WO2009035127A1 - フィルム - Google Patents
フィルム Download PDFInfo
- Publication number
- WO2009035127A1 WO2009035127A1 PCT/JP2008/066800 JP2008066800W WO2009035127A1 WO 2009035127 A1 WO2009035127 A1 WO 2009035127A1 JP 2008066800 W JP2008066800 W JP 2008066800W WO 2009035127 A1 WO2009035127 A1 WO 2009035127A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- film
- acid
- polylactic acid
- component
- film according
- Prior art date
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- 229920000747 poly(lactic acid) Polymers 0.000 claims abstract description 106
- 239000004626 polylactic acid Substances 0.000 claims abstract description 104
- 238000002844 melting Methods 0.000 claims abstract description 62
- 230000008018 melting Effects 0.000 claims abstract description 60
- 239000013078 crystal Substances 0.000 claims abstract description 47
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 37
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 37
- 239000011342 resin composition Substances 0.000 claims abstract description 30
- 238000000113 differential scanning calorimetry Methods 0.000 claims abstract description 12
- JVTAAEKCZFNVCJ-UWTATZPHSA-N D-lactic acid Chemical compound C[C@@H](O)C(O)=O JVTAAEKCZFNVCJ-UWTATZPHSA-N 0.000 claims description 26
- 238000002425 crystallisation Methods 0.000 claims description 22
- 230000008025 crystallization Effects 0.000 claims description 21
- 229940022769 d- lactic acid Drugs 0.000 claims description 21
- 238000005259 measurement Methods 0.000 claims description 20
- 229920001432 poly(L-lactide) Polymers 0.000 claims description 19
- 229930182843 D-Lactic acid Natural products 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 4
- -1 poly(L-lactic acid) Polymers 0.000 abstract description 59
- 238000010438 heat treatment Methods 0.000 abstract description 22
- 230000008646 thermal stress Effects 0.000 abstract description 7
- 229920000118 poly(D-lactic acid) Polymers 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 135
- 239000002253 acid Substances 0.000 description 44
- 150000001875 compounds Chemical class 0.000 description 39
- 238000000034 method Methods 0.000 description 39
- 239000012071 phase Substances 0.000 description 37
- 238000004519 manufacturing process Methods 0.000 description 29
- 239000000203 mixture Substances 0.000 description 20
- 238000006116 polymerization reaction Methods 0.000 description 20
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 18
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 17
- 239000003795 chemical substances by application Substances 0.000 description 15
- 230000008859 change Effects 0.000 description 14
- JJTUDXZGHPGLLC-UHFFFAOYSA-N lactide Chemical compound CC1OC(=O)C(C)OC1=O JJTUDXZGHPGLLC-UHFFFAOYSA-N 0.000 description 14
- 229920005989 resin Polymers 0.000 description 14
- 239000011347 resin Substances 0.000 description 14
- 239000000463 material Substances 0.000 description 13
- 230000003287 optical effect Effects 0.000 description 13
- 125000000524 functional group Chemical group 0.000 description 11
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000002184 metal Substances 0.000 description 11
- 150000003839 salts Chemical class 0.000 description 11
- 230000000704 physical effect Effects 0.000 description 10
- 229920000642 polymer Polymers 0.000 description 10
- 150000002148 esters Chemical class 0.000 description 9
- 230000009477 glass transition Effects 0.000 description 9
- 239000004310 lactic acid Substances 0.000 description 9
- 235000014655 lactic acid Nutrition 0.000 description 9
- 239000000178 monomer Substances 0.000 description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 8
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 8
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 8
- 235000011007 phosphoric acid Nutrition 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 238000001816 cooling Methods 0.000 description 7
- 238000000465 moulding Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- IMSODMZESSGVBE-UHFFFAOYSA-N 2-Oxazoline Chemical compound C1CN=CO1 IMSODMZESSGVBE-UHFFFAOYSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 6
- 230000007062 hydrolysis Effects 0.000 description 6
- 238000006460 hydrolysis reaction Methods 0.000 description 6
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- 230000008569 process Effects 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 150000005846 sugar alcohols Polymers 0.000 description 6
- 229920002284 Cellulose triacetate Polymers 0.000 description 5
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 5
- 229920000297 Rayon Polymers 0.000 description 5
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000003822 epoxy resin Substances 0.000 description 5
- 239000012948 isocyanate Substances 0.000 description 5
- CCGKOQOJPYTBIH-UHFFFAOYSA-N ketene group Chemical group C=C=O CCGKOQOJPYTBIH-UHFFFAOYSA-N 0.000 description 5
- 229910001463 metal phosphate Inorganic materials 0.000 description 5
- 229920000647 polyepoxide Polymers 0.000 description 5
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 5
- 239000007790 solid phase Substances 0.000 description 5
- JJTUDXZGHPGLLC-IMJSIDKUSA-N 4511-42-6 Chemical compound C[C@@H]1OC(=O)[C@H](C)OC1=O JJTUDXZGHPGLLC-IMJSIDKUSA-N 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 4
- JVTAAEKCZFNVCJ-UHFFFAOYSA-M Lactate Chemical compound CC(O)C([O-])=O JVTAAEKCZFNVCJ-UHFFFAOYSA-M 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical group [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 125000001931 aliphatic group Chemical group 0.000 description 4
- 229910052783 alkali metal Inorganic materials 0.000 description 4
- 150000001340 alkali metals Chemical group 0.000 description 4
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 4
- 150000001342 alkaline earth metals Chemical group 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 125000003118 aryl group Chemical group 0.000 description 4
- 125000005442 diisocyanate group Chemical group 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 4
- 239000003999 initiator Substances 0.000 description 4
- 238000004898 kneading Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 4
- 239000012788 optical film Substances 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 230000000379 polymerizing effect Effects 0.000 description 4
- 229920002223 polystyrene Polymers 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- BYEAHWXPCBROCE-UHFFFAOYSA-N 1,1,1,3,3,3-hexafluoropropan-2-ol Chemical compound FC(F)(F)C(O)C(F)(F)F BYEAHWXPCBROCE-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- IFIUFEBEPGGBIJ-UHFFFAOYSA-N 4-methyl-4,5-dihydro-1,3-oxazole Chemical compound CC1COC=N1 IFIUFEBEPGGBIJ-UHFFFAOYSA-N 0.000 description 3
- 229920005497 Acrypet® Polymers 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- UEZVMMHDMIWARA-UHFFFAOYSA-N Metaphosphoric acid Chemical compound OP(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 125000005250 alkyl acrylate group Chemical group 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 3
- 239000002981 blocking agent Substances 0.000 description 3
- 238000012662 bulk polymerization Methods 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical class C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 3
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 3
- 239000003112 inhibitor Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 239000002667 nucleating agent Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000010734 process oil Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 2
- GIXFALHDORQSOQ-UHFFFAOYSA-N 2,4,6,8-tetrahydroxy-1,3,5,7,2$l^{5},4$l^{5},6$l^{5},8$l^{5}-tetraoxatetraphosphocane 2,4,6,8-tetraoxide Chemical compound OP1(=O)OP(O)(=O)OP(O)(=O)OP(O)(=O)O1 GIXFALHDORQSOQ-UHFFFAOYSA-N 0.000 description 2
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 2
- GUXJXWKCUUWCLX-UHFFFAOYSA-N 2-methyl-2-oxazoline Chemical compound CC1=NCCO1 GUXJXWKCUUWCLX-UHFFFAOYSA-N 0.000 description 2
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical class C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 2
- YWOIQIYQBRDOQA-UHFFFAOYSA-N 5,6-dihydro-4h-1,3-oxazine Chemical compound C1COC=NC1 YWOIQIYQBRDOQA-UHFFFAOYSA-N 0.000 description 2
- OZJPLYNZGCXSJM-UHFFFAOYSA-N 5-valerolactone Chemical compound O=C1CCCCO1 OZJPLYNZGCXSJM-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004342 Benzoyl peroxide Substances 0.000 description 2
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 2
- 229930185605 Bisphenol Natural products 0.000 description 2
- LCFVJGUPQDGYKZ-UHFFFAOYSA-N Bisphenol A diglycidyl ether Chemical compound C=1C=C(OCC2OC2)C=CC=1C(C)(C)C(C=C1)=CC=C1OCC1CO1 LCFVJGUPQDGYKZ-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 2
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 2
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- OUQGOXCIUOCDNN-UHFFFAOYSA-N Glycidyl stearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC1CO1 OUQGOXCIUOCDNN-UHFFFAOYSA-N 0.000 description 2
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 2
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- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 2
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 229920002845 Poly(methacrylic acid) Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 229910052775 Thulium Inorganic materials 0.000 description 2
- YDHWWBZFRZWVHO-UHFFFAOYSA-N [hydroxy(phosphonooxy)phosphoryl] phosphono hydrogen phosphate Chemical compound OP(O)(=O)OP(O)(=O)OP(O)(=O)OP(O)(O)=O YDHWWBZFRZWVHO-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 125000002723 alicyclic group Chemical group 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 235000019400 benzoyl peroxide Nutrition 0.000 description 2
- 229920002988 biodegradable polymer Polymers 0.000 description 2
- 239000004621 biodegradable polymer Substances 0.000 description 2
- QTPILKSJIOLICA-UHFFFAOYSA-N bis[hydroxy(phosphonooxy)phosphoryl] hydrogen phosphate Chemical compound OP(O)(=O)OP(O)(=O)OP(O)(=O)OP(O)(=O)OP(O)(O)=O QTPILKSJIOLICA-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 229960002944 cyclofenil Drugs 0.000 description 2
- AZSFNUJOCKMOGB-UHFFFAOYSA-N cyclotriphosphoric acid Chemical compound OP1(=O)OP(O)(=O)OP(O)(=O)O1 AZSFNUJOCKMOGB-UHFFFAOYSA-N 0.000 description 2
- MWKFXSUHUHTGQN-UHFFFAOYSA-N decan-1-ol Chemical compound CCCCCCCCCCO MWKFXSUHUHTGQN-UHFFFAOYSA-N 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- RAABOESOVLLHRU-UHFFFAOYSA-N diazene Chemical compound N=N RAABOESOVLLHRU-UHFFFAOYSA-N 0.000 description 2
- 229910000071 diazene Inorganic materials 0.000 description 2
- ZWJPCOALBPMBIC-UHFFFAOYSA-N diphenylketene Chemical compound C=1C=CC=CC=1C(=C=O)C1=CC=CC=C1 ZWJPCOALBPMBIC-UHFFFAOYSA-N 0.000 description 2
- XPPKVPWEQAFLFU-UHFFFAOYSA-N diphosphoric acid Chemical compound OP(O)(=O)OP(O)(O)=O XPPKVPWEQAFLFU-UHFFFAOYSA-N 0.000 description 2
- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000003480 eluent Substances 0.000 description 2
- 230000006355 external stress Effects 0.000 description 2
- 238000005227 gel permeation chromatography Methods 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 238000009998 heat setting Methods 0.000 description 2
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- 239000011261 inert gas Substances 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 150000002561 ketenes Chemical class 0.000 description 2
- 150000002596 lactones Chemical class 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- QWVGKYWNOKOFNN-UHFFFAOYSA-N o-cresol Chemical compound CC1=CC=CC=C1O QWVGKYWNOKOFNN-UHFFFAOYSA-N 0.000 description 2
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 150000004893 oxazines Chemical class 0.000 description 2
- AFEQENGXSMURHA-UHFFFAOYSA-N oxiran-2-ylmethanamine Chemical class NCC1CO1 AFEQENGXSMURHA-UHFFFAOYSA-N 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- DGTNSSLYPYDJGL-UHFFFAOYSA-N phenyl isocyanate Chemical compound O=C=NC1=CC=CC=C1 DGTNSSLYPYDJGL-UHFFFAOYSA-N 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 229920001515 polyalkylene glycol Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920000137 polyphosphoric acid Polymers 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- CYIDZMCFTVVTJO-UHFFFAOYSA-N pyromellitic acid Chemical compound OC(=O)C1=CC(C(O)=O)=C(C(O)=O)C=C1C(O)=O CYIDZMCFTVVTJO-UHFFFAOYSA-N 0.000 description 2
- 238000010526 radical polymerization reaction Methods 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 239000010979 ruby Substances 0.000 description 2
- 229910001750 ruby Inorganic materials 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000012321 sodium triacetoxyborohydride Substances 0.000 description 2
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- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 235000019359 magnesium stearate Nutrition 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
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 210000004379 membrane Anatomy 0.000 description 1
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- 230000000813 microbial effect Effects 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- PBMIETCUUSQZCG-UHFFFAOYSA-N n'-cyclohexylmethanediimine Chemical compound N=C=NC1CCCCC1 PBMIETCUUSQZCG-UHFFFAOYSA-N 0.000 description 1
- LTUKBRXELKXITI-UHFFFAOYSA-N n-(oxiran-2-ylmethyl)benzamide Chemical compound C=1C=CC=CC=1C(=O)NCC1CO1 LTUKBRXELKXITI-UHFFFAOYSA-N 0.000 description 1
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 description 1
- HNHVTXYLRVGMHD-UHFFFAOYSA-N n-butyl isocyanate Chemical compound CCCCN=C=O HNHVTXYLRVGMHD-UHFFFAOYSA-N 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000003261 o-tolyl group Chemical group [H]C1=C([H])C(*)=C(C([H])=C1[H])C([H])([H])[H] 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- OEIJHBUUFURJLI-UHFFFAOYSA-N octane-1,8-diol Chemical compound OCCCCCCCCO OEIJHBUUFURJLI-UHFFFAOYSA-N 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
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- 239000013110 organic ligand Substances 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 150000002918 oxazolines Chemical class 0.000 description 1
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- 239000002530 phenolic antioxidant Substances 0.000 description 1
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- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 150000004714 phosphonium salts Chemical group 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
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- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
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- 229920006324 polyoxymethylene Polymers 0.000 description 1
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- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 229920005629 polypropylene homopolymer Polymers 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
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- LYBIZMNPXTXVMV-UHFFFAOYSA-N propan-2-yl prop-2-enoate Chemical compound CC(C)OC(=O)C=C LYBIZMNPXTXVMV-UHFFFAOYSA-N 0.000 description 1
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- 150000003384 small molecules Chemical class 0.000 description 1
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical group [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
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- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 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
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- KQBSGRWMSNFIPG-UHFFFAOYSA-N trioxane Chemical compound C1COOOC1 KQBSGRWMSNFIPG-UHFFFAOYSA-N 0.000 description 1
- VJMNBTXNKDIRQB-UHFFFAOYSA-N trioxole Chemical compound O1OC=CO1 VJMNBTXNKDIRQB-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
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- 239000008096 xylene Substances 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3083—Birefringent or phase retarding 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
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1328—Shrinkable or shrunk [e.g., due to heat, solvent, volatile agent, restraint removal, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31786—Of polyester [e.g., alkyd, etc.]
- Y10T428/31797—Next to addition polymer from unsaturated monomers
Definitions
- the present invention relates to a film suitable for an optical film such as a polarizing plate protective film or a retardation film.
- biodegradable polymers that can be decomposed in the natural environment have become finer.
- biodegradable polymers have been developed. Among them, polylactic acid has good transparency, can be melt-molded, and can be economically produced by fermentation using microbial mass as a raw material, and is expected to be used as an optical material. ing.
- polymers have birefringence because the refractive index differs between the direction of the molecular main chain and the direction perpendicular thereto.
- it is required to strictly control the birefringence, and in the case of a polarizing plate protective film used for a liquid crystal polarizing plate, a low birefringence is required.
- triacetyl cellulose (TAC) film has been widely used as a protective film for polarizing plates.
- TAC triacetyl cellulose
- the necessary films have become larger and the need to reduce the distribution of fluctuations in birefringence has increased.
- an optical material having a low photoelastic coefficient and a low heat shrinkage rate is required.
- optical materials with a low photoelastic coefficient examples include TAC and methyl methacrylate as described above.
- a homopolymer (PMMA) is known.
- Amorphous polyolefin (A PO) is also known (Non-patent Document 1).
- these materials still have a problem that the birefringence change due to external force is large or the polarity is too low.
- Photoelastic coefficient consisting of the material film is - 13X 10- 12 less than about 12X 10- 12 Bruno P a exceeds the ZP a (Patent Document 1).
- this material has a drawback that heat shrinkage due to heating is large and a difference in birefringence changes due to thermal stress generated when used as a polarizing plate protective film. Therefore, the development of a material with low photoelastic coefficient, little change in birefringence difference due to external stress, good dimensional stability during heating, and suppression of thermal stress is awaited.
- Patent Document 1 Review of Chemistry, No. 39, 1998 (published by Soichi Yusen)
- Patent Document 1 Japanese Unexamined Patent Publication No. 2006-227090 Disclosure of Invention
- an object of the present invention is to provide a film in which the change in birefringence due to external force is small, the dimensional stability during heating is good, and the change in birefringence due to thermal stress is small.
- the present inventor has a crystal melting peak at 190 ° C or higher as a component A by differential scanning calorimetry (DSC) measurement.
- DSC differential scanning calorimetry
- the object of the present invention can be achieved by the following.
- (1) Contains polylactic acid (component A) and acryl-based resin (component B) consisting of poly-L-lactic acid and poly-D-lactic acid, with a differential scanning calorimeter (DSC) measurement of more than 190 A film comprising a resin composition having a crystal melting peak.
- component A polylactic acid
- component B acryl-based resin
- DSC differential scanning calorimeter
- phase difference (Re) in the plane direction of the film defined by the following formula (ii) and the thickness direction retardation (R th) defined by the following formula (iii) are both 10 nm or less.
- nx represents the refractive index in the longitudinal direction
- ny represents the refractive index in the width direction
- nz represents the refractive index in the thickness direction
- d represents the thickness (nm).
- the storage elastic modulus E 'measured by dynamic viscoelasticity (DMA) does not show a minimum value in the temperature range from room temperature (25 ° C) to 150 ° C, and 0.5X 10 8 Pa
- a polarizing plate protective film comprising the film according to any one of (1) to (8) above.
- the film of the present invention comprises polylactic acid (A component) composed of poly L-lactic acid and poly D-lactic acid and an acrylic resin (component B) as essential components, and is 190 ° C by differential scanning calorimetry (DSC) measurement. This is obtained by molding using a resin composition having a crystal melting peak.
- the crystal melting peak appearing at 190 ° C or higher is a stereocomplex phase (hereinafter sometimes referred to as complex phase) polylactic acid crystal melting peak.
- Polylactic acid (component A) includes stereocomplex polylactic acid formed from poly L monolactic acid and poly D-lactic acid.
- Poly L-lactic acid and poly D-lactic acid are substantially composed of L monolactic acid units or D-lactic acid units represented by the following formula (1).
- “Substantially” means that the component preferably accounts for 75 mol% or more, more preferably 90 mol%, more preferably 95 mol% or more based on the total components.
- the content of the L monolactic acid unit in the poly L monolactic acid is preferably 90 to 100 mol%, more preferably 95 to 100 mol%, and still more preferably 97.5 to 100 mol%. In order to realize a high melting point, it is 99 to 100 mol%.
- Other single Examples of the position include D-lactic acid units and units other than lactic acid.
- the content of other units is preferably 0 to 10 mol%, more preferably 0 to 5 mol%, and still more preferably 0 to 2 mol%.
- the content of the D-lactic acid unit in the poly-D-lactic acid is preferably 90 to 100 mol%, more preferably 95 to: L00 mol%, and more preferably 97.5 to 1.000. Mol%. In order to realize a high melting point, it is 99 to 100 mol%.
- Other units include D-lactic acid units and units other than lactic acid. The content of other units is preferably 0 to 10 mol%, more preferably 0 to 5 mol%, and still more preferably 0 to 2 mol%.
- units other than lactic acid units derived from dicarboxylic acids, polyhydric alcohols, hydroxycarboxylic acids, lactones and the like having functional groups capable of forming two or more ester bonds, various polyesters composed of these various components, various polyethers, Examples are units derived from various poly force monoponates and the like.
- dicarboxylic acid examples include succinic acid, adipic acid, azelaic acid, sepacic acid, terephthalic acid, and isophthalic acid.
- polyhydric alcohols include ethylene glycol, propylene glycol, butanediol, pen diol, hexanediol, octanediol, glycerin, sorbitan, neopentyl glycol, diethylene glycol, triethylene glycol, polyethylene glycol, polypropylene dallicol, etc.
- Aliphatic polyhydric alcohols or bisphenols and aromatic polyhydric alcohols such as those obtained by adding ethylene oxide to these.
- hydroxycarboxylic acid examples include glycolic acid, hydroxybutyric acid, p-oxybenzoic acid and the like.
- lactone examples include glycolide, ⁇ -force prolactone, 3-propiolactone, 5-propylolactone, / 6- or arbutyrolactone, pivalolactone, and ⁇ -valerolactone.
- the weight average molecular weights of poly L monolactic acid and poly D-lactic acid are preferably from 10,000 to 500,000, more preferably from 10,000 to 350,000 in order to achieve both the mechanical properties and moldability of the resin composition. More preferably, it is in the range of 120,000 to 250,000.
- Poly L-lactic acid and poly D-lactic acid can be produced by a conventionally known method.
- L- or D-lactide can be heated in the presence of a metal-containing catalyst and produced by ring-opening polymerization.
- a metal-containing catalyst After crystallizing a low molecular weight polylactic acid containing a metal-containing catalyst, heating in the presence or absence of a reduced pressure or pressure, or in the presence of an inert gas stream, solid phase polymerization to produce. You can also. Further, it can be produced by a direct polymerization method in which lactic acid is subjected to dehydration condensation in the presence / absence of an organic solvent.
- the polymerization reaction can be carried out in a conventionally known reaction vessel.
- a vertical reactor or a horizontal reactor equipped with a stirring blade for high viscosity, such as a helical lip blade can be used alone or in parallel.
- any of a batch type, a continuous type or a semi-batch type may be used, or these may be combined.
- Alcohol may be used as a polymerization initiator. Such alcohol is preferably non-volatile without inhibiting the polymerization of polylactic acid.
- decanol, dodecanol, tetradecanol, hexadenool, octadecanol and the like can be suitably used.
- polylactic acid having a relatively low molecular weight (approximately 15 to 203) obtained by the ring-opening polymerization method or the direct polymerization method of lactic acid described above is used as a prepolymer.
- the prepolymer is preferably crystallized in advance in the temperature range of the glass transition temperature or higher and lower than the melting point from the viewpoint of preventing resin pellet fusion.
- the crystallized prepolymer is filled in a fixed vertical or horizontal reaction vessel, or a reaction vessel (such as a rotary kiln) in which the vessel itself rotates like a tumbler or kiln, and is above the glass transition temperature of the prepolymer and below the melting point. Is heated to a temperature range of.
- the metal-containing catalyst used in the polymerization of polylactic acid should be deactivated with a conventionally known deactivator prior to use to improve the stability of polylactic acid (component A) and resin composition against heat and moisture. This is preferable because it is possible.
- Examples of such a deactivator include an organic ligand force S having an imino group and consisting of a group of Kirety ligands capable of coordinating with a polymerized metal catalyst.
- acid salts of these acids, monohydric and polyhydric alcohols, partial esters of polyalkylene glycols, complete esters, phosphono-substituted lower aliphatic carboxylic acid derivatives, and the like can be given.
- polyphosphoric acid which is 2>xZy> l, and is called diphosphoric acid, triphosphoric acid, tetraphosphoric acid, pentaphosphoric acid or the like based on the degree of condensation, and a mixture thereof are preferable.
- ultraphosphoric acid represented by l> x "y> 0 and having a network structure in which a part of the phosphorus pentoxide structure is left (these may be collectively referred to as a metaphosphoric acid compound).
- acidic salts of these acids monovalent and polyhydric alcohols, partial esters of polyalkylene glycols, phosphoric acid or acidic esters thereof, and phosphono-substituted lower aliphatic force ruponic acid derivatives are preferably used. Is done.
- Metaphosphoric acid compounds are cyclic metallic compounds in which about 3 to 200 phosphoric acid units are condensed.
- Phosphoric acid has a three-dimensional structure with a three-dimensional network structure. Including and including metal salt, Aarrucakariri earth metal salt, onium salt)).
- the ring-shaped mem- brane nattotrilyumum phosphatate is an area of the Ullul ⁇ area.
- Di-hexoxyhexylphosphoshonophosphonoeethylylacetate hereinafter referred to as DDHH PP 55 AA for short) Etc.
- DDHH PP 55 AA Di-hexoxyhexylphosphoshonophosphonoeethylylacetate
- Popolyli lactate ((AA component)) and the weight ratio by weight of Polypoli LL monolactic lactate and poporily DD—-lactic lactate is 99 00 :: 11 It is 00 00 from 11 00 :: 99 00. .
- the weight-to-weight ratio is from 77 55 :: 22 55 22 55 :: 77 55, where it is like 1100, and it is more like it is like 66 00 :: 44 00 to 44 44 :: 66 As long as it is within the range of 00 and can be made only with the range of 5 00 :: Close to 55 00 is selected and selected appropriately. .
- the weight average weight average molecular weight of the polypolylactic acid ranges from 11 million to 55 million.
- the composition is selected and selected in a more favorable manner than the point that both the formability of the composition and the physical properties can be achieved.
- the range of 11 million to 33 million is better, and the range of 11 million to 22 55 million is more comfortable. It is selected and selected appropriately.
- 1155 Weighing weight average average molecular weight is determined by the use of Keguro mouth perforation as the eluent separation liquid. (GG PP CC)) This is the average value of weight average average molecular weight of the standard quasi-polystyrene polystyrene based on the measurement measurement. .
- the polypolylactic acid ((AA component)) used in the invention of the present invention is used for the measurement of the DD SS CC measurement.
- the degree of stereoleoicization ((SS)) defined by the following formula ((ii)) is 88 2200 00 %% or less. That's it for the above. .
- poly (polylactic acid) ((AA component)) has a stellareo coco complex phase formed at a high altitude. Toto is nice and good. .
- AA HHmm ss is Denotes the crystal melting and melting solution of the coco-complex plexus phase phase polypolylactic acid.
- AA HHmmhh represents the crystal melting and melting solution of the hohomomophasic phase polypolylactic acid.
- the DD SS CC measurement value of 2255 is expressed as 11 99 00 °° C or higher.
- the crystal melt-melting pie-peek cake is a crystal-melt-melting pie-peek cake that is attributed to the melt-melt solution of the homohomomophatic phase polypolylactic acid. .
- the degree of stereoleo conversion ((SS)) is almost the same as in the thermal treatment process, and is finally finally formed. This is a parameter indicating the proportion of sporilactic acid crystals.
- the polylactic acid (component A) has a stereogenicity (S) in such a range, the dimensional stability, high-temperature mechanical properties, etc. of the film of the present invention can be improved.
- Crystal melting temperature of polylactic acid is preferably in the range of 190 to 25 ° C, more preferably in the range of 20 to 220 ° C.
- the crystal melting enthalpy is preferably 20 J / g or more, more preferably 30 J Zg or more.
- Polylactic acid (component A) can be produced by coexisting and contacting poly L-lactic acid and poly D-lactic acid at a predetermined weight ratio.
- the solvent is not particularly limited as long as it dissolves poly L-lactic acid and poly D-lactic acid.
- the solvent is not particularly limited as long as it dissolves poly L-lactic acid and poly D-lactic acid.
- chloroform, methylene chloride, dichloroethane, tetrachloroethane, phenol, tetrahydrofuran, N-methylpyrrolidone, N, N-dimethylformamide, ptilolactone, trioxane, hexafluoroisopropanol and the like are preferably used alone or in combination of two or more.
- Mixing can be performed in the absence of a solvent. That is, a method of melt kneading after mixing a predetermined amount of poly-L monolactic acid and poly D-lactic acid, and a method of adding and kneading one of them after melting one of them can be employed.
- the contact can be made by chemical bonding.
- polylactic acid of a block polymer in which a poly L monolactic acid segment and a poly D-lactic acid segment are bonded to each other easily forms a complex phase, and such a stereoblock polylactic acid can be preferably used in the present invention. I can do it.
- Such block polymers include, for example, a method of producing by sequential ring-opening polymerization, a method of polymerizing poly (L-monolactic acid) and poly (D-lactic acid), and then binding them with a chain exchange reaction or a chain extender.
- the basic composition described above such as a method of polymerizing L-? L acid and poly-D-lactic acid, blending and then solid-phase polymerizing to extend the chain, and a method of producing from racemic lactide using a stereoselective ring-opening polymerization catalyst, etc. If it has a block copolymer, regardless of the production method, Can be used.
- component A polylactic acid (component A) used in the present invention
- a specific additive in order to stably and highly advance the formation of the complex phase within the range not departing from the spirit of the present invention.
- R in formula (2), R tendrepresents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and R 12 and R 13 each independently represents a hydrogen atom or an alkyl group having 1 to 12 carbon atoms.
- Mi represents an alkali metal atom, alkaline earth metal atom, zinc atom or aluminum atom
- p represents 1 or 2
- q represents I ⁇ is an alkali metal atom, alkaline earth metal atom, zinc atom 0 represents 0, and aluminum represents 1 or 2.
- R 14 , 1 15 and 1 16 each independently represent a hydrogen atom or an alkyl group having 1 to 12 carbon atoms
- M 2 represents an alkali metal atom, an alkaline earth metal atom, or a zinc atom.
- Or represents an aluminum atom
- p represents 1 or 2
- Q represents 0 when M 2 is an alkali metal, alkaline earth metal, or zinc atom, and 1 or 2 when M 2 is an aluminum atom.
- M 2 of the metal phosphate represented by the formula (2) or (3) is preferably Na, K, A 1, Mg, Ca, or Li, and in particular, L among K, Na, Al, and Li. i, A 1 force can be most suitably used.
- (II) in addition, it has at least one group selected from the group consisting of epoxy group, oxazoline group, oxazine group, isocyanate group, ketene group and carpositimide group (hereinafter sometimes referred to as specific functional group)
- An example is a method of adding a compound as a block forming agent.
- the content of the metal phosphate is preferably 10 ppm to 2% by weight, more preferably 50 ppm to 0.5% by weight, and even more preferably 100 ppm to 0.3% by weight with respect to polylactic acid (component A). %. If the amount is too small, the effect of improving the degree of stereoization is small, and if it is too large, the resin itself is deteriorated.
- a crystallization nucleating agent can be used in combination in order to enhance the action of the metal phosphate within the scope not departing from the gist of the present invention.
- the crystallization nucleating agent calcium silicate, talc, kaolinite, and montmorillonite strength S are preferable.
- the content of the crystallization nucleating agent that strengthens the action of phosphoric acid metal salt is polylactic acid (component A) 100 layers It is preferably in the range of 0.05 to 5 parts by weight, more preferably 0.02 to 2 parts by weight, and still more preferably 0.06 to 1 part by weight per part by weight.
- the block forming agent is a block in which a specific functional group reacts with the molecular terminal of polylactic acid (salt component) to partially link the poly L monolactic acid unit and the poly D-lactic acid unit. Formation of polylactic acid promotes the formation of stereocomplex phase.
- the block forming agent those known as carboxyl group-capping agents for polyester can be used. Of these, a calpositimide compound is preferred because of its influence on the color tone, thermal decomposability, hydrolysis resistance and the like of polylactic acid and the resin composition of the present invention.
- the amount of the block forming agent used is preferably 0.001 to 5 parts by weight, more preferably 0.01 to 3 parts by weight, per 100 parts by weight of polylactic acid (amber component). Applying a large amount exceeding this range is not preferable because the resin hue obtained may deteriorate or plasticize. If the amount used is less than 0.001 part by weight, the effect is hardly recognized and the industrial significance is small.
- the strength lpoxyl group concentration of polylactic acid (salt component) is preferably in the range of 10 eq / ton or less, more preferably 2 ea / ton or less, and even more preferably 1 eqXton on or less.
- the polylactic acid (A component) and the resin composition can have good physical properties such as melt stability and heat and humidity resistance.
- a known method for reducing the carboxyl end group concentration in the polyester composition can be suitably applied. Specifically, a method of adding a terminal blocking agent such as a moist heat resistance improving agent or a method of esterifying or amidating with an alcohol or amine without adding a terminal blocking agent can be employed.
- the above-described carboxyl group-capping agent having a specific functional group can be suitably applied.
- a carboimide compound whose specific functional group is a carbopositimide group can effectively seal a carboxyl group, It is preferably selected from the viewpoints of the hue of the resin composition of the invention, the promotion of the formation of a complex phase, and heat and humidity resistance.
- the polylactic acid (component A) preferably contains a compound having a specific functional group serving both as a block forming agent and a heat-and-moisture resistance improver.
- a carpositimide compound is preferred as such a compound.
- the compounding amount of the carpositimide compound is preferably in the range of 0.001 to 5 parts by weight per 100 parts by weight of polylactic acid (component A). If the amount is less than 1 part by weight, it is unsatisfactory to perform its function as a block forming agent or as a powerful lupoxyl base sealant. In addition, if it is applied in a large amount exceeding this range, it is not preferable because the concern of deterioration of the resin hue or plasticization due to undesirable side reactions such as decomposition of the agent is increased.
- a compound having a specific functional group is selected as a main component of a calpositimide compound, and other compounds are preferably selected in order to complement and enhance the action of the carpositimide compound.
- Examples of the compound having a specific functional group that can be applied in the present invention include the following compounds.
- Examples of the carpositimide compound include dicyclohexyl carpositimide, disorb pill force ruposimide, diisoptyl carposimide, dioctyl carposimide, octyl Decyl carpositimide, di-t-butyl carpositimide, dibenzyl carpositimide, diphenyl carpositimide, N—octadecyl lu N, monophenyl carposimide, N—benzil ro N, monophenyl carposimide, N—benzil ru N'-tolylcarposimide, di-o-tolylcarposimide, di-p-tolylcarposimide, bis (p-aminophenyl) force rupodiimide, bis (p-cyclophenyl) carpositimide, bis (o-chloro) Mouth pheny
- bis (2,6-disopropylphenyl) carbopositimide and 2,6,2 ′, 6′-tetraisopropyldiphenyl carbopositimide are preferable from the viewpoint of reactivity and stability.
- dicyclohexyl carpositimide and bis (2,6-diisopropylphenyl) carpositimide can be suitably used.
- a commercially available polycarbopositimide compound as the above polycarbopositimide compound can be suitably used without the need to synthesize, and as such a commercially available polycarbopositimide compound, for example, “Calpository®” commercially available from Nisshinbo Co., Ltd.
- “Calpository®” commercially available from Nisshinbo Co., Ltd.
- “Calpositolite” LA-1 sold under the trade name of HMV-8 CA or the like.
- epoxy compounds that can be used in the present invention, glycidyl ether compounds, glycidyl ester compounds, glycidylamine compounds, glycidyl imide compounds, glycidyl amide compounds, and alicyclic epoxy compounds can be preferably used.
- glycidyl ether compounds glycidyl ester compounds, glycidylamine compounds, glycidyl imide compounds, glycidyl amide compounds, and alicyclic epoxy compounds
- glycidyl ether compounds glycidyl ester compounds
- glycidylamine compounds glycidylamine compounds
- glycidyl imide compounds glycidyl amide compounds
- alicyclic epoxy compounds can be preferably used.
- daricidyl ether compounds include stearyl glycidyl ether, phenyl daricidyl ether, ethylene oxide lauryl alcohol glycidyl ether, ethylene glycol diglycidyl ether, polyethylene dalcoyl diglycidyl ether, polypropylene darlicol diglycidyl.
- neopentylene glycol diglycidyl ether polytetramethylene glycol diglycidyl ether, glycerol tridaricidyl ether, Bisphenol A diglycidyl ether type epoxy resin obtained by condensation reaction of bisphenols such as pen erythritol tetraglycidyl ether and other bis (4-hydroxyphenyl) methacrylates and epichlorohydrin, etc.
- bisphenol A diglycidyl ether type epoxy resin is preferable.
- Examples of daricidyl ester compounds include daricidyl benzoate, glycidyl stearate, glycidyl stearate, didaricidyl terephthalate, didaricidyl phthalate, diglycidyl cyclohexane dicarboxylate.
- Examples include esters, adipic acid diglycidyl ester, succinic acid diglycidyl ester, dodecanedioic acid diglycidyl ester, pyromellitic acid diglycidyl ester and the like. Among them, benzoic acid daricidyl ester and versatic acid glycidyl ester are preferable. .
- daricidylamine compounds include, for example, tetradaricidylamine diphenylmethane, triglycidyl P-aminophenol, diglycidyl dilin,
- Examples include diisocyanurate.
- alicyclic epoxy compounds include 3,4-one-epoxycyclohexyl, 3,4-one-cyclohexylcarboxylate, bis (3,4-epoxycyclohexylmeth) V) Ajibe, bini ⁇ / cyclo Examples include xene diepoxide, N-methyl-4,5-epoxycyclohexane-1,2-dicarboxylic imide, N-phenyl 4,5-epoxycyclohexane-1,2-dicarboximide, and the like.
- epoxy compounds epoxidized soybean oil, epoxidized amani oil, epoxy-modified fatty acid daricelide such as epoxidized whale oil, phenol nopolak type epoxy resin, cresol mononopolak type epoxy resin and the like can be used.
- the polyoxazoline compound etc. which contain the said compound as a monomer unit are mentioned.
- the oxazine compounds that can be used in the present invention include 2-methoxy-5,6-dihydro-4H-1,3-oxazine, 2-hexyloxy-5,6-dihydr, 4H-1,3-oxazine, 2- Decyloxy-1, 6-dihydro-4H—1,3-oxazine, 2-cyclohexyloxy-5,6-dihydro-4H—1,3-oxazine, 2-aryloxy-5,6-dihydro-4H— 1,3-Oxazine, 2-Crotyloxy-5,6-Dihydro-4H-1,3-Oxazine and the like.
- Further examples include polyoxazine compounds containing the above-described compounds as monomer units.
- oxazoline compounds and oxazine compounds 2,2, —m-phenylenebis (2-year-old xazoline) and 2,2,1-p-phenylenediamine (2-oxazoline) are preferred.
- Isocyanate compounds that can be used in the present invention include aromatic, aliphatic, alicyclic isocyanate compounds, and mixtures thereof.
- monoisocyanate compounds include phenyl isocyanate, tolyl isocyanate, dimethylphenyl isocyanate, cyclohexyl isocyanate, butyl isocyanate, naphthyl isocyanate, and the like.
- diisocyanates examples include 4,4'-diphenylmethane diisocyanate, 4,4, -diphenyldimethylmethane diisocyanate, 1,3-phenylene diisocyanate, 1,4 monophenyl diisocyanate.
- aromatic isocyanates such as 4,4, -diphenylmethane diisocyanate and phenyl isocyanate are preferred.
- ketene compounds that can be used in the present invention include aromatic, aliphatic, and alicyclic ketene compounds and mixtures thereof. Specific examples thereof include diphenylketene, bis (2,6-di-t-butylphenyl) ketene, bis (2,6-diisopropylphenyl) ketene, dioxy-hexylketene and the like.
- aromatic ketenes such as diphenylketene, bis (2,6-dibutylphenyl) ketene, and bis (2,6-di-sodiumpropylpropyl) ketene are preferred.
- one or more compounds can be appropriately selected and used. Promoting the formation of a block structure with a heat-and-moisture resistance improver and sealing a terminal portion of a force lpoxyl group or a part of an acidic low molecular weight compound are also exemplified as one of preferred embodiments.
- the lactide content of polylactic acid (component A) is preferably 0 to 1,000 ppm, more preferably 0 to 500 ppm, still more preferably 0 to 200 ppm, particularly preferably 0 to The range is 1 0 0 p pm. When the lactide content is within this range, it is possible to suppress the generation of causal substances such as equipment contamination in the film forming process and surface defects of the film.
- Poly L-Lactic Acid Opi Poly D A conventionally known lactide mitigation method at any stage from the polymerization point of time to the end of the production of polylactic acid (component A). Can be achieved by implementing these alone or in combination.
- Acrylic resin (component B) is cyclohexyl methacrylate, methacrylic acid t —Methyl acrylate, such as butyl cyclohexyl, methyl methacrylate, methyl acrylate, ethyl acrylate, butyl acrylate, isopropyl acrylate, acrylate, acrylate, etc. 1 It is a polymer of more than one type of monomer. These monomers can be used alone or in admixture of two or more. Of these, a homopolymer of methyl methacrylate or a copolymer with other monomers is preferable.
- Monomers copolymerizable with methyl methacrylate include other alkyl methacrylates, alkyl acrylates, aromatic vinyl compounds such as styrene vinyl toluene and a-methyl styrene, acrylonitrile, and methacrylonitrile.
- Vinyl cyanides such as N-phenylmaleimide, N-cyclohexylmaleimide, etc., unsaturated carboxylic anhydrides such as maleic anhydride, acrylic acid, methacrylic acid, maleic acid etc. Saturated acid power is mentioned.
- acrylic acid alkyl esters are particularly excellent in thermal decomposition resistance.
- a methacrylic resin obtained by copolymerizing acrylic acid alkyl esters is preferable because of its high fluidity during molding.
- the amount of alkyl acrylates used when methyl acrylate is copolymerized with methyl methacrylate is preferably 0.1% by weight or more from the viewpoint of thermal decomposition resistance, and from the viewpoint of heat resistance. It is preferably 15% by weight or less, more preferably 0.2% by weight or more and 14% by weight or less, and particularly preferably 1% by weight or more and 12% by weight or less.
- alkyl acrylates particularly methyl acrylate and ethyl acrylate are remarkably most preferable even if they are copolymerized with a small amount of methyl methacrylate.
- the monomers copolymerizable with methyl methacrylate can be used singly or in combination.
- the weight average molecular weight of the acrylic resin (component B) is preferably 50,000 to 200,000.
- the weight average molecular weight is preferably 50,000 or more from the viewpoint of the strength of the molded product, and preferably 200,000 or less from the viewpoint of molding processability and fluidity. A more preferable range is 70,000 to 150,000.
- isotactic polymethacrylic acid ester and Ndiotactic polymethacrylic acid ester can also be used simultaneously.
- the acrylic resin for example, generally used polymerization methods such as cast polymerization, bulk polymerization, suspension polymerization, solution polymerization, emulsion polymerization, and anion polymerization can be used. For optical applications, it is preferable to avoid the inclusion of minute foreign substances as much as possible. From this viewpoint, bulk polymerization or solution polymerization without using a suspending agent or emulsifier is desirable.
- solution polymerization a solution prepared by dissolving a mixture of monomers in an aromatic hydrocarbon solvent such as toluene, ethylbenzene, or xylene can be used.
- the polymerization can be initiated by irradiation with free radicals or ionizing radiation generated by heating, as is usually done.
- any initiator generally used in radical polymerization can be used.
- azo compounds such as azobisisobutylnitrile, benzoyl peroxide, lauroyl peroxide
- An organic peroxide such as t-butyl peroxy-2-ethylhexanoate is used.
- solution polymerization is common, so that the 10-hour half-life temperature is 80 ° C or higher and is soluble in the organic solvent used.
- These initiators are used in the range of 0.05 to 5% by weight.
- molecular weight regulator used as necessary for the polymerization reaction any one used in general radical polymerization is used.
- mercabtan compounds such as ptyl mercabtan, octyl mercabtan, dodecyl mercabtan, 2-ethyl thioglycolate and the like are particularly preferable.
- These molecular weight regulators are added in a concentration range such that the degree of polymerization is controlled within the above range.
- the ratio between polylactic acid (component A) and acrylic resin (component B) Is a weight ratio (component A component) and can be set from 90 to 100/70, but preferably 90 to 10 to 50/50, more preferably 80 to 2 It is in the range of 0 to 50/50, more preferably 7 0 Z 3 0 to 50 Z 50.
- the resin composition preferably has a degree of stereogenicity of 80% or more in the DSC measurement. When the stereogenicity is 80% or more, the thermal shrinkage rate at 90 ° C of the film can be reduced.
- the stereogenicity of the resin composition is more preferably 90% or higher, more preferably 95% or higher, and particularly preferably the stereogenicity is 100%.
- the resin composition can suppress a decrease in molecular weight due to the hydrolysis of polylactic acid (component A). For example, a decrease in strength can be suppressed.
- a hydrolysis inhibitor a compound having reactivity with a carboxylic acid and a hydroxyl group, which are terminal functional groups of polylactic acid, for example, a compound having the above-mentioned specific functional group is preferably applied, and among them, a carpositimide compound is preferred. Selected. At this time, it is preferable that the carpositimide compound is contained in an amount of 0.001 to 5% by weight based on the total amount of polylactic acid (component A) and acrylic resin (component B). This is because the stability of the resin composition with respect to moisture and the hydrolysis resistance can be suitably enhanced by satisfying such a range in the amount of the strong positive-imide compound.
- the content ratio of the carpositimide compound is more preferably selected in the range of 0.1 to 5% by weight, more preferably 0.1 to 4% by weight. If the amount is less than this range, the effect of applying the carpositimide compound is not recognized effectively. Further, when applied in a large amount exceeding this range, further improvement in hydrolysis resistance stability is not expected, and there is a concern that an undesirable phenomenon such as deterioration of the hue of the resin composition may occur.
- the total content of L and / or D-lactide in the resin composition is preferably 0 to 1, 0 0 0 p, based on the total amount of polylactic acid (A component) and acrylic resin (component B).
- the carboxyl group concentration of the resin composition is preferably 0 to 30 equivalents on, more preferably 0 to 10 based on the total amount of polylactic acid (component A) and acrylic resin (component B). Equivalents ton, more preferably 0 to 5 equivalents / ton, particularly preferably 0 to 1 equivalents on.
- Reducing the concentration of strong lpoxyl groups can be easily achieved by using polylactic acid (component A) with a reduced carboxyl group concentration as described above, but the resin composition includes the above-mentioned carpositimide compounds. This can be achieved by applying an agent having a functional group.
- the resin composition can contain other polymers other than polylactic acid (A component) and acrylic resin (B component) as long as the object of the present invention is not impaired.
- Other polymers include polyethylene, polypropylene and other polyolefins, polystyrene, styrene resins such as styrene acrylonitrile copolymer, polyamide, polyphenylene sulfide resin, polyether ether ketone resin, polyester, polysulfone, polyphenylene oxide
- Thermosetting resins such as thermoplastic resins such as polyimide, polyetherimide, and polyacetal, phenol resins, melamine resins, silicone resins, and epoxy resins. One or more of these can be contained.
- additives can be mix
- the type of additive is not particularly limited as long as it is generally used for compounding a resin or a rubbery polymer.
- additives include inorganic fillers and pigments such as iron oxide.
- lubricants such as stearic acid, behenic acid, zinc stearate, calcium stearate, magnesium stearate, and ethylene bis-stearamide, and mold release agents may be mentioned.
- softeners and plasticizers such as paraffinic process oil, naphthenic process oil, aromatic process oil, paraffin, organic polysiloxane, and mineral oil.
- Antioxidants such as hindered phenolic antioxidants and phosphorus heat stabilizers, hindered amine light stabilizers, benzotriazol ultraviolet absorbers, flame retardants, and antistatic agents. Also included are reinforcing agents such as organic fibers, glass fibers, carbon fibers, and metal whiskers, coloring agents, and electrostatic adhesion improvers. Moreover, these mixtures are mentioned.
- the resin composition can be produced by a known method.
- a resin composition can be produced by adding a water-resistant decomposition inhibitor and the above-mentioned other components and melt-kneading them.
- a molding technique such as extrusion molding or cast molding can be used.
- a film can be formed using an extruder equipped with a T die, a circular die, or the like.
- an unstretched film is obtained by extrusion molding, it is possible to use a material in which polylactic acid (component A) and acrylic resin (component B) are melt-kneaded in advance, or it can be molded via melt-kneading at the time of extrusion molding. .
- An unstretched film can be produced by extruding a molten film onto a cooling drum and then bringing the film into close contact with a rotating cooling drum and cooling it.
- an electrostatic adhesion agent such as sulfonic acid quaternary phosphonium salt is blended in the molten film, and an electric charge is easily applied from the electrode to the film melting surface in a non-contact manner, whereby the film is rotated by a cooling drum. It is possible to obtain an unstretched film with few surface defects by closely adhering to.
- polylactic acid (component A) and acrylic resin (component B) for example, solvent such as black mouth form and methylene dichloride, polylactic acid (component A) and acrylic resin ( The unstretched film can be casted by casting and solidifying after dissolving B component).
- solvent such as black mouth form and methylene dichloride
- polylactic acid (component A) and acrylic resin The unstretched film can be casted by casting and solidifying after dissolving B component).
- An unstretched film can be uniaxially stretched in the mechanical flow direction (MD) and uniaxially stretched in the direction (TD) perpendicular to the mechanical flow direction.
- biaxially stretched films are manufactured by stretching by a sequential biaxial stretching method of single-stretching and tenter stretching, a simultaneous biaxial stretching method by ten-ten stretching, a biaxial stretching method by tubular stretching, etc. can do.
- the draw ratio is at least one of the directions, preferably 0.1% or more and 1,000,000% or less, preferably 0.2% or more and 600% or less, and more preferably 0.3% or more and 300% or less. By setting the draw ratio within this range, a stretched film that is preferable in terms of birefringence, heat resistance, and strength can be obtained.
- the draw ratio is an area draw ratio (longitudinal ratio X lateral ratio), preferably 1 to 15, more preferably 1.01 to 10, more preferably 1.1 to 5, particularly preferably 1.1 to 3. Range.
- both the vertical and horizontal magnifications must be more than 1 time, that is, the film must be stretched and unstretched.
- Films are, for example, optical films for electronics (2006), heat resistance evaluation described in the electrical and electronic materials study group, and the heat resistance evaluation of the present invention (90 ° C, heat treatment for 5 hours) may reduce transparency, which is fatal as an optical film.
- the stretching temperature is preferably selected from the glass transition temperature (Tg) to the crystallization temperature (Tc) of the resin composition. Furthermore, to suppress Re and R t h, a temperature range higher than Tg and close to Tc as much as possible but where crystallization of polylactic acid (component A) does not progress is more favorably adopted.
- the stretching temperature it is difficult to proceed with crystallization of polylactic acid from the base of T g to T c, for example, the crystallization temperature (Tc) is selected from Tg. It is suitable for realizing isotropic properties.
- the stretching temperature ranges from Tg + 5 ° C to Tc, more preferably from Tg + 10 to Tc, and even more preferably from Tg + 20 to Tc ° C. Is preferably set.
- the film properties and the stabilization of the stretching process are in conflict with each other. It should be set appropriately considering the characteristics.
- the stretched film is preferably heat-treated in the temperature range from the crystallization temperature (TC) of the resin composition to the crystal melting start temperature (Tm *) of the complex phase polylactic acid.
- This heat treatment promotes the crystallization of complex-phase polylactic acid and reduces the thermal shrinkage suitably, while the storage elastic modulus E ′ is 150 ° C from room temperature (25 ° C) as measured by dynamic viscoelasticity (DMA).
- DMA dynamic viscoelasticity
- the crystallization temperature (Tc) and the crystal melting start temperature (Tm *) of the complex phase polylactic acid vary depending on the ratio of polylactic acid (component A) to acrylic resin (component B).
- the heat treatment temperature is preferably 90 to Tm * (° C), more preferably 150 to (Tm * —10) C), and still more preferably 160 to (Tm * —20) CO 2.
- the heat treatment is preferably performed in the range of 1 second to 30 minutes. When the heat treatment temperature is high, a relatively short time is required, and when the heat setting temperature is low, a relatively long time is required.
- a force of at least 30 seconds is required at 140, and a heat treatment rate of less than 5% at 90 ° C for 5 hours with a force of 15 '0 is 10 seconds. It can be.
- the film thus obtained can be subjected to surface activation treatment, for example, plasma treatment, amin treatment, and corona treatment by a conventionally known method if desired.
- surface activation treatment for example, plasma treatment, amin treatment, and corona treatment by a conventionally known method if desired.
- the thickness of the film of the present invention is preferably 1 to 300 m, more preferably 10 More preferably, it is 20-150. It is preferably 10 m or more from the viewpoint of ease of sheeting during handling (prevention of sheeting). In addition, it is preferably 200 m or less from the viewpoint of transparency.
- the absolute value of the photoelastic coefficient of the film of the present invention is preferably 10 X 10- 12 below ZP a, more preferably 8 X 10_ less than 12 ZPA, more preferably 5X 10 less than a 12 ZP a, particularly preferably 3 X less than 10- 12 / P a.
- the photoelastic coefficient (CR) is described in various documents (see Non-Patent Document 1 etc.) and is a value defined by the following formula. The closer the photoelastic coefficient is to zero, the smaller the change in birefringence due to external force, which means that the change in birefringence designed for each application is small.
- CR is the optical coefficient
- aR is the tensile stress
- ⁇ is the birefringence difference
- ⁇ is the refractive index in the stretching direction
- ny is the refractive index in the direction perpendicular to the stretching direction.
- the retardation (Re) in the plane direction and the retardation (R th) in the thickness direction of the film of the present invention are the product of the birefringence difference ⁇ and the thickness d (nm). Defined in (U) and (iii).
- nx represents the refractive index in the longitudinal direction.
- ny represents the refractive index in the width direction.
- n z represents the refractive index in the thickness direction.
- d represents the thickness (nm).
- Both Re and R th of the film of the present invention are preferably 10 nm or less, more preferably 5 nm or less, and further 4 nm or less.
- a material having values of Re and Rth in this range is preferable because it is difficult to generate phase difference s due to orientation caused by molding in extrusion molding and cast molding.
- the film of the present invention has a crystal melting peak of 190 or more complex phase polylactic acid in DSC measurement.
- the film of the present invention preferably has a degree of stereolation (S) defined by the following formula (i) of 80% or more, more preferably 90 to: L 00%, more preferably from the crystal melting peak intensity of DSC measurement. Is 97 to 100%, particularly preferably 1.00%. That is, the film of the present invention preferably has a highly formed stereocomplex phase.
- S degree of stereolation
- ⁇ Hms represents the crystal melting rate of the stereocomplex phase polylactic acid (Jnog).
- AHmh is the crystal melting enthalpy (JZg) of homophase polylactic acid.
- the degree of stereogenicity (S) is a parameter indicating the proportion of stereocomplex polylactic acid crystals that are finally produced in the heat treatment process.
- the crystal melting peak appearing at 190 ° C or higher in DSC measurement is a crystal melting peak attributed to the melting of the stereocomplex phase polylactic acid, and the crystal melting peak appearing below 1 90 ° C is a homophase phase. It is a crystal melting peak attributed to the melting of polylactic acid.
- the film of the present invention has a longitudinal direction (MD) shrinkage ratio and a transverse direction (TD) shrinkage ratio of preferably 5% or less, more preferably 4% or less, at 90 ° C. for 5 hours.
- MD longitudinal direction
- TD transverse direction
- the film of the present invention does not exhibit a minimum value in the temperature range from room temperature (25 ° C) to 150 ° C and is 0.5 X Preferably it has a value greater than 10 8 Pa.
- the film of the present invention has good dimensional stability because, for example, E ′ does not exhibit a minimum value even when heated to a temperature range of about 150 ° C. required in the manufacturing process of a polarizing film.
- E ' has a value larger than 0.5 X 10 8 Pa, deformation force due to external force hardly occurs, phase difference does not easily change, and polarization Good processability can be exhibited in the production process of the rumm.
- the film of the present invention has a stereo crystallinity (K) defined by the following formula (iv), preferably 10 to 60%, more preferably 25 to 60%, still more preferably 30 to 55%, particularly Preferably it is 35 to 55%.
- K stereo crystallinity
- AHms represents the crystal melting enthalpy (J / g) of the stereocomplex phase polylactic acid.
- AHc represents polylactic acid crystallization process rupee (J / g). 14 2 (J / g) represents the equilibrium melting enthalpy of stereocomplex polylactic acid crystals.
- the film of the present invention is useful as a polarizing plate protective film.
- a polarizing plate protective film is used as a component of a polarizing plate.
- a polarizing film (for example, a high-polymerization degree PVA base film is impregnated and adsorbed with a dichroic dye such as polysilicon or a dichroic dye). The film is used to improve the strength of the polarizing film, protect it from heat and moisture, and prevent quality deterioration.
- the polarizing plate protective film comprising the film of the present invention can be used as a constituent member of a polarizing plate for displays such as liquid crystal displays, plasma displays, organic EL displays, field emission displays, rear projection televisions and the like.
- the polarizing plate protective film made of the film of the present invention can be subjected to surface functionalization treatment such as antireflection treatment, transparent conductive treatment, electromagnetic wave shielding treatment, gas barrier treatment, and antifouling treatment as necessary.
- the film of the present invention is useful as a retardation film.
- the retardation film comprising the film of the present invention can control the retardation produced by changing the blend ratio of stereocomplex polylactic acid and acrylic resin, and the stereocomplex polylactic acid exceeds 50% by weight. If the acrylic resin is less than 50% by weight, a strong birefringence can be obtained in the longitudinal direction, and vice versa. Strong birefringence can be obtained.
- the blend ratio can be changed to an appropriate blend ratio depending on the necessary phase difference, and the phase difference can be controlled by further stretching, so that it can be suitably used as a phase difference plate for a liquid crystal panel display.
- Example 1 Example 1
- the weight average molecular weight (Mw) and number average molecular weight (Mn) of the polymer were measured by gel permeation chromatography (GPC) and converted to standard polystyrene.
- Chromium form is used as eluent, temperature is 40 ° C, flow rate is 1.
- OmlZmin concentration of 1 mg / m 1 (clonal form containing 1% hexafluoroisopropanol) is injected and measured. did.
- the content was measured by comparing the resin characteristic absorption and the calpositimide characteristic absorption with a MAG JA 750 Fourier transform infrared spectrophotometer manufactured by Nicole Corporation.
- the sample was dissolved in purified o-cresol, dissolved in a nitrogen stream, and titrated with 0.05N potassium hydroxide in ethanol using promocresol blue as an indicator. '
- the degree of stereoization (S) and the crystal melting temperature of stereocomplex polylactic acid were measured using DSC (TA-2920 manufactured by TA Instruments) to measure the crystal melting temperature and the crystal melting enthalpy. It was calculated according to the following formula (i).
- a birefringence measuring apparatus described in detail in Polymer Engineering and Science 1999, 39, 2349-2357 was used.
- a film tensioning device was placed in the laser beam path, and the birefringence was measured while applying tensile stress at 23 ° C.
- the strain rate during stretching was 50% / min (between chucks: 10 mm, chuck moving speed: 5 mmZ), and the test piece width was 8 mm.
- the photoelastic coefficient (CR) was calculated by finding the slope of the straight line using the least square approximation.
- the temperature was returned to room temperature (25 ° C), and the durability of the film was evaluated according to the following criteria.
- the measurement was performed in accordance with 6.4 of JIS K7105-1981 using Nippon Denshoku Co., Ltd. Hazmeter MDH 2000, using 40 films. If the haze exceeds 1.6%, it is judged that the transparency is poor. When the haze was 0 to 1.6%, it was judged that it could be used as a film, and when it was 1% or less, it was judged that it could be used for an optical film.
- the crystal melting event ruby was determined using DSC (TA-2920 manufactured by TA Instruments).
- ⁇ Hms Stereocomplex phase polylactic acid crystal melting ratio (J / g).
- ⁇ Polylactic acid crystallization enthalpy (J / g).
- the refractive index (nx) in the longitudinal direction and the refractive index (ny) in the width direction were measured with a spectroscopic ellipsometer (M-150, manufactured by JASCO Corporation).
- phase difference (Re) in the surface direction of the film and the phase difference (R th) in the thickness direction are From the refractive index ( ⁇ ) in the longitudinal direction, the refractive index (ny) in the ⁇ direction, and the thickness (d: nm), the following formulas (ii) and (iii) were used.
- sample strip shape, film width 4 mm, chuck distance 20 mm
- the following apparatus was used for measurement.
- Measurement mode automatic tension, automatic strain control method
- Measuring temperature range: 20 to 200 ° C
- a 50 cm ⁇ 50 cm film was allowed to stand on a stainless steel plate at 100 ° C. for 30 minutes, and then the formation of surface irregularities was determined.
- X A level at which irregularities of 1 mm or more occur and the surface can be recognized visually as a wavy surface.
- ⁇ A level at which ruggedness of 0.2 or more and less than lmm occurs, and the surface can be visually recognized as wavy.
- ⁇ Unevenness of less than 0.2 mm, and a level that can be almost regarded as a flat surface by visual inspection.
- Polylactic acid (component A) and acrylic resin (component B) were prepared by the methods of Production Examples 1 to 3.
- Production Example 1-1 Production of poly L-lactic acid (PLLA1)
- L-lactide manufactured by Musashino Chemical Laboratory, Inc., optical purity: 100%
- 100 parts by weight of tin octylate was added to 100 parts by weight, and in a nitrogen atmosphere in a reactor equipped with a stirring blade.
- 1 React at 80 ° C for 2 hours add 1.2 equivalents of phosphoric acid to tin octylate, and then remove the remaining lactide under reduced pressure with 13.3 Pa, crispy, Lactic acid (PLLA1) was obtained.
- the obtained L-monolactic acid (PLLA1) has a weight average molecular weight of 152,000, a glass transition point (Tg) of 55 ° C, a melting point of 175 ° C, a carboxyl group content of 14 eq / ton, and a lactide content.
- Tg glass transition point
- Tg melting point
- carboxyl group content 14 eq / ton
- lactide content was 3 50 p pm.
- the resulting poly-D-lactic acid (PDLA1) has a weight average molecular weight (Mw) of 151,000, a glass transition point (Tg) of 55 ° C, a melting point of 17 ° C, The content of 15 eq / ton and lactide was 450 ppm.
- Mw weight average molecular weight
- Tg glass transition point
- Tg melting point
- 17 ° C melting point
- the content of 15 eq / ton and lactide was 450 ppm.
- Table 1 The results are summarized in Table 1.
- Production Example 1 50 parts by weight each of poly L monolactic acid and poly D-lactic acid obtained in 1 and metal phosphate (“ADEKA STAB” manufactured by ADEKA Co., Ltd.) NA— 7 1: 0.3 weight Part) was supplied from the first supply port of the biaxial kneader and melt-kneaded at a cylinder temperature of 230 ° C. Furthermore, Nisshinbo Co., Ltd. “Calpolite” LA-1 was supplied from the second supply port in a total amount of 100 parts by weight of poly L-lactic acid and poly D-lactic acid, and the vent pressure was 13.3 Pa. The mixture was melt kneaded while evacuating.
- ADEKA STAB manufactured by ADEKA Co., Ltd.
- NA— 7 1 0.3 weight Part
- Polylactic acid (A component) and acrylic resin (B 1) obtained by the operation in Production Example 2 were mixed in the quantitative ratio shown in Table 3, and the polylactic acid (A component) and acrylic resin (B 1) were mixed.
- total 0.5 parts by weight of 3,5-dicarpoxybenzenesulfonic acid tetraptylphosphonium per 100 parts by weight was mixed with a Henschel mixer. After drying at 110 ° C for 5 hours, it was melt kneaded at a cylinder temperature of 230 ° C with a twin screw extruder and melt extruded into a 210 m film at a die temperature of 220 ° C. Using an electrode, the film was brought into close contact with the mirror cooling drum surface by an electrostatic casting method and solidified to obtain an unstretched film.
- the obtained unstretched film was stretched at 100 ° C by 1.1 to 1.5 times in the machine direction and 1.1 to 2.0 times in the transverse direction. Next, heat setting was performed at 140 to 160 ° C. to obtain a biaxially stretched film having a thickness of about 40 m.
- Table 3 shows the resin composition and film production conditions, and film physical properties. Comparative Examples 1 to 4
- the film of the present invention is a film having good transparency, a small photoelastic modulus, and a small heat shrinkage rate, whereas the film of the comparative example and the TAC film are both Some physical properties are not achieved. Examples 6-8
- Table 4 shows the results obtained by changing the quantitative ratio of polylactic acid (A3) and acrylic resin (B 1) and forming a film, stretching, and heat treatment under the same conditions as in Example 3. Show.
- Example 9
- Example 3 Table 4 shows the results obtained by increasing the longitudinal / lateral stretching ratio by 1.1. Examples 10-12
- Table 4 shows the results obtained by changing the polylactic acid (A3) to the resin described in Table 2 and forming a film, stretching, and heat treatment under the same conditions as in Example 3 to obtain a biaxially stretched film.
- Polylactic acid (A4) was produced and used from PLLA2 and PDLA2 according to the production example below.
- L-lactide manufactured by Musashino Chemical Laboratory, Inc., optical purity 100% 100 parts by weight of tin octylate 0.005 parts by weight, in a nitrogen atmosphere, with a reactor equipped with a stirring blade, 180 ° The mixture was reacted at C for 2 hours, and 1.2 times equivalent of phosphoric acid was added as a catalyst deactivator to tin octylate. Thereafter, the remaining lactide was removed with 13.3 Pa, and chipped to obtain poly L monolactic acid (PLLA2).
- PLLA2 poly L monolactic acid
- the resulting poly L-lactic acid (PLLA2) has a weight average molecular weight (Mw) of 171,000, a glass transition point (Tg) of 55, a melting point of 175, a carboxyl group content of 13 e QZton, and a lactide. The content was 330 ppm.
- Production Example 1-4 Manufacture of poly-D-lactic acid (PDLA2)>
- Table 6 shows the weight average molecular weight (Mw), degree of stereoification, and crystal melting temperature of (A4).
- Stereo wrinkle accelerator Phosphate metal salt, NA-71, manufactured by ADEK, “Adekastaf NA-71 Example 13 to 15
- the polylactic acid (A4) obtained in Production Example 2-4 and the acrylic resin (B1) were mixed in the quantitative ratio shown in Table 7, and then dried with hot air at 110 ° C. for 5 hours. Then in the extruder It was melt-kneaded at a cylinder temperature of 230 "C, melt-extruded into a film of about 50 m at a die temperature of 230, and adhered to the surface of the mirror-cooled drum and solidified to obtain unstretched films.
- the mixed resin of polylactic acid (component A) and acrylic resin (component B) in the types and quantity ratios listed in Table 8 was dried with hot air at 110 for 5 hours, and then melted at 230 ° C at the cylinder temperature in an extruder. Kneaded, melt-extruded into a film of 50 200 zm at a die temperature of 230, adhered to the surface of the mirror cooling drum and solidified to obtain an unstretched film. The obtained unstretched film had a Tc of 138 ° C and a Tm of 215 ° C.
- the film of the present invention has a small change in birefringence due to external force, good dimensional stability during heating, and a small change in birefringence due to thermal stress. Therefore, the film of the present invention is It becomes a polarizing plate protective film used for a display etc.
- the film of the present invention can control the phase difference by changing the blend ratio of polylactic acid (A component) and acrylic resin (B component), and becomes a retardation film having a stable retardation.
- the film of the present invention can be used as a polarizing plate protective film.
- the film of the present invention can be used as a constituent member of a polarizing plate for displays such as liquid crystal displays, plasma displays, organic EL displays, field emission displays, rear projection televisions and the like.
- the film of the present invention can reproduce the retardation stably and has a small photoelastic coefficient, and therefore can be suitably used as a retardation film.
- the film of the present invention can be used for a liquid crystal display such as an IPS (InPlane Swiching) system.
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Abstract
Description
Claims
Priority Applications (5)
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US12/677,262 US8647738B2 (en) | 2007-09-10 | 2008-09-10 | Film |
CN200880106439.5A CN101802057B (zh) | 2007-09-10 | 2008-09-10 | 膜 |
JP2009532262A JP5492561B2 (ja) | 2007-09-10 | 2008-09-10 | フィルム |
EP08830944.8A EP2189493A4 (en) | 2007-09-10 | 2008-09-10 | MOVIE |
HK10110342.2A HK1143985A1 (en) | 2007-09-10 | 2010-11-04 | Film |
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US (1) | US8647738B2 (ja) |
EP (1) | EP2189493A4 (ja) |
JP (1) | JP5492561B2 (ja) |
KR (1) | KR101546978B1 (ja) |
CN (1) | CN101802057B (ja) |
HK (1) | HK1143985A1 (ja) |
TW (1) | TWI455966B (ja) |
WO (1) | WO2009035127A1 (ja) |
Cited By (7)
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WO2010035911A1 (ja) * | 2008-09-29 | 2010-04-01 | 帝人株式会社 | ボリ乳酸フィルム |
JP2010083906A (ja) * | 2008-09-29 | 2010-04-15 | Teijin Ltd | ポリ乳酸フィルム及びその製造方法 |
JP2011162713A (ja) * | 2010-02-12 | 2011-08-25 | Teijin Ltd | 白色二軸延伸ポリ乳酸フィルム |
JP2012000808A (ja) * | 2010-06-15 | 2012-01-05 | Teijin Ltd | 透明導電性積層体 |
JP2014035393A (ja) * | 2012-08-08 | 2014-02-24 | Sumitomo Chemical Co Ltd | 偏光板及びそれを用いた液晶表示パネル |
JP2016006470A (ja) * | 2013-07-05 | 2016-01-14 | 富士フイルム株式会社 | 偏光板および液晶表示装置 |
JP2017204007A (ja) * | 2017-08-09 | 2017-11-16 | 住友化学株式会社 | 偏光板及びそれを用いた液晶表示パネル |
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WO2012050400A2 (ko) * | 2010-10-14 | 2012-04-19 | 주식회사 엘지화학 | 용융 가공용 수지 혼합물 |
KR101241014B1 (ko) | 2011-07-29 | 2013-03-11 | 한국기술교육대학교 산학협력단 | 용액캐스팅 법을 이용한 폴리유산 스테레오컴플렉스 제조방법 |
CN103813902B (zh) * | 2011-11-30 | 2015-07-01 | 东丽株式会社 | 聚乳酸系树脂片及成型品 |
KR101465760B1 (ko) * | 2013-02-06 | 2014-12-01 | 성균관대학교산학협력단 | 개선된 폴리에스테르계 필름, 및 이의 제조 방법 |
WO2014208403A1 (ja) * | 2013-06-27 | 2014-12-31 | 地方独立行政法人 大阪市立工業研究所 | ポリ乳酸系樹脂フィルムの製造方法 |
WO2017170446A1 (ja) * | 2016-03-29 | 2017-10-05 | リンテック株式会社 | 両面粘着シート |
CN109912945B (zh) * | 2018-11-19 | 2021-04-30 | 江苏科技大学 | 一种高分子量聚乳酸材料及其制备方法 |
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JP2004107630A (ja) | 2002-07-24 | 2004-04-08 | Toray Ind Inc | ポリ乳酸系フィルム |
KR100805413B1 (ko) * | 2004-03-05 | 2008-02-20 | 미츠비시 레이온 가부시키가이샤 | 열가소성 수지 조성물 및 이를 이용한 성형품 |
WO2006009285A1 (ja) * | 2004-07-22 | 2006-01-26 | Teijin Limited | ポリ乳酸およびその製造方法 |
JP5008015B2 (ja) | 2004-12-27 | 2012-08-22 | 株式会社豊田中央研究所 | 脂肪族ポリエステル組成物及びその成形体 |
JP2006227090A (ja) | 2005-02-15 | 2006-08-31 | Asahi Kasei Chemicals Corp | 偏光板保護フィルム |
JP2006243610A (ja) | 2005-03-07 | 2006-09-14 | Asahi Kasei Chemicals Corp | 位相差フィルム |
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2008
- 2008-09-10 EP EP08830944.8A patent/EP2189493A4/en not_active Withdrawn
- 2008-09-10 WO PCT/JP2008/066800 patent/WO2009035127A1/ja active Application Filing
- 2008-09-10 CN CN200880106439.5A patent/CN101802057B/zh not_active Expired - Fee Related
- 2008-09-10 TW TW97134707A patent/TWI455966B/zh not_active IP Right Cessation
- 2008-09-10 JP JP2009532262A patent/JP5492561B2/ja not_active Expired - Fee Related
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- 2008-09-10 KR KR1020107000639A patent/KR101546978B1/ko not_active IP Right Cessation
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010035911A1 (ja) * | 2008-09-29 | 2010-04-01 | 帝人株式会社 | ボリ乳酸フィルム |
JP2010083906A (ja) * | 2008-09-29 | 2010-04-15 | Teijin Ltd | ポリ乳酸フィルム及びその製造方法 |
US8748543B2 (en) | 2008-09-29 | 2014-06-10 | Teijin Limited | Polylactic acid film |
JP2011162713A (ja) * | 2010-02-12 | 2011-08-25 | Teijin Ltd | 白色二軸延伸ポリ乳酸フィルム |
JP2012000808A (ja) * | 2010-06-15 | 2012-01-05 | Teijin Ltd | 透明導電性積層体 |
JP2014035393A (ja) * | 2012-08-08 | 2014-02-24 | Sumitomo Chemical Co Ltd | 偏光板及びそれを用いた液晶表示パネル |
JP2016006470A (ja) * | 2013-07-05 | 2016-01-14 | 富士フイルム株式会社 | 偏光板および液晶表示装置 |
JP2017204007A (ja) * | 2017-08-09 | 2017-11-16 | 住友化学株式会社 | 偏光板及びそれを用いた液晶表示パネル |
Also Published As
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KR101546978B1 (ko) | 2015-08-24 |
US20100182694A1 (en) | 2010-07-22 |
KR20100057774A (ko) | 2010-06-01 |
JP5492561B2 (ja) | 2014-05-14 |
US8647738B2 (en) | 2014-02-11 |
TW200932799A (en) | 2009-08-01 |
CN101802057B (zh) | 2014-09-24 |
EP2189493A4 (en) | 2015-07-22 |
HK1143985A1 (en) | 2011-01-21 |
EP2189493A1 (en) | 2010-05-26 |
TWI455966B (zh) | 2014-10-11 |
CN101802057A (zh) | 2010-08-11 |
JPWO2009035127A1 (ja) | 2010-12-24 |
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