WO2016052666A1 - 合わせガラス用中間膜及び合わせガラス - Google Patents
合わせガラス用中間膜及び合わせガラス Download PDFInfo
- Publication number
- WO2016052666A1 WO2016052666A1 PCT/JP2015/077856 JP2015077856W WO2016052666A1 WO 2016052666 A1 WO2016052666 A1 WO 2016052666A1 JP 2015077856 W JP2015077856 W JP 2015077856W WO 2016052666 A1 WO2016052666 A1 WO 2016052666A1
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- WO
- WIPO (PCT)
- Prior art keywords
- laminated glass
- interlayer film
- glass
- laminated
- mol
- Prior art date
Links
- 239000005340 laminated glass Substances 0.000 title claims abstract description 165
- 239000011229 interlayer Substances 0.000 title claims abstract description 104
- 239000011521 glass Substances 0.000 claims description 57
- 238000005096 rolling process Methods 0.000 abstract description 24
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000001747 exhibiting effect Effects 0.000 abstract description 5
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 description 65
- 229920002554 vinyl polymer Polymers 0.000 description 51
- 239000004014 plasticizer Substances 0.000 description 50
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 49
- 238000009413 insulation Methods 0.000 description 38
- 239000010410 layer Substances 0.000 description 38
- 238000005259 measurement Methods 0.000 description 33
- 238000000034 method Methods 0.000 description 28
- 239000011241 protective layer Substances 0.000 description 27
- 239000004372 Polyvinyl alcohol Substances 0.000 description 23
- 229920002451 polyvinyl alcohol Polymers 0.000 description 23
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 21
- 150000001299 aldehydes Chemical class 0.000 description 19
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N butyric aldehyde Natural products CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 description 16
- 238000006116 polymerization reaction Methods 0.000 description 16
- 238000011156 evaluation Methods 0.000 description 13
- 125000004036 acetal group Chemical group 0.000 description 12
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 10
- 238000002360 preparation method Methods 0.000 description 10
- 238000012546 transfer Methods 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 9
- 238000007872 degassing Methods 0.000 description 8
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 8
- 230000035515 penetration Effects 0.000 description 8
- -1 polytetrafluoroethylene Polymers 0.000 description 8
- 239000011342 resin composition Substances 0.000 description 8
- 125000004432 carbon atom Chemical group C* 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 7
- 238000004049 embossing Methods 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- 230000000740 bleeding effect Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 239000005357 flat glass Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- HGBOYTHUEUWSSQ-UHFFFAOYSA-N pentanal Chemical compound CCCCC=O HGBOYTHUEUWSSQ-UHFFFAOYSA-N 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000005187 foaming Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 239000005060 rubber Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- 238000005422 blasting Methods 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 238000009849 vacuum degassing Methods 0.000 description 4
- 230000002087 whitening effect Effects 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 241001422033 Thestylus Species 0.000 description 3
- FRQDZJMEHSJOPU-UHFFFAOYSA-N Triethylene glycol bis(2-ethylhexanoate) Chemical compound CCCCC(CC)C(=O)OCCOCCOCCOC(=O)C(CC)CCCC FRQDZJMEHSJOPU-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 210000003746 feather Anatomy 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- GCDUWJFWXVRGSM-UHFFFAOYSA-N 2-[2-(2-heptanoyloxyethoxy)ethoxy]ethyl heptanoate Chemical compound CCCCCCC(=O)OCCOCCOCCOC(=O)CCCCCC GCDUWJFWXVRGSM-UHFFFAOYSA-N 0.000 description 2
- JEYLQCXBYFQJRO-UHFFFAOYSA-N 2-[2-[2-(2-ethylbutanoyloxy)ethoxy]ethoxy]ethyl 2-ethylbutanoate Chemical compound CCC(CC)C(=O)OCCOCCOCCOC(=O)C(CC)CC JEYLQCXBYFQJRO-UHFFFAOYSA-N 0.000 description 2
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- AMIMRNSIRUDHCM-UHFFFAOYSA-N Isopropylaldehyde Chemical compound CC(C)C=O AMIMRNSIRUDHCM-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- NBBJYMSMWIIQGU-UHFFFAOYSA-N Propionic aldehyde Chemical compound CCC=O NBBJYMSMWIIQGU-UHFFFAOYSA-N 0.000 description 2
- WMKJXMSCPRJMPV-UHFFFAOYSA-N [Mg].CCC(CC)C(O)=O.CCC(CC)C(O)=O Chemical compound [Mg].CCC(CC)C(O)=O.CCC(CC)C(O)=O WMKJXMSCPRJMPV-UHFFFAOYSA-N 0.000 description 2
- 230000021736 acetylation Effects 0.000 description 2
- 238000006640 acetylation reaction Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- JARKCYVAAOWBJS-UHFFFAOYSA-N hexanal Chemical compound CCCCCC=O JARKCYVAAOWBJS-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 239000011118 polyvinyl acetate Substances 0.000 description 2
- 229920002689 polyvinyl acetate Polymers 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- LVHHWVSYKBDVEA-UHFFFAOYSA-N 2-(2-heptanoyloxyethoxy)ethyl heptanoate Chemical compound CCCCCCC(=O)OCCOCCOC(=O)CCCCCC LVHHWVSYKBDVEA-UHFFFAOYSA-N 0.000 description 1
- UNNGUFMVYQJGTD-UHFFFAOYSA-N 2-Ethylbutanal Chemical compound CCC(CC)C=O UNNGUFMVYQJGTD-UHFFFAOYSA-N 0.000 description 1
- OXQGTIUCKGYOAA-UHFFFAOYSA-N 2-Ethylbutanoic acid Chemical compound CCC(CC)C(O)=O OXQGTIUCKGYOAA-UHFFFAOYSA-N 0.000 description 1
- OBETXYAYXDNJHR-UHFFFAOYSA-N 2-Ethylhexanoic acid Chemical compound CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 description 1
- SSKNCQWPZQCABD-UHFFFAOYSA-N 2-[2-[2-(2-heptanoyloxyethoxy)ethoxy]ethoxy]ethyl heptanoate Chemical compound CCCCCCC(=O)OCCOCCOCCOCCOC(=O)CCCCCC SSKNCQWPZQCABD-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- SHZIWNPUGXLXDT-UHFFFAOYSA-N caproic acid ethyl ester Natural products CCCCCC(=O)OCC SHZIWNPUGXLXDT-UHFFFAOYSA-N 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- KSMVZQYAVGTKIV-UHFFFAOYSA-N decanal Chemical compound CCCCCCCCCC=O KSMVZQYAVGTKIV-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- UEGPKNKPLBYCNK-UHFFFAOYSA-L magnesium acetate Chemical compound [Mg+2].CC([O-])=O.CC([O-])=O UEGPKNKPLBYCNK-UHFFFAOYSA-L 0.000 description 1
- 229940069446 magnesium acetate Drugs 0.000 description 1
- 235000011285 magnesium acetate Nutrition 0.000 description 1
- 239000011654 magnesium acetate Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- GYHFUZHODSMOHU-UHFFFAOYSA-N nonanal Chemical compound CCCCCCCCC=O GYHFUZHODSMOHU-UHFFFAOYSA-N 0.000 description 1
- NUJGJRNETVAIRJ-UHFFFAOYSA-N octanal Chemical compound CCCCCCCC=O NUJGJRNETVAIRJ-UHFFFAOYSA-N 0.000 description 1
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 125000005461 organic phosphorous group Chemical group 0.000 description 1
- 238000002559 palpation Methods 0.000 description 1
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
- B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10559—Shape of the cross-section
- B32B17/10577—Surface roughness
- B32B17/10587—Surface roughness created by embossing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10559—Shape of the cross-section
- B32B17/10577—Surface roughness
- B32B17/10596—Surface roughness created by melt fracture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
- B32B17/10972—Degassing during the lamination
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
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Definitions
- the present invention provides an interlayer film for laminated glass that can exhibit high degassing properties even by a nip roll method, and can produce a highly visible laminated glass without generating bubbles, and a laminated glass using the interlayer film for laminated glass I will provide a.
- Laminated glass obtained by sandwiching an interlayer film for laminated glass containing a thermoplastic resin such as plasticized polyvinyl butyral between two glass plates and bonding them together is widely used as a windshield for automobiles.
- a vacuum deaeration method is performed.
- a laminated body in which an interlayer film for glass is laminated between at least two glass plates is put in a rubber bag and sucked under reduced pressure, and air remaining between the glass plate and the interlayer film is deaerated.
- pre-pressure bonding is performed, and then, for example, heating and pressurization is performed in an autoclave to perform main pressure bonding, thereby obtaining an automobile windshield.
- corrugation is formed in the at least one surface of the intermediate film for laminated glasses for the purpose of ensuring the deaeration at the time of laminated glass manufacture.
- the recesses in the irregularities are extremely excellent by having a structure in which the bottoms have a continuous groove shape (engraved shape) and the adjacent engraved recesses are regularly formed in parallel. Deaeration can be demonstrated (for example, patent document 1).
- nip roll method as a method for producing laminated glass.
- a laminate in which an interlayer film for laminated glass is laminated between at least two glass plates is conveyed to a constant temperature by passing the laminate through a heating zone while being conveyed using a conveyor. After that, the air remaining between the glass and the intermediate film is removed while being handled through the nip roll, and at the same time, thermocompression bonding is performed to reduce the air between the intermediate film of the laminated body and the glass so as to adhere.
- the inventors of the present invention have studied the cause of the deterioration of the deaeration of the obtained laminated glass when the laminated glass is produced by the nip roll method. As a result, it has been found that the bottom formed on the surface of the interlayer film for laminated glass for deaeration is caused by a continuous groove-shaped recess (hereinafter, also referred to as “scored recess”).
- a continuous groove-shaped recess hereinafter, also referred to as “scored recess”.
- pressure reduction and heating are performed simultaneously and pre-compression is performed. Therefore, the engraved recesses are removed from the internal air by reducing the pressure, so that the recesses remain unbroken in the obtained laminated glass. That was hardly a problem.
- the recess may remain without being crushed after pre-bonding. If there is a large amount of air remaining in the recess that remains without being crushed, air bubbles may remain in the film even after pressurizing and heat-bonding with an autoclave, and visibility may be reduced. In particular, when the temperature of the laminated glass precursor at the time of pre-bonding is low, the recesses are not easily crushed and bubbles are likely to remain.
- the present invention provides an interlayer film for laminated glass that can exhibit high degassing properties even by a nip roll method, and can produce a highly visible laminated glass without generating bubbles, and a laminated glass using the interlayer film for laminated glass
- the purpose is to provide.
- the present invention has a large number of concave portions and a large number of convex portions on at least one surface, and the concave portion has a groove shape with a continuous bottom portion, and the adjacent concave portions are arranged in parallel in a regular manner.
- the ratio (R / Sm ⁇ 100) of the rotation radius R of the bottom of the groove-shaped recess having the continuous bottom to the interval Sm of the groove-shaped recess having the continuous bottom is 15 % Of the interlayer film for laminated glass.
- “having a large number of concave portions and a large number of convex portions on at least one surface” means “a large number of concave portions and a large number of convex portions are formed on at least one surface”.
- the concave part has a groove shape with a continuous bottom part, and the adjacent concave parts are arranged in parallel and in parallel.” It also means that the adjacent concave portions are regularly formed in parallel. The present invention is described in detail below.
- the inventors of the present invention can exhibit high degassing properties even by the nip roll method by making the irregular shape of the interlayer film for laminated glass specific, and produce laminated glass with high visibility.
- the present invention has been completed by finding out what can be done.
- the interlayer film for laminated glass of the present invention has a large number of concave portions and a large number of convex portions on at least one surface, and the concave portion has a groove shape with a continuous bottom portion, and the adjacent concave portions are parallel to each other. Are regularly in parallel. Thereby, the deaeration at the time of manufacture of the laminated glass by a nip roll method is securable. Although the said unevenness
- the concave / convex concave portion on the at least one surface has a groove shape in which the bottom portion is continuous (that is, has an “indented concave portion”), and adjacent concave portions. Are parallel and regularly parallel.
- the ease of air release when a laminated body in which an interlayer film for laminated glass is laminated between two glass plates is closely related to the connectivity and smoothness of the bottom of the recess.
- “regularly arranged in parallel” means that the adjacent engraved recesses may be arranged in parallel at equal intervals, and the adjacent engraved recesses in parallel may be arranged in parallel. However, it means that the intervals between all the adjacent engraved concave portions need not be equal. Further, the concave portion on the score line does not need to have a groove shape in which the entire bottom portion is continuous, and may have a dividing wall in a part of the bottom portion. In addition, if adjacent concave portions are arranged in parallel and regularly, the shape of the groove on the bottom portion may not be linear, and may be, for example, a wave shape or a zigzag shape.
- the ratio (R / Sm ⁇ 100) of the rotation radius R of the bottom of the groove-shaped recess having the continuous bottom to the interval Sm of the groove-shaped recess having the continuous bottom is 15. % Or more.
- the ratio (R / Sm ⁇ 100) of the radius of rotation R of the bottom of the groove-shaped recess having the continuous bottom to the interval Sm of the groove-shaped recess having the continuous bottom is preferably 20% or more, and more than 30%. More preferably, it is 50% or more.
- the ratio (R / Sm ⁇ 100) of the rotation radius R of the bottom of the groove-shaped concave portion where the bottom is continuous to the interval Sm of the groove-shaped concave portion where the bottom is continuous is preferably 200% or less. More preferably, it is 100% or less.
- the radius of rotation R of the bottom of the engraved recess is determined in the direction of the engraved recess using an interlayer film for laminated glass using a single-blade razor (for example, FAS-10, manufactured by Feather Safety Razor Co., Ltd.).
- the razor is extruded in a direction parallel to the thickness direction without sliding the razor in a direction perpendicular to the recess so that the cut surface is not deformed in a direction perpendicular to the film thickness direction.
- a scope for example, “DSX-100” manufactured by Olympus
- the spacing Sm between the engraved concave portions was observed on the first and second surfaces (observation range 20 mm ⁇ 20 mm) of the interlayer film for laminated glass using an optical microscope (“BS-D8000III” manufactured by SONIC). It is obtained by measuring the distance between adjacent recesses and calculating the average value of the shortest distances between the bottoms of adjacent recesses.
- the preferable lower limit of the rotation radius R of the bottom of the engraved concave portion is 20 ⁇ m, and the preferable upper limit is 250 ⁇ m. If the rotation radius R of the bottom of the above-mentioned engraved recess is within this range, when manufacturing laminated glass by the nip roll method, it is easier to crush the engraved recess by the pressure during pre-bonding. Demonstrates better deaeration.
- a more preferable lower limit of the rotation radius R of the bottom of the engraved recess is 40 ⁇ m, and a more preferable upper limit is 125 ⁇ m.
- the preferable lower limit of the interval Sm between the engraved concave portions is 50 ⁇ m, and the preferable upper limit is 1000 ⁇ m.
- the spacing Sm between the engraved recesses is within this range, when producing laminated glass by the nip roll method, the degassing performance is more excellent at the time of pre-bonding, and the engraved recess is caused by the pressure. It becomes easier to crush.
- a more preferable lower limit of the spacing Sm between the engraved recesses is 100 ⁇ m, a further preferable lower limit is 175 ⁇ m, a more preferable upper limit is 400 ⁇ m, and a further preferable upper limit is 300 ⁇ m.
- the preferable lower limit of the roughness (Rz) of the engraved concave portion is 10 ⁇ m, and the preferable upper limit is 80 ⁇ m. By setting the roughness (Rz) of the engraved concave portion within this range, excellent deaeration can be exhibited.
- the more preferable lower limit of the roughness (Rz) of the engraved concave portion is 20 ⁇ m, and the more preferable upper limit is 65 ⁇ m.
- a more preferred upper limit is 50 ⁇ m.
- the roughness (Rz) of engraved concave portions is defined in JIS B-0601 (1994), and is measured in the vertical direction so that the concave portions in the engraving direction cross the continuous direction. It is obtained by doing.
- “Surfcoder SE300” manufactured by Kosaka Laboratories, Inc. can be used as a measuring machine, and the cutoff value at the time of measurement is 2.5 mm, the reference length is 2.5 mm, and the measurement length is 12.5 mm.
- the preliminary length is 2.5 mm
- the palpation needle feed rate is 0.5 mm / second
- the stylus shape can be measured under conditions using a tip radius of 2 ⁇ m and a tip angle of 60 °.
- the environment at the time of a measurement is under 23 degreeC and 30RH%.
- the intermediate film to be measured is measured after being allowed to stand for 3 hours or more in the measurement environment.
- a preferable lower limit of the rotation radius R ′ at the tip of the uneven projection is 15 ⁇ m. This increases the frictional force between the glass and the interlayer film for laminated glass, and more effectively prevents the glass and the interlayer film for laminated glass from shifting on the conveyor when the laminated glass is manufactured by the nip roll method. Can be prevented.
- the upper limit of the rotation radius R ′ at the tip of the convex portion is not particularly limited, but is preferably 100 ⁇ m or less. Thereby, when the intermediate films are laminated, the handleability is improved without the films adhering to each other.
- a more preferable lower limit of the rotation radius R ′ at the tip of the convex portion is 30 ⁇ m, and a more preferable upper limit is 80 ⁇ m.
- the radius of rotation R ′ at the tip of the convex portion is obtained by cutting the intermediate film in a direction perpendicular to the direction of the engraved concave portion and in the film thickness direction, and cross-section the microscope (for example, manufactured by Olympus) Using “DSX-100”), taking a picture at a measurement magnification of 555 times, and further displaying the photographed image at a magnification of 50 ⁇ / 20 mm, using the measurement software in the attached software, It can be obtained by a method in which the radius of the circle when a circle inscribed at the vertex of the convex shape is drawn is set as the rotation radius of the tip of the convex portion.
- the environment at the time of a measurement is under 23 degreeC and 30RH%.
- the interlayer film for laminated glass of the present invention preferably contains a thermoplastic resin.
- the thermoplastic resin include polyvinylidene fluoride, polytetrafluoroethylene, vinylidene fluoride-hexafluoropropylene copolymer, polytrifluoride ethylene, acrylonitrile-butadiene-styrene copolymer, polyester, polyether, polyamide Polycarbonate, polyacrylate, polymethacrylate, polyvinyl chloride, polyethylene, polypropylene, polystyrene, polyvinyl acetal, ethylene-vinyl acetate copolymer and the like. Of these, polyvinyl acetal or ethylene-vinyl acetate copolymer is preferable, and polyvinyl acetal is more preferable.
- the polyvinyl acetal can be produced, for example, by acetalizing polyvinyl alcohol (PVA) with an aldehyde.
- PVA polyvinyl alcohol
- the polyvinyl acetal is preferably an acetalized product of polyvinyl alcohol.
- the degree of saponification of PVA is generally in the range of 70-99.9 mol%.
- the degree of polymerization of PVA for obtaining the polyvinyl acetal is preferably 200 or more, more preferably 500 or more, still more preferably 1700 or more, particularly preferably 2000 or more, preferably 5000 or less, more preferably 4000 or less, and even more preferably. Is 3000 or less, more preferably less than 3000, and particularly preferably 2800 or less.
- the polyvinyl acetal is preferably a polyvinyl acetal obtained by acetalizing PVA having a degree of polymerization of not less than the above lower limit and not more than the above upper limit. When the polymerization degree is equal to or higher than the lower limit, the penetration resistance of the laminated glass is further enhanced. When the polymerization degree is not more than the above upper limit, the intermediate film can be easily molded.
- the degree of polymerization of PVA indicates the average degree of polymerization.
- the average degree of polymerization is determined by a method based on JIS K6726 “Testing method for polyvinyl alcohol”.
- an aldehyde having 1 to 10 carbon atoms is preferably used as the aldehyde.
- aldehyde having 1 to 10 carbon atoms examples include formaldehyde, acetaldehyde, propionaldehyde, n-butyraldehyde, isobutyraldehyde, n-valeraldehyde, 2-ethylbutyraldehyde, n-hexylaldehyde, n-octylaldehyde, Examples include n-nonyl aldehyde, n-decyl aldehyde, and benzaldehyde.
- n-butyraldehyde n-hexylaldehyde or n-valeraldehyde is preferable, and n-butyraldehyde is more preferable.
- the said aldehyde only 1 type may be used and 2 or more types may be used together.
- the polyvinyl acetal is preferably polyvinyl butyral. By using polyvinyl butyral, the weather resistance of the interlayer film on the laminated glass member is further enhanced.
- the interlayer film for laminated glass of the present invention preferably contains a plasticizer.
- the plasticizer is not particularly limited as long as it is a plasticizer generally used for an interlayer film for laminated glass.
- organic plasticizers such as monobasic organic acid esters and polybasic organic acid esters, organic Examples thereof include phosphoric acid plasticizers such as phosphoric acid compounds and organic phosphorous acid compounds.
- the organic plasticizer include triethylene glycol-di-2-ethylhexanoate, triethylene glycol-di-2-ethylbutyrate, triethylene glycol-di-n-heptanoate, and tetraethylene glycol-di-2.
- -Ethylhexanoate tetraethylene glycol-di-2-ethylbutyrate, tetraethylene glycol-di-n-heptanoate, diethylene glycol-di-2-ethylhexanoate, diethylene glycol-di-2-ethylbutyrate, diethylene glycol -Di-n-heptanoate and the like.
- triethylene glycol-di-2-ethylhexanoate, triethylene glycol-di-2-ethylbutyrate, or triethylene glycol-di-n-heptanoate is preferable. More preferably, it contains -2-ethylhexanoate.
- the interlayer film for laminated glass of the present invention preferably contains an adhesive strength modifier.
- an alkali metal salt or alkaline-earth metal salt is used suitably, for example.
- salts, such as potassium, sodium, magnesium, are mentioned, for example.
- the acid constituting the salt include organic acids of carboxylic acids such as octylic acid, hexyl acid, 2-ethylbutyric acid, butyric acid, acetic acid and formic acid, or inorganic acids such as hydrochloric acid and nitric acid.
- the interlayer film for laminated glass according to the present invention includes, as necessary, a modified silicone oil, a flame retardant, an antistatic agent, a moisture resistant agent, a heat ray reflective agent, a heat ray absorbent, etc.
- the additive may be contained.
- the interlayer film for laminated glass of the present invention preferably has a glossiness of 35% or less.
- the glossiness means 75-degree specular gloss measured using a precision gloss meter (for example, “GM-26PRO” manufactured by Murakami Color Research Laboratory) in accordance with JIS Z 8741: 1997.
- the intermediate film having a glossiness of 35% or less has a fine uneven shape, and can suppress the self-adhesion force when the films are laminated to improve the handleability.
- a more preferable upper limit of the glossiness is 20% or less, and a more preferable upper limit is 10% or less.
- the glossiness is 3% or more, a fine uneven shape is prevented from remaining between the film and the glass at the time of pre-bonding, and air bubbles are prevented from remaining in the film even after pressurizing and heating with an autoclave. be able to.
- the first resin layer is a protective layer and the second resin layer is a sound insulation layer.
- An interlayer film for laminated glass (hereinafter, also referred to as “sound insulating interlayer”) having excellent sound insulating properties, in which a sound insulating layer is sandwiched between two protective layers.
- sound insulation interlayer will be described more specifically.
- the sound insulating layer has a role of providing sound insulating properties.
- the sound insulation layer preferably contains polyvinyl acetal X and a plasticizer.
- the polyvinyl acetal X can be prepared by acetalizing polyvinyl alcohol with an aldehyde.
- the polyvinyl acetal X is preferably an acetalized product of polyvinyl alcohol.
- the polyvinyl alcohol is usually obtained by saponifying polyvinyl acetate.
- the preferable lower limit of the polymerization degree of the polyvinyl alcohol is 200, and the preferable upper limit is 5000.
- the polymerization degree of the polyvinyl alcohol By setting the polymerization degree of the polyvinyl alcohol to 200 or more, the penetration resistance of the obtained sound insulating interlayer can be improved, and by setting it to 5000 or less, the moldability of the sound insulating layer can be ensured.
- the minimum with a more preferable polymerization degree of the said polyvinyl alcohol is 500, and a more preferable upper limit is 4000.
- the preferable lower limit of the carbon number of the aldehyde for acetalizing the polyvinyl alcohol is 4, and the preferable upper limit is 6.
- the aldehyde having 4 to 6 carbon atoms may be a linear aldehyde or a branched aldehyde, and examples thereof include n-butyraldehyde and n-valeraldehyde. .
- the upper limit with the preferable amount of hydroxyl groups of the said polyvinyl acetal X is 30 mol%.
- the more preferable upper limit of the hydroxyl group amount of the polyvinyl acetal X is 28 mol%, the more preferable upper limit is 26 mol%, the particularly preferable upper limit is 24 mol%, the preferable lower limit is 10 mol%, the more preferable lower limit is 15 mol%, and the more preferable lower limit. Is 20 mol%.
- the amount of hydroxyl groups in the polyvinyl acetal X is a value obtained by dividing the amount of ethylene groups to which the hydroxyl groups are bonded by the total amount of ethylene groups in the main chain, as a percentage (mol%).
- the amount of ethylene group to which the hydroxyl group is bonded can be determined, for example, by measuring the amount of ethylene group to which the hydroxyl group of polyvinyl acetal X is bonded by a method based on JIS K6728 “Testing method for polyvinyl butyral”. it can.
- the minimum with the preferable amount of acetal groups of the said polyvinyl acetal X is 60 mol%, and a preferable upper limit is 85 mol%.
- a preferable upper limit is 85 mol%.
- the amount of the acetal group can be determined by measuring the amount of ethylene group to which the acetal group of the polyvinyl acetal X is bonded by a method based on JIS K6728 “Testing method for polyvinyl butyral”.
- the minimum with the preferable amount of acetyl groups of the said polyvinyl acetal X is 0.1 mol%, and a preferable upper limit is 30 mol%.
- a preferable upper limit is 30 mol%.
- the more preferable lower limit of the acetyl group amount is 1 mol%, the more preferable lower limit is 5 mol%, the particularly preferable lower limit is 8 mol%, the more preferable upper limit is 25 mol%, and the still more preferable upper limit is 20 mol%.
- the amount of acetyl groups is the value obtained by subtracting the amount of ethylene groups to which acetal groups are bonded and the amount of ethylene groups to which hydroxyl groups are bonded from the total amount of ethylene groups in the main chain. This is a value expressed as a percentage (mol%) of the mole fraction obtained by dividing by.
- the above-mentioned sound insulation layer can easily contain a plasticizer in an amount necessary to exhibit sound insulation
- the above-mentioned polyvinyl acetal X is a polyvinyl acetal having an acetyl group content of 8 mol% or more, or Polyvinyl acetal having an acetyl group amount of less than 8 mol% and an acetal group amount of 68 mol% or more is preferred.
- the preferable minimum with respect to 100 mass parts of said polyvinyl acetals X is 45 mass parts, and a preferable upper limit is 80 mass parts.
- a preferable upper limit is 80 mass parts.
- the more preferred lower limit of the plasticizer content is 50 parts by mass
- the still more preferred lower limit is 55 parts by mass
- the more preferred upper limit is 75 parts by mass
- the still more preferred upper limit is 70 parts by mass.
- content of the plasticizer in the said sound insulation layer may be plasticizer content before laminated glass preparation, and may be plasticizer content after laminated glass preparation.
- content of the plasticizer after laminated glass preparation can be measured in accordance with the following procedures. After producing the laminated glass, it is left to stand for 4 weeks in an environment of a temperature of 25 ° C. and a humidity of 30%. Thereafter, the laminated glass is cooled with liquid nitrogen to peel off the glass and the interlayer film for laminated glass. The obtained protective layer and sound insulation layer are cut in the thickness direction and allowed to stand for 2 hours in an environment at a temperature of 25 ° C. and a humidity of 30%.
- a preferable lower limit of the thickness of the sound insulation layer is 50 ⁇ m. By setting the thickness of the sound insulation layer to 50 ⁇ m or more, sufficient sound insulation can be exhibited. A more preferable lower limit of the thickness of the sound insulation layer is 70 ⁇ m, and a more preferable lower limit is 80 ⁇ m. In addition, although an upper limit is not specifically limited, Considering the thickness as an interlayer film for laminated glass, a preferable upper limit is 150 ⁇ m.
- the above-mentioned protective layer prevents bleeding of a large amount of plasticizer contained in the sound insulation layer, resulting in a decrease in the adhesion between the interlayer film for laminated glass and the glass. Has the role of granting.
- the protective layer preferably contains, for example, polyvinyl acetal Y and a plasticizer, and more preferably contains polyvinyl acetal Y having a larger amount of hydroxyl group than polyvinyl acetal X and a plasticizer.
- the polyvinyl acetal Y can be prepared by acetalizing polyvinyl alcohol with an aldehyde.
- the polyvinyl acetal Y is preferably an acetalized product of polyvinyl alcohol.
- the polyvinyl alcohol is usually obtained by saponifying polyvinyl acetate.
- the preferable minimum of the polymerization degree of the said polyvinyl alcohol is 200, and a preferable upper limit is 5000.
- the minimum with a more preferable polymerization degree of the said polyvinyl alcohol is 500, and a more preferable upper limit is 4000.
- the preferable lower limit of the carbon number of the aldehyde for acetalizing the polyvinyl alcohol is 3, and the preferable upper limit is 4.
- the aldehyde having 3 to 4 carbon atoms may be a linear aldehyde or a branched aldehyde, and examples thereof include n-butyraldehyde.
- the upper limit with the preferable amount of hydroxyl groups of the said polyvinyl acetal Y is 33 mol%, and a preferable minimum is 28 mol%.
- the preferable lower limit of the amount of acetal group is 60 mol%, and the preferable upper limit is 80 mol%.
- the amount of the acetal group is 60 mol% or more, an amount of plasticizer necessary for exhibiting sufficient penetration resistance can be contained.
- the amount of the acetal group 80 mol% or less it is possible to ensure the adhesive force between the protective layer and the glass.
- a more preferable lower limit of the amount of the acetal group is 65 mol%, and a more preferable upper limit is 69 mol%.
- the upper limit with the preferable amount of acetyl groups of the said polyvinyl acetal Y is 7 mol%.
- the amount of acetyl groups of the polyvinyl acetal Y 7 mol% or less the hydrophobicity of the protective layer can be increased and whitening can be prevented.
- a more preferable upper limit of the amount of the acetyl group is 2 mol%, and a preferable lower limit is 0.1 mol%.
- the amount of hydroxyl groups, the amount of acetal groups, and the amount of acetyl groups of polyvinyl acetal Y can be measured by the same method as for polyvinyl acetal X.
- the preferable minimum with respect to 100 mass parts of said polyvinyl acetals Y is 20 mass parts, and a preferable upper limit is 45 mass parts.
- a preferable upper limit is 45 mass parts.
- the plasticizer content in the protective layer is preferably smaller than the plasticizer content in the sound insulation layer.
- content of the plasticizer in the said protective layer may be plasticizer content before laminated glass preparation, and may be plasticizer content after laminated glass preparation.
- content of the plasticizer after laminated glass preparation can be measured by the procedure similar to the said sound insulation layer.
- the amount of hydroxyl group of the polyvinyl acetal Y is preferably larger than the amount of hydroxyl group of the polyvinyl acetal X, more preferably 1 mol% or more, further preferably 5 mol% or more. It is particularly preferably 8 mol% or more.
- the content of the plasticizer (hereinafter also referred to as content X) relative to 100 parts by mass of the polyvinyl acetal X100 in the sound insulation layer is the polyvinyl acetal Y100 in the protective layer. It is preferably more than the content of plasticizer (hereinafter also referred to as “content Y”) relative to parts by mass, more preferably 5 parts by mass or more, still more preferably 15 parts by mass or more, and more than 20 parts by mass. It is particularly preferred.
- the glass transition temperature of the sound insulation layer is lowered. As a result, the sound insulation of the laminated glass is further improved.
- the preferable lower limit as the thickness of the protective layer is 200 ⁇ m, and the preferable upper limit is 1000 ⁇ m. By setting the thickness of the protective layer to 200 ⁇ m or more, penetration resistance can be ensured. A more preferable lower limit of the thickness of the protective layer is 300 ⁇ m, and a more preferable upper limit is 700 ⁇ m.
- the method for producing the sound insulation interlayer is not particularly limited.For example, after the sound insulation layer and the protective layer are formed into a sheet by a normal film formation method such as an extrusion method, a calendar method, and a press method, The method of laminating etc. is mentioned.
- the manufacturing method of the interlayer film for laminated glass of the present invention is not particularly limited, and a conventionally known manufacturing method can be used.
- Examples of the method for forming a large number of concave portions and a large number of convex portions on at least one surface of the interlayer film for laminated glass in the present invention include an emboss roll method, a calender roll method, a profile extrusion method, a melt fracture method, and the like. It is done. Of these, the embossing roll method is preferable.
- the laminated glass in which the interlayer film for laminated glass of the present invention is laminated between a pair of glass plates is also one aspect of the present invention.
- the said glass plate can use the transparent plate glass generally used. Examples thereof include inorganic glass such as float plate glass, polished plate glass, template glass, netted glass, wire-containing plate glass, colored plate glass, heat ray absorbing glass, heat ray reflecting glass, and green glass. Further, an ultraviolet shielding glass having an ultraviolet shielding coating layer formed on the glass surface can also be used. Furthermore, organic plastics plates such as polyethylene terephthalate, polycarbonate, and polyacrylate can also be used. Two or more types of glass plates may be used as the glass plate. For example, the laminated glass which laminated
- the laminated glass of the present invention can be suitably produced by a nip roll method.
- a laminate in which an interlayer film for laminated glass is laminated between at least two glass plates is conveyed to a constant temperature by passing the laminate through a heating zone while being conveyed using a conveyor. After that, the air remaining between the glass and the intermediate film is removed while being handled through the nip roll, and at the same time, thermocompression bonding is performed to reduce the air between the intermediate film of the laminated body and the glass so as to adhere.
- the inclination of the said engraved recessed part of the intermediate film for laminated glasses of this invention shall be 55 degrees or less with respect to the flow direction by a conveyor. Is preferred. Thereby, it can prevent that glass and the intermediate film for laminated glasses shift
- the inclination of the engraved concave portion of the interlayer film for laminated glass of the present invention when transported using a conveyor is more preferably 45 ° or less, and 25 ° or less with respect to the flow direction by the conveyor. More preferably.
- the interlayer film for laminated glass which can exhibit high degassing property even by the nip roll method, can produce a highly visible laminated glass without generating bubbles, and the interlayer film for laminated glass are used.
- Laminated glass can be provided.
- Example 1 Preparation of interlayer film for laminated glass Polyvinyl butyral obtained by acetalizing polyvinyl alcohol having an average polymerization degree of 1700 with n-butyraldehyde (acetyl group content 1 mol%, butyral group content 69 mol%, hydroxyl group 30 mol%) 100 parts by weight of triethylene glycol-di-2-ethylhexanoate (3GO) as a plasticizer and bis (2-ethylbutyric acid) magnesium and acetic acid as adhesive strength regulators A 50% by mass of magnesium: 50% by mass mixture was added so that the magnesium concentration in the film was 50 ppm, and the mixture was sufficiently kneaded with a mixing roll to obtain a resin composition. The obtained resin composition was extruded using an extruder to obtain an interlayer film for laminated glass having a single-layer structure having a thickness of 760 ⁇ m.
- 3GO triethylene glycol-di-2-ethylhexanoate
- the surface of the iron roll is randomly ground with a blasting agent, and then the roll is vertically ground, and a finer blasting agent is used to finely uneven the ground portion after grinding.
- a pair of rolls having the same shape with coarse main embossing and fine sub-embossing was used as a concavo-convex shape transfer device, and random concavo-convex shapes were transferred to both surfaces of the obtained interlayer film for laminated glass.
- the transfer conditions at this time the temperature of the interlayer film for laminated glass was 80 ° C.
- the temperature of the roll was 145 ° C.
- the linear velocity was 10 m / min
- the press linear pressure was 10 to 200 kN / m.
- a pair of rolls composed of a metal roll whose surface was engraved using a triangular oblique mill and a rubber roll having a JIS hardness of 65 to 75 was used as an uneven shape transfer device, and the resulting alignment was obtained.
- the glass intermediate film is passed through this concavo-convex shape transfer device, giving concave and convex portions formed at equal intervals in parallel with a groove-shaped (engraved) concave portion on one surface of the laminated glass intermediate film. did.
- the temperature of the interlayer film for laminated glass was 70 ° C.
- the roll temperature was 145 ° C.
- the linear velocity was 10 m / min
- the press linear pressure was 5 to 100 kN / m.
- the film thickness in the width direction and the flow direction was 760 ⁇ m
- the difference between the maximum thickness and the minimum thickness was 25 ⁇ m
- the thickness profile was divided into 15 cm in the measurement direction
- the thickness difference in the section with the largest difference was 10 ⁇ m.
- the surface of the interlayer film for laminated glass was observed at 5 points each in an observation range of 20 mm ⁇ 20 mm using an optical microscope (SONIC Co., Ltd. “BS-D8000III”). After measuring the distance, the average value of the shortest distances between the bottoms of the adjacent recesses was calculated.
- a single-blade razor FAS-10, manufactured by Feather Safety Razor Co., Ltd.
- the cut surface is not deformed in a direction perpendicular to the direction of the scored recess and parallel to the film thickness direction.
- the razor was cut by being pushed in a direction parallel to the thickness direction without sliding in the direction perpendicular to the concave portion, and the cross section was observed using a microscope (“DSX-100” manufactured by Olympus).
- DSX-100 manufactured by Olympus
- the circle inscribed in the bottom of the engraved concave portion is drawn.
- the radius (namely, the radius of rotation R) was determined.
- Rz on the film surface after the first step was 15 ⁇ m.
- Table 1 shows the measured values of the irregularities on the front and back surfaces of the interlayer film for laminated glass.
- Examples 2 to 13, Comparative Examples 1 to 4 The acetyl group amount, butyral group amount and hydroxyl group amount of polyvinyl butyral used are changed as shown in Tables 1 and 2, and the shape of the embossing roll in the first step, the unevenness imparted by changing the triangle diagonal roll
- An interlayer film for laminated glass was prepared in the same manner as in Example 1 except that the shape was changed.
- Tables 1 and 2 show the measured values of the irregularities on the front and back surfaces of the interlayer films for laminated glass obtained in Examples and Comparative Examples.
- Example 14 (Preparation of resin composition for protective layer) Triethylene glycol di-2-ethylhexa as a plasticizer with respect to 100 parts by weight of polyvinyl butyral resin (hydroxyl group content 30 mol%, acetylation degree 1 mol%, butyralization degree 69 mol%, average polymerization degree 1700) 36 parts by weight of noate (3GO) and a 50% by mass: 50% by mass mixture of bis (2-ethylbutyric acid) magnesium and magnesium acetate as an adhesion adjusting agent were added so that the magnesium concentration in the film was 50 ppm, The mixture was sufficiently kneaded with a mixing roll to obtain a protective layer resin composition.
- polyvinyl butyral resin hydroxyl group content 30 mol%, acetylation degree 1 mol%, butyralization degree 69 mol%, average polymerization degree 1700
- plasticizer As a plasticizer, triethylene glycol di-di- is used as a plasticizer with respect to 100 parts by weight of polyvinyl butyral resin (hydroxyl content 23.5 mol%, acetylation degree 12.5 mol%, butyralization degree 64 mol%, average polymerization degree 2300). 76.5 parts by weight of 2-ethylhexanoate (3GO) was added and sufficiently kneaded with a mixing roll to obtain a sound insulating layer resin composition.
- polyvinyl butyral resin hydroxyl content 23.5 mol%, acetylation degree 12.5 mol%, butyralization degree 64 mol%, average polymerization degree 2300.
- 2-ethylhexanoate (3GO) was added and sufficiently kneaded with a mixing roll to obtain a sound insulating layer resin composition.
- the width is 100 cm and the protective layer (thickness: 350 ⁇ m), the sound insulating layer (thickness: 100 ⁇ m), and the protective layer (thickness: 350 ⁇ m)
- the interlayer film for laminated glass having a three-layer structure laminated in this order was obtained.
- the surface of the iron roll is randomly ground with a blasting agent, and then the roll is vertically ground, and a finer blasting agent is used to finely uneven the ground portion after grinding.
- a pair of rolls having the same shape with coarse main embossing and fine sub-embossing was used as a concavo-convex shape transfer device, and random concavo-convex shapes were transferred to both surfaces of the obtained interlayer film for laminated glass.
- the transfer conditions at this time the temperature of the interlayer film for laminated glass was 80 ° C.
- the temperature of the roll was 145 ° C.
- the linear velocity was 10 m / min
- the press linear pressure was 10 to 200 kN / m.
- a pair of rolls composed of a metal roll whose surface was engraved using a triangular oblique mill and a rubber roll having a JIS hardness of 65 to 75 was used as an uneven shape transfer device, and the resulting alignment was obtained.
- the glass intermediate film is passed through this concavo-convex shape transfer device, giving concave and convex portions formed at equal intervals in parallel with a groove-shaped (engraved) concave portion on one surface of the laminated glass intermediate film. did.
- the temperature of the interlayer film for laminated glass was 70 ° C.
- the roll temperature was 145 ° C.
- the linear velocity was 10 m / min
- the press linear pressure was 5 to 100 kN / m.
- the film thickness in the width direction and in the flow direction was 800 ⁇ m
- the difference between the maximum thickness and the minimum thickness was 25 ⁇ m
- the thickness profile was divided into 15 cm increments in the measurement direction.
- the thickness difference in the section with the largest difference was 10 ⁇ m.
- the surface of the interlayer film for laminated glass was observed at 5 points each in an observation range of 20 mm ⁇ 20 mm using an optical microscope (SONIC Co., Ltd. “BS-D8000III”). After measuring the distance, the average value of the shortest distances between the bottoms of the adjacent recesses was calculated.
- a single-blade razor FAS-10, manufactured by Feather Safety Razor Co., Ltd.
- the cut surface is not deformed in a direction perpendicular to the direction of the scored recess and parallel to the film thickness direction.
- the razor was cut by being pushed in a direction parallel to the thickness direction without sliding in the direction perpendicular to the concave portion, and the cross section was observed using a microscope (“DSX-100” manufactured by Olympus).
- DSX-100 manufactured by Olympus
- the circle inscribed in the bottom of the engraved concave portion is drawn.
- the radius (namely, the radius of rotation R) was determined.
- Rz on the film surface after the first step was 15 ⁇ m.
- Table 3 shows the measured values of the irregularities on the front and back surfaces of the interlayer film for laminated glass.
- the plasticizer in a measurement sample was quantified and the content of the plasticizer in a protective layer and an intermediate
- Example 15 to 22, Comparative Examples 5 to 7 Change the acetyl group amount, butyral group amount and hydroxyl group amount of the polyvinyl butyral used as shown in Table 3, and change the shape of the embossing roll in the first step, the shape of the unevenness to be imparted by changing the triangular diagonal roll
- An interlayer film for laminated glass was prepared in the same manner as in Example 14 except that.
- Table 3 shows the measured values of the irregularities on the front and back surfaces of the interlayer films for laminated glass obtained in Examples and Comparative Examples.
- the laminated body is passed through an infrared oven while being conveyed by a roller conveyor and heated so that the surface temperature becomes 50 ° C., and then secondarily deaerated with a second nip roll (roll pressure 4 kgf / cm 2 ) and laminated. Got the body.
- the obtained laminate was further transported on a roller conveyor, passed through an infrared oven and heated so that the glass surface temperature of the laminate was 85 ° C., and then a third nip roll (roll pressure 4 kgf / cm 2 ), tertiary deaeration was performed while deaeration of air remaining between the glass plate and the intermediate film, and the pre-compression was completed.
- Table 1 Table 2 and Table 3 show the angles between the engraved concave portions formed on the surface of the interlayer film for laminated glass and the flow direction of the conveyor.
- the laminated body in which the pre-compression bonding was completed was immersed in liquid nitrogen and sufficiently cooled to peel the glass so that no glass remained on the surface of the intermediate film, thereby obtaining an intermediate film sheet.
- the obtained intermediate film sheet was allowed to stand at 23 ° C. and 30 RH% for 1 hour, and then the surface of the intermediate film sheet was retained with a three-dimensional surface shape measuring instrument (Bulker AXS, Contour GT-K). Was measured.
- the measurement of the emboss shape with a three-dimensional surface shape measuring machine was performed within 24 hours. Measurement points were measured at 20 points in a region between 10 and 20 cm from the glass edge on the traveling direction side when transported by a roller conveyor, and 3 cm away from the left and right glass edges.
- the measurement field per one was set to 1.3 mm ⁇ 1.3 mm. From the obtained three-dimensional shape, the volume of the groove shape remaining by the multivision analysis of the analysis software attached to the three-dimensional surface shape measuring instrument was measured.
- the reference plane for calculating the volume was the separation surface of the glass and the film.
- the “ZeroLevel” condition in the Multivision analysis condition is set to “BackGround”, and the value of the “By Threshold” item is adjusted.
- the average groove volume is an average value of the groove volumes of the front surface and the back surface at the same point.
- the laminated body is passed through an infrared oven while being conveyed by a roller conveyor and heated so that the surface temperature becomes 50 ° C., and then secondarily deaerated with a second nip roll (roll pressure 4 kgf / cm 2 ) and laminated. Got the body.
- the obtained laminate was further transported on a roller conveyor, passed through an infrared oven and heated so that the glass surface temperature of the laminate was 85 ° C., and then a third nip roll (roll pressure 4 kgf / cm 2 ), tertiary deaeration was performed while deaeration of air remaining between the glass plate and the intermediate film, and the pre-compression was completed.
- the gap between the nip rolls when passing each nip roll was 1 mm narrower than the thickness of the laminate, and the peripheral speed of the nip rolls was 5 m / min.
- Table 1, Table 2, and Table 3 show the angles between the engraved concave portions formed on the surface of the interlayer film for laminated glass and the flow direction of the conveyor.
- the laminate is passed through an infrared oven while being transported by a roller conveyor and heated so that the surface temperature becomes 70 ° C., and then secondarily deaerated with a second nip roll (roll pressure 4 kgf / cm 2 ) and laminated. Got the body.
- the gap between the nip rolls when passing each nip roll was 1 mm narrower than the thickness of the laminate, and the peripheral speed of the nip rolls was 5 m / min.
- Table 1, Table 2, and Table 3 show the angles between the engraved concave portions formed on the surface of the interlayer film for laminated glass and the flow direction of the conveyor.
- the laminated body is passed through an infrared oven while being conveyed by a roller conveyor, heated to a surface temperature of 60 ° C., and then secondarily deaerated with a second nip roll (roll pressure 4 kgf / cm 2 ) to be laminated.
- a second nip roll roll pressure 4 kgf / cm 2
- the gap between the nip rolls when passing each nip roll was 1 mm narrower than the thickness of the laminate, and the peripheral speed of the nip rolls was 5 m / min.
- Table 1, Table 2, and Table 3 show the angles between the engraved concave portions formed on the surface of the interlayer film for laminated glass and the flow direction of the conveyor.
- the laminated body obtained under the conditions 1 to 3 for the evaluation of the foaming of the laminated glass was maintained for 20 minutes at a tank pressure of 13 atm and a tank temperature of 140 ° C. using an autoclave apparatus. Then, the pressure was reduced to 1 atm to prepare a laminated glass. Further, the laminated glass was stored in an oven at 140 ° C. for 2 hours, then taken out of the oven and allowed to cool for 3 hours, and then the appearance of the laminated glass was visually observed. For each of the 20 sheets, the number of bubbles (bubbles) generated between the glass plate and the interlayer film for laminated glass was examined, and it was determined whether bubbles were generated in a region 1 cm or more away from the edge of the glass. The case where the number of bubbles was 5 or less was evaluated as “ ⁇ ”, and the case where the number of bubbles was 6 or more was evaluated as “x”.
- the parallel light transmittance was evaluated by the following method. That is, in accordance with JIS K 7105, the parallel light transmittance Tp (%) of the laminate after preliminary deaeration was measured using a haze meter (manufactured by Murakami Color Research Laboratory Co., Ltd., HM-150). The measurement position is a central portion where two diagonal lines of the laminated body after preliminary deaeration intersect, and five points that are 5.6 cm apart from each vertex of the laminated body after preliminary deaeration in the diagonal direction. Tp. Before the measurement, the laminate was cut out from the laminate so as to have a size that does not affect the measurement value around the measurement point, and used as a measurement sample.
- the fall of the transparency of a laminated glass originates in the deaeration defect at the time of preliminary pressure bonding. Therefore, the degassing property of the interlayer film for laminated glass can be evaluated more precisely by measuring the visible light transmittance of the laminate after preliminary degassing, rather than evaluating the foaming property of the laminated glass.
- the interlayer film for laminated glass which can exhibit high degassing property even by the nip roll method, can produce a highly visible laminated glass without generating bubbles, and the interlayer film for laminated glass are used.
- Laminated glass can be provided.
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Abstract
Description
真空脱気法では、少なくとも2枚のガラス板の間に合わせガラス用中間膜が積層された積層体をゴムバックに入れて減圧吸引し、ガラス板と中間膜との間に残留する空気を脱気しながら予備圧着し、次いで、例えばオートクレーブ内で加熱加圧して本圧着を行うことにより自動車用フロントガラスを得る。
なお、本発明において、「少なくとも一方の表面に、多数の凹部と多数の凸部とを有し」とは「少なくとも一方の表面に、多数の凹部と多数の凸部とが形成されている」ことをも意味し、「凹部は、底部が連続した溝形状を有し、隣接する前記凹部が平行して規則的に並列しており」とは「凹部は、底部が連続した溝形状を有し、隣接する前記凹部が平行して規則的に形成されている」ことをも意味する。
以下に本発明を詳述する。
なお、「規則的に並列している」とは、隣接する上記刻線状の凹部が平行して等間隔に並列していてもよく、隣接する上記刻線状の凹部が平行して並列しているが、すべての隣接する上記刻線状の凹部の間隔が等間隔でなくともよいことを意味する。また、上記刻線上の凹部は、底部の全てが連続した溝形状である必要は無く、底部の一部に分断壁を有していてもよい。また、隣接する凹部が平行して規則的に並列していれば、底部が溝の形状は直線状でなくともよく、例えば、波形状やジグザグ状であってもよい。
上記底部が連続した溝形状の凹部の間隔Smに対する上記底部が連続した溝形状の凹部の底部の回転半径Rの比率(R/Sm×100)は20%以上であることが好ましく、30%以上であることがより好ましく、更に好ましくは50%以上である。なお、上記底部が連続した溝形状の凹部の間隔Smに対する上記底部が連続した溝形状の凹部の底部の回転半径Rの比率(R/Sm×100)は、200%以下であることが好ましく、より好ましくは100%以下である。
また、本明細書における上記刻線状の凹部の間隔Smは、JIS B-0601(1994)に規定される。上記刻線状の凹部の間隔Smは、光学顕微鏡(SONIC社製「BS-D8000III」)を用いて、合わせガラス用中間膜の第1面及び第2面(観察範囲20mm×20mm)を観察し、隣接する凹部の間隔を測定したうえで、隣接する凹部の最底部間の最短距離の平均値を算出することにより得られる。
なお、本明細書において刻線状の凹部の粗さ(Rz)は、JIS B-0601(1994)に規定され、刻線方向の凹部が連続する方向に対して横断するように垂直方向に測定することで得られる。ここで、測定機としては例えば小坂研究所社製「Surfcorder SE300」等を用いることができ、測定時のカットオフ値は2.5mm、基準長さは2.5mm、測定長さを12.5mmとし、予備長さを2.5mmとし、触診針の送り速度は0.5mm/秒、触針形状は先端半径2μm、先端角60°のものを用いる条件により測定することができる。また、測定時の環境は23℃及び30RH%下である。また測定する中間膜は測定時の環境下で3時間以上静置した後に測定する。
なお、上記凸部の先端の回転半径R’は、中間膜を刻線状の凹部の方向に対して垂直方向、かつ、膜厚み方向に切断し、その断面をマイクロスコープ(例えば、オリンパス社製「DSX-100」)を用いて観察し、測定倍率を555倍にて撮影し、更に撮影画像を50μ/20mmになるように拡大表示させた状態で、付属ソフト内の計測ソフトを用いて、凸形状の頂点に内接する円を描いたときの該円の半径を該凸部の先端の回転半径とする方法により求めることができる。また、測定時の環境は23℃及び30RH%下である。
上記熱可塑性樹脂として、例えば、ポリフッ化ビニリデン、ポリテトラフルオロエチレン、フッ化ビニリデン-六フッ化プロピレン共重合体、ポリ三フッ化エチレン、アクリロニトリル-ブタジエン-スチレン共重合体、ポリエステル、ポリエーテル、ポリアミド、ポリカーボネート、ポリアクリレート、ポリメタクリレート、ポリ塩化ビニル、ポリエチレン、ポリプロピレン、ポリスチレン、ポリビニルアセタール、エチレン-酢酸ビニル共重合体等が挙げられる。なかでも、ポリビニルアセタール、又は、エチレン-酢酸ビニル共重合体が好ましく、ポリビニルアセタールがより好ましい。
上記可塑剤としては、合わせガラス用中間膜に一般的に用いられる可塑剤であれば特に限定されず、例えば、一塩基性有機酸エステル、多塩基性有機酸エステル等の有機可塑剤や、有機リン酸化合物、有機亜リン酸化合物等のリン酸可塑剤等が挙げられる。
上記有機可塑剤として、例えば、トリエチレングリコール-ジ-2-エチルヘキサノエート、トリエチレングリコール-ジ-2-エチルブチレート、トリエチレングリコール-ジ-n-ヘプタノエート、テトラエチレングリコール-ジ-2-エチルヘキサノエート、テトラエチレングリコール-ジ-2-エチルブチレート、テトラエチレングリコール-ジ-n-ヘプタノエート、ジエチレングリコール-ジ-2-エチルヘキサノエート、ジエチレングリコール-ジ-2-エチルブチレート、ジエチレングリコール-ジ-n-ヘプタノエート等が挙げられる。なかでも、トリエチレングリコール-ジ-2-エチルヘキサノエート、トリエチレングリコール-ジ-2-エチルブチレート、又は、トリエチレングリコール-ジ-n-ヘプタノエートを含むことが好ましく、トリエチレングリコール-ジ-2-エチルヘキサノエートを含むことがより好ましい。
上記接着力調整剤としては、例えば、アルカリ金属塩又はアルカリ土類金属塩が好適に用いられる。上記接着力調整剤として、例えば、カリウム、ナトリウム、マグネシウム等の塩が挙げられる。
上記塩を構成する酸としては、例えば、オクチル酸、ヘキシル酸、2-エチル酪酸、酪酸、酢酸、蟻酸等のカルボン酸の有機酸、又は、塩酸、硝酸等の無機酸が挙げられる。
本明細書において光沢度とは、精密光沢計(例えば、村上色彩研究所製「GM-26PRO」等)を用いて、JIS Z 8741:1997に準拠して測定される75度鏡面光沢を意味する。光沢度が35%以下である中間膜は、微細な凹凸形状を持ち、膜同士を積層した際の自着力を抑制し、取扱い性を向上することができる。上記光沢度のより好ましい上限は20%以下、更に好ましい上限は10%以下である。光沢度が3%以上の場合、予備圧着時に微細な凹凸形状が膜とガラスの間に残留することを抑制し、オートクレーブにて加圧加熱圧着後にも膜中に気泡が残存することを防止することができる。
以下、該遮音中間膜について、より具体的に説明する。
上記遮音層は、ポリビニルアセタールXと可塑剤とを含有することが好ましい。
上記ポリビニルアセタールXは、ポリビニルアルコールをアルデヒドによりアセタール化することにより調製することができる。上記ポリビニルアセタールXは、ポリビニルアルコールのアセタール化物であることが好ましい。上記ポリビニルアルコールは、通常、ポリ酢酸ビニルをけん化することにより得られる。
上記ポリビニルアルコールの重合度の好ましい下限は200、好ましい上限は5000である。上記ポリビニルアルコールの重合度を200以上とすることにより、得られる遮音中間膜の耐貫通性を向上させることができ、5000以下とすることにより、遮音層の成形性を確保することができる。上記ポリビニルアルコールの重合度のより好ましい下限は500、より好ましい上限は4000である。
上記炭素数が4~6のアルデヒドとしては、直鎖状のアルデヒドであってもよいし、分枝状のアルデヒドであってもよく、例えば、n-ブチルアルデヒド、n-バレルアルデヒド等が挙げられる。
上記ポリビニルアセタールXの水酸基量は、水酸基が結合しているエチレン基量を、主鎖の全エチレン基量で除算して求めたモル分率を百分率(モル%)で表した値である。上記水酸基が結合しているエチレン基量は、例えば、JIS K6728「ポリビニルブチラール試験方法」に準拠した方法により、上記ポリビニルアセタールXの水酸基が結合しているエチレン基量を測定することにより求めることができる。
上記保護層は、例えば、ポリビニルアセタールYと可塑剤とを含有することが好ましく、ポリビニルアセタールXより水酸基量が大きいポリビニルアセタールYと可塑剤とを含有することがより好ましい。
上記ポリビニルアルコールは、通常、ポリ酢酸ビニルをけん化することにより得られる。また、上記ポリビニルアルコールの重合度の好ましい下限は200、好ましい上限は5000である。上記ポリビニルアルコールの重合度を200以上とすることにより、合わせガラス用中間膜の耐貫通性を向上させることができ、5000以下とすることにより、保護層の成形性を確保することができる。上記ポリビニルアルコールの重合度のより好ましい下限は500、より好ましい上限は4000である。
上記炭素数が3~4のアルデヒドとしては、直鎖状のアルデヒドであってもよいし、分枝状のアルデヒドであってもよく、例えば、n-ブチルアルデヒド等が挙げられる。
また、合わせガラスの遮音性がより一層向上することから、上記遮音層におけるポリビニルアセタールX100質量部に対する、可塑剤の含有量(以下、含有量Xともいう。)は、上記保護層におけるポリビニルアセタールY100質量部に対する、可塑剤の含有量(以下、含有量Yともいう。)より多いことが好ましく、5質量部以上多いことがより好ましく、15質量部以上多いことが更に好ましく、20質量部以上多いことが特に好ましい。含有量X及び含有量Yを調整することにより、上記遮音層のガラス転移温度が低くなる。結果として、合わせガラスの遮音性がより一層向上する。
上記保護層の厚みのより好ましい下限は300μm、より好ましい上限は700μmである。
本発明において合わせガラス用中間膜の少なくとも一方の表面に多数の凹部と多数の凸部とを形成する方法としては、例えば、エンボスロール法、カレンダーロール法、異形押出法、メルトフラクチャー法等が挙げられる。なかでも、エンボスロール法が好適である。
上記ガラス板は、一般に使用されている透明板ガラスを使用することができる。例えば、フロート板ガラス、磨き板ガラス、型板ガラス、網入りガラス、線入り板ガラス、着色された板ガラス、熱線吸収ガラス、熱線反射ガラス、グリーンガラス等の無機ガラスが挙げられる。また、ガラスの表面に紫外線遮蔽コート層が形成された紫外線遮蔽ガラスも用いることができる。更に、ポリエチレンテレフタレート、ポリカーボネート、ポリアクリレート等の有機プラスチックス板を用いることもできる。
上記ガラス板として、2種類以上のガラス板を用いてもよい。例えば、透明フロート板ガラスと、グリーンガラスのような着色されたガラス板との間に、本発明の合わせガラス用中間膜を積層した合わせガラスが挙げられる。また、上記ガラス板として、2種以上の厚さの異なるガラス板を用いてもよい。
ニップロール法では、少なくとも2枚のガラス板の間に合わせガラス用中間膜が積層された積層体を、コンベアを用いて搬送しながら、該積層体を、加熱ゾーンを通過させることで、一定の温度に加熱した後、ニップロールを通してガラスと中間膜との間に残留する空気を扱きだしながら除去すると同時に、熱圧着させ、積層体の中間膜とガラス間の空気を低減させて密着させる。
なお、上記積層体を、コンベアを用いて搬送する際に、本発明の合わせガラス用中間膜の上記刻線状の凹部の傾きをコンベアによる流れ方向に対して55°以下となるようにすることが好ましい。これにより、コンベアによる移動時に該積層体においてガラスと合わせガラス用中間膜とがずれてしまうのを防止することができ、高い生産効率を実現することができる。コンベアを用いて搬送する際の、本発明の合わせガラス用中間膜の上記刻線状の凹部の傾きは、コンベアによる流れ方向に対して45°以下であることがより好ましく、25°以下であることが更に好ましい。
(1)合わせガラス用中間膜の調製
平均重合度が1700のポリビニルアルコールをn-ブチルアルデヒドでアセタール化することにより得られたポリビニルブチラール(アセチル基量1モル%、ブチラール基量69モル%、水酸基量30モル%)100重量部に対して、可塑剤としてトリエチレングリコール-ジ-2-エチルヘキサノエート(3GO)を40重量部、接着力調整剤としてビス(2-エチル酪酸)マグネシウムと酢酸マグネシウムの50質量%:50質量%混合物を膜中におけるマグネシウム濃度が50ppmとなるように添加し、ミキシングロールで充分に混練し、樹脂組成物を得た。
得られた樹脂組成物を、押出機を用いて押出することにより、厚さ760μmの単層構造の合わせガラス用中間膜を得た。
第二の工程として、三角形斜線型ミルを用いて表面に彫刻加工を施した金属ロールと65~75のJIS硬度を有するゴムロールとからなる一対のロールを凹凸形状転写装置として用い、得られた合わせガラス用中間膜をこの凹凸形状転写装置に通し、合わせガラス用中間膜の一方の表面に底部が連続した溝形状(刻線状)である凹部が平行して等間隔に形成された凹凸を付与した。このときの転写条件として、合わせガラス用中間膜の温度を70℃、ロール温度を145℃、線速を10m/分、プレス線圧は5~100kN/mとした。また、刻線賦型後の膜厚みを測定したところ、巾方向のおよび流れ方向の膜厚みは760μm、最大厚みと最少厚みの差は25μm、厚みプロファイルを測定方向に15cmずつに区切り、区間毎に最大厚みと最少厚みの差を記録したところ、最も差が大きい区間での厚み差は10μmであった。
JIS B-0601(1994)に準じる方法により、得られた合わせガラス用中間膜の表面における刻線状の凹部の間隔Sm、回転半径R及び刻線状の凹部の粗さRzを測定した。なお、測定方向は刻線に対して垂直方向とし、カットオフ値=2.5mm、基準長さ=2.5mm、評価長さ=12.5mm、触針の先端半径=2μm、先端角度=60°、測定速度=0.5mm/sの条件で測定を行った。
また、刻線状の凹部の間隔を光学顕微鏡(SONIC社製「BS-D8000III」)を用いて、合わせガラス用中間膜の表面を観察範囲20mm×20mmでそれぞれ5箇所を観察し、隣接する凹部の間隔を測定したうえで、隣接する凹部の最底部間の最短距離の平均値を算出することにより測定した。
また、合わせガラス用中間膜を片刃カミソリ(フェザー安全カミソリ社製、FAS-10)を用いて刻線状の凹部の方向に対して垂直方向、かつ、膜厚み方向に平行に切断面を変形させないように、カミソリを凹部と垂直方向に滑らせることなく、厚み方向に平行方向に押し出すことで切断し、その断面をマイクロスコープ(オリンパス社製「DSX-100」)を用いて観察した。上記断面を、測定倍率を208倍にて撮影し、更に撮影画像を50μm/20mmになるように拡大表示させた状態で、刻線状の凹部の底部に内接する円を描いたときの該円の半径(即ち、回転半径R)を求めた。第一の工程後の膜表面のRzは15μmであった。
合わせガラス用中間膜の表面及び裏面の凹凸についての測定値を表1に示した。
用いるポリビニルブチラールのアセチル基量、ブチラール基量及び水酸基量を表1及び表2に示すように変更し、第一の工程のエンボスロールの形状、三角形斜線型ロールを変更することにより付与する凹凸の形状を変更した以外は、実施例1と同様にして合わせガラス用中間膜を調製した。実施例及び比較例で得られた合わせガラス用中間膜の表面及び裏面の凹凸についての測定値を表1及び表2に示した。
(保護層用樹脂組成物の調製)
ポリビニルブチラール樹脂(水酸基の含有率30モル%、アセチル化度1モル%、ブチラール化度69モル%、平均重合度1700)100重量部に対し、可塑剤としてトリエチレングリコール-ジ-2-エチルヘキサノエート(3GO)36重量部と、接着力調整剤としてビス(2-エチル酪酸)マグネシウムと酢酸マグネシウムの50質量%:50質量%混合物を膜中におけるマグネシウム濃度が50ppmとなるように添加し、ミキシングロールで充分に混練し、保護層用樹脂組成物を得た。
ポリビニルブチラール樹脂(水酸基の含有率23.5モル%、アセチル化度12.5モル%、ブチラール化度64モル%、平均重合度2300)100重量部に対し、可塑剤としてトリエチレングリコール-ジ-2-エチルヘキサノエート(3GO)76.5重量部を添加し、ミキシングロールで充分に混練し、遮音層用樹脂組成物を得た。
遮音層用樹脂組成物及び保護層用樹脂組成物を共押出することにより、幅が100cmで厚さ方向に保護層(厚さ350μm)、遮音層(厚さ100μm)、保護層(厚さ350μm)の順に積層された三層構造の合わせガラス用中間膜を得た。
第二の工程として、三角形斜線型ミルを用いて表面に彫刻加工を施した金属ロールと65~75のJIS硬度を有するゴムロールとからなる一対のロールを凹凸形状転写装置として用い、得られた合わせガラス用中間膜をこの凹凸形状転写装置に通し、合わせガラス用中間膜の一方の表面に底部が連続した溝形状(刻線状)である凹部が平行して等間隔に形成された凹凸を付与した。このときの転写条件として、合わせガラス用中間膜の温度を70℃、ロール温度を145℃、線速を10m/分、プレス線圧は5~100kN/mとした。また、刻線賦型後の膜厚みを測定したところ、巾方向のおよび流れ方向の膜厚みは800μm、最大厚みと最少厚みの差は25μm、厚みプロファイルを測定方向に15cmずつに区切り、区間毎に最大厚みと最少厚みの差を記録したところ、最も差が大きい区間での厚み差は10μmであった。
JIS B-0601(1994)に準じる方法により、得られた合わせガラス用中間膜の表面における刻線状の凹部の間隔Sm、回転半径R及び刻線状の凹部の粗さRzを測定した。なお、測定方向は刻線に対して垂直方向とし、カットオフ値=2.5mm、基準長さ=2.5mm、評価長さ=12.5mm、触針の先端半径=2μm、先端角度=60°、測定速度=0.5mm/sの条件で測定を行った。
また、刻線状の凹部の間隔を光学顕微鏡(SONIC社製「BS-D8000III」)を用いて、合わせガラス用中間膜の表面を観察範囲20mm×20mmでそれぞれ5箇所を観察し、隣接する凹部の間隔を測定したうえで、隣接する凹部の最底部間の最短距離の平均値を算出することにより測定した。
また、合わせガラス用中間膜を片刃カミソリ(フェザー安全カミソリ社製、FAS-10)を用いて刻線状の凹部の方向に対して垂直方向、かつ、膜厚み方向に平行に切断面を変形させないように、カミソリを凹部と垂直方向に滑らせることなく、厚み方向に平行方向に押し出すことで切断し、その断面をマイクロスコープ(オリンパス社製「DSX-100」)を用いて観察した。上記断面を、測定倍率を208倍にて撮影し、更に撮影画像を50μm/20mmになるように拡大表示させた状態で、刻線状の凹部の底部に内接する円を描いたときの該円の半径(即ち、回転半径R)を求めた。第一の工程後の膜表面のRzは15μmであった。
合わせガラス用中間膜の表面及び裏面の凹凸についての測定値を表3に示した。
合わせガラスを作製した後、温度25℃、湿度30%の環境下で4週間静置した。その後、合わせガラスを液体窒素により冷却することでガラスと合わせガラス用中間膜を引き剥がした。得られた保護層及び遮音層を、厚さ方向に切断し、温度25℃、湿度30%の環境下に2時間静置した後、保護層と遮音層との間に指又は機械を入れ、温度25℃、湿度30%の環境下で剥離し、保護層および遮音層それぞれについて10gの長方形状の測定試料を得た。測定試料について、ソックスレー抽出器を用いて12時間、ジエチルエーテルで可塑剤を抽出した後、測定試料中の可塑剤の定量を行い、保護層及び中間層中の可塑剤の含有量を求めた。
用いるポリビニルブチラールのアセチル基量、ブチラール基量及び水酸基量を表3に示すように変更し、第一の工程のエンボスロールの形状、三角形斜線型ロールを変更することにより付与する凹凸の形状を変更した以外は、実施例14と同様にして合わせガラス用中間膜を調製した。実施例及び比較例で得られた合わせガラス用中間膜の表面及び裏面の凹凸についての測定値を表3に示した。
実施例及び比較例で得られた合わせガラス用中間膜について、以下の方法により評価を行った。
結果を表1、表2及び表3に示した。
(1)予備圧着後に残存したエンボス形状の評価
実施例及び比較例で得られた合わせガラス用中間膜を、23℃、30RH%の環境下で5時間置いた後、以後の操作に供した。
合わせガラス用中間膜を二枚のクリアガラス板(縦15cm×横30cm×厚さ2.5mm)の間に挟み積層体とし、第一のニップロール(ロール圧力2kgf/cm2)にて1次脱気して積層体を得た。更にその積層体をローラーコンベアで搬送しながら赤外線オーブン内を通過させて表面温度が50℃になるように加熱した後に第2のニップロール(ロール圧力4kgf/cm2)で2次脱気して積層体を得た。
得られた積層体を更にローラーコンベア上に載せて搬送し、赤外線オーブンの内を通過させて積層体のガラス表面温度が85℃になるように加熱した後に、第3のニップロール(ロール圧力4kgf/cm2)を通して扱くことにより、ガラス板と中間膜との間に残留する空気を脱気しながら3次脱気を行い、予備圧着を完了した。各ニップロールを通す際のニップロール間の間隙は積層体の厚みより1mm狭く、ニップロールの周速度は5m/minになるようにした。なお、合わせガラス用中間膜の表面に形成された刻線状の凹部とコンベアの流れ方向との角度を表1、表2及び表3に示した。
測定点は、ローラーコンベアで搬送した際の進行方向側のガラス端部から10~20cmの間、左右のガラス端部から3cm離れた領域内を20点測定した。一つ当たりの測定視野は1.3mm×1.3mmとした。
得られた3次元形状より、3次元表面形状測定機に付属する解析ソフトの「Multivision解析により残存した溝形状の体積を計測した。体積を算出する際の基準面は、ガラスと膜の剥離面として、Multivision解析条件内の「ZeroLevel」条件を「BackGround」として「By Threshold」項目の値を調整することで設定した。
面積当たりの平均溝体積を算出し、計測した20点の平均が1.5μm3/μm2(=μm)を超えるものを「×」、1.0μm3/μm2(=μm)以上1.5μm3/μm2(=μm)以下のものを「〇」と評価し、1.0μm3/μm2(=μm)未満のものを「○○」と評価した。なお平均溝体積は同一点の表面と裏面の溝体積の平均値である。
実施例及び比較例で得られた合わせガラス用中間膜を、23℃、30RH%の環境下で5時間置いた後、以後の操作に供した。
合わせガラス用中間膜を二枚のクリアガラス板(縦15cm×横30cm×厚さ2.5mm)の間に挟み積層体とし、第一のニップロール(ロール圧力2kgf/cm2)にて1次脱気して積層体を得た。更にその積層体をローラーコンベアで搬送しながら赤外線オーブン内を通過させて表面温度が50℃になるように加熱した後に第2のニップロール(ロール圧力4kgf/cm2)で2次脱気して積層体を得た。
実施例及び比較例で得られた合わせガラス用中間膜を、23℃、30RH%の環境下で5時間置いた後、以後の操作に供した。
合わせガラス用中間膜を二枚のクリアガラス板(縦15cm×横30cm×厚さ2.5mm)の間に挟み積層体とし、第一のニップロール(ロール圧力2kgf/cm2)にて1次脱気して積層体を得た。更にその積層体をローラーコンベアで搬送しながら赤外線オーブン内を通過させて表面温度が70℃になるように加熱した後に第2のニップロール(ロール圧力4kgf/cm2)で2次脱気して積層体を得た。
各ニップロールを通す際のニップロール間の間隙は積層体の厚みより1mm狭く、ニップロールの周速度は5m/minになるようにした。なお、合わせガラス用中間膜の表面に形成された刻線状の凹部とコンベアの流れ方向との角度を表1、表2及び表3に示した。
実施例及び比較例で得られた合わせガラス用中間膜を、23℃、30RH%の環境下で5時間置いた後、以後の操作に供した。
合わせガラス用中間膜を二枚のクリアガラス板(縦15cm×横30cm×厚さ2.5mm)の間に挟み積層体とし、第一のニップロール(ロール圧力2kgf/cm2)にて1次脱気して積層体を得た。更にその積層体をローラーコンベアで搬送しながら赤外線オーブン内を通過させて表面温度が60℃になるように加熱した後に第2のニップロール(ロール圧力4kgf/cm2)で2次脱気して積層体を得た。
各ニップロールを通す際のニップロール間の間隙は積層体の厚みより1mm狭く、ニップロールの周速度は5m/minになるようにした。なお、合わせガラス用中間膜の表面に形成された刻線状の凹部とコンベアの流れ方向との角度を表1、表2及び表3に示した。
更に合わせガラスをオーブン中で140℃、2時間保管後、オーブンから取り出して3時間放冷した後、合わせガラスの外観を目視で観察した。各20枚についてガラス板と合わせガラス用中間膜との間に発泡(気泡)が生じた枚数を調べて、ガラス端部から1cm以上離れた領域に気泡が発生しているかどうか判定した。気泡枚数が5枚以下であった場合を「○」と、発泡枚数が6枚以上であった場合を「×」と評価した。
(真空バック方式での予備圧着後脱気性の評価)
得られた合わせガラス用中間膜を二枚のクリアガラス板(縦15cm×横15cm×厚さ2.5mm)の間に挟み、はみ出た部分を切り取り、積層体を得た。得られた積層体をガラスの表面温度が50℃になるまでオーブン内で予備加熱した後、ゴムバッグ内に移し、ゴムバッグを吸引減圧機に接続し、加熱すると同時に-600mmHgの減圧下で保持しながら、積層体の温度(予備圧着温度)が18分間で90℃となるように加熱した後、大気圧に戻して予備圧着を終了して、予備脱気後積層体を得た。
即ち、JIS K 7105に準拠して、予備脱気後積層体の平行光線透過率Tp(%)を、ヘーズメーター(村上色彩技術研究所社製、HM-150)を用いて測定した。
測定位置は予備脱気後積層体の2つの対角線が交差する中央部、予備脱気後積層体の各頂点から対角線方向に5.6cm離れた4点を合わせた5点として、その平均値をTpとした。
測定前に上記測定点を中心に測定値に影響を与えない範囲の大きさに積層体から切り出し、測定用サンプルとした。
なお、合わせガラスの透明性の低下は、予備圧着時における脱気不良に起因する。従って、合わせガラス用中間膜の脱気性は、合わせガラスの発泡性等を評価するよりも、予備脱気後積層体の可視光線透過率を測定することにより、より精密に評価することができる。
Claims (4)
- 少なくとも一方の表面に、多数の凹部と多数の凸部とを有し、前記凹部は、底部が連続した溝形状を有し、隣接する前記凹部が平行して規則的に並列している合わせガラス用中間膜であって、
前記底部が連続した溝形状の凹部の間隔Smに対する前記底部が連続した溝形状の凹部の底部の回転半径Rの比率(R/Sm×100)が15%以上である
ことを特徴とする合わせガラス用中間膜。 - 底部が連続した溝形状の凹部の底部の回転半径Rが20~250μmであることを特徴とする請求項1記載の合わせガラス用中間膜。
- 底部が連続した溝形状の凹部の間隔Smが100~400μmであることを特徴とする請求項1又は2記載の合わせガラス用中間膜。
- 請求項1、2又は3記載の合わせガラス用中間膜が、一対のガラス板の間に積層されていることを特徴とする合わせガラス。
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2016
- 2016-03-16 TW TW109102262A patent/TW202019671A/zh unknown
- 2016-03-16 TW TW105108001A patent/TWI716387B/zh active
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2017
- 2017-03-22 MX MX2023005869A patent/MX2023005869A/es unknown
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2020
- 2020-01-28 JP JP2020011630A patent/JP6859466B2/ja active Active
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JPH09295839A (ja) * | 1996-03-07 | 1997-11-18 | Sekisui Chem Co Ltd | 合わせガラス用中間膜 |
JP2002037648A (ja) * | 2000-07-27 | 2002-02-06 | Sekisui Chem Co Ltd | 合わせガラス用中間膜及び合わせガラス |
JP2002104846A (ja) * | 2000-07-27 | 2002-04-10 | Sekisui Chem Co Ltd | 合わせガラス用中間膜 |
Non-Patent Citations (1)
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See also references of EP3202729A4 * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2018168904A1 (ja) * | 2017-03-15 | 2020-01-16 | 積水化学工業株式会社 | 合わせガラス用中間膜及び合わせガラス |
JP7221690B2 (ja) | 2017-03-15 | 2023-02-14 | 積水化学工業株式会社 | 合わせガラス用中間膜 |
JP2021084854A (ja) * | 2019-11-29 | 2021-06-03 | チャン チュン ペトロケミカル カンパニー リミテッド | ポリマーフィルムおよびその用途 |
JP2021084855A (ja) * | 2019-11-29 | 2021-06-03 | チャン チュン ペトロケミカル カンパニー リミテッド | ポリマーフィルムおよびその用途 |
US11136441B2 (en) | 2019-11-29 | 2021-10-05 | Chang Chun Petrochemical Co., Ltd. | Polymer film and uses of the same |
JP7065143B2 (ja) | 2019-11-29 | 2022-05-11 | チャン チュン ペトロケミカル カンパニー リミテッド | ポリマーフィルムおよびその用途 |
JP7065142B2 (ja) | 2019-11-29 | 2022-05-11 | チャン チュン ペトロケミカル カンパニー リミテッド | ポリマーフィルムおよびその用途 |
US11426981B2 (en) | 2019-11-29 | 2022-08-30 | Chang Chun Petrochemical Co., Ltd. | Polymer film and uses of the same |
Also Published As
Publication number | Publication date |
---|---|
JP6683477B2 (ja) | 2020-04-22 |
KR102378647B1 (ko) | 2022-03-24 |
JP6859466B2 (ja) | 2021-04-14 |
RU2709271C2 (ru) | 2019-12-17 |
EP3202729B1 (en) | 2024-06-12 |
RU2017114983A3 (ja) | 2019-05-06 |
KR20170066278A (ko) | 2017-06-14 |
EP3202729A4 (en) | 2018-04-18 |
TW202019671A (zh) | 2020-06-01 |
US20170157898A1 (en) | 2017-06-08 |
MX2017003743A (es) | 2017-06-30 |
CN106164006A (zh) | 2016-11-23 |
JP2020073450A (ja) | 2020-05-14 |
TW201711838A (en) | 2017-04-01 |
EP4385728A2 (en) | 2024-06-19 |
JPWO2016052666A1 (ja) | 2017-07-13 |
US10471686B2 (en) | 2019-11-12 |
MX2023005869A (es) | 2023-06-05 |
CN106164006B (zh) | 2020-05-22 |
RU2017114983A (ru) | 2018-11-05 |
EP3202729A1 (en) | 2017-08-09 |
EP4385728A3 (en) | 2024-09-25 |
TWI716387B (zh) | 2021-01-21 |
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