, and is hence suitable for the purpose of information display or design display. In addition, paper is generally semi-transmissive, and hence can impart a light-adjusting function of adjusting the quantity of transmitted light passing through the glass resin laminate 1 .
  • the glass resin laminate 1 using paper as the functional film 5 may be suitably used as a building material, such as a partition, a stair, or a panel for the wall surface of a veranda, through the exploitation of such characteristic.
  • the functional film 5 may be a composite sheet obtained by compositing a paper raw material with a resin, such as a polyester.
  • a resin such as a polyester.
  • the sheet hardly breaks and hardly causes dust generation at the time of the manufacture of the glass resin laminate 1 .
  • an adhesive property between the functional film 5 and the adhesive layer 4 is improved.
  • the functional film 5 may be a product obtained by printing a pattern or the like on a substrate, such as a resin sheet. In this case, paper quality can be reproduced by printing even without the use of paper, or a design property that cannot be represented with paper can be imparted to the film.
  • a nonwoven fabric may be used as the functional film 5 .
  • a product obtained by printing a woodgrain or metallic pattern on a substrate such as a resin sheet
  • the film may be suitably used as a building material, furniture, or a covering member for equipment.
  • a non-transmissive sheet such as a polypropylene
  • metallic gloss can be reproduced by the gloss of the glass sheet 3 .
  • the functional film 5 may have a physical function instead of the design property or in addition to the design property.
  • the functional film 5 may have, for example, an infrared ray-shielding function.
  • the film may be suitably used as a heat-shielding window or a heat-shielding wall.
  • a method of imparting the infrared ray-shielding function to the functional film 5 is, for example, the formation of a film configured to absorb or reflect an infrared ray on the surface of a resin sheet, such as a PET, serving as a substrate.
  • the functional film 5 may have an electromagnetic wave-shielding function.
  • the film may be suitably used as a window or wall configured to shield an electromagnetic wave harmful to a human body or an electromagnetic wave that is not required for the environment.
  • the film is considered to find use in medical facilities.
  • a method of imparting the electromagnetic wave-shielding function to the functional film 5 is, for example, the formation of a transparent conductive film, such as an ITO film or a copper film, on the surface of a resin sheet, such as a PET, serving as a substrate.
  • the functional film 5 may have semi-transmissivity to visible rays.
  • the film maybe suitably used as a covering member for various kinds of equipment or a partition.
  • a method of imparting the semi-transmissivity to the functional film 5 is, for example, the roughening of the surface of a resin sheet, such as a PET, by sandblasting treatment, chemical treatment, or the like in addition to the use of paper or a product similar to paper as the functional film 5 as described above.
  • the transmissivity of light maybe adjusted by changing the roughness of the surface of the sheet or by subjecting one surface, or both surfaces, thereof to the surface roughening treatment.
  • the functional film 5 may have a function of reflecting visible rays.
  • the film may be used as a safe and lightweight mirror.
  • a method of imparting the reflecting function to the film is, for example, the formation of a reflective film on the surface of a substrate, such as a resin sheet.
  • the formation range of the reflective film may be the entirety of the surface, or may be part of the surface.
  • a half mirror may be provided by imparting semi-transmissivity to the reflective film.
  • the functional film 5 may have a sensor pattern concerning a touch sensor, a pressure sensor, an optical sensor, or the like.
  • the sensor pattern is formed on the surface of the functional film 5 by deposition, sputtering, or any other film formation method.
  • the respective components forming the glass resin laminate 1 that is, the resin layer 2 (resin plate), the glass sheet 3 , the adhesive layer 4 (adhesive sheets), and the functional film 5 are prepared (preparing step).
  • the adhesive layer 4 comprises an adhesive sheet corresponding to the first portion 4 a and an adhesive sheet corresponding to the second portion 4 b .
  • the thickness of the adhesive sheet corresponding to the first portion 4 a is set to be larger than the thickness of the adhesive sheet corresponding to the second portion 4 b , but is not limited thereto.
  • the respective components 2 to 5 are superimposed.
  • the functional film 5 is brought into a state of being sandwiched between the adhesive sheet corresponding to the first portion 4 a and the adhesive sheet corresponding to the second portion 4 b in the adhesive layer 4 .
  • the components are subjected to thermal pressure bonding with an autoclave apparatus to be bonded to one another.
  • the adhesive layer 4 (the first portion 4 a and the second portion 4 b ) is softened by the heating, and hence its end portions are fused (see FIG. 5 ).
  • the fused portion 4 c is formed in the adhesive layer 4 .
  • the fused portion 4 c covers the end portion 5 a of the functional film 5 , and is brought into a state of being exposed between the end portion 2 c of the resin layer 2 and the end portion 3 c of the glass sheet 3 .
  • the glass sheet 3 is pressed to be embedded in one surface of the first portion 4 a of the adhesive layer 4 (see FIG. 5 ).
  • the end portion 3 c of the glass sheet 3 is covered with the fused portion 4 c of the adhesive layer 4 .
  • part of the fused portion 4 c is cut off with a cutter 6 .
  • the cutter 6 is heated in advance so that its temperature may be equal to or more than the temperature of the fused portion 4 c that has been softened.
  • Part of the fused portion 4 c is cut off with the cutter 6 so that the fused portion 4 c may be a convex curved surface (see a two-dot chain line in FIG. 6 ).
  • the glass resin laminate 1 illustrated in FIG. 1 is completed by the curing of the adhesive layer 4 .
  • the adhesive applied so as to comprise the functional film 5 in an inside thereof is irradiated with UV light without the use of any autoclave apparatus.
  • the end portion 5 a of the functional film 5 arranged between the resin layer 2 and the glass sheet 3 is covered with the fused portion 4 c of the adhesive layer 4 , and hence the end portion 5 a can be protected without being exposed.
  • the functional loss and peeling of the functional film 5 in the glass resin laminate 1 can be reliably prevented.
  • the end portion 5 a of the functional film 5 is arranged inside with respect to the end portion 3 c of the glass sheet 3 , and hence the functional film 5 can be entirely covered and protected with the glass sheet 3 .
  • FIG. 7 is an illustration of a glass resin laminate according to a second embodiment.
  • the length dimension D 4 of one side of the functional film 5 is set to be smaller than the length dimension D 2 of one side of the glass sheet 3 . In this embodiment, however, the length dimension D 4 is set to be larger than the length dimension D 2 .
  • the length dimension D 4 of one side of the functional film 5 is set to be smaller than the length dimension D 1 of one side of the resin layer 2 .
  • the end portion 5 a of the functional film 5 is covered with the fused portion 4 c of the adhesive layer 4 exposed between the end portion 2 c of the resin layer 2 and the end portion 3 c of the glass sheet 3 .
  • FIG. 8 is an illustration of a glass resin laminate according to a third embodiment.
  • the one functional film 5 is interposed in the adhesive layer 4 .
  • two functional films 5 A and 5 B are interposed in the adhesive layer 4 .
  • the functional films 5 A and 5 B comprise the first functional film 5 A positioned on the resin layer 2 side and the second functional film 5 B positioned on the glass sheet 3 side.
  • the first functional film 5 A and the second functional film 5 B are of the same shape herein, but may have different dimensions.
  • the first functional film 5 A and the second functional film 5 B have functions different from each other.
  • the adhesive layer 4 comprises: the first portion 4 a configured to bond the resin layer 2 and the first functional film 5 A; the second portion 4 b configured to bond the glass sheet 3 and the second functional film 5 B; and a third portion 4 d configured to bond the first functional film 5 A and the second functional film 5 B.
  • the adhesive layer 4 has the fused portion 4 c obtained by fusing the end portion of the first portion 4 a , the end portion of the second portion 4 b , and the end portion of the third portion 4 d .
  • the end portion 5 a of the first functional film 5 A and the end portion 5 a of the second functional film 5 B are covered with the fused portion 4 c.
  • FIG. 9 is an illustration of a glass resin laminate according to a fourth embodiment.
  • the one glass sheet 3 is laminated on the first surface 2 a of the resin layer 2 .
  • the glass resin laminate 1 according to this embodiment is obtained by laminating two glass sheets 3 A and 3 B on both the first surface 2 a and second surface 2 b of the resin layer 2 . That is, the glass sheets 3 A and 3 B comprise the first glass sheet 3 A laminated on the first surface 2 a of the resin layer 2 and the second glass sheet 3 B laminated on the second surface 2 b thereof. Materials of the same kind may be used in the first glass sheet 3 A and the second glass sheet 3 B, or materials of different kinds may be used therein.
  • the first glass sheet 3 A and the second glass sheet 3 B may have different thicknesses in accordance with their applications.
  • Adhesive layers 4 A and 4 B comprise: the first adhesive layer 4 A configured to bond the first glass sheet 3 A to the first surface 2 a of the resin layer 2 ; and the second adhesive layer 4 B configured to bond the second glass sheet 3 B to the second surface 2 b thereof.
  • each of the adhesive layers 4 A and 4 B has the first portion 4 a , the second portion 4 b , and the fused portion 4 c.
  • the functional films 5 A and 5 B comprise the first functional film 5 A interposed in the first adhesive layer 4 A and the second functional film 5 B interposed in the second adhesive layer 4 B.
  • the end portions 5 a of the respective functional films 5 A and 5 B are covered with the fused portions 4 c of the corresponding respective adhesive layers 4 A and 4 B.
  • the present invention is not limited to the configurations of the above-mentioned embodiments.
  • the action and effect of the present invention are not limited to those described above.
  • the present invention may be modified in various forms within the range not departing from the spirit of the present invention.
  • the glass resin laminate 1 of a square shape is given as an example. However, its shape is not limited thereto.
  • the glass resin laminate 1 may be formed in various shapes, such as a circular shape, a rectangle, a polygon, and a deformed shape, in accordance with its applications.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)
  • Joining Of Glass To Other Materials (AREA)
US16/495,932 2017-04-13 2018-03-22 Glass resin laminate Abandoned US20200130327A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2017079586A JP6774029B2 (ja) 2017-04-13 2017-04-13 ガラス樹脂積層体
JP2017-079586 2017-04-13
PCT/JP2018/011451 WO2018190098A1 (fr) 2017-04-13 2018-03-22 Stratifié verre-résine

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
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US11813821B2 (en) * 2017-11-30 2023-11-14 Agp America S.A. Invisible edge solid substrate compensation layer for automotive glazing

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Publication number Priority date Publication date Assignee Title
US11813821B2 (en) * 2017-11-30 2023-11-14 Agp America S.A. Invisible edge solid substrate compensation layer for automotive glazing
WO2022198030A1 (fr) * 2021-03-18 2022-09-22 Corning Incorporated Article stratifié en verre et composition adhésive pour celui-ci

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CN110520294B (zh) 2022-08-02
TWI734906B (zh) 2021-08-01
WO2018190098A1 (fr) 2018-10-18
US20220176680A1 (en) 2022-06-09
JP6774029B2 (ja) 2020-10-21

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