MULTILAYER SHEET, SOLAR CELL ELEMENT SEALING MATERIAL AND SOLAR CELL MODULE

'Multilayer sheet and solar cell device sealing material for'

A multilayer sheet of the present invention, ethylene based zinc based on ionomer layer and including (A), melting point 90 °C more polyethylene-based copolymer as a primary component including (B) layer at the same, at least (B) (A) layer and a silane coupling layer (A) and further includes a cross-linker, (A) layer and said (B) layer a total thickness of 0.1 ∼ 2 mm is is composed of on. Stage, in an overlay layer (A) silane coupling agent for resin material the ratio an inclusion, in an overlay layer (B) silane coupling agent for resin material consists of the content ratio than to.

(A) layer constituting a multilayer sheet of the present invention, resin material as at least of highly-neutralized ionomers of ethylene based zinc 1 and mainly containing a species, silane coupling agent containing the species to at least 1.. Wherein, 'mainly containing' email widow, a web page or, to total mass layer (A) 'ethylene based zinc ionomer' occupied by 60 mass % to browse detailed data on the circulation promoted. or more.

(A) contains the major component of layer of an ethylene based zinc ionomers, ethylene derived a structural unit of and unsaturated carboxylic acid derived from ethylene with a structural units, unsaturated carboxylic acid copolymer is ionomer of zinc. Base polymer of an ethylene, unsaturated carboxylic acid copolymer of a constituting unit derived from ethylene in the ratio of the % mass 97 ∼ 75 are preferably present in the salt, more preferably is 95 ∼ 75 mass %. Unsaturated carboxylic acid derived from the ratio of the of a constituting unit are preferably present in the salt 3 ∼ 25 mass %, more preferably is 5 ∼ 25 mass %.

Of a constituting unit derived from ethylene if the flow is greater than the ratio of the % mass 75, copolymer heat resistance, good mechanical strength and the like.. On the other hand, of a constituting unit derived from ethylene ratio of the mass 97 is % hereinafter, .good adhesive and the like.

At said unsaturated carboxylic acid, acrylic acid, methacrylic acid, maleic acid, maleic anhydride, maleic anhydride monoester rear vehicle, in particular preferably acrylic acid or methacrylic acid.

Ethylene, acrylic acid copolymer of zinc ionomer, and ethylene, methacrylic acid copolymer of zinc ionomers, a preferred in particular. example of highly-neutralized ionomers of ethylene based zinc.

In ionomers based zinc ethylene, said ethylene base polymer having a shrinkage on film formation, unsaturated carboxylic acid copolymer derived from carboxylic acid unsaturation in a of a constituting unit, adhesion to base such as a glass ([...]) important is to play a role. Unsaturated carboxylic acid derived from ratio of the of a constituting unit is 3 mass % or more, .good transparency or flexible. Furthermore, of a constituting unit derived from unsaturated carboxylic acid containing ratio is 25 mass % hereinafter, stuffiness is suppressed and hence, . readily processable.

Said ethylene, the unsaturated carboxylic acid copolymer, ethylene and unsaturated carboxylic acid total of respect to 100 mass %, 0% hereinafter mass exceeds 30 mass %, preferably 0% mass exceeds 25 mass % hereinafter derived from monomer copolymerizable to the of a constituting unit. may be is included. Other copolymerizable monomers include, unsaturated esters, for example, vinyl acetate and vinyl ester such as vinyl propionic acid; acrylic acid methyl, ethyl acrylate, acrylic acid isobutyl, acrylic acid n-butyl, acrylic acid 2-ethylhexyl, methyl methacrylate such as isobutyl acid and methacrylic acid (metadata) acrylic esters as to the aromatic hydrocarbon. Other copolymer monomer derived from constituent unit which said range inclusion of, ethylene, unsaturated carboxylic acid copolymer. because the flexibility is enhanced.

Ionomer include, neutralizing 80% hereinafter conventional degree, preferably is carried out by using an acidulous is 5 ∼ 80%. Processability, in flexible, neutralizing degree 60% hereinafter 5% or more, in particular 5% or more silica in a 30% hereinafter it is preferable that the.

Said of an ethylene base polymer of highly-neutralized ionomers of ethylene based zinc, unsaturated carboxylic acid copolymer, each a switching element and a pixel electrode high temperature, high pressure to the material is obtained by copolymerizing a a radical. Furthermore, ionomers thereof, such an ethylene, unsaturated carboxylic acid copolymer and zinc oxide, acetic acid zinc material is obtained by reacting.

Ethylene based zinc ionomer include, considering the processability and mechanical strength, 190 °C, 2160g load in having a melt flow rate (MFR; in conformity with JIS K7210-1999) is, 0.1 ∼ 150g/10 ingredient, in particular 0.1 ∼ 50g/10 min. preferably it of using.

Ethylene based zinc without limited to tissues in the melting point of highly-neutralized ionomers of the first substrate are assembled, 90 °C or more, in particular 95 °C having a melting or more heat resistance if preferably to pass through the inside.

(A) layer constituting a multilayer sheet of the present invention, layer solid component, including ethylene based zinc ionomer is preferably 60 mass % or more, more preferably 70 mass % is comprising at least. Ethylene based zinc ionomer said range inclusion of, good transparency, adhesive, . because the durability is obtained.

Said as 100 mass % (A) layer when the user client receiving the game to ethylenically zinc ionomer, ethylene based zinc together selectivity are blended with a resin material, ethylene based zinc (compatibility) and a wear resistance that is superior selectivity compatible, does not detract from the mechanical properties or transparency is alternatively the. available. The engine thereby for reducing fuel consumption, ethylene, unsaturated carboxylic acid copolymer, ethylene, unsaturated esters, preferably unsaturated carboxylic acid copolymer. Ethylene selectivity based zinc are blended with a together, and the translucent resin material is ethylene based zinc ionomer than if resin material having a high melting point, as heat resistance layer (A) of enhancing durability at the. also.

(A) layer and (B) layer of multilayer sheet of the present invention, at least (A) layer, silane coupling agent containing the species to at least 1.. (A) with (B) may silane coupling agents in layer.

A a silane coupling agent which covers the, [...] -γ, [...] -γ, [...] -acrylic γ, [...] -acrylic γ, N-(β-aminoethyl)-γ-amino derived, N-(β-aminoethyl)-γ-amino [...] , with surface enhancer γ, examples of-glycidoxypropyltrimethoxysilane γ can be.

The engine thereby for reducing fuel consumption, a from a silane coupling agent which covers, and adhesion, backsheet or a substrate such as glass with stability and adhesive of the brake pad in at least, which contain amino groups preferably it will be sour, column alkoxy.

Ethylene based zinc ionomers are blended with a at alkoxysilane which contain amino groups, specifically, for example, 3-derived, 3-with surface enhancer, N-(2-aminoethyl)-3-derived such as amino-tree the cock which will know sour turbulent flow , N-(2-aminoethyl)-3-amino [...] , N-(2-aminoethyl)-3-amino [...] , N-(2-aminoethyl)-3-amino [...] , [...] amino 3-, 3-amino [...] , [...] amino-3--phenyl N, [...] amino-3--phenyl N, 3-methyl [...] -N-(1, 3-dimethyl-butyl alkylidene) aminopropylamine, 3-methyl [...] -N-(1, 3-dimethyl-butyl alkylidene) aminopropylamine such as amino- d the cock which will know sour turbulent flow as to the aromatic hydrocarbon.

These, among other things, , N-(2-aminoethyl)-3-amino [...] , N-(2-aminoethyl)-3-amino [...] , N-(2-aminoethyl)-3-amino [...] , [...] amino 3-, . is preferable [...] amino 3-. In particular, N-(2-aminoethyl)-3-amino [...] preferably.

d the cock which will know it will be sour, column formed on a second substrate, processing stability during molding but also low sheet than the working fluid is preferably than.

(A) is coated on, silane coupling number (in particular alkoxysilane having an amino group) the, adhesive dynamically and sheet during molding but also low in terms of processing stability, ethylene based zinc ionomer 100 parts by mass of, 3 parts by mass of hereinafter, preferably 0.03 ∼ 3 parts by mass of, in particular 0.05 ∼ 1.5 parts by mass of is in the weight ratio of. Silane coupling agent inclusion of said range, multilayer sheet and protective material or a solar cell-up elements and the like the objective compound ., the adhesion between the material surface.

(A) layer, the present within such a range that does not detract from the purpose of the invention in, various additive ., or it may be contained. These additives include, for example, ultraviolet light absorbers, photostabilizer, as to the aromatic hydrocarbon number and an anti-oxidant.

Exposed to ultra-violet light by a multi-layer sheet is prevented from deterioration of the light to, ethylene based zinc ionomer during ultraviolet light absorbers, photostabilizer, and the oxidation-resistant number etc. it is preferable that the.

Ultraviolet light absorbers include, for example, 2-hydroxy-4- [...] , 2, 2 '-dihydroxy-4- [...] , 2-hydroxy-4-methoxy-2-carboxylic benzophenone and 2-hydroxy-4-n- [...] such as benzophenone system; 2-(2' -hydroxy -3 ', 5' -di t-butyl phenyl) benzotriazole, 2-(2 '-hydroxy-5-methyl phenyl) benzotriazole and 2-(2' -hydroxy-5-t-octylphenyl) benzotriazole such as benzotriazole; phenyl salycilate and [...] -p [...] of salicylic acid such as is is used.

Photostabilizer include, hindered [...] is is used. Hindered [...] photostabilizer include, for example, 4-acetoxy -2, 2, 6, 6-tetramethyl-piperidine, 4- [...] -2, 2, 6, 6-tetramethyl-piperidine, 4-acrylic pivaloyloxy -2, 2, 6, 6-tetramethyl-piperidine, 4-benzoyl oxy -2, 2, 6, 6-tetramethyl-piperidine, 4-cyclo [...] -2, 2, 6, 6-tetramethyl-piperidine, 4-(o-chloro it cuts the jade city which it will tighten)-2, 2, 6, 6-tetramethyl-piperidine, 4-( [...])-2, 2, 6, 6-tetramethyl-piperidine, 1, 3, 8-user triazine -7, 7, 8880000619 888, 9-tetramethyl -2, 4-dioxo-3-n octyl-spiro [4, 5] decane, bis (2, 2, 6, 6-tetramethyl-4-piperidyl) three Kate , bis (2, 2, 6, 6-tetramethyl-4-piperidyl) terephthalate, bis (1, 2, 2, 6, 6-pentamethyl-4-piperidyl) three Kate , tris (2, 2, 6, 6-tetramethyl-4-piperidyl)-1, 3, 5-benzene polycarboxylate tree, tris (2, 2, 6, 6-tetramethyl-4-piperidyl)-1, 2, 3-plate [...] -2-polycarboxylate tree, tris (2, 2, 6, 6-tetramethyl-4-piperidyl)-2-hydroxypropane -1, 2, 3-tree polycarboxylate, tris (2, 2, 6, 6-tetramethyl-4-piperidyl) polycarboxylate tree -2, 4, 6-triazine, tris (2, 2, 6, 6-tetramethyl-4-piperidine) phosphite, tris (2, 2, 6, 6-tetramethyl-4-piperidyl)-1, 2, 3-butane polycarboxylate tree, tetrakis (2, 2, 6, 6-crotyl WIPO [...] -4-piperidyl) propane -1, 1, 2, 3-tetra polycarboxylate, tetrakis (2, 2, 6, 6-tetramethyl-4-piperidyl)-1, 2, 3, 4-tetra polycarboxylate as to the aromatic hydrocarbon butane.

A an anti-oxidant, various hindered [...] pos [...] is is used. Particular preventive agent which is oxide [...] hindered, 2, 6-di-t-butyl-p-cresol, [...] 2-t-butyl-4-, [...] 3-t-butyl-4-, 2, 6-di-t-butyl-4-ethyl phenol, 2, 2 '-methylene bis (4-methyl-6-t-butyphynol), 2, 2' -methylene bis (4-ethyl-6-t-butyphynol), 4, 4 '-methylene bis (2, 6-di-t-butyphynol), 2, 2' -methylene bis [6-(1-aminocyclohexyl methyl)-p-cresol], bis [3, 3-bis (4-hydroxy-3-t-butyl phenyl) butyl [...] ] glycol ester, 4, 4 '-butyl [...] (6-t-butyl-m-cresol), 2, 2' -ethyl [...] (-butyphynol 6-t-butyl-4-sec), 2, 2 '-ethyl [...] (4, 6-di-t-butyphynol), 1, 1, 3-tris (2-methyl-4-hydroxy-5-t-butyl phenyl) butane, 1, 3, 5-tris (3, 5-di-t-butyl-4-hydroxy benzyl)-2, 4, 6-trimethyl benzene, midifiers targeting nitrooxyderivatives 2, 6-diphenyl-4-phenol, tetrakis [methylene-3-(3, 5-di-t-butyl-4-hydroxyphenyl) propionate] methane, midifiers targeting-n-3-(3, 5-di-t-butyl-4-hydroxyphenyl) propionate, 4, 4' -bis (6-t-butyl-m-cresol), tocopherol, 3, 9-bis [1, 1-dimethyl-2-[ β-(3-t-butyl-4-hydroxy-5-methyl phenyl) cytosines and] ethyl] 2, 4, 8, 10-tetra jade severe acute respiratory syndrome (SARS) fatigue [5, 5] undecane, 2, 4, 6-tris (3, 5-di- at the time of it cuts qualitative mote five t-butyl-4-hydroxy)-1, 3, 5-triazine as to the aromatic hydrocarbon.

Furthermore, said pos [...] oxide preventive agent which is particular, 3, 5-di-t-butyl-4-hydroxy benzyl wire net polycarbonate dimethyl ester, bis (3, 5-di-t-butyl-4-hydroxy [...] , tris (2, 4-di-t-butyl phenyl): polycarbonate such as wire net.

Antioxidant number, photostabilizer, and ultraviolet absorbing agent, ethylene based zinc ionomer 100 parts by mass of, 5 parts by mass of each conventional hereinafter, preferably 0.1 ∼ 3 amount of parts by mass of ., or it may be contained.

Furthermore, layer (A), described in addition to said additives, as needed, colored number, light diffusing number, , and a fire retardant, number for ., or it may be contained as a material of.

A colorant, pigment, inorganic compound and dye as to the aromatic hydrocarbon. Number as coloring white in particular, titanium oxide, zinc oxide and calcium carbonate can be mentionned. These coloured containing solar cell device of a multi-layer sheet sealing material and side when the use as, but of a fuel cell may be inhibiting transparency, solar cell device light-receiving side and opposite side when used as sealing material and is carried out by using an acidulous that preferably has.

Light diffusion zero, for example, as spherical inorganic system, glass beads, silica beads, silicon alkoxide seed beads, hollow glass beads as to the aromatic hydrocarbon. As organic spherical, acrylic beads plastic, such as vinyl benzene orgin constructed as to the aromatic hydrocarbon.

Flame retardant include, for example, bromide of a halogen, such-based flame retardant, phophoric flameretardant, silicon-based flame retardant, magnesium hydroxide, such as aluminum hydroxide as to the aromatic hydrocarbon metal hydrate.

For zero said, metal of thermoplastic resin solution (metal) known as compounds that inhibit, use can be made of, to. For agent, at least one may which practices a 2. Preferably examples for, hydrazide derivatives, or triazole derivatives with. Specifically, can form hydrazide, [...] - [...] , 2', 3-bis [3-[ 3, 5-di-tert-butyl-4-hydroxyphenyl] propionyl] [...] propionate, isophthalic acid bis (2- lung stipendiary hour pro bloom Neel -hydrazide) preferably surface of the radioactive part into contact and, in addition, as triazole derivatives, 3-(N-Salicyloyl) amino -1, 2, 4-triazoles can be preferably. Hydrazide derivatives, triazole derivatives addition, 2, 2 '-dihydroxy -3, 3' -di-(α-3-methylcyclohexyl)-5, 5'-dimethyl, diphenylmethane, tris-(2-methyl-4-hydroxy-5-number 3-isobutyl phenyl) butane, 2-mercaptoacetyl [...] as to the aromatic hydrocarbon mixture of phenolic condensates.

(B) layer constituting a multilayer sheet of the present invention, resin material on the surface of the return bend 90 °C more polyethylene copolymer as mainly. Wherein, 'containing' email widow, a web page or, to total mass layer (B) 'polyethylene copolymer' 6 circulation promoted. 80 mass % or more.

(B) layer if the flow is greater than the melting point of a resin material including the 90 °C, solar cell sealing sheet may be possible but fully using, as heat resistance in particular if the durability and the high melting point, for example, resin material having a melting point or more 100 °C is preferably selected..

(B) layer mainly composed 90 °C or more having a melting point polyethylene copolymer include, for example, ethylene, vinyl acetate copolymer, ethylene, acrylic ester copolymers, ethylene, unsaturated carboxylic acid copolymer and ionomer, high pressure method low density polyethylene, ethylene, α-olefin copolymer as to the aromatic hydrocarbon.

Ethylene, vinyl acetate copolymer include, a of a constituting unit derived from ethylene are preferably present in the salt 99 ∼ 85 mass %, more preferably 99 ∼ 88 is mass %. Furthermore, a of a constituting unit derived from vinyl acetate are preferably present in the salt 1 ∼ 15 mass %, more preferably is 1 ∼ 12 mass %. 85 is of a constituting unit derived from ethylene mass % if the flow is greater than the, . water absorption rate and good heat resistance of copolymers.

Ethylene, vinyl acetate copolymer include, considering the processability and mechanical strength, 190 °C, 2160g load in having a melt flow rate (MFR; in conformity with JIS K7210-1999) is, 0.1 ∼ 150g/10 ingredient, in particular 0.1 ∼ 50g/10 min. preferably it of using.

Ethylene, acrylic ester copolymers include, kind of acrylic esters, acrylic acid methyl, ethyl acrylate, acrylic acid isobutyl, acrylic acid n-butyl, acrylic acid 2-ethylhexyl, methyl methacrylate such as isobutyl acid and methacrylic acid (metadata) acrylic acid ester having a. include tellurium-copolymerizing a public.

Ethylene, in acrylic ester copolymers, a of a constituting unit derived from ethylene, are preferably present in the salt 99 ∼ 85 mass %, more preferably 99 ∼ 88 is mass %. Furthermore, a of a constituting unit derived from acrylic esters are preferably present in the salt 1 ∼ 15 mass %, more preferably is 1 ∼ 12 mass %. 85 is of a constituting unit derived from ethylene mass % if the flow is greater than the, . water absorption rate and good heat resistance of copolymers.

Ethylene, acrylic ester copolymers include, considering the processability and mechanical strength, 190 °C, 2160g load in having a melt flow rate (MFR; in conformity with JIS K7210-1999) is 0.1 ∼ 150g/10 ingredient, in particular 0.1 ∼ 50g/10 min. preferably it of using.

Ethylene, unsaturated carboxylic acid copolymer and ionomer include, as kind of unsaturated carboxylic acid, acrylic acid, methacrylic acid, maleic acid, maleic anhydride, maleic anhydride mono ester having a and include tellurium-copolymerizing a public, in particular acrylic acid or a methacrylic acid copolymerizing it is preferred that a. Ethylene, and ethylene acrylic acid copolymer, methacrylic acid copolymer of zinc ionomers, . example of highly-neutralized ionomers of a preferred in particular.

Ethylene, unsaturated carboxylic acid copolymer and in ionomers, a of a constituting unit derived from ethylene, are preferably present in the salt 99 ∼ 15 mass %, more preferably 99 ∼ 88 is mass %. Furthermore, a of a constituting unit derived from unsaturated carboxylic acid are preferably present in the salt 1 ∼ 15 mass %, more preferably is 1 ∼ 12 mass %. Mass 15 is of a constituting unit derived from ethylene % if the flow is greater than the, . water absorption rate and good heat resistance of copolymers.

Ethylene, unsaturated carboxylic acid copolymer and ionomer include, considering the processability and mechanical strength, 190 °C, 2160g load in having a melt flow rate (MFR; in conformity with JIS K7210-1999) is 0.1 ∼ 150g/10 ingredient, in particular 0.1 ∼ 50g/10 min. preferably it of using.

High pressure method at low density polyethylene, considering the processability and mechanical strength, 190 °C, 2160g load in having a melt flow rate (MFR; in conformity with JIS K7210-1999) is, 0.1 ∼ 150g/10 ingredient, in particular 0.1 ∼ 50g/10 min. preferably it of using.

Ethylene, vinyl acetate copolymer, ethylene, acrylic ester copolymers, high pressure method low density polyethylene, and ethylene, both unsaturated carboxylic acid copolymer, a publicly known conventional [...] auto of pressure of the high pressure method, or [...] is and the in.

Ethylene, α-olefin copolymer include, constituting a represents-OH (monomer unit) heightening the content of the unit overall structure thereof 100 molar % when, in α-olefin 3 ∼ 20 carbon atoms of a constituting unit derived from the content of the is preferably 5 molar % or more, more preferably 10 mole % or more a polymer having a. Α-olefin derived ratio of the a structural unit of said pump-type refrigeration circuit is commenced range, transparency, .good my bleed characteristic. Considering the flexibility in particular, 15 molar % or more using the polymer it is preferred that a.

3 ∼ 20 carbon atoms of said α-olefin in particular, propylene, 1-butene, 1-pentene, 1-hexene, 1-hepten, 1-octene, 1-nonene, 1-hexadecene, 1- fortune it counted , 1-dodecene, 1-hexadecene tree, tetra 1-hexadecene, 1- the pen it burnt and it counted , 1-hexadecene, 1- [...] , 1-octadecene, 1-hexadecene nano, α-olefin such as 1-pherocene eicosa position chain ; 3-methyl-1-butene, 3-methyl-1-pentene, 4-methyl-1-pentene, 2-ethyl-1-hexene, 2, 2, 4-trimethyl-1-pentene such as α-olefin such as on is the exemplary, they are type 2 may utilize combinations of.

The engine thereby for reducing fuel consumption, water carbon atoms-olefin α, versatility in (mass-productivity and, lower cost), is preferably 3 ∼ 10, and, in its turn preferably 3 ∼ 8.

Ethylene, α-olefin copolymer include, in heat resistance, preferably, ethylene, propylene copolymer (ethylene derived a structural unit of content 50 molar % or more of an ethylene, propylene copolymer.), ethylene, 1-polybutene copolymer (ethylene derived a structural unit of content 50 molar % or more of an ethylene, polybutene copolymer 1-. mixture by the addition of an initiator), propylene, ethylene copolymer (propylene derived a structural unit of content 50 molar % or more propylene, . ethylene copolymer), propylene, 1-polybutene copolymer (propylene derived a structural unit of content 50 molar % or more propylene, polybutene copolymer 1-. mixture by the addition of an initiator), α-olefins other than ethylene and propylene copolymer of propylene/ethylene, propylene, 1-hexene is copolymer. Of polyol component is ethylene, α-olefin copolymer the same reason, more preferably, ethylene, propylene copolymer, ethylene, 1-polybutene copolymer, propylene, 1-polybutene copolymer, propylene, 1-hexene copolymer, propylene, ethylene, 1-polybutene copolymer, propylene, ethylene, 1-hexene copolymer and, more preferably, ethylene, propylene copolymer, ethylene, 1-polybutene copolymer, propylene, 1-and polybutene copolymer, in particular preferably, ethylene, propylene copolymer, ethylene, 1-and polybutene copolymer, most preferably ethylene, is propylene copolymer.

Sheet for solar cell sealing in, said ethylene, α-olefin copolymer a, 1 species and may be used alone, 2 may are used in combination with at least one.

Said star-shaped such as ethylene, α-olefin copolymer a, processes using the catalysts dispersity, slurry polymerization method, solution polymerization method, bulk (lump) produced by the processes, such as vapor-phase polymerization of an doped region is to be formed.. The catalyst, for example, Japanese Public Patent Notification bovine 58-19309 call, Japanese Public Patent Notification bovine 60-35005 call, Japanese Public Patent Notification bovine 60-35006 call, Japanese Public Patent Notification bovine 60-35007 call, Japanese Public Patent Notification bovine 60-35008 call, Japanese Public Patent Notification bovine 61-130314 call, call 3-163088 Japanese Public Patent Notification flat, Japanese Public Patent Notification flat 4-268307 call, call 9-12790 Japanese Public Patent Notification flat, Japanese Public Patent Notification flat 9-87313 call, call 10-508055 Japanese Public Patent Notification flat, Japanese Public Patent Notification flat 11-80233 call, call 10-508055 flat patent gazette Japanese Publication metal substrate or the like can be exemplified catalyst dispersity. Furthermore, using a metallocene catalyst embodiment of manufacturing method in particular, specification of European patent application disclosure number 1211287 call can be is exemplified method.

Ethylene, α-olefin copolymer a, as well as catalyst dispersity, ethylene there of as principal ingredient the copolymers in, soluble vanadium compounds with organic aluminum halide consisting of the presence of vanadium based catalyst, or 0-150 DEG.C. and of compounds and the like zirconium these ligands such as metallocene compounds with organic aluminium oxy compound consisting of dispersity in the presence of catalyst, ethylene and other α-olefins prepared by copolymerizing a may be loaded with. Furthermore, based on polypropylene the copolymers in, highly active titanium catalyst component or dispersity catalyst component such as transition metal compound components, organic aluminum component, electron donor as needed, carrier or the like in the presence of a catalyst for olefins polymerization stereoregular including, polypropylene and other α-olefins may be loaded with prepared by sum.

Ethylene, α-olefin copolymer include, formability, considering the mechanical strength or the like, shape conforming to ASTM D-1238, 230 °C, 2160g under load having a melt flow rate (MFR) is measured, 0.1 ∼ 150g/10 ingredient, in particular 0.5 ∼ 20g/10 min. it is preferred that a of using.

(B) layer, the present within such a range that does not detract from the purpose of the invention in, various additive ., or it may be contained. These additives include, an additive which can contained layer (A) said as can be mentionned all to described. Furthermore, layer (B), said additive contains layer (A) the voltage of the positive to the amount ., or it may be contained.

In the present invention, a silane coupling agent with (A) (B) layer may contains, is the containing in both layer (B) and (A). In the present invention, in an overlay layer (B) resin material (melting point 90 °C more polyethylene copolymer includes.) to the ratio containing silane coupling agent, in an overlay layer (A) resin material (ethylene based zinc.., including ionomers) to silane coupling agent preferably less than a proportion containing. The engine thereby for reducing fuel consumption, more preferably, in an overlay layer (B) ratio containing said silane coupling agent in an overlay layer (A) 50% hereinafter and the content ratio of said silane coupling agent, a silane coupling layer and, in its turn (B) does not include substantial inhibition of 'of the solids layer (B) 0.1 mass % hereinafter' is preferably, (B) layer, through the silane coupling agents in the event that the receiver does not (0 mass %)is preferably in particular.

A multilayer sheet of the present invention, selectivity based zinc ethylene mainly composed including (A) a silane coupling agent layer and, 90 °C melting more polyethylene-based copolymer as a primary component as including (B) having a layer of a pressure sensitive, (B) layer (A) layer and 0.1 ∼ 2 mm a total thickness of multilayer sheet including time as large as that of. A preferred has a total thickness, is 0.2 ∼ 1.5 mm. Multilayer sheet has a total thickness of from, if the flow is greater than the 0.1 mm, solar cell device or wiring... etc for sealing a is suitable for, is 2 mm hereinafter, multilayer sheet and excellent transparency adsorbed to the first, formula 1. design characteristics and is less prone to.

(A) layer, ethylene based zinc ionomer 1 layer is formed as main ingredient is preferably but a structure, ethylene or composition of highly-neutralized ionomers of ethylene based zinc, unsaturated carboxylic acid copolymer (preferably ethylene, (metadata) acrylic acid copolymer) contained in the other copolymerizable monomer ratio of fibers to form a plurality of layers other and the like as described above may be..

(A) layer, is laminated to not layer (B). (B) layer in addition, equal to layer (A), single layer is formed but is preferably a structure, other polyethylene copolymer as a primary component a plurality of layered laminated structure is even.

Said as described, a multilayer sheet, by a layer (B) (A) layer and fibers to form a plurality of layers but layer is preferably, in particular preferably, intermediate layer and the layer is (B), the intermediate formed on the opposite sides that they sandwich the (A) layer being disposed above the nitride layer an outer layer including 3 or layer sheet, or (A) layer and including 2 layer is layer sheet (B).

Multilayer sheet constituting a thickness of said layer (A) and a (a), (b) thickness of said layer (B) (a/b) non a, 20/1 ∼ 1/20, preferably is 10/1 ∼ 1/10. (A) layer and (B) layer thickness ratio of said is (a/b) if within range, solar cell module which is suitable for use, adhesive, heat resistance, durability and cost is a multi-layer sheet is excellent in such are obtained.

Molding the multilayer sheet of the present invention, single-or multi-layer T-extruder, to heightened, or single-or multi-layer inflation molding machine or the like using a publicly known method can be performed by.. For example, ethylene ionomer, and each copolymer polyethylene, adhesive imparting number, number antioxidant, photostabilizer, and ultraviolet absorber added according to necessity as a material of the dry blend and, multilayer T wire of the fed from hopper bell extruder and week extruder , multilayer sheet form, then waste green sheet is extrusion molding.

A multilayer sheet of the present invention, sealing material and for solar cell device refers to preferably as, the engine thereby for reducing fuel consumption, sensitivity silicon solar cell device with inserted is preferably used in..

'Solar cell module'

Disclosed is a solar battery module of the present invention, solar cell device of an upper part and a lower part and fixed by protective material is made by. Solar cell module of the present invention include, for example, upper transparent protective material/multilayer sheet/solar cell device/multilayer sheet and lower protection material, SCH as, solar cell device from both sides of it a sandwiching the multilayer sheet; upper transparent protective material on the inner peripheral surface of an solar cell device formed, for example, glass, fluororesin sheet a sputtering solar cell devices sensitivity RF welding lower multilayer sheet and products to form an intermediate protective material can be a member, or the like. Such solar cell module picks up, of the present invention multilayer sheet is 3 (B) layer / (A) layer / (B) layer when the layer structure, one layer (B) it is an external layer such solar battery element and a contact portion, other it is an external layer (B) layer upper transparent protective material is laminated to protective material or lower. Furthermore, multilayer sheet of the present invention is (A) layer / (B) layer when the layer structure 2, such solar battery element and a contact portion (A) layer, the upper layer (B) (backsheet) protective material or lower protective material are layered such that the is brought into contact.

In the present invention using polyethylene copolymer (B) layer diode and manufacturing method of the same multilayer sheet including sealing material for device a, .the outputable. Each solar cell generally a, by depositing a metal film electrode use is made of an electrolyte is connected to the semiconductor layer. tendency the determined moisture. Therefore, sealing material for solar cell device of the present invention a thin film solar cell is applied to the a preferred form is one-like low. Specifically, upper transparent protective material formed on the inner peripheral surface of an solar cell device sealed onto the sheet (sealing material for solar cell device) and a lower protection material formed each solar cell applied to is one-like low where it is desirable.

Solar cell device include, single crystal silicon, polycrystalline silicon, and sensitivity of silicon, IV semiconductor; gallium-arsenic, copper-indium-selenate, copper-indium-gallium-selenate and cadmium-tellurium such as of a compound semiconductor group II-VI and III-V solar cell device such as is is used.

In the embodiment

Hereinafter, embodiment of the present invention a described more specifically and/or at least two different. The present invention refers to, a not exceed the main know the start of the, hereinafter embodiment of aspect limited not. Furthermore, specially to dually function as a pipeline and not, 'part (43)' reference is the mass.

Of the following in the embodiment, material used for compared, combination of each layer, substrate ([...]), and evaluating the method, were as follows..

-(1) resin-

1. (A) layer suspicion resin material

, Ionomer 1: ethylene, methacrylic acid copolymer (methacrylic acid unit content = 8.5 mass %)of zinc ionomer (also neutralizing 17%, MFR 5.5g/10 ingredient, melting point 98 °C)

, Ionomer 2: ethylene, methacrylic acid, acrylic acid isobutyl 3 won copolymer (methacrylic acid unit content = 10 mass %, acrylic acid isobutyl unit content = 10 mass %)of zinc ionomer (28% also neutralizing, MFR 9g/10 ingredient)

2. (B) layer suspicion resin material

, EVA: ethylene, vinyl acetate copolymer (vinyl acetate 6 mass %, MFR 7.5g/10 ingredient, melting point 94 °C)

, EMAA: ethylene, methacrylic acid copolymer (methacrylic acid 4 mass %, MFR 7g/10 ingredient, melting point 103 °C)

, PE: polyethylene copolymer ([...] chemical (main) of manufacture by emboss current SP1071C (8.6g/10 ingredient, melting point 110 °C); ethylene, 1-hexene copolymer)

, Ionomer 1: ethylene, methacrylic acid copolymer (methacrylic acid unit content 8.5 mass %)of zinc ionomer (also neutralizing 17%, MFR 5.5g/10 98 °C melting point ingredient)

, Ionomer 3: ethylene, methacrylic acid copolymer (methacrylic acid unit content 15 mass %)of zinc ionomer (also neutralizing 23%, MFR 5g/10 ingredient, melting point 91 °C)

-(2) additive-

, Antioxidant number: Irganox1010 ([...] , special tee, chemical Chiens searching (main) manufacturing)

, Ultraviolet light absorbers: [...] -4-n hydroxy-2-

, Problems stabilizer: bis (2, 2, 6, 6-tetramethyl-4-piperidyl) three Kate

, Silane coupling number: N-(2-aminoethyl)-3-amino [...]

Furthermore, ultraviolet absorbent and stabilizers problems, on each one of a each containing the above resin; and of the same resin with, resin/ultraviolet light absorbers/problems = 95.5/3/1.5 stabilizer pre-mass ratio of master stabilizer to the twin screw extruder axis 2 produced, the third to eo.

-(3) combination-

All combination of layer forms a gap smaller than the specified, are previously mixed to mass ratio of hereinafter was performed. When the silane coupling combining at, polyethylene bag material in the mixing machine, agitating, the third to eo with tumbler 30 minute or more.

<(A)층 >

, (A)-1: ionomer 1 stabiliser master batch/antioxidant number number = 96/4/0.03/0.2 silane coupling/

, (A)-2: ionomer 2 stabiliser master batch/antioxidant number number = 96/4/0.03/0.4 silane coupling/

, (A)-3: ionomer 1/EMAA stabiliser master batch/antioxidant number number = 66/30/4/0.03/0.4 silane coupling/

<(B)층 >

, (B)-1: EVA number = 96/4/0.03 antioxidant/master batch stabiliser

, (B)-2: EMAA number = 96/4/0.03 antioxidant/master batch stabiliser

, (B)-3:PE number = 96/4/0.03 antioxidant/master batch stabiliser

, (B)-4: ionomer 1 number = 96/4/0.03 antioxidant/master batch stabiliser

, (B)-5: ionomer 3 number = 96/4/0.03 antioxidant/master batch stabiliser

-(4) substrate-

[...] i) 3.9 mm ([...]) rice bran-fiberized glass ([...] yarn asahi)

Tempered glass [...] ii) 3.2 mm ([...] yarn asahi)

Iii) 3.2 mm whiteboard (white) glass ([...] yarn asahi) heat treatment

Iv) backsheet: if a malfunction of the which engages MA ALTD700 of manufacture by

-(5) evaluation-

Of the following in the embodiment and comparison e.g. the evaluation to a multi-layer sheet produced on a method exhibits to hereinafter.

I) bond strength between layers

Multilayer sheet layers and by peeling the adhesive strength adhesive strength actually it was determined that 300 mm/min. speed tensile width. 15 mm measured at conditions.

Ii) adhesive strength

-fiberized glass rice bran [...] thickness of 3.9 mm (75 mm × 120 mm) and terminates in a free edge using multilayer sheet thickness of 0.4 mm, vacuum heating adhering machine (LM-50x50S, yarn NPC) 150 °C by, regulation unit moves simultaneously at the same 6 minutes, rice bran [...] -fiberized glass/multilayer sheet, or consisting of rice bran [...] -fiberized glass/multilayer sheet/ with hundred seats sample having configuration which have been prepared. These to the, between sheet and multi-layer glass, multilayer sheet and [...] measuring adhesive strength, maximum thereof, light with the index evaluating adhesive strength. 15 mm width tensile speed 100 mm/min. measured at conditions.

Iii) transparency

Tempered glass [...] thickness of 3.2 mm (75 mm × 120 mm) using multilayer sheet thickness of 0.4 mm and, vacuum heating adhering machine (LM-50x50S, yarn NPC) 150 °C by, 6 minutes glass/regulation unit moves simultaneously at the same multilayer sheet/glass made sample having configuration which have been prepared. To this sample for, haze meter (picks up the tester (main) manufacturing) is emitted to the beam transmissitivity JIS-K7105 to (firing cables) and substrate measured CD, measured value light with the index for evaluating transparency.

Iv) heat resistance (deviation cell)

Glass heat treatment whiteboard thickness of 3.2 mm (250 mm × 250 mm) using multilayer sheet and, polycrystalline silicon cell (PHOTOWATT yarn, PWP4CP3, 101 mm × 101 mm, polycrystalline silicon cell, thickness 250 micro m), multilayer sheet, and are laminated in turn, includes a hundred seats , vacuum heating adhering machine (LM-50x50S, yarn NPC) 150 °C by, 6 minutes the sample brazed at conditions of oven of. 100 °C in been produced with at, 60° inclination of 8 applied silicon hours it is found out that whether a plurality pixels has cell.

V) heat-resistant endurance test (the nozzle devices inject pressurized, cooker, test: PCT)

In the embodiment 1, 3, 7 a, and comparison e.g. for to a multi-layer sheet produced on 1, each of these multilayer sheet, of thickness of 3.2 mm 2 glass [...] (120 mm × 75 mm) between to sandwich the electrolyte, vacuum heating adhering machine (LM-50x50S, yarn NPC) 170 °C by, unit moves simultaneously at the same distance is welded on the projection 10 minutes, a glass composition of sample have been prepared. This for sterilizing processor (MCS-23 type, [...] (main) manufacturing) to, 105 °C, 100% RH, 0.12 MPa the time 12 unit moves simultaneously at the same distance, change in appearance has been observed on whether (foam) occurs. Result, exhibits to to table 2.

-(6) in the " in-mould-of multilayer sheet

A multilayer sheet, hereinafter which indicates to molding machine film. Both molding machine of 40 mm φ 2,000. extrusion shortened, die is 500 mm width.

, Multilayer layer 3 species 3 Multicast molding machine: other or hemp cloth plastic machine (main) manufacturing

, Coextruded feedblock: EDI yarn

[In the embodiment 1]

(A)-1 for outer, the to a (B)-2, multilayer casting in resin temperature by 180 °C, thickness ratio (outer outer layer/interlayer/1 2) = 1/2/1, total thickness 400 micro m (0.4 mm) constructed with a multilayer sheet of. The multi-layer using was there are various. 1 table a result exhibits to.

[In the embodiment 2]

In the embodiment 1 in, intermediate layer it is used in the method for transforming a heat (B)-1 a (B)-2, thickness ratio (1/interlayer/outer outer 2) 1 / = 1/4 (total thickness = 0.4 mm) the region other than the on the, in the embodiment 1 and a second stage, and radiating the light of the predetermined multilayer sheet, was there are various. 1 table a result exhibits to.

[In the embodiment 3]

In the embodiment 1 in, intermediate layer it is used (B)-3 a (B)-2 is changed to a except, in the embodiment 1 and a second stage, and radiating the light of the predetermined multilayer sheet, was there are various. 1 table a result exhibits to.

[In the embodiment 4]

In the embodiment 1 in, intermediate layer it is used a starting to write (B)-4 a (B)-2 (total thickness = 0.4 mm) except, in the embodiment 1 and a second stage, and radiating the light of the predetermined multilayer sheet, was there are various. 1 table a result exhibits to.

[In the embodiment 5]

In the embodiment 1 in, outer (A)-2 a (A)-1 it is used in the method for transforming a heat, intermediate layer it is used a starting to write (B)-4 a (B)-2 (total thickness = 0.4 mm) except, in the embodiment 1 and a second stage, and radiating the light of the predetermined multilayer sheet, was there are various. 1 table a result exhibits to.

[In the embodiment 6]

In the embodiment 1 in, outer (A)-2 a (A)-1 it is used in the method for transforming a heat, intermediate layer it is used a starting to write (B)-5 a (B)-2 (total thickness = 0.4 mm) except, in the embodiment 1 and a second stage, and radiating the light of the predetermined multilayer sheet, was there are various. 1 table a result exhibits to.

[In the embodiment 7]

In the embodiment 1 in, outer layer it is used for (A)-1 is changed to a (A)-3 (total thickness = 0.3 mm) except, in the embodiment 1 and a second stage, and radiating the light of the predetermined multilayer sheet, was there are various. 1 table a result exhibits to.

[Compared e.g. 1]

In the embodiment 1 in, outer layer 1, outer even which and an intermediate layer 2 using (A)-1, single-layered sheet composed (A)-1 (thickness = 0.4 mm) constructed with a. The processing conditions and equal to a in the embodiment 1, in addition, in the embodiment 1 and was there are various a second stage. 1 table a result exhibits to.

[Compared e.g. 2]

In the embodiment 1 in, outer layer 1, outer even which and an intermediate layer 2 using (A)-2, (A)-2 (thickness = 0.4 mm) single-layered sheet composed constructed with a. The processing conditions and equal to a in the embodiment 1, in addition, in the embodiment 1 and was there are various a second stage. 1 table a result exhibits to.

Furthermore, obtained from said using a multi-layer sheet, glass/multilayer sheet/solar cell device/multilayer sheet/solar cell overlapping by pressing hundred seats laminated order, group represented by the formula 1. solar cell module.

Said table 1 ∼ table 2 as shown in the, in in the embodiment, adhesive strength, durability, has high heat resistance, cost is inhibited a multi-layer sheet were achieved for.