WO2012073859A1 - 屋外用ウレタン接着剤 - Google Patents
屋外用ウレタン接着剤 Download PDFInfo
- Publication number
- WO2012073859A1 WO2012073859A1 PCT/JP2011/077316 JP2011077316W WO2012073859A1 WO 2012073859 A1 WO2012073859 A1 WO 2012073859A1 JP 2011077316 W JP2011077316 W JP 2011077316W WO 2012073859 A1 WO2012073859 A1 WO 2012073859A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- adhesive
- outdoor
- urethane adhesive
- compound
- solar cell
- Prior art date
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- 239000000853 adhesive Substances 0.000 title claims abstract description 119
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 117
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 title claims abstract description 79
- -1 isocyanate compounds Chemical class 0.000 claims abstract description 156
- 239000012948 isocyanate Substances 0.000 claims abstract description 64
- 150000003077 polyols Chemical class 0.000 claims abstract description 43
- 229920005862 polyol Polymers 0.000 claims abstract description 40
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims abstract description 16
- 229910000077 silane Inorganic materials 0.000 claims abstract description 12
- 150000001875 compounds Chemical class 0.000 abstract description 15
- 239000010408 film Substances 0.000 description 61
- 239000000463 material Substances 0.000 description 24
- 125000003118 aryl group Chemical group 0.000 description 16
- 229920005906 polyester polyol Polymers 0.000 description 16
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 15
- 229910052751 metal Inorganic materials 0.000 description 14
- 239000002184 metal Substances 0.000 description 14
- VMRIVYANZGSGRV-UHFFFAOYSA-N 4-phenyl-2h-triazin-5-one Chemical compound OC1=CN=NN=C1C1=CC=CC=C1 VMRIVYANZGSGRV-UHFFFAOYSA-N 0.000 description 13
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 10
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 10
- 238000011156 evaluation Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000002985 plastic film Substances 0.000 description 8
- 229920006255 plastic film Polymers 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- 239000011347 resin Substances 0.000 description 8
- FKTHNVSLHLHISI-UHFFFAOYSA-N 1,2-bis(isocyanatomethyl)benzene Chemical compound O=C=NCC1=CC=CC=C1CN=C=O FKTHNVSLHLHISI-UHFFFAOYSA-N 0.000 description 7
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 7
- 238000000034 method Methods 0.000 description 7
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- 230000000052 comparative effect Effects 0.000 description 6
- 239000003063 flame retardant Substances 0.000 description 6
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 description 6
- 239000005020 polyethylene terephthalate Substances 0.000 description 6
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 5
- 239000003963 antioxidant agent Substances 0.000 description 5
- 230000003078 antioxidant effect Effects 0.000 description 5
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- 239000012964 benzotriazole Substances 0.000 description 5
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- 239000000126 substance Substances 0.000 description 5
- 239000010409 thin film Substances 0.000 description 5
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- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 4
- 239000005058 Isophorone diisocyanate Substances 0.000 description 4
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- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 4
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 4
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- 125000000753 cycloalkyl group Chemical group 0.000 description 4
- 150000002430 hydrocarbons Chemical group 0.000 description 4
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 4
- 150000004756 silanes Chemical class 0.000 description 4
- DQZNLOXENNXVAD-UHFFFAOYSA-N trimethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)ethyl]silane Chemical compound C1C(CC[Si](OC)(OC)OC)CCC2OC21 DQZNLOXENNXVAD-UHFFFAOYSA-N 0.000 description 4
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 4
- 238000007740 vapor deposition Methods 0.000 description 4
- 238000004383 yellowing Methods 0.000 description 4
- QWOVEJBDMKHZQK-UHFFFAOYSA-N 1,3,5-tris(3-trimethoxysilylpropyl)-1,3,5-triazinane-2,4,6-trione Chemical compound CO[Si](OC)(OC)CCCN1C(=O)N(CCC[Si](OC)(OC)OC)C(=O)N(CCC[Si](OC)(OC)OC)C1=O QWOVEJBDMKHZQK-UHFFFAOYSA-N 0.000 description 3
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- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 3
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- 239000004593 Epoxy Substances 0.000 description 3
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- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 3
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 3
- 125000001931 aliphatic group Chemical group 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 150000002009 diols Chemical class 0.000 description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 description 3
- 238000009408 flooring Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 3
- ACCCMOQWYVYDOT-UHFFFAOYSA-N hexane-1,1-diol Chemical compound CCCCCC(O)O ACCCMOQWYVYDOT-UHFFFAOYSA-N 0.000 description 3
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- WXUAQHNMJWJLTG-UHFFFAOYSA-N 2-methylbutanedioic acid Chemical compound OC(=O)C(C)CC(O)=O WXUAQHNMJWJLTG-UHFFFAOYSA-N 0.000 description 2
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- CUGQQXKZSRAAEC-UHFFFAOYSA-N 2-[dimethoxy(methyl)silyl]ethyl prop-2-enoate Chemical compound CO[Si](C)(OC)CCOC(=O)C=C CUGQQXKZSRAAEC-UHFFFAOYSA-N 0.000 description 1
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- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/06—Polyurethanes from polyesters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/049—Protective back sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
- C08G18/3819—Low-molecular-weight compounds having heteroatoms other than oxygen having nitrogen
- C08G18/3842—Low-molecular-weight compounds having heteroatoms other than oxygen having nitrogen containing heterocyclic rings having at least one nitrogen atom in the ring
- C08G18/3851—Low-molecular-weight compounds having heteroatoms other than oxygen having nitrogen containing heterocyclic rings having at least one nitrogen atom in the ring containing three nitrogen atoms in the ring
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
-
- 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 an outdoor urethane adhesive. Furthermore, this invention relates to the solar cell backsheet obtained using the adhesive agent, and the solar cell module obtained using the solar cell backsheet.
- Outdoor materials such as barrier materials, roofing materials, solar cell panel materials, window materials, outdoor flooring materials, lighting protection materials, automobile members, and signboards are laminated materials in which a plurality of films are bonded with an adhesive.
- Examples of the film constituting the laminate include metal foils such as aluminum, copper, and steel plates, metal plates and metal vapor deposited films, plastic films such as polypropylene, polyvinyl chloride, polyester, fluororesin, and acrylic resin. .
- the outdoor adhesive Since these laminates are exposed to ultraviolet rays for a long time, the outdoor adhesive is required to have excellent weather resistance.
- outdoor adhesives particularly for adhesives for solar cells that convert sunlight into electric power, a higher level of weather resistance than that of ordinary outdoor adhesives is desired.
- Solar cells are being put into practical use as useful energy resources.
- There are various types of solar cells and typical examples include silicon solar cells, compound solar cells, and organic solar cells.
- These solar cells are generally provided with a surface protective sheet on the side where sunlight enters for the purpose of protecting the surface.
- a back surface protection sheet (back sheet) is also provided on the surface opposite to the surface on which sunlight is incident for the purpose of protecting the solar cells.
- the back sheet 10 is a laminate of a plurality of films 11 and 12, and the films 11 and 12 are laminated via an adhesive 13.
- the back sheet 10 constitutes the solar cell module 1 together with the sealing material 20, the solar cells 30, and the glass plate 40 (see FIG. 3).
- the solar cell module 1 Since the solar cell module 1 is exposed to sunlight for a long time outdoors, sufficient durability and weather resistance are required. In particular, when the performance of the adhesive 13 is low, the films 11 and 12 are peeled off, and the appearance of the back sheet 10 is impaired. For this reason, it is requested
- Patent Documents 1 and 2 disclose that a urethane-based adhesive is used as an adhesive for a solar battery back sheet (see, for example, Patent Document 1, Claim 1 and Patent Document 2, Paragraph No. 0037).
- Urethane adhesives are known as adhesives that bond films together, but it is difficult to say that they have sufficient durability for solar cell backsheet applications that are exposed outdoors for long periods of time.
- Patent Document 3 discloses an outdoor urethane adhesive that uses a specific polyester polyol and has improved durability (see Patent Document 3, Claims, Paragraph No. 0014, etc.). It is disclosed that by using a specific polyester polyol as an adhesive raw material, the hydrolysis resistance of a urethane adhesive is improved, and an adhesive effective for solar cell backsheet use can be obtained (Patent Document 3, Paragraph Nos. 0070- 0072 etc.).
- the adhesive for solar battery back sheets is required not only to maintain the peel strength for a long period of time, but also to have a small color difference change and extremely excellent weather resistance.
- the present invention has been made to solve such a problem, and the problem is that an outdoor urethane adhesive having high peel strength and excellent weather resistance, and a solar battery bag obtained by using the adhesive. It is providing the solar cell module obtained using a sheet
- the inventor surprisingly uses a specific polyol and a specific isocyanate compound as a raw material for a urethane resin, and further adds a specific ultraviolet absorber, whereby adhesion strength and weather resistance are increased.
- the present inventors have found that an outdoor urethane adhesive having significantly improved properties can be obtained, and have completed the present invention.
- the present invention provides the following first aspect: (A) a urethane resin obtained by reacting an isocyanate compound (a1) with a polyol (a2) having an ester bond, and (B) a hydroxyphenyltriazine compound,
- the isocyanate compound (a1) provides an outdoor urethane adhesive containing at least one selected from aliphatic isocyanates and alicyclic isocyanates.
- the present invention provides an outdoor urethane adhesive, wherein the polyol (a2) comprises at least one selected from a polyester polyol and an acrylic polyol. In another aspect, the present invention provides an outdoor urethane adhesive further comprising a silane compound.
- the present invention provides an outdoor urethane adhesive further comprising a hindered phenol compound. In a further aspect, the present invention provides an outdoor urethane adhesive further comprising a hindered amine compound.
- the present invention provides a solar battery back sheet obtained by using the outdoor urethane adhesive.
- the present invention provides a solar cell module obtained by using the solar cell back sheet.
- the outdoor urethane adhesive according to the present invention is (A) a urethane resin obtained by reacting an isocyanate compound (a1) with a polyol (a2) having an ester bond, and (B) a hydroxyphenyltriazine compound, Since the isocyanate compound (a1) contains at least one selected from aliphatic isocyanates and alicyclic isocyanates, The performance of both peel strength and weather resistance is improved, and the adhesive becomes suitable as an adhesive for solar battery backsheet. In particular, since the organic solar battery back sheet is required to have colorability and flexibility, the outdoor urethane adhesive of the present invention is more preferable as the organic solar battery back sheet adhesive.
- the polyol (a2) comprises at least one selected from polyester polyols and acrylic polyols, since it contains either polyester polyols or acrylic polyols, an outdoor urethane adhesive with further improved peel strength can be obtained. .
- the outdoor urethane adhesive of the present invention further includes a silane compound, so that the peel strength is improved, the weather resistance is further improved, and an adhesive more suitable as an adhesive for solar battery backsheets.
- the outdoor urethane adhesive of the present invention further includes a hindered phenol compound, so that the weather resistance is further improved, and the adhesive becomes more suitable as an adhesive for a solar battery backsheet.
- the outdoor urethane adhesive of the present invention further includes a hindered amine compound, so that the weather resistance is improved by a synergistic effect with hydroxyphenyltriazine, and can be more preferably used as an adhesive for a solar battery backsheet. .
- the solar cell backsheet according to the present invention is obtained using the above-mentioned outdoor urethane adhesive, even if it is exposed outdoors for a long period of time, the adhesive deteriorates, the film does not peel off, and the film does not discolor.
- an organic solar cell using an organic compound in a light absorption layer has been developed, and it is required that the organic solar cell has coloring and flexibility. Therefore, since the film which comprises the back sheet
- the outdoor urethane adhesive according to the present invention contains (A) a urethane resin and (B) a hydroxyphenyltriazine-based compound.
- the urethane resin (A) according to the present invention is a polymer obtained by a reaction between an isocyanate compound (a1) and a polyol (a2) having an ester bond, and has a urethane bond.
- Isocyanate compound (a1) comprises at least one selected from aliphatic isocyanates and alicyclic isocyanates, and is particularly limited as long as the outdoor urethane adhesive intended by the present invention can be obtained. is not.
- the “isocyanate compound (a1)” according to the present invention does not mean that it is composed only of an aliphatic isocyanate and an alicyclic isocyanate.
- the isocyanate compound (a1) is an aromatic isocyanate. May be included.
- an isocyanate compound (a1) does not contain an ethylenic double bond (for example, ethylene group, butylene group, etc.) from a viewpoint of a weather resistance.
- isocyanates are classified into aliphatic isocyanates, alicyclic isocyanates, and aromatic isocyanates as described above.
- the isocyanate compound (a1) which is a constituent of the present invention, includes aliphatic isocyanates and alicyclic isocyanates. Since it contains at least 1 sort (s) selected from these, it is not comprised only with aromatic isocyanate.
- aliphatic isocyanate is a compound having a chain-like hydrocarbon chain in which an isocyanate group is directly bonded to the hydrocarbon chain, and having no cyclic hydrocarbon chain. Refers to a compound.
- the “aliphatic isocyanate” may have an aromatic ring, but the aromatic ring and the isocyanate group are not directly bonded. In the present specification, the aromatic ring is not included in the cyclic hydrocarbon chain.
- the “alicyclic isocyanate” is a compound that has a cyclic hydrocarbon chain and may have a chain hydrocarbon chain. The isocyanate group may be directly bonded to the cyclic hydrocarbon chain or may be directly bonded to the chain hydrocarbon chain that may be included.
- the “alicyclic isocyanate” may have an aromatic ring, but the aromatic ring and the isocyanate group are not directly bonded.
- Aromatic isocyanate refers to a compound having an aromatic ring and having an isocyanate group directly bonded to the aromatic ring. Therefore, even if an aromatic ring is present in the molecule, a compound in which the isocyanate group is not directly bonded to the aromatic ring is classified as an aliphatic isocyanate or an alicyclic isocyanate. Therefore, for example, 4,4′-diphenylmethane diisocyanate (OCN—C 6 H 4 —CH 2 —C 6 H 4 —NCO) corresponds to an aromatic isocyanate because the isocyanate group is directly bonded to the aromatic ring. .
- xylylene diisocyanate (OCN—CH 2 —C 6 H 4 —CH 2 —NCO) has an aromatic ring, but the isocyanate group is not directly bonded to the aromatic ring but is bonded to the methylene group.
- OCN—CH 2 —C 6 H 4 —CH 2 —NCO xylylene diisocyanate
- the aromatic ring may be condensed with two or more benzene rings.
- Examples of the aliphatic isocyanate include 1,4-diisocyanatobutane, 1,5-diisocyanatopentane, 1,6-diisocyanatohexane (hereinafter referred to as HDI), 1,6-diisocyanato-2,2,4.
- Examples include -trimethylhexane, methyl 2,6-diisocyanatohexanoate (lysine diisocyanate), 1,3-bis (isocyanatomethyl) benzene (xylylene diisocyanate), and the like.
- alicyclic isocyanate examples include 5-isocyanato-1-isocyanatomethyl-1,3,3-trimethylcyclohexane (isophorone diisocyanate), 1,3-bis (isocyanatomethyl) cyclohexane (hydrogenated xylylene diisocyanate).
- Bis (4-isocyanatocyclohexyl) methane hydrochloride
- 1,4-diisocyanatocyclohexane examples include 5-isocyanato-1-isocyanatomethyl-1,3,3-trimethylcyclohexane (isophorone diisocyanate), 1,3-bis (isocyanatomethyl) cyclohexane (hydrogenated xylylene diisocyanate).
- Bis (4-isocyanatocyclohexyl) methane hydrochloride
- 1,4-diisocyanatocyclohexane 1,4-diisocyanatocyclohex
- the isocyanate compound (a1) may contain an aromatic isocyanate as long as the urethane adhesive targeted by the present invention can be obtained.
- aromatic isocyanates include 4,4′-diphenylmethane diisocyanate, p-phenylene diisocyanate, m-phenylene diisocyanate, and the like. These isocyanate compounds can be used alone or in combination.
- HDI, isophorone diisocyanate, and xylylene diisocyanate are preferable, and an HDI trimer, an isophorone diisocyanate trimer, and a xylylene diisocyanate monomer are particularly preferable.
- the polyol (a2) having an ester bond is not particularly limited as long as it includes either a polyester polyol or an acrylic polyol, and the outdoor urethane adhesive intended by the present invention can be obtained. .
- the polyol (a2) which has an ester bond does not contain an ethylenic double bond from a weather-resistant viewpoint.
- the “polyester polyol” refers to a “main chain type” polyester and a compound having an ester bond and a hydroxyl group in the “main chain”. This hydroxyl group is usually located at the end of the main chain and acts as a functional group that reacts with an isocyanate group.
- the polyester polyol is generally obtained by a condensation polymerization reaction between a low molecular polyol, a dicarboxylic acid and an anhydride thereof.
- dicarboxylic acids examples include oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, dodecanedioic acid, 2-methylsuccinic acid, 2-methyladipic acid 3-methyladipic acid, 3-methylpentanedioic acid, 2-methyloctanedioic acid, 3,8-dimethyldecanedioic acid, 3,7-dimethyldecanedioic acid, phthalic acid, terephthalic acid, isophthalic acid, naphthalene dicarboxylic acid Examples include acids, trimellitic acid, trimesic acid, cyclohexanedicarboxylic acid and the like. These are used alone or in combination.
- carboxylic acid anhydrides include acetic anhydride, propionic anhydride, succinic anhydride, maleic anhydride, and phthal
- the low-molecular polyol those having 1 to 3 functional groups are preferable, and bifunctional polyols, so-called diols are particularly preferable.
- Polyols can be used alone or in combination. Examples of the diol include ethylene glycol, 1-methylethylene glycol, 1-ethylethylene glycol, propylene glycol, butanediol, pentanediol, hexanediol, heptanediol, octanediol, nonanediol, decanediol, neopentylglycol, 2- Low molecular weight diols such as methyl-1,3-propanediol, cyclohexanedimethanol, 2,4-dimethyl-1,5-pentanediol and 2,4-dibutyl-1,5-pentanediol are included. At least one selected from ethylene glycol, butane
- acrylic polyol refers to a compound obtained by addition polymerization reaction of (meth) acrylate having a hydroxyl group, and has an ester bond in the “side chain”.
- the “acrylic polyol” may be a homopolymer of (meth) acrylate having a hydroxyl group or a copolymer with “other polymerizable monomer”. The hydroxyl group of the acrylic polyol reacts with the isocyanate group.
- Examples of the “(meth) acrylate having a hydroxyl group” include, for example, 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 3-hydroxypropyl (meth) acrylate, glycerin mono (meth) acrylate, 4-hydroxy A butyl acrylate etc. can be illustrated.
- “Other polymerizable monomers” are “radical polymerizable monomers having an ethylenic double bond” other than “(meth) acrylate having a hydroxyl group”. Specifically, (meth) acrylic acid, methyl (meth) acrylate, ethyl (meth) acrylate, butyl (meth) acrylate, cyclohexyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, dicyclopentanyl (meth) Examples include acrylate, isobornyl (meth) acrylate, styrene, vinyltoluene and the like.
- the polyol (a2) having an ester bond may contain a polyether polyol as long as the outdoor urethane adhesive targeted by the present invention can be obtained.
- the polyether polyol include polyoxytetramethylene glycol (PTMG), polyoxypropylene glycol (PPG), and polyoxyethylene glycol (PEG).
- the (A) urethane resin according to the present invention can be obtained by reacting an isocyanate compound (a1) with a polyol (a2) having an ester bond.
- the reaction can be performed by a known method, and can be usually performed by mixing the isocyanate compound (a1) and the polyol (a2) having an ester bond.
- the mixing method is not particularly limited as long as the (A) urethane resin according to the present invention can be obtained.
- (B) hydroxyphenyl triazine-based compound is a kind of triazine derivative, which is a compound in which a hydroxyphenyl derivative is bonded to a carbon atom of the triazine derivative, and is generally a hydroxyphenyl triazine-based compound.
- the outdoor urethane adhesive targeted by the present invention it is not particularly limited.
- Examples of such (B) hydroxyphenyltriazine compounds include compounds represented by the following formulas (1) to (5) and isomers thereof, which are preferred, but are not limited thereto. There is no.
- the (B) hydroxyphenyltriazine compounds of the chemical formulas (1) to (5) are generally used as ultraviolet absorbers, and as long as the outdoor urethane adhesive targeted by the present invention can be obtained, A UV absorber can be used in combination.
- a commercially available hydroxyphenyltriazine compound can be used.
- the product names Tinuvin 400, Tinuvin 405, Tinuvin 479, Tinuvin 477, and Tinuvin 460 are commercially available from BASF Corporation.
- the outdoor urethane adhesive of the present invention preferably further contains (C) a silane compound in addition to the component (A) and the component (B).
- a silane compound for example, (meth) acryloxyalkyltrialkoxysilanes, (meth) acryloxyalkylalkylalkoxysilanes, vinyltrialkoxysilanes, vinylalkylalkoxysilanes, epoxysilanes Mercaptosilanes and isocyanurate silanes can be used, but are not limited to these silane compounds.
- (Meth) acryloxyalkyltrialkoxysilanes include, for example, 3- (meth) acryloxypropyltrimethoxysilane, 3- (meth) acryloxypropyltriethoxysilane, 4- (meth) acryloxyethyltrimethoxy A silane etc. can be illustrated.
- (Meth) acryloxyalkylalkylalkoxysilanes include, for example, 3- (meth) acryloxypropylmethyldimethoxysilane, 3- (meth) acryloxypropylmethyldiethoxysilane, 3- (meth) acryloxypropylethyl Examples include diethoxysilane and 3- (meth) acryloxyethylmethyldimethoxysilane.
- Examples of the “vinyl trialkoxysilanes” include vinyltrimethoxysilane, vinyltriethoxysilane, vinyldimethoxyethoxysilane, vinyltri (methoxyethoxy) silane, vinyltri (ethoxymethoxy) silane and the like.
- vinylalkylalkoxysilanes examples include vinylmethyldimethoxysilane, vinylethyldi (methoxyethoxy) silane, vinyldimethylmethoxysilane, vinyldiethyl (methoxyethoxy) silane, and the like.
- Epoxysilanes can be classified into, for example, glycidyl silanes and epoxycyclohexyl silanes.
- the “glycidyl silane” has a glycidoxy group, and specifically includes, for example, 3-glycidoxypropylmethyldiisopropenoxysilane, 3-glycidoxypropyltrimethoxysilane, 3-glycidoxypropyl.
- Examples include triethoxysilane and 3-glycidoxypropyldiethoxysilane.
- the “epoxycyclohexyl silane” has a 3,4-epoxycyclohexyl group, and specifically includes, for example, 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, 2- (3,4-epoxy (Cyclohexyl) ethyltriethoxysilane and the like.
- Examples of “mercaptosilanes” include 3-mercaptopropyltrimethoxysilane, 3-mercaptopropyltriethoxysilane, and the like.
- Examples of “isocyanurate silanes” include tris (3- (trimethoxysilyl) propyl) isocyanurate.
- These (C) silane compounds can improve the weather resistance of the adhesive containing (B) hydroxyphenyltriazine in addition to improving the peel strength. In the present invention, it is particularly preferable to add epoxy silanes because the performance of the outdoor urethane adhesive is remarkably improved.
- the outdoor urethane adhesive of the present invention preferably further contains at least one selected from (D) a hindered phenol compound and (E) a hindered amine compound.
- the “(D) hindered phenol compound” is generally regarded as a hindered phenol compound, and is not particularly limited as long as the outdoor urethane adhesive targeted by the present invention can be obtained.
- the hindered phenol type compound can use what is marketed.
- As a hindered phenol-type compound brand name IRGANOX1010, IRGANOX1035, IRGANOX1076, IRGANOX1135, IRGANOX1330, IRGANOX1520 etc. can be used, for example.
- the hindered phenol compound is added to the adhesive as an antioxidant, and may be used in combination with, for example, a phosphite antioxidant, a thioether antioxidant, an amine antioxidant, or the like.
- the “(E) hindered amine compound” is generally regarded as a hindered amine compound, and is not particularly limited as long as the outdoor urethane adhesive targeted by the present invention can be obtained.
- a commercially available hindered amine compound can be used.
- As a hindered amine compound for example, tinuvin 765, tinuvin 111FDL, tinuvin 123, tinuvin 144, tinuvin 152, tinuvin 292, and tinuvin 5100 can be used.
- the hindered amine compound is added to the adhesive as a light stabilizer and can be used in combination with, for example, a benzotriazole light stabilizer, a benzoate light stabilizer, a benzotriazole light stabilizer, or the like.
- the outdoor urethane adhesive according to the present invention can further contain other components as long as the desired outdoor urethane adhesive can be obtained.
- the time when the “other components” are added to the outdoor urethane adhesive is not particularly limited as long as the desired outdoor urethane resin is obtained.
- Other components may be added together with the isocyanate compound (a1) and the polyol (a2), for example, when the (A) urethane resin is synthesized. First, the isocyanate compound (a1) and the polyol (a2) are added. And (A) after synthesizing the urethane resin, (B) the hydroxyphenyltriazine compound may be added together.
- Examples of the “other components” include tackifier resins, pigments, plasticizers, flame retardants, catalysts, and waxes.
- examples of the “tackifying resin” include styrene resins, terpene resins, aliphatic petroleum resins, aromatic petroleum resins, rosin esters, acrylic resins, and polyester resins (excluding polyester polyols).
- examples of the “pigment” include titanium oxide and carbon black.
- Examples of the “plasticizer” include dioctyl phthalate, dibutyl phthalate, diisononyl adipate, dioctyl adipate, mineral spirit, and the like.
- examples of the “flame retardant” include halogen flame retardants, phosphorus flame retardants, antimony flame retardants, metal hydroxide flame retardants, and the like.
- Catalysts include metal catalysts such as tin catalysts (trimethyltin laurate, trimethyltin hydroxide, dibutyltin dilaurate, dibutyltin maleate, etc.), lead catalysts (lead oleate, lead naphthenate, lead octenoate, etc.) ), Other metal catalysts (such as naphthenic acid metal salts such as cobalt naphthenate), and amine-based catalysts such as triethylenediamine, tetramethylethylenediamine, tetramethylhexylenediamine, diazabicycloalkenes, dialkylaminoalkylamines, etc. Can be illustrated.
- wax such as paraffin wax and microcrystalline wax is preferable.
- the outdoor urethane adhesive of the present invention is produced by mixing the above-described components (A) and (B), and optionally added components (C), (D), (E) and other components. be able to.
- the mixing method is not particularly limited as long as the outdoor urethane adhesive targeted by the present invention can be obtained.
- the order of mixing the components is not particularly limited.
- the outdoor urethane adhesive according to the present invention can be produced without requiring a special mixing method and a special mixing order.
- the obtained outdoor urethane adhesive is excellent in both adhesive strength and weather resistance. Therefore, it is suitable as an outdoor material application such as a barrier material, a roof material, a solar cell module, a window material, an outdoor flooring material, a lighting protection material, an automobile member, and a signboard.
- These outdoor materials include a laminate in which a plurality of films are bonded together.
- the film include a film in which metal is vapor-deposited on a plastic substrate (metal vapor-deposited film) and a film in which metal is not vapor-deposited (plastic film).
- an adhesive for manufacturing a solar cell module is required to have a particularly high level of strength and weather resistance. Since the outdoor urethane adhesive of the present invention is excellent in both peel strength and weather resistance, it is suitable as an adhesive for solar battery backsheets.
- the outdoor urethane adhesive of the present invention is applied to a film.
- a coating method it can be performed by various methods such as gravure coating, wire bar coating, air knife coating, die coating, lip coating, and comma coating. A plurality of films coated with the outdoor urethane adhesive of the present invention are bonded together to complete a solar battery back sheet.
- FIG. 1 is a cross-sectional view of the solar cell backsheet of the present invention.
- the solar battery back sheet 10 is formed of two films and an outdoor urethane adhesive 13 therebetween, and the two films 11 and 12 are bonded together by the outdoor urethane adhesive 13.
- the films 11 and 12 may be the same material or different materials. In FIG. 1, two films 11 and 12 are bonded together, but three or more films may be bonded together.
- FIG. 2 shows another embodiment of the solar battery back sheet according to the present invention.
- a foil film 11 a is formed between the film 11 and the outdoor urethane adhesive 13.
- the film 11 is a plastic film
- the form in which the metal thin film 11a is formed on the surface of the film 11 is shown.
- the metal thin film 11a can be formed on the surface of the plastic film 11, for example, by vapor deposition.
- the film 11 and the film 12 on which the metal thin film 11a is formed are attached via an outdoor urethane adhesive 13, 2 can be obtained.
- the metal deposited on the plastic film examples include aluminum, steel, and copper.
- barrier properties can be imparted to the film.
- silicon oxide or aluminum oxide is used.
- the base plastic film 11 may be transparent, or may be colored white or black.
- a plastic film made of polyvinyl chloride, polyester, fluororesin, or acrylic resin is used, but a polyethylene terephthalate film or a polybutylene terephthalate film is used to impart heat resistance, weather resistance, rigidity, insulation, and the like. It is particularly preferred.
- the films 11 and 12 may be transparent or colored.
- the deposited thin film 11a and the film 12 of the film 11 are attached using the outdoor urethane adhesive 13 of the present invention, and the films 11 and 12 are often laminated by a dry laminating method.
- FIG. 3 shows a cross-sectional view of an example of the solar cell module of the present invention.
- the solar cell module 1 of the present invention generates a desired voltage by connecting a glass plate 40, a sealing material 20 such as ethylene vinyl acetate resin (EVA), generally a plurality of solar cells 30,
- EVA ethylene vinyl acetate resin
- These members 10, 20, 30 and 40 can be obtained by overlapping the back sheet 10 and fixing them with the spacer 50.
- the back sheet 10 is a laminate of a plurality of films 11 and 12, even if the back sheet 10 is exposed to the outdoors for a long period of time, the films 11 and 12 do not peel off. Is required.
- the solar cell 30 is often manufactured using silicon, but may also be manufactured using an organic resin containing a pigment.
- the solar cell module 1 is an organic (dye-sensitized) solar cell module. Since organic (pigment-sensitized) solar cells are required to be colored, transparent films are often used as the films 11 and 12 constituting the solar cell backsheet 10. Therefore, the solar cell backsheet adhesive 13 is required to have extremely small color difference change and excellent weather resistance even when exposed outdoors for a long period of time.
- a urethane resin obtained by reacting an isocyanate compound (a1) with a polyol (a2) having an ester bond, and (B) a hydroxyphenyltriazine compound,
- the isocyanate compound (a1) is an outdoor urethane adhesive containing at least one selected from aliphatic isocyanates and alicyclic isocyanates.
- 3. The outdoor urethane adhesive according to 1 or 2, further comprising a silane compound. 4). 4.
- the outdoor urethane adhesive according to any one of the above 1 to 4 further comprising a hindered amine compound. 6).
- a solar battery back sheet obtained using the outdoor urethane adhesive according to any one of 1 to 5 above.
- a solar cell module obtained by using the solar cell backsheet described in 6 above.
- A2 Polyol having an ester bond (a2-1) Polyester polyol (Polyol component of PES229 (trade name) manufactured by Asahikawa Chemical Co., Ltd.) (Polyester polyol consisting of adipic acid, isophthalic acid, phthalic anhydride, diethylene glycol, PPG400, trimethylolpropane) (A2-2) Polyester polyol (Polyol component of PES8001 (trade name) manufactured by Asahikawa Chemical) (Polyester polyol consisting of sebacic acid, terephthalic acid, hexanediol, methylpentanediol) (A2-3) Polyester polyol (HS 2N-226P (trade name) manufactured by Toyokuni Oil) (Polyester polyol consisting of phthalic anhydride and 2,4-dibutyl-1,5-pentanediol) (A2-4) Acrylic polyol (OG3 (trade name) manufactured by Soken Chemical Co.
- (A) urethane resin which concerns on this invention is obtained because a component (a1) and a component (a2) react.
- B Hydroxyphenyltriazine UV absorber (B1) Hydroxyphenyltriazine (TINUVIN 479 (trade name) manufactured by BASF) 2- [4- (Octyl-2-methylethanoate) oxy-2-hydroxyphenyl] -4,6- [bis (2,4-dimethylphenyl)]-1,3,5-triazine (B2) Hydroxyphenyl Triazine (TINUVIN 400 (trade name) manufactured by BASF) 2- [4- (2-hydroxy-3-dodecyloxy-propyl) oxy-2-hydroxyphenyl] -4,6- [bis (2,4-dimethylphenyl) -1,3,5-triazine and 2- [ 4- (2-hydroxy-3-tridecyloxy-propyl) oxy-2-hydroxyphenyl] -4,6- [bis (2,4-dimethylphenyl) -1,3,5-triazine mixture (B3) hydroxyphenyl Triazine (Tinbin
- C Silane compound (C1) Epoxy silane (Dynasilane GLYEO (trade name) manufactured by Evonik Degussa) 3-Glycidoxypropyltriethoxysilane (C2) Epoxysilane (Dynasilane GLYMO (trade name) manufactured by Evonik Degussa) 3-Glycidoxypropyltrimethoxysilane (C3) Epoxysilane (Silaace S530 (trade name) manufactured by Chisso) 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane (C4) isocyanurate silane (Silquest Y-11597 (trade name) manufactured by Momentive) Tris (3- (trimethoxysilyl) propyl) isocyanurate (C5) Mercaptosilane (Silaace S810 (trade name) manufactured by Chisso Corporation) 3-mercaptopropyltrimethoxysilane
- Example 1 Manufacture of outdoor urethane adhesive> As shown in Table 1, (A1-1) 13.16 g of Sumidur N3300 (trade name) manufactured by Sumika Bayer Urethane Co., Ltd. (A2-1) 86.84 g of PES229 (trade name) manufactured by Asahikawa Chemical Co., Ltd. (B1) 0.50 g of Tinuvin 479 (trade name) manufactured by BASF (D1) 0.20 g of Irganox 1330 (trade name) manufactured by BASF Were weighed and mixed, and then ethyl acetate was added to these mixtures to prepare a 30% solids solution. This preparation solution was used as an outdoor urethane adhesive, and the following tests were conducted.
- the outdoor urethane adhesive of Example 1 was applied to a transparent polyethylene terephthalate (PET) sheet (O300EW36 (trade name) manufactured by Mitsubishi Chemical Polyester Film Co., Ltd.) so that the solid weight would be 10 g / m 2. Dry at 10 ° C. for 10 minutes. Thereafter, the surface of the PET sheet adhesive-coated surface was covered with a surface-treated transparent polyolefin film (Linear Low Density Polyethylene Film LL-XUMN # 30 (trade name) manufactured by Futamura Chemical Co., Ltd.), and a flat press machine ( Both films were pressed with ASF-5 (trade name) manufactured by Shindo Metal Industry Co., Ltd. at a pressing pressure of 1.0 MPa at 50 ° C. for 30 minutes. While pressed, both films were cured at 40 ° C. for 1 week to obtain a film laminate 1.
- PET polyethylene terephthalate
- the outdoor urethane adhesive was evaluated by the following method. 1. Evaluation of yellowing due to UV irradiation The polyolefin film side of the film laminate 1 is set as an irradiation surface and set in a UV irradiation tester (ISUPA UV Tester W13 (trade name) manufactured by Iwasaki Electric Co., Ltd.) with an illuminance of 1000 W / m 2. Irradiation was performed at 60 ° C. and 50% RH for 15 hours. The color difference ( ⁇ b) before and after irradiation was measured with a color difference meter, and the degree of yellowing was evaluated. The evaluation criteria are as follows. ⁇ : ⁇ b is less than 10 ⁇ : ⁇ b is 10 or more and less than 15 ⁇ : ⁇ b is 15 or more
- Example 2 to 23 and Comparative Examples 1 to 9 the components were blended in the compositions described in Tables 1 to 4, and an outdoor urethane adhesive was produced in the same manner as in Example 1. Production and evaluation methods of the film laminate 1 and the film laminate 2 were also performed in the same manner as in Example 1.
- the outdoor urethane adhesives of Examples 1 to 25 are excellent in peel strength by containing the three components of component (a1), component (a2) and component (B), and It is also excellent in weather resistance and is a well-balanced adhesive.
- the outdoor urethane adhesive of an Example is an adhesive suitable as an adhesive for solar cell backsheets by being excellent in both performances.
- the outdoor urethane adhesives of Examples 8, 14, 20, 22, and 25 are excellent in peel strength, small in color difference change, and remarkably excellent in weather resistance. Therefore, for an organic (dye sensitized) solar cell backsheet. It is more suitable as an adhesive.
- the outdoor urethane adhesives of Comparative Examples 1 to 9 shown in Table 4 do not contain any of the three components of component (a1), component (a2) and component (B). By lacking any of these three components, the outdoor urethane adhesive of the comparative example is inferior to the examples in terms of either peel strength or weather resistance.
- the present invention provides an outdoor urethane adhesive.
- the outdoor urethane adhesive according to the present invention is used for outdoor materials such as barrier materials, roofing materials, solar cell modules, window materials, outdoor flooring materials, lighting protection materials, automobile members, signboards, etc., and particularly solar cell backsheets. Suitable for manufacturing.
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Abstract
Description
(A)イソシアネート化合物(a1)とエステル結合を有するポリオール(a2)が反応して得られるウレタン樹脂及び
(B)ヒドロキシフェニルトリアジン系化合物
を含んで成り、
前記イソシアネート化合物(a1)は、脂肪族イソシアネート及び脂環式イソシアネートから選択される少なくとも1種を含む、屋外用ウレタン接着剤を提供する。
本発明は、他の態様において、シラン化合物を、更に含んで成る屋外用ウレタン接着剤を提供する。
本発明は、更なる態様において、ヒンダーアミン系化合物を、更に含んで成る屋外用ウレタン接着剤を提供する。
本発明は、好ましい要旨において、上記太陽電池バックシートを用いて得られる太陽電池モジュールを提供する。
(A)イソシアネート化合物(a1)とエステル結合を有するポリオール(a2)が反応して得られるウレタン樹脂及び
(B)ヒドロキシフェニルトリアジン系化合物
を含んで成り、
前記イソシアネート化合物(a1)は、脂肪族イソシアネート及び脂環式イソシアネートから選択される少なくとも1種を含むので、
剥離強度及び耐候性の両方の性能が向上して、太陽電池バックシート用接着剤として適する接着剤になる。特に、有機系太陽電池バックシートには着色性及び柔軟性が要求されるので、本発明の屋外用ウレタン接着剤は、有機系太陽電池バックシート用接着剤としてより好ましい。
本発明の屋外用ウレタン接着剤は、更に、ヒンダードフェノール系化合物を含むことで、耐候性がより向上し、太陽電池バックシート用接着剤としてより適切な接着剤となる。
本発明の屋外用ウレタン接着剤は、更に、ヒンダーアミン系化合物を含むことで、ヒドロキシフェニルトリアジンとの相乗効果によって耐候性が向上し、太陽電池バックシート用接着剤としてより好ましく使用することができる。
近年、光吸収層に有機化合物を用いた有機系太陽電池が開発されており、有機系太陽電池に着色性や柔軟性を持たせることが要求されている。従って、有機系太陽電池のバックシートを構成するフィルムが透明化する傾向があるので、色差変化が小さい本発明の太陽電池バックシートは、かかる点からも有用である。
本発明に係る太陽電池モジュールは、上記太陽電池バックシートを用いて得られるので、外観に優れ、更に耐久性能にも優れる。
本発明に係る(A)ウレタン樹脂は、イソシアネート化合物(a1)と、エステル結合を有するポリオール(a2)の反応によって得られるポリマーであって、ウレタン結合を有する。
本発明に係る「イソシアネート化合物(a1)」は、脂肪族イソシアネート及び脂環式イソシアネートのみから構成されることを意味しない。本発明が目的とする屋外用ウレタン接着剤を得られる限り、即ち、本発明の屋外用ウレタン接着剤の剥離強度及び耐候性に悪影響を与えない範囲で、イソシアネート化合物(a1)は、芳香族イソシアネートを含んでもよい。尚、イソシアネート化合物(a1)は、耐候性の観点から、エチレン性二重結合(例えば、エチレン基、ブチレン基等)を含まないことが好ましい。
尚、本明細書では、芳香環は環状の炭化水素鎖に含まれない。
「脂環式イソシアネート」とは、環状の炭化水素鎖を有し、鎖状の炭化水素鎖を有してよい化合物である。イソシアネート基は、環状の炭化水素鎖と直接結合しても、有し得る鎖状の炭化水素鎖と直接結合してもよい。「脂環式イソシアネート」は、芳香環を有してもよいが、その芳香環と、イソシアネート基は、直接結合していない。
従って、例えば、4,4’-ジフェニルメタンジイソシアネート(OCN-C6H4-CH2-C6H4-NCO)は、イソシアネート基が芳香環に直接結合しているので、芳香族イソシアネートに該当する。一方、例えば、キシリレンジイソシアネート(OCN-CH2-C6H4-CH2-NCO)は、芳香環を有するが、イソシアネート基が芳香環に直接結合せず、メチレン基と結合しているので、脂肪族イソシアネートに該当する。
尚、芳香環は、二つ以上のベンゼン環が縮環していてもよい。
脂環式イソシアネートとしては、例えば、5-イソシアナト-1-イソシアナトメチル-1,3,3-トリメチルシクロヘキサン(イソホロンジイソシアネート)、1,3-ビス(イソシアナトメチル)シクロヘキサン(水添キシリレンジイソシアネート)、ビス(4-イソシアナトシクロヘキシル)メタン(水添ジフェニルメタンジイソシアネート)、1,4-ジイソシアナトシクロヘキサン等を例示できる。
これらのイソシアネート化合物は、単独で又は組み合わせて使用することができる。特に、HDI、イソホロンジイソシアネート及びキシリレンジイソシアネートが好ましく、特に、HDIの3量体、イソホロンジイソシアネートの3量体及びキシリレンジイソシアネートの単量体が好ましい。
ポリエステルポリオールは、一般に、低分子ポリオールと、ジカルボン酸及びその無水物との縮合重合反応によって得られる。
カルボン酸無水物として、例えば、無水酢酸、無水プロピオン酸、無水コハク酸、無水マレイン酸、無水フタル酸が挙げられる。これらは、単独で用いても、複数種類を用いても良い。
ジオールとして、例えば、エチレングリコール、1-メチルエチレングリコール、1-エチルエチレングリコール、プロピレングリコール、ブタンジオール、ペンタンジオール、ヘキサンジオール、ヘプタンジオール、オクタンジオール、ノナンジオール、デカンジオール、ネオペンチルグリコール、2-メチル-1,3-プロパンジオール、シクロヘキサンジメタノール、2,4-ジメチル-1,5-ペンタンジオール、2,4-ジブチル-1,5-ペンタンジオール等の低分子量ジオールが含まれる。エチレングリコール、ブタンジオール、ヘキサンジオール、オクタンジオール及びデカンジオールから選択される少なくとも一種が好ましい。
「アクリルポリオール」は、水酸基を有する(メタ)アクリレートの単独重合体でも、「その他の重合性単量体」との共重合体であってもよい。アクリルポリオールの水酸基がイソシアネート基と反応する。
「水酸基を有する(メタ)アクリレート」として、例えば、2-ヒドロキシエチル(メタ)アクリレート、2-ヒドロキシプロピル(メタ)アクリレート、3-ヒドロキシプロピル(メタ)アクリレート、グリセリンモノ(メタ)アクリレート、4-ヒドロキシブチルアクリレート等を例示できる。
本発明では、(C)シラン化合物として、例えば、(メタ)アクリロキシアルキルトリアルコキシシラン類、(メタ)アクリロキシアルキルアルキルアルコキシシラン類、ビニルトリアルコキシシラン類、ビニルアルキルアルコキシシラン類、エポキシシラン類、メルカプトシラン類及びイソシアヌレートシラン類を用いることができるが、これらのシラン化合物のみに限定されることはない。
「(メタ)アクリロキシアルキルアルキルアルコキシシラン類」として、例えば、3-(メタ)アクリロキシプロピルメチルジメトキシシラン、3-(メタ)アクリロキシプロピルメチルジエトキシシラン、3-(メタ)アクリロキシプロピルエチルジエトキシシラン、3-(メタ)アクリロキシエチルメチルジメトキシシラン等を例示できる。
「ビニルトリアルコキシシラン類」として、例えば、ビニルトリメトキシシラン、ビニルトリエトキシシラン、ビニルジメトキシエトキシシラン、ビニルトリ(メトキシエトキシ)シラン、ビニルトリ(エトキシメトキシ)シラン等が例示できる。
「エポキシシラン類」は、例えば、グリシジル系シラン及びエポキシシクロヘキシル系シランに分類できる。「グリシジル系シラン」は、グリシドキシ基を有するもので、具体的には、例えば、3-グリシドキシプロピルメチルジイソプロペノキシシラン、3-グリシドキシプロピルトリメトキシシラン、3-グリシドキシプロピルトリエトキシシラン、3-グリシドキシプロピルジエトキシシラン等を例示できる。
「エポキシシクロヘキシル系シラン」は、3,4-エポキシシクロヘキシル基を有するもので、具体的には、例えば、2-(3,4-エポキシシクロヘキシル)エチルトリメトキシシラン、2-(3,4-エポキシシクロヘキシル)エチルトリエトキシシラン等を例示できる。
「イソシアヌレートシラン類」として、例えば、トリス(3-(トリメトキシシリル)プロピル)イソシアヌレート等を例示できる。
これら(C)シラン化合物は、剥離強度を向上させることに加え、(B)ヒドロキシフェニルトリアジンが含まれた接着剤の耐候性を向上させることができる。本発明では、特に、エポキシシラン類を添加すると、屋外用ウレタン接着剤の性能が著しく向上するので好ましい。
「(D)ヒンダードフェノール系化合物」とは、一般にヒンダードフェノール系化合物とされるものであり、本発明が目的とする屋外用ウレタン接着剤を得られる限り、特に制限されるものではない。
(D)ヒンダードフェノール系化合物は、市販されているものを使用することができる。(D)ヒンダードフェノール系化合物として、例えば、商品名IRGANOX1010、IRGANOX1035、IRGANOX1076、IRGANOX1135、IRGANOX1330及びIRGANOX1520等を使用することができる。ヒンダードフェノール系化合物は、酸化防止剤として接着剤に添加され、例えば、ホスファイト系酸化防止剤、チオエーテル系酸化防止剤、アミン系酸化防止剤等と組み合わせて使用してもよい。
(E)ヒンダードアミン系化合物は、市販されているものを使用することができる。(E)ヒンダードアミン系化合物として、例えば、チヌビン765、チヌビン111FDL、チヌビン123、チヌビン144、チヌビン152、チヌビン292及びチヌビン5100等を使用することができる。ヒンダードアミン系化合物は、光安定剤として接着剤に添加され、例えば、ベンゾトリアゾール系光安定剤、ベンゾエート系光安定剤、ベンゾトリアゾール系光安定剤等と組み合わせて使用することができる。
「その他の成分」を、屋外用ウレタン接着剤に添加する時期は、目的とする屋外用ウレタン樹脂が得られる限り、特に制限されるものではない。その他の成分は、例えば、(A)ウレタン樹脂を合成する際に、イソシアネート化合物(a1)及びポリオール(a2)と一緒に添加しても良く、また、まずイソシアネート化合物(a1)とポリオール(a2)とを反応させて(A)ウレタン樹脂を合成した後、(B)ヒドロキシフェニルトリアジン系化合物を加えるときに、一緒に添加してもよい。
「粘着付与樹脂」として、例えば、スチレン系樹脂、テルペン系樹脂、脂肪族石油樹脂、芳香族石油樹脂、ロジンエステル、アクリル樹脂及びポリエステル樹脂(ポリエステルポリオールを除く)等を例示できる。
「顔料」として、例えば、酸化チタン及びカーボンブラック等を例示できる。
「可塑剤」として、例えば、ジオクチルフタレート、ジブチルフタレート、ジイソノニルアジペート、ジオクチルアジペート及びミネラルスピリット等を例示できる。
「難燃剤」として、例えば、ハロゲン系難燃剤、リン系難燃剤、アンチモン系難燃剤及び、金属水酸化物系難燃剤等を例示できる。
「ワックス」として、パラフィンワックスやマイクロクリスタリンワックス等のワックスが好ましい。
従って、防壁材、屋根材、太陽電池モジュール、窓材、屋外フローリング材、照明保護材、自動車部材、看板等の屋外材料用途として好適である。これらの屋外材料は、複数のフィルムが貼り合わされた積層体を含んでいる。フィルムとしては、プラスチック基材に金属が蒸着されたフィルム(金属蒸着フィルム)、金属が蒸着されていないフィルム(プラスチックフィルム)がある。
太陽電池バックシートを作製する際には、本発明の屋外用ウレタン接着剤をフィルムへ塗布する。塗布方法としては、グラビアコート、ワイヤーバーコート、エアナイフコート、ダイコート、リップコート、コンマコートなどの様々な方法により行うことができる。本発明の屋外用ウレタン接着剤が塗布された複数のフィルムを貼り合わせ、太陽電池バックシートが完成する。
図1は、本発明の太陽電池バックシートの断面図である。太陽電池バックシート10は、2枚のフィルムとその間の屋外用ウレタン接着剤13から形成されており、2枚のフィルム11及び12は、屋外用ウレタン接着剤13によって貼り合わされている。フィルム11及び12は、同一の材料であっても、異なる材料であってもよい。図1では、2枚のフィルム11及び12は、貼り合わされているが、3枚以上のフィルムが貼り合わされていてもよい。
フィルム12として、ポリ塩化ビニル、ポリエステル、フッ素樹脂、アクリル樹脂から成るプラスチックフィルムが用いられるが、耐熱性、耐候性及び剛性、絶縁性等を付与するためにポリエチレンテレフタレートフィルムやポリブチレンテレフタレートフィルムを用いることが特に好ましい。フィルム11及び12は、透明でも、着色されても良い。
フィルム11の蒸着薄膜11aとフィルム12とは、本発明の屋外用ウレタン接着剤13を用いて貼り付けられるが、フィルム11及び12は、ドライラミネート法によって積層されることが多い。
バックシート10は、上述したように、複数のフィルム11及び12の積層体なので、ウレタン接着剤13には、バックシート10が、たとえ長期間屋外に曝されても、フィルム11及び12が剥離しないことが要求される。
1.(A)イソシアネート化合物(a1)とエステル結合を有するポリオール(a2)が反応して得られるウレタン樹脂及び
(B)ヒドロキシフェニルトリアジン系化合物
を含んで成り、
前記イソシアネート化合物(a1)は、脂肪族イソシアネート及び脂環式イソシアネートから選択される少なくとも1種を含む、屋外用ウレタン接着剤。
2.ポリオール(a2)は、ポリエステルポリオール及びアクリルポリオールから選択される少なくとも1種を含んで成る上記1に記載の屋外用ウレタン接着剤。
3.シラン化合物を、更に含んで成る上記1又は2に記載の屋外用ウレタン接着剤。
4.ヒンダードフェノール系化合物を、更に含んで成る上記1~3のいずれかに記載の屋外用ウレタン接着剤。
5.ヒンダーアミン系化合物を、更に含んで成る上記1~4のいずれかに記載の屋外用ウレタン接着剤。
6.上記1~5のいずれかに記載の屋外用ウレタン接着剤を用いて得られる太陽電池バックシート。
7.上記6に記載の太陽電池バックシートを用いて得られる太陽電池モジュール。
実施例及び比較例で使用した屋外用ウレタン接着剤の原料を以下に記載する。
(a1-1)脂肪族イソシアネート:1,6-ジイソシアナトヘキサン(HDI)
(住化バイエルウレタン社製のスミジュールN3300(商品名))
(HDI イソシアヌレート3量体(脂肪族)、NCO%=21.8%)
(a1-2)脂環式イソシアネート:イソホロンジイソシアネート(IPDI)
(エボニックデグサ社製のVESTANATT1890(商品名))
(IPDIイソシアヌレート3量体(脂環式)、NCO%=17.3%)
(a1-3)脂肪族イソシアネート:キシリレンジイソシアネート(XDI)
(三井化学社製のタケネート500(商品名))
(XDI(脂肪族)、NCO%=44.7%)
(a1’-4)4,4’-ジフェニルメタンジイソシアネート(MDI)
(日本ポリウレタン社製のミリオネートMT(商品名))
(MDI(芳香族)、NCO%=33.6%)
(a1’-5)フェニルイソシアネート(東京化成工業社製)
(フェニルイソシアネート(芳香族)、NCO=35.3%)
(a2-1)ポリエステルポリオール
(旭川化学社製のPES229(商品名)のポリオール成分)
(アジピン酸、イソフタル酸、無水フタル酸、ジエチレングリコール、PPG400、トリメチロールプロパンからなるポリエステルポリオール)
(a2-2)ポリエステルポリオール
(旭川化学社製のPES8001(商品名)のポリオール成分)
(セバシン酸、テレフタル酸、ヘキサンジオール、メチルペンタンジオールからなるポリエステルポリオール)
(a2-3)ポリエステルポリオール
(豊国製油社製のHS 2N-226P(商品名))
(無水フタル酸、2,4-ジブチル-1,5-ペンタンジオールからなるポリエステルポリオール)
(a2-4)アクリルポリオール
(綜研化学社製のOG3(商品名))
(n-ブチルメタクリレート、イソブチルメタクリレート、メチルメタクリレート、2-ヒドロキシエチルメタクリレートからなるアクリルポリオール)
(a2-5)アクリルポリオール
(エストロンケミカル社製のイソクリルH270(商品名))
(メチルメタクリレート、ブチルメタクリレート、2-ヒドロキシエチルメタクリレート、メタクル酸からなるアクリルポリオール)
(a2’-6)ポリエーテルポリオール
(第一工業製薬社製のハイフレックスD2000(商品名))
(PPG2000)
尚、成分(a1)と成分(a2)が反応することで、本発明に係る(A)ウレタン樹脂が得られる。
(B1)ヒドロキシフェニルトリアジン
(BASF社製のチヌビン479(商品名))
2-[4-(オクチル-2-メチルエタノエート)オキシ-2-ヒドロキシフェニル]-4,6-[ビス(2,4-ジメチルフェニル)]-1,3,5-トリアジン
(B2)ヒドロキシフェニルトリアジン
(BASF社製のチヌビン400(商品名))
2-[4-(2-ヒドロキシ-3-ドデシロキシ-プロピル)オキシ-2-ヒドロキシフェニル]-4,6-[ビス(2,4-ジメチルフェニル)-1,3,5-トリアジン及び2-[4-(2-ヒドロキシ-3-トリデシロキシ-プロピル)オキシ-2-ヒドロキシフェニル]-4,6-[ビス(2,4-ジメチルフェニル)-1,3,5-トリアジンの混合物
(B3)ヒドロキシフェニルトリアジン
(BASF社製のチヌビン405(商品名))
2-(2,4-ジヒドロキシフェニル)-4,6-ビス-(2,4-ジメチルフェニル)-1,3,5-トリアジンと(2-エチルヘキシル)-グリシド酸エステルの反応生成物
(B4)ヒドロキシフェニルトリアジン
(BASF社製のチヌビン460(商品名))
2,4-ビス[2-ヒドロキシ-4-ブトキシフェニル]-6-(2,4-ジブトキシフェニル)-1,3-5-トリアジン
(B5)ヒドロキシフェニルトリアジン
(BASF社製のチヌビン477(商品名))
トリス[2,4,6-[2-{4-(オクチル-2-メチルエタノエート)オキシ-2-ヒドロキシフェニル}]-1,3,5-トリアジン
(B6’)ベンゾトリアゾール
(BASF社製のチヌビン328(商品名))
2-(3,5-ジ-tert-アミル-2-ヒドロキシフェニル)ベンゾトリアゾール
(B7’)ベンゾトリアゾール
(BASF社製のチヌビン234(商品名))
2-[2-ヒドロキシ-3,5-ビス(α,α-ジメチルベンジル)フェニル]-2H-ベンゾトリアゾール
(B8’)ベンゾトリアゾール
(SHUANG-BANG INDUSTRIAL CO., LTD製のSB-UVA626SP(商品名))
2-(3’-t-ブチル-2’-ヒドロキシ-5’-メチルフェニル)-5-クロロベンゾトリアゾール
(B9’)シュウ酸アニリド
(クラリアントジャパン社製のHostavin PR-25(商品名))
[(4-メトキシフェニル)-メチレン]マロン酸-ジメチルエステル
(B10’)マロン酸エステル
(クラリアントジャパン社製のHostavin B-CAP(商品名))
テトラエチル-2,2’-(1,4-フェニレン-ジメチリデン)-ビスマロネート
(C1)エポキシシラン
(エボニックデグサ社製のダイナシランGLYEO(商品名))
3-グリシドキシプロピルトリエトキシシラン
(C2)エポキシシラン
(エボニックデグサ社製のダイナシランGLYMO(商品名))
3-グリシドキシプロピルトリメトキシシラン
(C3)エポキシシラン
(チッソ社製のサイラエースS530(商品名))
2-(3,4-エポキシシクロヘキシル)エチルトリメトキシシラン
(C4)イソシアヌレートシラン
(モメンティブ社製のSilquest Y-11597(商品名))
トリス(3-(トリメトキシシリル)プロピル)イソシアヌレート
(C5)メルカプトシラン
(チッソ社製のサイラエースS810(商品名))
3-メルカプトプロピルトリメトキシシラン
(D1)ヒンダードフェノール
(BASF社製のイルガノックス1330(商品名))
1,3,5-トリメチル-2,4,6-トリス(3,5-ジ-t-ブチル-4-ヒドロキシベンジル)ベンゼン
(E)光安定剤
(E1)ヒンダードアミン
(BASF社製のチヌビン765(商品名))
セバシン酸ビス(1,2,2,6,6-ペンタメチル-4-ピペリジル)
下記の実施例1~23及び比較例1~9の屋外用ウレタン接着剤を、上記成分を用いて製造し、得られた屋外用ウレタン接着剤の性能を、評価した。以下に製造方法及び評価方法を示す。
<屋外用ウレタン接着剤の製造>
表1に示すように、
(a1-1)住化バイエルウレタン社製のスミジュールN3300(商品名)を13.16g、
(a2-1)旭川化学社製のPES229(商品名)を樹脂分として86.84g、
(B1)BASF社製のチヌビン479(商品名)を0.50g、
(D1)BASF社製のイルガノックス1330(商品名)を0.20g
を秤量して混合した後、これら混合物に酢酸エチルを添加して固形分30%の溶液を調製した。この調製液を屋外用ウレタン接着剤とし、以下の試験を行った。
先ず、実施例1の屋外用ウレタン接着剤を透明ポリエチレンテレフタレート(PET)シート(三菱化学ポリエステルフィルム社製のO300EW36(商品名))に固形分重量が10g/m2となるように塗布し、80℃で10分間乾燥させた。
その後、PETシートの接着剤塗布面に、表面処理透明ポリオレフィンフィルム(フタムラ化学社製のリニアローデンシティポリエチレンフィルム LL-XUMN #30(商品名))の表面処理された面を被せ、平面プレス機(神藤金属工業社製のASF-5(商品名))で圧締圧1.0MPa 50℃で30分間、両フィルムをプレスした。プレスしたまま、両フィルムを40℃で1週間養生し、フィルム積層物1とした。
実施例1の屋外用ウレタン接着剤を白色PET(東レ社製のルミラー#100-E20(商品名))に固形分重量が10g/m2となるように塗布し、80℃で10分間乾燥させた。
その後、PETシートの接着剤塗布面に、透明PETフィルム(三菱樹脂社製のテックバリアVグレード(商品名))の表面処理面を被せ、平面プレス機で圧締圧1.0MPa 50℃で30分間、両フィルムをプレスした。プレスしたまま、両フィルムを40℃で1週間養生し、フィルム積層物2とした。
屋外用ウレタン接着剤の評価を以下の方法で行った。
1.UV照射による黄変性の評価
フィルム積層物1のポリオレフィンフィルム側を照射面として、UV照射試験機(岩崎電気社製のアイスーパーUVテスター W13(商品名)))にセットし、照度1000W/m2、60℃50%RHの条件下で15時間の照射を行った。色差計にて照射前後の色差(Δb)を測定し、黄変度を評価した。評価基準は以下のとおりである。
◎:Δbが10未満
○:Δbが10以上 15未満
×:Δbが15以上
フィルム積層物2を、150℃オーブン(シミズ社製のPSFS-50(商品名))に投入し、7日間の静置養生を行った。色差計にて照射前後の色差(Δb)を測定し、黄変度を評価した。評価基準は以下のとおりである。
◎:Δbが13未満
○:Δbが13以上 23未満
×:Δbが23以上
フィルム積層物1を15mm幅に切り出し、引っ張り強度試験機(オリエンテック社製のテンシロンRTM-250(商品名))を用いて、室温環境下、100mm/min、引っ張り速度180°の剥離試験を行った。評価基準は以下のとおりである。
◎:剥離強度が8N/15mm以上
○:剥離強度が6N/15mm以上8N/15mm未満
×:剥離強度が6N/15mm未満
[関連出願]
尚、本出願は、2010年11月29日に日本国でされた出願番号2010-265365を基礎出願とするパリ条約第4条に基づく優先権を主張する。この基礎出願の内容は、参照することによって、本明細書に組み込まれる。
10 バックシート
11 フィルム
11a 蒸着薄膜
12 フィルム
13 接着剤層
20 封止材(EVA)
30 太陽電池セル
40 ガラス板
50 スペーサ
Claims (4)
- (A)イソシアネート化合物(a1)とエステル結合を有するポリオール(a2)が反応して得られるウレタン樹脂及び
(B)ヒドロキシフェニルトリアジン系化合物
を含んで成り、
前記イソシアネート化合物(a1)は、脂肪族イソシアネート及び脂環式イソシアネートから選択される少なくとも1種を含む、屋外用ウレタン接着剤。 - シラン化合物を、更に含んで成る請求項1に記載の屋外用ウレタン接着剤。
- 請求項1又は2に記載の屋外用ウレタン接着剤を用いて得られる太陽電池バックシート。
- 請求項3に記載の太陽電池バックシートを用いて得られる太陽電池モジュール。
Priority Applications (4)
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EP11845169.9A EP2647684A1 (en) | 2010-11-29 | 2011-11-28 | Urethane adhesive for outdoor use |
KR1020137013604A KR20130141556A (ko) | 2010-11-29 | 2011-11-28 | 옥외용 우레탄 접착제 |
CN2011800573135A CN103459541A (zh) | 2010-11-29 | 2011-11-28 | 室外用聚氨酯粘合剂 |
US13/898,703 US20130317136A1 (en) | 2010-11-29 | 2013-05-21 | Outdoor urethane adhesive |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010265365A JP2012116880A (ja) | 2010-11-29 | 2010-11-29 | 屋外用ウレタン接着剤 |
JP2010-265365 | 2010-11-29 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/898,703 Continuation US20130317136A1 (en) | 2010-11-29 | 2013-05-21 | Outdoor urethane adhesive |
Publications (1)
Publication Number | Publication Date |
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WO2012073859A1 true WO2012073859A1 (ja) | 2012-06-07 |
Family
ID=46171791
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PCT/JP2011/077316 WO2012073859A1 (ja) | 2010-11-29 | 2011-11-28 | 屋外用ウレタン接着剤 |
Country Status (6)
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---|---|
US (1) | US20130317136A1 (ja) |
EP (1) | EP2647684A1 (ja) |
JP (1) | JP2012116880A (ja) |
KR (1) | KR20130141556A (ja) |
CN (1) | CN103459541A (ja) |
WO (1) | WO2012073859A1 (ja) |
Cited By (1)
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WO2014030522A1 (ja) * | 2012-08-24 | 2014-02-27 | 東洋アルミニウム株式会社 | 太陽電池裏面保護シート |
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JP5841893B2 (ja) * | 2012-04-23 | 2016-01-13 | ヘンケルジャパン株式会社 | 積層シート用接着剤 |
JP6194190B2 (ja) * | 2013-05-16 | 2017-09-06 | ヘンケルジャパン株式会社 | 太陽電池保護シート用接着剤 |
CN104263258B (zh) * | 2014-09-18 | 2016-05-04 | 东莞市雄林新材料科技股份有限公司 | 一种太阳能电池用tpu薄膜及其制备方法 |
JP6750271B2 (ja) * | 2016-03-29 | 2020-09-02 | 東洋インキScホールディングス株式会社 | 太陽電池用アンカーコート剤、保護材、および太陽電池モジュール |
CN109321181A (zh) * | 2018-08-29 | 2019-02-12 | 佛山皖和新能源科技有限公司 | 一种防水型太阳能背板胶 |
JP7508915B2 (ja) | 2020-07-16 | 2024-07-02 | 大日本印刷株式会社 | 金属端子用接着性フィルム、金属端子用接着性フィルム付き金属端子、接着性フィルム付き金属端子、当該金属端子用接着性フィルムを用いた接着性フィルム付き金属端子の製造方法、当該金属端子用接着性フィルムを用いた蓄電デバイス、及び蓄電デバイスの製造方法 |
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-
2010
- 2010-11-29 JP JP2010265365A patent/JP2012116880A/ja active Pending
-
2011
- 2011-11-28 EP EP11845169.9A patent/EP2647684A1/en not_active Withdrawn
- 2011-11-28 WO PCT/JP2011/077316 patent/WO2012073859A1/ja active Application Filing
- 2011-11-28 KR KR1020137013604A patent/KR20130141556A/ko not_active Application Discontinuation
- 2011-11-28 CN CN2011800573135A patent/CN103459541A/zh active Pending
-
2013
- 2013-05-21 US US13/898,703 patent/US20130317136A1/en not_active Abandoned
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WO2014030522A1 (ja) * | 2012-08-24 | 2014-02-27 | 東洋アルミニウム株式会社 | 太陽電池裏面保護シート |
JP2014044996A (ja) * | 2012-08-24 | 2014-03-13 | Toyo Aluminium Kk | 太陽電池裏面保護シート |
CN104584235A (zh) * | 2012-08-24 | 2015-04-29 | 东洋铝株式会社 | 太阳电池背面保护片 |
US9685572B2 (en) | 2012-08-24 | 2017-06-20 | Toyo Aluminium Kabushiki Kaisha | Protective sheet for rear surface of solar cell |
Also Published As
Publication number | Publication date |
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EP2647684A1 (en) | 2013-10-09 |
JP2012116880A (ja) | 2012-06-21 |
KR20130141556A (ko) | 2013-12-26 |
CN103459541A (zh) | 2013-12-18 |
US20130317136A1 (en) | 2013-11-28 |
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