JP7408655B2 - ポリビニルアルコールフィルム及びそれを用いた偏光フィルムの製造方法 - Google Patents
ポリビニルアルコールフィルム及びそれを用いた偏光フィルムの製造方法 Download PDFInfo
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- JP7408655B2 JP7408655B2 JP2021526866A JP2021526866A JP7408655B2 JP 7408655 B2 JP7408655 B2 JP 7408655B2 JP 2021526866 A JP2021526866 A JP 2021526866A JP 2021526866 A JP2021526866 A JP 2021526866A JP 7408655 B2 JP7408655 B2 JP 7408655B2
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- film
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- surfactant
- polyvinyl alcohol
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- 238000004043 dyeing Methods 0.000 claims description 11
- 229910052783 alkali metal Inorganic materials 0.000 claims description 10
- 150000001340 alkali metals Chemical class 0.000 claims description 10
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- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 4
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- 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 3
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- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
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- UWHCKJMYHZGTIT-UHFFFAOYSA-N Tetraethylene glycol, Natural products OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 description 2
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 2
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- 125000004018 acid anhydride group Chemical group 0.000 description 2
- 150000008065 acid anhydrides Chemical class 0.000 description 2
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- 239000007864 aqueous solution Substances 0.000 description 2
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- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 2
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- 150000001639 boron compounds Chemical class 0.000 description 2
- 229920006217 cellulose acetate butyrate Polymers 0.000 description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- FJKIXWOMBXYWOQ-UHFFFAOYSA-N ethenoxyethane Chemical compound CCOC=C FJKIXWOMBXYWOQ-UHFFFAOYSA-N 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
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- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- POSICDHOUBKJKP-UHFFFAOYSA-N prop-2-enoxybenzene Chemical compound C=CCOC1=CC=CC=C1 POSICDHOUBKJKP-UHFFFAOYSA-N 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
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- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 2
- FFJCNSLCJOQHKM-CLFAGFIQSA-N (z)-1-[(z)-octadec-9-enoxy]octadec-9-ene Chemical compound CCCCCCCC\C=C/CCCCCCCCOCCCCCCCC\C=C/CCCCCCCC FFJCNSLCJOQHKM-CLFAGFIQSA-N 0.000 description 1
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- QJJDJWUCRAPCOL-UHFFFAOYSA-N 1-ethenoxyoctadecane Chemical compound CCCCCCCCCCCCCCCCCCOC=C QJJDJWUCRAPCOL-UHFFFAOYSA-N 0.000 description 1
- OVGRCEFMXPHEBL-UHFFFAOYSA-N 1-ethenoxypropane Chemical compound CCCOC=C OVGRCEFMXPHEBL-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
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- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 description 1
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- WDQMWEYDKDCEHT-UHFFFAOYSA-N 2-ethylhexyl 2-methylprop-2-enoate Chemical compound CCCCC(CC)COC(=O)C(C)=C WDQMWEYDKDCEHT-UHFFFAOYSA-N 0.000 description 1
- RUMACXVDVNRZJZ-UHFFFAOYSA-N 2-methylpropyl 2-methylprop-2-enoate Chemical compound CC(C)COC(=O)C(C)=C RUMACXVDVNRZJZ-UHFFFAOYSA-N 0.000 description 1
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- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
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- UYMKPFRHYYNDTL-UHFFFAOYSA-N ethenamine Chemical class NC=C UYMKPFRHYYNDTL-UHFFFAOYSA-N 0.000 description 1
- YCUBDDIKWLELPD-UHFFFAOYSA-N ethenyl 2,2-dimethylpropanoate Chemical compound CC(C)(C)C(=O)OC=C YCUBDDIKWLELPD-UHFFFAOYSA-N 0.000 description 1
- GLVVKKSPKXTQRB-UHFFFAOYSA-N ethenyl dodecanoate Chemical compound CCCCCCCCCCCC(=O)OC=C GLVVKKSPKXTQRB-UHFFFAOYSA-N 0.000 description 1
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- AFSIMBWBBOJPJG-UHFFFAOYSA-N ethenyl octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC=C AFSIMBWBBOJPJG-UHFFFAOYSA-N 0.000 description 1
- BLZSRIYYOIZLJL-UHFFFAOYSA-N ethenyl pentanoate Chemical compound CCCCC(=O)OC=C BLZSRIYYOIZLJL-UHFFFAOYSA-N 0.000 description 1
- UIWXSTHGICQLQT-UHFFFAOYSA-N ethenyl propanoate Chemical compound CCC(=O)OC=C UIWXSTHGICQLQT-UHFFFAOYSA-N 0.000 description 1
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 1
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 238000007602 hot air drying Methods 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 150000002497 iodine compounds Chemical class 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- PBOSTUDLECTMNL-UHFFFAOYSA-N lauryl acrylate Chemical compound CCCCCCCCCCCCOC(=O)C=C PBOSTUDLECTMNL-UHFFFAOYSA-N 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 125000005641 methacryl group Chemical group 0.000 description 1
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 1
- 125000005397 methacrylic acid ester group Chemical group 0.000 description 1
- XJRBAMWJDBPFIM-UHFFFAOYSA-N methyl vinyl ether Chemical compound COC=C XJRBAMWJDBPFIM-UHFFFAOYSA-N 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- WFKDPJRCBCBQNT-UHFFFAOYSA-N n,2-dimethylprop-2-enamide Chemical compound CNC(=O)C(C)=C WFKDPJRCBCBQNT-UHFFFAOYSA-N 0.000 description 1
- 229940088644 n,n-dimethylacrylamide Drugs 0.000 description 1
- YLGYACDQVQQZSW-UHFFFAOYSA-N n,n-dimethylprop-2-enamide Chemical compound CN(C)C(=O)C=C YLGYACDQVQQZSW-UHFFFAOYSA-N 0.000 description 1
- QQGJWWNPACORPU-UHFFFAOYSA-N n,n-dimethylpropan-1-amine;prop-2-enamide Chemical compound NC(=O)C=C.CCCN(C)C QQGJWWNPACORPU-UHFFFAOYSA-N 0.000 description 1
- OMNKZBIFPJNNIO-UHFFFAOYSA-N n-(2-methyl-4-oxopentan-2-yl)prop-2-enamide Chemical compound CC(=O)CC(C)(C)NC(=O)C=C OMNKZBIFPJNNIO-UHFFFAOYSA-N 0.000 description 1
- DNTMQTKDNSEIFO-UHFFFAOYSA-N n-(hydroxymethyl)-2-methylprop-2-enamide Chemical compound CC(=C)C(=O)NCO DNTMQTKDNSEIFO-UHFFFAOYSA-N 0.000 description 1
- RQAKESSLMFZVMC-UHFFFAOYSA-N n-ethenylacetamide Chemical compound CC(=O)NC=C RQAKESSLMFZVMC-UHFFFAOYSA-N 0.000 description 1
- ZQXSMRAEXCEDJD-UHFFFAOYSA-N n-ethenylformamide Chemical compound C=CNC=O ZQXSMRAEXCEDJD-UHFFFAOYSA-N 0.000 description 1
- ZIWDVJPPVMGJGR-UHFFFAOYSA-N n-ethyl-2-methylprop-2-enamide Chemical compound CCNC(=O)C(C)=C ZIWDVJPPVMGJGR-UHFFFAOYSA-N 0.000 description 1
- SWPMNMYLORDLJE-UHFFFAOYSA-N n-ethylprop-2-enamide Chemical compound CCNC(=O)C=C SWPMNMYLORDLJE-UHFFFAOYSA-N 0.000 description 1
- YPHQUSNPXDGUHL-UHFFFAOYSA-N n-methylprop-2-enamide Chemical compound CNC(=O)C=C YPHQUSNPXDGUHL-UHFFFAOYSA-N 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- HMZGPNHSPWNGEP-UHFFFAOYSA-N octadecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)C(C)=C HMZGPNHSPWNGEP-UHFFFAOYSA-N 0.000 description 1
- FSAJWMJJORKPKS-UHFFFAOYSA-N octadecyl prop-2-enoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)C=C FSAJWMJJORKPKS-UHFFFAOYSA-N 0.000 description 1
- 229920002114 octoxynol-9 Polymers 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- HVAMZGADVCBITI-UHFFFAOYSA-M pent-4-enoate Chemical compound [O-]C(=O)CCC=C HVAMZGADVCBITI-UHFFFAOYSA-M 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920000259 polyoxyethylene lauryl ether Polymers 0.000 description 1
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- AAYRWMCIKCRHIN-UHFFFAOYSA-N propane-1-sulfonic acid;prop-2-enamide Chemical compound NC(=O)C=C.CCCS(O)(=O)=O AAYRWMCIKCRHIN-UHFFFAOYSA-N 0.000 description 1
- NHARPDSAXCBDDR-UHFFFAOYSA-N propyl 2-methylprop-2-enoate Chemical compound CCCOC(=O)C(C)=C NHARPDSAXCBDDR-UHFFFAOYSA-N 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- BQHRKYUXVHKLLZ-UHFFFAOYSA-M sodium 7-amino-2-[[4-[(4-aminophenyl)diazenyl]-2-methoxy-5-methylphenyl]diazenyl]-3-sulfonaphthalen-1-olate Chemical compound [Na+].COc1cc(N=Nc2ccc(N)cc2)c(C)cc1N=Nc1c(O)c2cc(N)ccc2cc1S([O-])(=O)=O BQHRKYUXVHKLLZ-UHFFFAOYSA-M 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 125000003011 styrenyl group Chemical group [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- SJMYWORNLPSJQO-UHFFFAOYSA-N tert-butyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC(C)(C)C SJMYWORNLPSJQO-UHFFFAOYSA-N 0.000 description 1
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 description 1
- VRVDFJOCCWSFLI-UHFFFAOYSA-K trisodium 3-[[4-[(6-anilino-1-hydroxy-3-sulfonatonaphthalen-2-yl)diazenyl]-5-methoxy-2-methylphenyl]diazenyl]naphthalene-1,5-disulfonate Chemical compound [Na+].[Na+].[Na+].COc1cc(N=Nc2cc(c3cccc(c3c2)S([O-])(=O)=O)S([O-])(=O)=O)c(C)cc1N=Nc1c(O)c2ccc(Nc3ccccc3)cc2cc1S([O-])(=O)=O VRVDFJOCCWSFLI-UHFFFAOYSA-K 0.000 description 1
- KOZCZZVUFDCZGG-UHFFFAOYSA-N vinyl benzoate Chemical compound C=COC(=O)C1=CC=CC=C1 KOZCZZVUFDCZGG-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/06—Ethers; Acetals; Ketals; Ortho-esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
- C08L29/02—Homopolymers or copolymers of unsaturated alcohols
- C08L29/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2329/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2329/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2329/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2471/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
- C08J2471/02—Polyalkylene oxides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/20—Carboxylic acid amides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
Landscapes
- Chemical & Material Sciences (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Polarising Elements (AREA)
Description
PVA(A)としては、ビニルエステルを重合して得られるビニルエステル系重合体をけん化することにより製造されたものを使用することができる。ビニルエステルとしては、例えば、ギ酸ビニル、酢酸ビニル、プロピオン酸ビニル、バレリン酸ビニル、ラウリン酸ビニル、ステアリン酸ビニル、安息香酸ビニル、ピバリン酸ビニル、バーサティック酸ビニル等を挙げることができる。これらは1種類を単独で使用してもよいし、2種類以上を併用してもよいが前者が好ましい。入手性、コスト、PVA(A)の生産性などの観点からビニルエステルとして酢酸ビニルが好ましい。
重合度 = ([η]×104/8.29)(1/0.62)
本発明で用いられるノニオン型界面活性剤(B)の種類は特に限定されず、ポリオキシエチレンオレイルエーテル、ポリオキシエチレンラウリルエーテル等のアルキルエーテル型;ポリオキシエチレンオクチルフェニルエーテル等のアルキルフェニルエーテル型;ポリオキシエチレンラウレート等のアルキルエステル型;ポリオキシエチレンラウリルアミノエーテル等のアルキルアミン型;ポリオキシエチレンラウリン酸アミド等のアルキルアミド型;ポリオキシエチレンポリオキシプロピレンエーテル等のポリプロピレングリコールエーテル型;ラウリン酸ジエタノールアミド、オレイン酸ジエタノールアミド等の脂肪族アルカノールアミド型;ポリオキシアルキレンアリルフェニルエーテル等のアリルフェニルエーテル型などが挙げられる。これらの中でも、脂肪族アルカノールアミド型、アルキルエーテル型、又はアルキルアミン型が好適であり、脂肪族アルカノールアミド型、又はアルキルエーテル型がより好適であり、脂肪族アルカノールアミド型がさらに好適である。脂肪族アルカノールアミド型としては、3級アミド型の脂肪族アルカノールアミド及び2級アミド型の脂肪族アルカノールアミドが挙げられる。活性剤凝集物の個数が少なく、Hazeの値が低くなる観点から、下記式(b1)で表される2級アミド型の脂肪族アルカノールアミドが好適に用いられる。
本発明においては、界面活性剤(C)が下記式(I)又は(II)から選択される少なくとも一種であることが重要である。
PVAフィルムに柔軟性を付与させることができる観点から、本発明のPVAフィルムは可塑剤を含有することが好ましい。好ましい可塑剤としては多価アルコールが挙げられ、具体的には、エチレングリコール、グリセリン、プロピレングリコール、ジエチレングリコール、トリエチレングリコール、テトラエチレングリコール、トリメチロールプロパン等を挙げることができる。これらは1種の可塑剤のみを用いてもよいし、2種以上の可塑剤を併用してもよい。中でも、PVA(A)との相溶性や入手性などの観点から、エチレングリコールまたはグリセリンが好ましい。
測定対象となるPVAフィルムロールの表層側から10mの領域を切り出し、幅方向に5cm、長さ方向に5cm、厚みが60μmの正方形のサンプルを切り出した。その後、スガ試験機株式会社製のヘーズメーター「HZ-1」を用い、ASTM D1003-61に従って全光線透過率Tt及び拡散透過率Tdを測定し、Hazeを下式より算出した。
Haze=Td/Tt×100
測定対象となるPVAフィルムロールの表層側から10mの領域を切り出し、幅方向に1.5cm、長さ方向に1.5cm、厚みが60μmの正方形のサンプルを切り出した。その後、微分干渉顕微鏡を用いて1000倍率にてフィルム厚み方向中心部の画像を撮影した。撮影した画像を「株式会社日本ローパー」社製画像解析ソフト「ImagePro」を用いて解析し、135μm×100μmの領域中の活性剤凝集物数を測定した。
4000m以上の長尺フィルムの製膜において、キャストドラムから膜を剥離する際に問題なく剥離できたものをa、ドラムへの付着で剥離できなかったものをbとして評価した。
切り出したPVAフィルムを暗室下で白色スクリーンと投影機の間に配置して、スクリーンに映る陰影を観察した。濃淡が見られず均一であればaとし、不連続な濃淡やスジ状の濃淡が確認できればbとした。なお、観察の際には、スクリーンと投影機との距離を360cmとし、スクリーンとPVAフィルムとの距離を10cmとした。
重合度2400、けん化度99.9モル%のPVAチップ100質量部を70℃の蒸留水2500質量部に24時間浸漬させた後、遠心脱水を行い、揮発分率70質量%のPVA含水チップを得た。当該PVA含水チップ333質量部(乾燥PVAは100質量部)に対して、グリセリン10質量部、ノニオン型界面活性剤(B)としてラウリン酸ジエタノールアミド0.27質量部、及び界面活性剤(C)としてポリオキシエチレンアルキルエーテルリン酸カリウム0.08質量部を混合した後、得られた混合物をベント付き二軸押出機で加熱溶融(最高温度130℃)して製膜原液とした。このとき用いた界面活性剤(C)は、上記式(I)におけるR1の炭素数(アルキル鎖長)が13であり、ポリオキシエチレン鎖数(n)が4であった。
ノニオン型界面活性剤(B)、及び界面活性剤(C)の種類・使用量を表1に示されるとおりに変更したこと以外は実施例1と同様にして、PVAフィルムの製造および評価を行った。結果を表1に示す。
Claims (7)
- ポリビニルアルコール(A)、ノニオン型界面活性剤(B)、及び下記式(I)又は(II)から選択される少なくとも一種の界面活性剤(C)を含有するポリビニルアルコールフィルムであって、
前記界面活性剤(B)の含有量が、ポリビニルアルコール(A)100質量部に対して0.04~0.4質量部であり、前記界面活性剤(C)の含有量が、ポリビニルアルコール(A)100質量部に対して0.06~0.2質量部であるポリビニルアルコールフィルム。
- 前記界面活性剤(B)と前記界面活性剤(C)との質量比率(B:C)が1:0.1~1:10である、請求項1又は2に記載のポリビニルアルコールフィルム。
- フィルムの幅が1.5m以上である、請求項1~3のいずれかに記載のポリビニルアルコールフィルム。
- フィルムの長さが3000m以上である、請求項1~4のいずれかに記載のポリビニルアルコールフィルム。
- フィルムの厚みが10~70μmである、請求項1~5のいずれかに記載のポリビニルアルコールフィルム。
- 請求項1~6のいずれかに記載のポリビニルアルコールフィルムを染色する工程及び延伸する工程を有する偏光フィルムの製造方法。
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JP2004263157A (ja) | 2003-02-28 | 2004-09-24 | Toho Chem Ind Co Ltd | 帯電防止性ポリ乳酸系樹脂組成物 |
JP2011144221A (ja) | 2010-01-12 | 2011-07-28 | Matsumoto Yushi Seiyaku Co Ltd | 未加硫ゴム用防着剤 |
JP2018090691A (ja) | 2016-12-01 | 2018-06-14 | 株式会社クラレ | ポリビニルアルコールフィルムおよびそれを用いた偏光フィルムの製造方法 |
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JP2004263157A (ja) | 2003-02-28 | 2004-09-24 | Toho Chem Ind Co Ltd | 帯電防止性ポリ乳酸系樹脂組成物 |
JP2011144221A (ja) | 2010-01-12 | 2011-07-28 | Matsumoto Yushi Seiyaku Co Ltd | 未加硫ゴム用防着剤 |
JP2018090691A (ja) | 2016-12-01 | 2018-06-14 | 株式会社クラレ | ポリビニルアルコールフィルムおよびそれを用いた偏光フィルムの製造方法 |
WO2019124310A1 (ja) | 2017-12-22 | 2019-06-27 | 株式会社クラレ | ポリビニルアルコールフィルム、フィルムロールおよびフィルムロールの製造方法 |
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CN113950506B (zh) | 2023-07-18 |
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