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WO2012091004A1 - Feuille de protection destinée à la surface arrière de modules de cellule solaire, procédé de production de feuille de protection et module de cellule solaire - Google Patents

Feuille de protection destinée à la surface arrière de modules de cellule solaire, procédé de production de feuille de protection et module de cellule solaire Download PDF

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Publication number
WO2012091004A1
WO2012091004A1 PCT/JP2011/080197 JP2011080197W WO2012091004A1 WO 2012091004 A1 WO2012091004 A1 WO 2012091004A1 JP 2011080197 W JP2011080197 W JP 2011080197W WO 2012091004 A1 WO2012091004 A1 WO 2012091004A1
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WO
WIPO (PCT)
Prior art keywords
back surface
solar cell
protective sheet
sheet
surface protection
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.)
Ceased
Application number
PCT/JP2011/080197
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English (en)
Japanese (ja)
Inventor
野口　克弘
直也 今井
美規 粟村
祐輔 笠木
理嗣 山地
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.)
Okura Industrial Co Ltd
Original Assignee
Okura Industrial Co Ltd
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Filing date
Publication date
Application filed by Okura Industrial Co Ltd filed Critical Okura Industrial Co Ltd
Publication of WO2012091004A1 publication Critical patent/WO2012091004A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
    • H10F19/80—Encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells
    • H10F19/85—Protective back sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Definitions

  • the present invention relates to a novel back surface protection sheet for solar cell modules, a method for producing the back surface protection sheet, and a solar cell module including the back surface protection sheet.
  • solar cell power generation systems equipped with solar cell modules have become widespread as one of power generation means using clean energy due to increasing awareness of environmental issues.
  • a large number of plate-like solar cell elements are arranged in the solar cell module. These elements are sandwiched by an ethylene-vinyl acetate copolymer called a sealing material, and the front plate such as glass is opposite to the side where the sunlight hits.
  • a back surface protection sheet for solar cell modules (hereinafter abbreviated as back surface protection sheet) is superposed in this order. And it is integrally molded by a vacuum heating lamination method or the like.
  • This back surface protection sheet protects the power generation element and the sealing material, and protects the power generation element from external mechanical shock and pressure, preventing moisture penetration and preventing deterioration of the power generation element. Is required. Therefore, the back protection sheet has high electrical insulation, low thermal shrinkage, durability that prevents the back protection sheet itself from delaminating even when left in high temperature and high humidity, and peeling at the interface with the sealing material Characteristics such as not being required are required.
  • the back surface protection sheet is required to have high electrical insulation, and for this purpose, an appropriate thickness is required.
  • the back protection sheet is thick, and the back protection sheet, base film and metal or metal oxide film, which are obtained by bonding a polyvinyl fluoride film and a polyethylene terephthalate film with an adhesive.
  • a back surface protection sheet in which a barrier film provided with a vapor deposition layer such as an object is bonded with an adhesive has been proposed. For example, in Japanese Patent Application Laid-Open No.
  • Patent Document 1 an aluminum vapor deposition layer is provided on both surfaces of a polyethylene terephthalate film as a base film to form a barrier sheet, and two barrier sheets are laminated with a polyurethane adhesive. Although a back surface protective sheet is disclosed, the adhesive layer may be peeled off when exposed to a high temperature and high humidity for a long period of time.
  • Patent Document 2 discloses a back pressure protection sheet in which at least two layers of substrates are bonded using a specific polyurethane-based adhesive. It is described that a laminate strength of 1 N / 15 mm or more is maintained without floating between substrates even after exposure to at least 105 ° C. for 168 hours using a steam acceleration evaluation apparatus. However, as the exposure period becomes longer, the laminate strength decreases, and there is a risk of delamination if the back protective sheet adhered with this adhesive is used for a long period of time. That is, the present situation is that the back surface protection sheet bonded with an adhesive has a possibility that the peel strength is greatly lowered and peeled when exposed to a high temperature and high humidity for a long time.
  • polybutylene terephthalate can be used for practical use without stretching, but when trying to obtain a thick film of 200 ⁇ m or more, when contacting the molten resin extruded from the flat die to the cooling roll, It is difficult to make uniform contact over the entire width at the same time, and when the portion that has previously contacted the cooling roll is cooled and crystallized, floating occurs in the adjacent portion, resulting in a partially different cooling rate, resulting in a smooth film There was a problem that could not be obtained.
  • the present invention has been made in view of such problems, and there is no risk of delamination even when exposed to a high temperature and high humidity for a long period of time.
  • the solar cell module has high electrical insulation, low thermal shrinkage, and low water vapor permeability. It is an object of the present invention to provide a backside protective sheet for use, a manufacturing method thereof, and a solar cell module using the same.
  • the present inventors have found that a novel back surface protection sheet for solar cell modules having excellent characteristics can be obtained by forming polybutylene terephthalate into a sheet by a specific extrusion molding method, and the present invention has been completed. It was.
  • It is made of polybutylene terephthalate resin, is unstretched, has a thickness of 200 ⁇ m to 500 ⁇ m, and has a heat shrinkage rate at 150 ° C. of 1.5% or less in both the take-up direction and the direction perpendicular thereto.
  • the back surface protection sheet for solar cell modules is provided.
  • the present invention also comprises extruding a polybutylene terephthalate resin from a flat die, and passing the extruded sheet through a nip between a rubber roll and a metal roll having a surface set temperature in the range of 25 ° C to 90 ° C.
  • the manufacturing method of the back surface protection sheet for solar cell modules is provided.
  • the present invention further provides a solar cell module, wherein the power generating element is protected by the above-described back surface protective sheet for solar cell module.
  • the back surface protective sheet of the present invention is a thick sheet excellent in appearance, and as a result, there is no risk of delamination even when exposed to high temperature and high humidity for a long period of time, high electrical insulation, heat shrinkage rate, water vapor It has an effect that the permeability is small, and the melt adhesiveness with the sealing material is good and it does not peel at the interface. Therefore, by using the back surface protective sheet of the present invention, it has become possible to provide a solar cell module that can maintain its characteristics over a long period of time without causing deterioration of the power generation element.
  • FIG. 1 is a schematic side view showing a method for producing a back surface protective sheet of the present invention.
  • FIG. 2 is a schematic cross-sectional view showing one embodiment of the solar cell module of the present invention.
  • FIG. 3 is a schematic voltage application graph for explaining a method of measuring the maximum allowable system voltage.
  • the back protective sheet of the present invention provides a sheet having a thickness of 200 ⁇ m or more without being bonded with an adhesive, has heat resistance, and is heat-fusible with an ethylene-vinyl acetate copolymer as a sealing material.
  • a polybutylene terephthalate-based resin having a good viscosity is used.
  • the polybutylene terephthalate resin is preferably a homopolymer of polybutylene terephthalate or a copolymer thereof (hereinafter, both are abbreviated as PBT).
  • PBT polybutylene terephthalate resin
  • a mixture of PBT and a small amount of a thermoplastic resin such as polycarbonate or polyethylene terephthalate can also be used as the polybutylene terephthalate resin.
  • PBT examples include polybutylene terephthalate homopolymer obtained by polycondensation of 1,4-butanediol and terephthalic acid, polycondensation of 1,4-butanediol and lower alkyl ester of terephthalic acid, Polybutylene terephthalate copolymer in which part of butylene glycol is replaced with ethylene glycol, propylene glycol, or cyclohexanedimethanol, or part of terephthalic acid is replaced with isophthalic acid, 2,6-naphthalenedicarboxylic acid, or adipic acid PBT obtained by any method can be used.
  • the intrinsic viscosity of the PBT used in the present invention is preferably 0.6 to 1.6, and more preferably 1.0 to 1.5.
  • the melt viscosity of PBT is small. Therefore, when trying to obtain a back protective sheet having a thickness of 200 ⁇ m or more, the molten resin extruded from the flat die drips by its own weight, and the thickness However, it is not preferable because a uniform back surface protective sheet cannot be obtained, and when it exceeds 1.6, the fluidity of the melted PBT in the extruder or in the flat die deteriorates.
  • the solar cell module is required to stably convert solar energy into electric energy over a long period of time, and the back surface protection sheet of the present invention is required not to significantly deteriorate its characteristics over a long period of time.
  • PBT contains an ester bond, which causes hydrolysis due to moisture, resulting in a decrease in molecular weight. If used over a long period of time, the physical properties may decrease. Therefore, the PBT used in the present invention preferably has a small number of terminal carboxyl groups that hardly undergo hydrolysis under high temperature and high humidity. Specifically, the carboxyl group equivalent is 40 meq / kg or less, more preferably PBT of 30 meq / kg or less is preferably used.
  • the back surface protection sheet of the present invention includes carbodiimide for suppressing hydrolysis to the PBT, an antioxidant such as phenol, phosphorus, and sulfur to prevent thermal degradation during melt processing into a sheet, sun
  • an antioxidant such as phenol, phosphorus, and sulfur to prevent thermal degradation during melt processing into a sheet
  • sun One or more additives such as an ultraviolet absorber, a light stabilizer, an antiblocking agent, a colorant, and a flame retardant for preventing deterioration due to ultraviolet rays contained in light can be added as necessary.
  • the back surface protection sheet of the present invention In order to obtain the back surface protection sheet of the present invention, as shown in FIG. 1, PBT is supplied to an extruder equipped with a flat die 1, molten PBT is discharged from the flat die 1, and the discharged PBT is discharged into a metal roll 2. By taking up with a nip roll composed of the rubber roll 3, it is possible to obtain the back protective sheet 4 having a good appearance and thickness. At that time, the surface setting temperature of the metal roll is set in the range of 25 ° C. to 90 ° C. In addition, in order to obtain the back surface protection sheet which has the multilayer structure mentioned later, it can manufacture by co-extrusion from the flat die connected with the some extruder. Co-extrusion can be performed by, for example, a known T-die method.
  • the back surface protection sheet of the present invention is a nip roll molding of a molten PBT extruded from a flat die with a metal roll and a rubber roll having a surface set temperature in the range of 25 ° C. to 90 ° C.
  • the surface setting temperature of the metal roll is lower than 25 ° C.
  • the resin melted on the surface of the metal roll is rapidly cooled when trying to obtain a back surface protection sheet having a thickness of 200 ⁇ m or more. Is cooled and crystallized, and floating occurs in the adjacent portion, and further, a phenomenon that PBT is taken to the rubber roll occurs, and a smooth back surface protection sheet cannot be obtained.
  • the surface set temperature of the metal roll exceeds 90 ° C.
  • the obtained back surface protection sheet is difficult to release from the surface of the metal roll, and horizontal stripes perpendicular to the take-off direction (MD direction) called peeling marks occur. Not only that, but also the heat shrinkage rate is increased, which is not preferable.
  • the surface setting temperature of the metal roll is in the range of 25 ° C. to 90 ° C.
  • the back surface protection sheet has a small heat shrinkage rate, and when it is on the high temperature side, a back surface protection sheet having a low water vapor permeability can be obtained. Accordingly, the surface set temperature of the metal roll may be appropriately selected in consideration of these characteristics.
  • a surface setting temperature of the metal roll is obtained when trying to obtain a back protective sheet having a thickness of 200 ⁇ m or more. Even when the temperature is in the range of 25 ° C. to 90 ° C., the contact with the metal roll is uneven, the cooling rate is different, and a smooth back surface protective sheet cannot be obtained. Also, even when the molten PBT extruded from the flat die is forcibly brought into contact with the metal roll using means such as an air chamber or electrostatic pinning, the contact with the metal roll is not uniform and the back surface is smooth. A protective sheet cannot be obtained.
  • the sheet obtained by the present invention uses PBT, so that the crystallization speed is high, and it has characteristics and appearance that can be put to practical use without being subjected to stretching treatment. Therefore, it also has an effect that secondary processing of stretching after film formation is unnecessary.
  • any of a chrome plating roll, a ceramic sprayed roll, and the like may be used.
  • a metal roll subjected to a plating treatment or a thermal spraying treatment after imparting a fine uneven shape to the surface by means of sandblasting or the like is suitable. Used for.
  • a metal roll having a double tube structure for circulating a heat medium such as water or oil whose temperature is adjusted.
  • the rubber used for the rubber roll synthetic rubber such as silicone rubber, fluorine rubber, butadiene rubber and isoprene rubber can be used, and silicone rubber is preferable from the viewpoint of heat resistance, releasability and cost. Moreover, since the temperature of a rubber roll surface will rise if a back surface protection sheet is continuously produced, it is preferable to adjust the temperature of a rubber roll also by circulating water and oil into the rubber roll.
  • the back surface protective sheet of the present invention can have a multilayer structure composed of a plurality of polybutylene terephthalate resin layers.
  • a multilayer structure having a thickness of 200 ⁇ m or more is formed without using an adhesive, there is no risk of delamination even when exposed to high temperatures and high humidity for a long period of time, high electrical insulation, and thermal contraction rate Is small and can be used as it is as a back protective sheet without stretching.
  • the thickness of the back protective sheet of the present invention is 200 ⁇ m to 500 ⁇ m.
  • the electrical insulation is low (the maximum allowable system voltage is less than 1000 V), and the water vapor permeability is high, so that moisture easily penetrates into the solar cell module.
  • the thickness of the back surface protection sheet is thin and the stiffness is weak, it is difficult to handle the back surface protection sheet.
  • the thickness of the back protective sheet is preferably 240 ⁇ m to 450 ⁇ m.
  • the thermal shrinkage rate at 150 ° C. of the back surface protective sheet is 1.5% or less in both the take-up direction (MD direction and synonymous with the extrusion direction) and the direction orthogonal thereto (ie, TD direction), and further 1.0%. The following is preferred.
  • the thermal shrinkage rate at 150 ° C exceeds 1.5%, when the back surface protection sheet shrinks after using the solar cell module for a long time, internal stress is generated at the interface between the back surface protection sheet and the sealing material, and sealing As a result, the adhesive strength with the material is reduced, and not only the back surface protection sheet is peeled off from the sealing material, but also the solar cell module is warped, and the wiring connecting the power generating elements is disconnected.
  • the back surface protective sheet of the present invention can be colored in any color by blending a colorant.
  • coloring the back surface protective sheet it is preferable to color white or black.
  • white 3 to 40 parts by weight of a white pigment such as titanium oxide is colored black to 100 parts by weight of PBT.
  • a black pigment such as carbon black
  • a back surface protection sheet is colored white, while being able to improve the conversion efficiency of the solar cell module from a solar energy to an electrical energy, the effect that the weather resistance of a back surface protection sheet improves is acquired.
  • a back protective sheet colored in black in design is preferred.
  • the back surface protective sheet of the present invention can be composed of a plurality of polybutylene terephthalate resin layers, and at least two of the plurality of layers can have a multilayer structure having different colors.
  • a polybutylene terephthalate resin is used for all layers and a film is formed by a coextrusion method. Thereby, it can be set as the back surface protection sheet which does not produce delamination.
  • transparent layer / colored layer Specifically, transparent layer / colored layer, colored layer / colored layer, colored layer / transparent layer / colored layer, transparent layer / colored layer / transparent layer, high-concentration colored layer / low-concentration colored layer / high-concentration colored layer
  • the transparent layer refers to a layer that does not contain a pigment for coloring.
  • the colored layer is preferably colored black, and in the case where importance is attached to the power generation efficiency of the solar cell module, the colored layer is preferably colored white.
  • the constitution of transparent layer / colored layer / transparent layer is preferred, and when there is a risk of yellowing the back protective sheet due to long-term use, the colored layer / transparent layer / colored layer
  • the configuration is preferable.
  • the front plate side layer is colored white and the opposite side layer is black
  • a back surface protective sheet having a multilayer structure colored in the above is particularly preferably used. The amount of white pigment and black pigment used in this case is the same as described above.
  • the back surface protective sheet of the present invention is a multilayer in which a specific layer is colored, since PBT is used for all layers, the linear expansion coefficient and thermal contraction rate of each layer are almost the same, so the internal stress between layers is Almost no generation occurs, the interlaminar adhesion is extremely good, and there is an effect that delamination does not occur even when exposed to a high temperature and high humidity for a long time.
  • FIG. 2 shows an example of a solar cell module using the back surface protective sheet obtained in this way.
  • the solar cell module 10 illustrated in FIG. 2 includes a front plate 11, a sealing material 13, a power generation element 12, a sealing material 13, and a back surface protection sheet 14 of the present invention, and has a structure integrated in this order.
  • Intrinsic Viscosity Intrinsic Viscosity was determined by dissolving PBT in a phenol-tetrachloroethane mixed solvent (1: 1 by weight) and measuring it at 25 ° C. using an Ubbelohde viscometer.
  • Thermal contraction rate Marks are placed at intervals of about 100 mm at the center of a sheet 200 mm long and 200 mm wide, then the test piece is placed in a hot air dryer maintained at 150 ° C., heated for 30 minutes and then removed. Then, after leaving at room temperature for 30 minutes, the distance between the gauge points was measured, and the thermal shrinkage rate in the take-up direction (MD) of the back surface protection sheet and the direction perpendicular to it (TD) was calculated by the following formula.
  • Thermal contraction rate (%) [(interval between gauge points before heating ⁇ interval between gauge points after heating) / interval between gauge points before heating] ⁇ 100
  • PBT-A polybutylene terephthalate homopolymer
  • Example 2 A three-layer back protective sheet was obtained in the same manner as in Example 1 except that the thickness was 300 ⁇ m.
  • Table 1 shows the appearance, maximum allowable system voltage, water vapor transmission rate, and heat shrinkage rate of the obtained back surface protection sheet.
  • Example 6 A three-layer back protective sheet was obtained in the same manner as in Example 1 except that a mixture of 0.3 parts by weight of carbon black with 100 parts by weight of PBT-A was used as the inner layer.
  • Table 1 shows the appearance, maximum allowable system voltage, water vapor transmission rate, and heat shrinkage rate of the obtained back surface protection sheet.
  • Example 1 A three-layer back protective sheet was obtained in the same manner as in Example 4 except that the total thickness was 188 ⁇ m. Table 1 shows the appearance, maximum allowable system voltage, water vapor transmission rate, and heat shrinkage rate of the obtained back surface protection sheet.
  • Comparative Example 3 A three-layer back protective sheet having a thickness of 250 ⁇ m was obtained in the same manner as in Comparative Example 1 except that the surface setting temperature of the metal roll was 20 ° C. The resulting back surface protection sheet was rapidly cooled during nip roll forming, so that the sheet edge floated, the releasability from the rubber roll was poor, and it was partially taken up by the rubber roll. Met.
  • Comparative Example 4 A single-layer back surface protective sheet having a thickness of 250 ⁇ m was obtained in the same manner as in Comparative Example 2 except that the surface setting temperature of the metal roll was set to 100 ° C. When the obtained back surface protective sheet was peeled off from the metal roll, the peelability from the metal roll was poor, and it was taken off by the metal roll and had peeling lines, the entire surface was not smooth, and the appearance was poor.
  • the back surface protective sheets of Examples 1 to 6 formed by nip roll molding using a metal roll whose surface set temperature was controlled to 25 ° C. to 90 ° C. had good appearance.
  • the surface set temperature is as low as 20 ° C
  • the end portion of the obtained back surface protection sheet is wavy, a smooth back surface protection sheet cannot be obtained, and when the surface set temperature of the metal roll is too high as 100 ° C
  • the peelability from the metal roll was poor, and stripping lines were generated, resulting in poor appearance.
  • the maximum allowable system voltage of the backside protection sheets obtained in Examples 1 to 6 having a thickness of 200 ⁇ m or more was 1000 V or more, and the electrical insulation was good, but the thickness was 188 ⁇ m.
  • the maximum permissible system voltage of the backside protective sheet obtained in 1 and 2 was less than 1000 V and the electrical insulation was poor, and did not reach the value required for the backside protective sheet.
  • the back surface protection sheets obtained in Examples 1 to 6 were formed without stretching PBT, their thermal shrinkage rates were all less than 1%, and long-term when a solar cell module was obtained. Even when exposed to the outdoors, there was no delamination of the back protective sheet itself, the internal stress was suppressed, and there was little risk of peeling from the sealing material.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Photovoltaic Devices (AREA)

Abstract

La présente invention a pour objectif l'obtention : d'une feuille de protection destinée à la surface arrière de modules de cellule solaire qui n'est pas sujette au délaminage même si elle est exposée à des conditions de température élevée et d'humidité élevée pendant une période prolongée et qui présente une résistance électrique élevée, une faible contraction par refroidissement et une faible perméabilité à la vapeur d'eau; d'un procédé de production de feuille de protection; et d'un module de cellule solaire. La présente invention a trait à une feuille de protection destinée à la surface arrière de modules de cellule solaire, laquelle feuille de protection comprend une résine de poly téréphtalate de butylène, est dotée d'une épaisseur de 200 à 500 μm lorsqu'elle n'est pas étirée et présente une contraction par refroidissement inférieure ou égale à 1,5 % dans la direction de décollage et la direction perpendiculaire à celle-ci à une température de 150 °C. La feuille de protection selon la présente invention est fabriquée en extrudant une résine de poly téréphtalate de butylène au moyen d'une filière plate et en passant la feuille extrudée à travers le pincement entre un rouleau en caoutchouc et un rouleau métallique ayant une température de surface prédéfinie comprise dans la plage allant de 25 à 90 °C.
PCT/JP2011/080197 2010-12-28 2011-12-27 Feuille de protection destinée à la surface arrière de modules de cellule solaire, procédé de production de feuille de protection et module de cellule solaire Ceased WO2012091004A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010-291860 2010-12-28
JP2010291860 2010-12-28

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WO2012091004A1 true WO2012091004A1 (fr) 2012-07-05

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PCT/JP2011/080197 Ceased WO2012091004A1 (fr) 2010-12-28 2011-12-27 Feuille de protection destinée à la surface arrière de modules de cellule solaire, procédé de production de feuille de protection et module de cellule solaire

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WO (1) WO2012091004A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014080806A1 (fr) * 2012-11-22 2014-05-30 日東電工株式会社 Feuille de protection de surface

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007129204A (ja) * 2005-10-07 2007-05-24 Toray Ind Inc 太陽電池裏面封止用フィルムおよびそれを用いた太陽電池
WO2010018662A1 (fr) * 2008-08-12 2010-02-18 ウィンテックポリマー株式会社 Mélange à base de résine téréphtalate de polybutylène et film

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007129204A (ja) * 2005-10-07 2007-05-24 Toray Ind Inc 太陽電池裏面封止用フィルムおよびそれを用いた太陽電池
WO2010018662A1 (fr) * 2008-08-12 2010-02-18 ウィンテックポリマー株式会社 Mélange à base de résine téréphtalate de polybutylène et film

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014080806A1 (fr) * 2012-11-22 2014-05-30 日東電工株式会社 Feuille de protection de surface

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