WO2023228601A1 - Stratifié absorbant l'oxygène - Google Patents
Stratifié absorbant l'oxygène Download PDFInfo
- Publication number
- WO2023228601A1 WO2023228601A1 PCT/JP2023/014314 JP2023014314W WO2023228601A1 WO 2023228601 A1 WO2023228601 A1 WO 2023228601A1 JP 2023014314 W JP2023014314 W JP 2023014314W WO 2023228601 A1 WO2023228601 A1 WO 2023228601A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- oxygen
- acid
- absorbing
- resin
- diisocyanate
- Prior art date
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title abstract description 69
- 239000001301 oxygen Substances 0.000 title abstract description 69
- 229910052760 oxygen Inorganic materials 0.000 title abstract description 69
- 229920005989 resin Polymers 0.000 claims abstract description 64
- 239000011347 resin Substances 0.000 claims abstract description 64
- 239000002253 acid Substances 0.000 claims abstract description 50
- 239000011342 resin composition Substances 0.000 claims abstract description 22
- 239000003054 catalyst Substances 0.000 claims abstract description 21
- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 19
- 150000003624 transition metals Chemical class 0.000 claims abstract description 18
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- 238000010521 absorption reaction Methods 0.000 description 34
- -1 transition metal salt Chemical class 0.000 description 28
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- IFDVQVHZEKPUSC-UHFFFAOYSA-N cyclohex-3-ene-1,2-dicarboxylic acid Chemical compound OC(=O)C1CCC=CC1C(O)=O IFDVQVHZEKPUSC-UHFFFAOYSA-N 0.000 description 10
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- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 8
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- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 4
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- SBJCUZQNHOLYMD-UHFFFAOYSA-N 1,5-Naphthalene diisocyanate Chemical compound C1=CC=C2C(N=C=O)=CC=CC2=C1N=C=O SBJCUZQNHOLYMD-UHFFFAOYSA-N 0.000 description 1
- ATOUXIOKEJWULN-UHFFFAOYSA-N 1,6-diisocyanato-2,2,4-trimethylhexane Chemical compound O=C=NCCC(C)CC(C)(C)CN=C=O ATOUXIOKEJWULN-UHFFFAOYSA-N 0.000 description 1
- QGLRLXLDMZCFBP-UHFFFAOYSA-N 1,6-diisocyanato-2,4,4-trimethylhexane Chemical compound O=C=NCC(C)CC(C)(C)CCN=C=O QGLRLXLDMZCFBP-UHFFFAOYSA-N 0.000 description 1
- VZXPHDGHQXLXJC-UHFFFAOYSA-N 1,6-diisocyanato-5,6-dimethylheptane Chemical compound O=C=NC(C)(C)C(C)CCCCN=C=O VZXPHDGHQXLXJC-UHFFFAOYSA-N 0.000 description 1
- ALVZNPYWJMLXKV-UHFFFAOYSA-N 1,9-Nonanediol Chemical compound OCCCCCCCCCO ALVZNPYWJMLXKV-UHFFFAOYSA-N 0.000 description 1
- CWKVFRNCODQPDB-UHFFFAOYSA-N 1-(2-aminoethylamino)propan-2-ol Chemical compound CC(O)CNCCN CWKVFRNCODQPDB-UHFFFAOYSA-N 0.000 description 1
- QFGCFKJIPBRJGM-UHFFFAOYSA-N 12-[(2-methylpropan-2-yl)oxy]-12-oxododecanoic acid Chemical compound CC(C)(C)OC(=O)CCCCCCCCCCC(O)=O QFGCFKJIPBRJGM-UHFFFAOYSA-N 0.000 description 1
- UWMHHZFHBCYGCV-UHFFFAOYSA-N 2,3,2-tetramine Chemical compound NCCNCCCNCCN UWMHHZFHBCYGCV-UHFFFAOYSA-N 0.000 description 1
- OJRJDENLRJHEJO-UHFFFAOYSA-N 2,4-diethylpentane-1,5-diol Chemical compound CCC(CO)CC(CC)CO OJRJDENLRJHEJO-UHFFFAOYSA-N 0.000 description 1
- QLSQYTKEUVPIJA-UHFFFAOYSA-N 2-(1-aminopropan-2-ylamino)ethanol Chemical compound NCC(C)NCCO QLSQYTKEUVPIJA-UHFFFAOYSA-N 0.000 description 1
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- UGPWRRVOLLMHSC-UHFFFAOYSA-N 2-[3-(2-hydroxypropan-2-yl)phenyl]propan-2-ol Chemical compound CC(C)(O)C1=CC=CC(C(C)(C)O)=C1 UGPWRRVOLLMHSC-UHFFFAOYSA-N 0.000 description 1
- LEARFTRDZQQTDN-UHFFFAOYSA-N 2-[4-(2-hydroxypropan-2-yl)phenyl]propan-2-ol Chemical compound CC(C)(O)C1=CC=C(C(C)(C)O)C=C1 LEARFTRDZQQTDN-UHFFFAOYSA-N 0.000 description 1
- DSKYSDCYIODJPC-UHFFFAOYSA-N 2-butyl-2-ethylpropane-1,3-diol Chemical compound CCCCC(CC)(CO)CO DSKYSDCYIODJPC-UHFFFAOYSA-N 0.000 description 1
- QWGRWMMWNDWRQN-UHFFFAOYSA-N 2-methylpropane-1,3-diol Chemical compound OCC(C)CO QWGRWMMWNDWRQN-UHFFFAOYSA-N 0.000 description 1
- SLXXMTLSAWWVPD-UHFFFAOYSA-N 2-phenylpropane-1,1-diol Chemical compound OC(O)C(C)C1=CC=CC=C1 SLXXMTLSAWWVPD-UHFFFAOYSA-N 0.000 description 1
- YZTJKOLMWJNVFH-UHFFFAOYSA-N 2-sulfobenzene-1,3-dicarboxylic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1S(O)(=O)=O YZTJKOLMWJNVFH-UHFFFAOYSA-N 0.000 description 1
- RXFCIXRFAJRBSG-UHFFFAOYSA-N 3,2,3-tetramine Chemical compound NCCCNCCNCCCN RXFCIXRFAJRBSG-UHFFFAOYSA-N 0.000 description 1
- DUHQIGLHYXLKAE-UHFFFAOYSA-N 3,3-dimethylglutaric acid Chemical compound OC(=O)CC(C)(C)CC(O)=O DUHQIGLHYXLKAE-UHFFFAOYSA-N 0.000 description 1
- RNLHGQLZWXBQNY-UHFFFAOYSA-N 3-(aminomethyl)-3,5,5-trimethylcyclohexan-1-amine Chemical compound CC1(C)CC(N)CC(C)(CN)C1 RNLHGQLZWXBQNY-UHFFFAOYSA-N 0.000 description 1
- RDFQSFOGKVZWKF-UHFFFAOYSA-N 3-hydroxy-2,2-dimethylpropanoic acid Chemical compound OCC(C)(C)C(O)=O RDFQSFOGKVZWKF-UHFFFAOYSA-N 0.000 description 1
- MWSKJDNQKGCKPA-UHFFFAOYSA-N 6-methyl-3a,4,5,7a-tetrahydro-2-benzofuran-1,3-dione Chemical compound C1CC(C)=CC2C(=O)OC(=O)C12 MWSKJDNQKGCKPA-UHFFFAOYSA-N 0.000 description 1
- CSHJJWDAZSZQBT-UHFFFAOYSA-N 7a-methyl-4,5-dihydro-3ah-2-benzofuran-1,3-dione Chemical class C1=CCCC2C(=O)OC(=O)C21C CSHJJWDAZSZQBT-UHFFFAOYSA-N 0.000 description 1
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229920001634 Copolyester Polymers 0.000 description 1
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 238000012696 Interfacial polycondensation Methods 0.000 description 1
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 description 1
- HDONYZHVZVCMLR-UHFFFAOYSA-N N=C=O.N=C=O.CC1CCCCC1 Chemical compound N=C=O.N=C=O.CC1CCCCC1 HDONYZHVZVCMLR-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- ALQSHHUCVQOPAS-UHFFFAOYSA-N Pentane-1,5-diol Chemical compound OCCCCCO ALQSHHUCVQOPAS-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- 239000004708 Very-low-density polyethylene Substances 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- XMUZQOKACOLCSS-UHFFFAOYSA-N [2-(hydroxymethyl)phenyl]methanol Chemical compound OCC1=CC=CC=C1CO XMUZQOKACOLCSS-UHFFFAOYSA-N 0.000 description 1
- YIMQCDZDWXUDCA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1 YIMQCDZDWXUDCA-UHFFFAOYSA-N 0.000 description 1
- BWVAOONFBYYRHY-UHFFFAOYSA-N [4-(hydroxymethyl)phenyl]methanol Chemical compound OCC1=CC=C(CO)C=C1 BWVAOONFBYYRHY-UHFFFAOYSA-N 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229920006243 acrylic copolymer Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000003172 aldehyde group Chemical group 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- LHIJANUOQQMGNT-UHFFFAOYSA-N aminoethylethanolamine Chemical compound NCCNCCO LHIJANUOQQMGNT-UHFFFAOYSA-N 0.000 description 1
- FNGGVJIEWDRLFV-UHFFFAOYSA-N anthracene-1,2-dicarboxylic acid Chemical compound C1=CC=CC2=CC3=C(C(O)=O)C(C(=O)O)=CC=C3C=C21 FNGGVJIEWDRLFV-UHFFFAOYSA-N 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- DLDJFQGPPSQZKI-UHFFFAOYSA-N but-2-yne-1,4-diol Chemical compound OCC#CCO DLDJFQGPPSQZKI-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000012461 cellulose resin Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- KIQKWYUGPPFMBV-UHFFFAOYSA-N diisocyanatomethane Chemical compound O=C=NCN=C=O KIQKWYUGPPFMBV-UHFFFAOYSA-N 0.000 description 1
- GZCKIUIIYCBICZ-UHFFFAOYSA-L disodium;benzene-1,3-dicarboxylate Chemical compound [Na+].[Na+].[O-]C(=O)C1=CC=CC(C([O-])=O)=C1 GZCKIUIIYCBICZ-UHFFFAOYSA-L 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000009459 flexible packaging Methods 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 239000012793 heat-sealing layer Substances 0.000 description 1
- SXCBDZAEHILGLM-UHFFFAOYSA-N heptane-1,7-diol Chemical compound OCCCCCCCO SXCBDZAEHILGLM-UHFFFAOYSA-N 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 229920000554 ionomer Polymers 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- KYTZHLUVELPASH-UHFFFAOYSA-N naphthalene-1,2-dicarboxylic acid Chemical class C1=CC=CC2=C(C(O)=O)C(C(=O)O)=CC=C21 KYTZHLUVELPASH-UHFFFAOYSA-N 0.000 description 1
- NXPPAOGUKPJVDI-UHFFFAOYSA-N naphthalene-1,2-diol Chemical compound C1=CC=CC2=C(O)C(O)=CC=C21 NXPPAOGUKPJVDI-UHFFFAOYSA-N 0.000 description 1
- RXOHFPCZGPKIRD-UHFFFAOYSA-N naphthalene-2,6-dicarboxylic acid Chemical compound C1=C(C(O)=O)C=CC2=CC(C(=O)O)=CC=C21 RXOHFPCZGPKIRD-UHFFFAOYSA-N 0.000 description 1
- 229940117969 neopentyl glycol Drugs 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- WCVRQHFDJLLWFE-UHFFFAOYSA-N pentane-1,2-diol Chemical compound CCCC(O)CO WCVRQHFDJLLWFE-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 description 1
- 150000003018 phosphorus compounds Chemical class 0.000 description 1
- PMJHHCWVYXUKFD-UHFFFAOYSA-N piperylene Natural products CC=CC=C PMJHHCWVYXUKFD-UHFFFAOYSA-N 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920003226 polyurethane urea Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- AOHJOMMDDJHIJH-UHFFFAOYSA-N propylenediamine Chemical compound CC(N)CN AOHJOMMDDJHIJH-UHFFFAOYSA-N 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 229940063673 spermidine Drugs 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 239000002344 surface layer Substances 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
- 239000010409 thin film Substances 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 229920001866 very low density polyethylene Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000012463 white pigment Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
Definitions
- the present invention relates to an oxygen-absorbing laminate.
- gas exchange packaging in which the air inside the package is replaced with an inert gas such as nitrogen while the contents are filled and sealed.
- gas replacement involves sucking and exhausting air from the package when filling the contents, or forcibly replacing the air inside the package with inert gas, but gas replacement packaging also removes oxygen from the package. It is difficult to completely remove it. For this reason, the present applicant has proposed a packaging film having an oxygen absorption function, for example in Patent Document 1.
- the oxygen-absorbing resin responsible for the oxygen-absorbing performance in the above-mentioned background art starts reacting with oxygen when exposed to air, so it cannot be used in the film manufacturing process, bag-making process, or packaging process for packaging objects. If the oxygen absorption reaction progresses, there is a risk that the oxygen absorption performance will be reduced upon completion of packaging.
- the inventors of the present invention have conducted intensive studies to control the oxygen absorption reaction until the packaging is completed to more effectively utilize the limited oxygen absorption performance of the oxygen-absorbing resin.
- the invention was completed.
- the oxygen-absorbing laminate according to the present invention is an oxygen-absorbing laminate having at least an oxygen-absorbing resin layer containing an oxygen-absorbing resin and a transition metal catalyst, and an adjacent layer adjacent to the oxygen-absorbing resin layer.
- the adjacent layer contains a resin composition having an acid value of 3 mgKOH/g or more.
- the catalytic activity of the transition metal catalyst contained in the oxygen-absorbing resin layer can be suppressed to control the oxygen absorption reaction of the oxygen-absorbing resin.
- the oxygen-absorbing laminate according to the present embodiment is a laminate having at least an oxygen-absorbing resin layer containing an oxygen-absorbing resin and a transition metal catalyst, and an adjacent layer adjacent to the oxygen-absorbing resin layer.
- Such an oxygen-absorbing laminate is suitable for use as a packaging film having an oxygen-absorbing function, and arbitrary layers can be appropriately selected and laminated so as to be more suitable for such use.
- a surface-side base material layer that is located on the front side and forms a surface layer
- an inside-side base material layer that is located on the inside side and forms an inner layer that is in contact with the contents. Material layers etc. can be laminated.
- the layer structure is a front-side base material layer/adjacent layer/oxygen-absorbing resin layer/inner-side base material layer.
- the oxygen-absorbing resin layer contains an oxygen-absorbing resin as a main component, and also contains a transition metal catalyst for the main purpose of promoting the oxygen-absorbing reaction of the oxygen-absorbing resin.
- transition metal catalysts include transition metals such as manganese, iron, cobalt, nickel, copper, silver, tin, titanium, vanadium, chromium, and zirconium, particularly preferably transition metals such as manganese, iron, cobalt, nickel, and copper.
- transition metals such as manganese, iron, cobalt, nickel, copper, silver, tin, titanium, vanadium, chromium, and zirconium, particularly preferably transition metals such as manganese, iron, cobalt, nickel, and copper.
- examples include inorganic salts, organic salts, and complex salts. More specifically, the transition metal catalyst includes a transition metal salt consisting of a transition metal selected from manganese, iron, cobalt, nickel, and copper and an organic acid.
- the transition metal catalyst is preferably an organic acid salt of manganese, iron, or cobalt, and particularly preferably an organic acid salt of cobalt.
- the content of the transition metal catalyst in the oxygen-absorbing resin layer is preferably 1 ppm to 1000 ppm, more preferably 10 ppm to 500 ppm, still more preferably 20 ppm to 300 ppm, in terms of metal.
- the oxygen-absorbing resin it is preferable to use an oxygen-absorbing polyester resin whose structure includes a functional group or a bonding group that is reactive with oxygen.
- the functional group or bonding group having reactivity with oxygen include a carbon-carbon double bond group, an aldehyde group, and a phenolic hydroxyl group.
- unsaturated polyester resins having a carbon-carbon double bond group are preferred, and polyester resins having an unsaturated alicyclic structure are more preferred.
- a polyester resin having an unsaturated alicyclic structure is advantageous because the amount of low molecular weight decomposed components that are by-products in the autooxidation reaction of the resin is suppressed.
- polyester resins having an unsaturated alicyclic structure include polyesters obtained by using tetrahydrophthalic acid or its derivatives or tetrahydrophthalic anhydride or its derivatives as an acid component and polymerizing them with a diol component.
- tetrahydrophthalic acid or its derivatives or tetrahydrophthalic anhydride or its derivatives may be esterified to methyl ester or the like.
- Tetrahydrophthalic acid or its derivatives or tetrahydrophthalic anhydride or its derivatives include 4-methyl- ⁇ 3 -tetrahydrophthalic acid or 4-methyl- ⁇ 3 -tetrahydrophthalic anhydride, cis-3-methyl- ⁇ 4 -tetrahydro Particularly preferred is phthalic acid or cis-3-methyl- ⁇ 4 -tetrahydrophthalic anhydride.
- These tetrahydrophthalic acid or its derivatives or tetrahydrophthalic anhydride or its derivatives have very high reactivity with oxygen and can therefore be suitably used as the acid component.
- these tetrahydrophthalic acid or its derivatives or tetrahydrophthalic anhydride or its derivatives are 4-methyl- ⁇ 4 - which is obtained by reacting a C5 fraction of naphtha containing isoprene and trans-piperylene as main components with maleic anhydride. It can be obtained by structural isomerizing an isomer mixture containing tetrahydrophthalic anhydride, and is produced industrially.
- diol components include ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, trimethylene glycol, 1,3-butanediol, 1,4-butanediol, and 3-methyl.
- aliphatic diols such as diethylene glycol, triethylene glycol, 1,4-butanediol, and more preferred is 1,4-butanediol.
- 1,4-butanediol an oxygen-absorbing polyester resin with high oxygen-absorbing performance and a small amount of decomposed products produced during the oxidation process can be obtained.
- These diol components can be used alone or in combination of two or more.
- the oxygen-absorbing polyester resin may contain other acid components such as aromatic dicarboxylic acids, aliphatic dicarboxylic acids, aliphatic hydroxycarboxylic acids, or derivatives thereof. It may be copolymerized by including it in the raw material monomer.
- Aromatic dicarboxylic acids and their derivatives include phthalic acid, phthalic anhydride, isophthalic acid, benzene dicarboxylic acids such as terephthalic acid, naphthalene dicarboxylic acids such as 2,6-naphthalene dicarboxylic acid, anthracene dicarboxylic acid, sulfoisophthalic acid, and sulfonate dicarboxylic acids. Examples include sodium isophthalate and derivatives thereof. Among these, phthalic acid, phthalic anhydride, isophthalic acid, and terephthalic acid are preferred.
- Aliphatic dicarboxylic acids and their derivatives include oxalic acid, malonic acid, succinic acid, succinic anhydride, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, undecanedioic acid, dodecanedioic acid, 3 , 3-dimethylpentanedioic acid, or derivatives thereof.
- succinic acid, succinic anhydride, adipic acid, and sebacic acid are preferred, and succinic acid is particularly preferred.
- Examples include hexahydrophthalic acid having an alicyclic structure, dimer acid, and derivatives thereof.
- aliphatic hydroxycarboxylic acids and derivatives thereof include glycolic acid, lactic acid, hydroxypivalic acid, hydroxycaproic acid, hydroxyhexanoic acid, and derivatives thereof.
- These other acid components may be esterified, such as dimethyl terephthalate and bis-2-hydroxydiethyl terephthalate, or may be acid anhydrides, such as phthalic anhydride and succinic anhydride. . These other acid components can be used alone or in combination of two or more.
- the glass transition temperature of the resulting oxygen-absorbing polyester resin can be easily controlled, and the oxygen-absorbing performance can be improved. Furthermore, the solubility in organic solvents can be improved by controlling the crystallinity of the oxygen-absorbing polyester resin.
- tetrahydrophthalic acid or its derivatives or tetrahydrophthalic anhydride or its derivatives are susceptible to radical crosslinking reactions due to heat during polymerization
- other acid components may be blended to remove tetrahydrophthalic acid or its derivatives contained in the raw material monomers.
- gelation during polymerization can be suppressed and a high molecular weight oxygen-absorbing polyester resin can be stably obtained.
- the oxygen-absorbing polyester resin may further contain a structural unit derived from a polyhydric alcohol, a polycarboxylic acid, a derivative thereof, or the like.
- a structural unit derived from a polyhydric alcohol, a polycarboxylic acid, a derivative thereof, or the like By controlling the branched structure by introducing a polyhydric alcohol and a polyhydric carboxylic acid, the melt viscosity characteristics and the solution viscosity characteristics of the polyester dissolved in the solvent can be adjusted.
- Polyhydric alcohols and their derivatives include 1,2,3-propanetriol, sorbitol, 1,3,5-pentanetriol, 1,5,8-heptanetriol, trimethylolpropane, pentaerythritol, 3,5-dihydroxy
- Examples include benzyl alcohol, glycerin, and derivatives thereof.
- Examples of polycarboxylic acids and derivatives thereof include 1,2,3-propanetricarboxylic acid, meso-butane-1,2,3,4-tetracarboxylic acid, citric acid, trimellitic acid, pyromellitic acid, or these. Examples include derivatives.
- the amount is preferably within 5 mol % based on the total acid component.
- the oxygen-absorbing resin includes tetrahydrophthalic acid or its derivatives or tetrahydrophthalic anhydride or its derivatives as an acid component, 1,4-butanediol as a diol component, and succinic acid or succinic anhydride as an acid component. It is preferable to use an oxygen-absorbing polyester resin obtained by copolymerizing these as the acid component.
- the structural unit derived from tetrahydrophthalic acid or its derivative or tetrahydrophthalic anhydride or its derivative contained in the oxygen-absorbing polyester resin preferably accounts for 70 to 95 mol% of the total acid component. , more preferably 75 to 95 mol%, still more preferably 80 to 95 mol%.
- the structural unit derived from succinic acid or succinic anhydride preferably accounts for 0 to 15 mol%, more preferably 0 to 12.5 mol%, and even more preferably 0 to 12.5 mol% of the total acid components. It is 10 mol%.
- the oxygen-absorbing polyester resin can be synthesized, for example, by interfacial polycondensation, solution polycondensation, melt polycondensation, or solid phase polycondensation.
- a polymerization catalyst is not necessarily required, but a typical polyester polymerization catalyst such as titanium-based, germanium-based, antimony-based, tin-based, or aluminum-based catalyst can be used.
- Known polymerization catalysts such as nitrogen-containing basic compounds, boric acid and boric acid esters, and organic sulfonic acid compounds can also be used.
- various additives such as coloring inhibitors such as phosphorus compounds and antioxidants may be added. By adding an antioxidant, it is possible to suppress oxygen absorption during polymerization and subsequent processing, thereby suppressing performance deterioration and gelation of the oxygen-absorbing resin.
- the raw material monomers are adjusted so that the melt viscosity at a shear rate of 100 s -1 at a temperature of 220° C. is less than 90 Pa.s, preferably less than 60 Pa.s, and more preferably less than 30 Pa.s. It is preferable to adjust polymerization conditions such as composition ratio and molecular weight as appropriate. By keeping the melt viscosity low, it is possible to exhibit good coating properties, and by adding a hardening agent, it is possible to achieve desired material strength, making it suitable as a solvent-soluble dry laminating adhesive. It can be suitably used.
- the number average molecular weight of the oxygen-absorbing polyester resin is preferably 500 to 100,000, more preferably 2,000 to 10,000. Further, the weight average molecular weight is preferably 5,000 to 200,000, more preferably 10,000 to 100,000, and still more preferably 20,000 to 70,000. If the molecular weight is lower than the above range, the cohesive force or creep resistance of the resin will decrease, and if it is higher, the solubility in organic solvents will decrease and the coatability will decrease due to an increase in solution viscosity, which is not preferred.
- the glass transition temperature of the oxygen-absorbing polyester resin is preferably -20°C to 10°C, more preferably -15°C to 6°C, and even more preferably -12°C to 2°C.
- the acid value of the oxygen-absorbing polyester resin is preferably less than 3 mgKOH/g, more preferably less than 1 mgKOH/g, in order to obtain sufficient oxygen absorption performance. If the acid value exceeds 3 mgKOH/g, rapid autooxidation reaction may be hindered and stable oxygen absorption performance may not be obtained. Note that the method for measuring the acid value of the oxygen-absorbing polyester resin is based on JIS K 0070.
- the laminate strength of oxygen-absorbing polyester resins may decrease due to internal stress generated along with oxygen-absorbing reactions (oxidative hardening reactions).
- oxidative hardening reactions oxygen-absorbing reactions
- the saturated polyester resin is a polyester resin that does not substantially contain carbon-carbon double bond groups, and can be obtained, for example, by polycondensation of a dicarboxylic acid component, a diol component, or a hydroxycarboxylic acid component.
- the saturated polyester resin is preferably a polyester having an iodine value of 3 g/100 g or less, particularly a polyester having an iodine value of 1 g/100 g or less.
- the iodine value of the saturated polyester resin exceeds 3 g/100 g, it is not preferable because low molecular weight decomposed components are likely to be generated due to the oxygen absorption reaction of the oxygen absorbing resin. Note that the method for measuring the iodine value is based on JIS K 0070.
- dicarboxylic acid component examples include aromatic dicarboxylic acids, aliphatic dicarboxylic acids, hexahydrophthalic acid, dimer acids, and derivatives thereof, which are exemplified as components of the oxygen-absorbing polyester resin described above. These can be used alone or in combination of two or more.
- diol component examples include the diols exemplified as components of the oxygen-absorbing polyester resin described above. These can be used alone or in combination of two or more.
- hydroxycarboxylic acid component examples include the aliphatic hydroxycarboxylic acids exemplified as components of the oxygen-absorbing polyester resin described above.
- the glass transition temperature of the saturated polyester resin is preferably -10°C or lower, more preferably -70°C to -15°C, and even more preferably -60°C to -20°C.
- the ratio A/B of the oxygen-absorbing polyester resin (A) and the saturated polyester resin (B) is preferably 0.6 to 9, more preferably 1 to 9, and still more preferably 2 to 9. .
- By setting the ratio A/B within such a range it is possible to exhibit excellent oxygen absorption performance and maintain strong laminate strength before and after oxygen absorption.
- the oxygen-absorbing resin can be prepared by dissolving it in an organic solvent so that it can be used as an oxygen-absorbing adhesive.
- organic solvent include ethyl acetate, acetone, methyl ethyl ketone, methyl isobutyl ketone, toluene, xylene, and isopropanol.
- ethyl acetate is commonly used as a solvent for dry laminating adhesives for flexible packaging because it has relatively few odor problems caused by residual solvents, and when considering industrial applications, ethyl acetate, which does not contain toluene or xylene, is used.
- one solvent is used.
- an oxygen-absorbing polyester resin When using an oxygen-absorbing polyester resin, it can be used as a two-component curing adhesive by blending an isocyanate curing agent with it.
- an isocyanate-based curing agent When an isocyanate-based curing agent is blended, adhesive strength and cohesive force are increased, and curing can be performed at a low temperature around room temperature.
- the isocyanate curing agent include aliphatic isocyanates such as xylylene diisocyanate (XDI), hexamethylene diisocyanate (HDI), lysine diisocyanate, lysine methyl ester diisocyanate, trimethylhexamethylene diisocyanate, and n-pentane-1,4-diisocyanate.
- Examples include alicyclic isocyanate-based curing agents such as isophorone diisocyanate (IPDI), cyclohexane-1,4-diisocyanate, methylcyclohexyl diisocyanate, and dicyclohexylmethane-4,4'-diisocyanate.
- IPDI isophorone diisocyanate
- XDI and HDI are preferable as the aliphatic isocyanate curing agent
- IPDI is preferable as the alicyclic isocyanate curing agent.
- Particularly preferred is XDI. By using XDI, the most excellent oxygen absorption performance is exhibited.
- aliphatic and/or alicyclic isocyanate curing agents are preferably used as polyisocyanate compounds with increased molecular weight, such as adducts, isocyanurates, and burettes. Further, these aliphatic and/or alicyclic isocyanate curing agents may be used alone or in combination of two or more.
- the isocyanate curing agent is preferably added in an amount of 3 phr to 30 phr, more preferably 3 phr to 20 phr, still more preferably 3 phr to 15 phr, based on the solid weight part, relative to the oxygen-absorbing polyester resin that is the main ingredient. If the amount added is too small, the adhesion and cohesive force will be insufficient, and if it is too large, the amount of the oxygen absorbing component contained in the unit weight of the resin composition will be small, resulting in insufficient oxygen absorption performance. Furthermore, if the mobility of the resin is significantly reduced due to curing, the oxygen absorption reaction will be difficult to proceed and the oxygen absorption performance will be reduced.
- the adjacent layer contains a resin composition with an acid value of 3 mgKOH/g or more, preferably an acid value of 4 mgKOH/g or more, more preferably an acid value of 5 mgKOH/g or more, and a transition metal that promotes the oxygen absorption reaction of the oxygen-absorbing resin.
- the layer is laminated adjacent to the oxygen-absorbing resin layer in order to trap the catalyst through coordination bonds or the like, suppress its catalytic activity, and control the oxygen-absorbing reaction of the oxygen-absorbing resin. Note that the method for measuring the acid value is based on JIS K 0070.
- any resin composition that has an acidic group such as a carboxyl group in the side chain or at the end and has an acid value equal to or higher than the above-mentioned value can be used.
- a resin composition preferably contains a polyurethane resin. More specifically, polyurethane resins produced by condensation reaction of polyol and polyisocyanate, or polyurethane polymers having terminal isocyanate groups, which are condensation reaction products of polyol and polyisocyanate, are produced by reaction with polyamines. It is preferable that the polyurethane resin (polyurethane urea resin) is contained.
- a polyurethane resin in which a carboxyl group is introduced into the side chain or terminal.
- the compound used to introduce a carboxyl group may be a compound that reacts with an isocyanate group and has a free carboxyl group, such as a hydroxycarboxylic acid or an aminocarboxylic acid, or a compound that reacts with an isocyanate group, or a compound that reacts with an isocyanate group, or a compound that reacts with an isocyanate group and that has a free carboxyl group, or a compound that reacts with an isocyanate group, and a compound that reacts with an isocyanate group, such as a hydroxycarboxylic acid or an aminocarboxylic acid that has a free carboxyl group, or a compound that reacts with an isocyanate group.
- a cyclic dicarboxylic acid anhydride that forms a carboxyl group can be used.
- a polyester polyol obtained by esterifying a dibasic acid and a diol can be used.
- dibasic acids include oxalic acid, malonic acid, succinic acid, succinic anhydride, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, maleic acid, fumaric acid, phthalic anhydride, and isophthalic acid.
- diols examples include ethylene glycol, diethylene glycol, 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 1,8-octanediol, 1, Linear diols such as 9-nonanediol, 1,4-butynediol, 1,4-butylenediol, diethylene glycol, triethylene glycol, 2-butyl-2-ethyl-1,3-propanediol, 2-methyl- 1,3-propanediol, 3-methyl-1,5-pentanediol, neopentyl glycol, pentylene glycol, 1,2-propylene glycol, 2,4-diethyl-1,5-pentanediol, 1,3- Branched diols such as butanediol and dipropylene glycol are mentioned. These can
- polyisocyanates examples include 1,5-naphthylene diisocyanate, 4,4'-diphenylmethane diisocyanate, 4,4'-diphenyldimethylmethane diisocyanate, 4,4'-dibenzylisocyanate, dialkyldiphenylmethane diisocyanate, and tetraalkyl diisocyanate.
- polyamines examples include ethylenediamine, propylenediamine, hexamethylenediamine, isophoronediamine, dicyclohexylmethane-4,4'-diamine, 2-hydroxyethylethylenediamine, 2-hydroxyethylpropyldiamine, 2-hydroxyethylpropylenediamine, Di-2-hydroxyethylethylenediamine, di-2-hydroxyethylenediamine, di-2-hydroxyethylpropylenediamine, 2-hydroxypropylethylenediamine, di-2-hydroxypropylethylenediamine, diethylenetriamine, iminobispropylamine: (IBPA, 3,3'-diaminodipropylamine), N-(3-aminopropyl)butane-1,4-diamine: (spermidine), 6,6-iminodihexylamine, 3,7-diazanonane-1,9-diamine , N,N'-bis(3-
- dibasic acids such as sebacic acid, succinic acid, dimer acid, ethylene glycol, 1,2-propylene glycol, 1,3-propanediol, 1,4-butanediol, neopentyl glycol, pentyl glycol, etc.
- Diols such as lene glycol, diisocyanates such as 1,5-pentamethylene diisocyanate, and dimer diisocyanate are available as biomass-derived raw materials, and by copolymerizing polyurethane resin using these biomass-derived raw material components, Its biomass degree can be increased.
- the adjacent layer can be formed, for example, by a printing ink prepared using the above resin composition as a binder resin.
- resins other than polyurethane resins such as vinyl chloride-vinyl acetate copolymer resin, vinyl chloride-acrylic copolymer resin, cellulose resin, rosin resin, etc. It is preferable to prepare a binder resin by appropriately combining one or more types of components, and among these, it is particularly preferable to use a vinyl chloride-vinyl acetate copolymer resin.
- the acid value of the resin composition used for the binder resin should be adjusted to be equal to or higher than the above-mentioned value.
- the thickness of the adjacent layer is preferably 0.1 to 10 ⁇ m, more preferably 0.2 to 5 ⁇ m, and even more preferably 0.3 to 3 ⁇ m. It is.
- the printing ink forming the adjacent layer may be prepared as a medium containing no pigment, or may be prepared as a colored ink containing an inorganic pigment or an organic pigment.
- some inorganic pigments such as titanium oxide, which is generally known as a white pigment, function as catalysts that promote the oxygen absorption reaction of oxygen-absorbing resins, and such pigments may If it is contained in the above, it is not preferable because it impairs the effect of the present invention.
- organic solvents for preparing printing inks include ethyl acetate, acetone, methyl ethyl ketone, methyl isobutyl ketone, toluene, xylene, isopropanol, and the like.
- a biaxially stretched film made of polyester resin such as polyethylene terephthalate, polyamide resin such as nylon, etc. is used as the base film, and polyvinyl Coating layers based on oxygen barrier resins such as alcohol-based resins, ethylene-vinyl alcohol copolymers, polyacrylic acid-based resins, and vinylidene chloride-based resins, metal oxides such as silica and alumina, or vapor-deposited thin films of metals, etc.
- a laminated film including a laminated film a laminated film formed by dry laminating a metal foil such as an aluminum foil on the base film with a urethane adhesive or the like interposed therebetween
- the present invention is not limited thereto.
- the inner side base material layer may be a single layer or a laminate.
- the base resin include polyolefin resins and polyester resins.
- polyolefin resins include low density polyethylene (LDPE), medium density polyethylene (MDPE), high density polyethylene (HDPE), linear low density polyethylene (LLDPE), linear very low density polyethylene (LVLDPE), and polypropylene.
- PP ethylene-propylene copolymer
- polybutene-1 polybutene-1
- ethylene-butene-1 copolymer propylene-butene-1 copolymer
- ethylene-propylene-butene-1 copolymer ethylene-vinyl acetate copolymer
- ionomer ionically crosslinked olefin copolymer
- LDPE and LLDPE which have excellent heat-sealability, are particularly preferred.
- polyester resin polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polyethylene naphthalate (PEN), copolyesters thereof, or blends thereof are preferable.
- polyester resin modified with isophthalic acid is preferable because it has low crystallinity and can be heat-sealed.
- the oxygen-absorbing resin layer containing an oxygen-absorbing resin and a transition metal catalyst that promotes the oxygen-absorbing reaction has an acid value of 3 mgKOH/g or more (preferably the above-mentioned value).
- the transition metal catalyst can be captured by coordination bonds or the like, and the catalytic activity can be suppressed. This reduces the amount of oxygen absorbed by the oxygen-absorbing resin at the initial stage of exposure to air and the start of the oxygen absorption reaction, thereby reducing the influence of air exposure and improving handling properties. It is possible to control the oxygen absorption reaction of the oxygen-absorbing resin so that the rate at which the oxygen absorption amount of the oxygen-absorbing resin decreases decreases over time. It becomes possible to exhibit absorption performance more effectively.
- Example 1 As the acid component, a methyltetrahydrophthalic anhydride isomer mixture (manufactured by Hitachi Chemical Co., Ltd.; HN-2200) was used at a molar ratio of 0.9, as the other acid component was succinic anhydride at a molar ratio of 0.1, and as the diol component was a 1,4- A reaction vessel was charged with butanediol at a molar ratio of 1.3 and isopropyl titanate as a polymerization catalyst at a composition ratio of 300 ppm, and the mixture was reacted for about 6 hours in a nitrogen atmosphere while removing generated water at 150° C. to 200° C.
- a methyltetrahydrophthalic anhydride isomer mixture manufactured by Hitachi Chemical Co., Ltd.; HN-2200
- the oxygen-absorbing polyester resin (A) had a number average molecular weight (Mn) of 4,800, a weight average molecular weight (Mw) of 57,200, and a glass transition point (Tg) of -5.0°C.
- a saturated polyester resin (B) manufactured by DIC Corporation; Polysizer W4010/Mn: 3600, Mw: 9500
- Tg Tg
- -26°C Tg
- HDI/IPDI curing agent DI Graphics Co., Ltd. KL-75
- cobalt neodecanoate was added in an amount of 80 ppm in terms of metal based on the total solid content, and dissolved in ethyl acetate to prepare an oxygen-absorbing adhesive solution with a solid content concentration of 20 wt%.
- a resin composition containing a polyurethane resin prepared by copolymerizing raw materials containing neopentyl glycol, adipic acid, and isophorone diisocyanate and having an acid value of 7.5 mgKOH/g was diluted with ethyl acetate and transparently vapor-deposited using a bar coater. It was applied to the barrier coating surface of a nylon film (manufactured by Toppan Printing Co., Ltd.; GL-EY/film thickness 15 ⁇ m), and the solvent was evaporated with hot air from a hair dryer to form a 1 ⁇ m thick resin layer as an adjacent layer.
- an oxygen-absorbing adhesive solution is applied to the adjacent layer using a #15 bar coater, and the solvent is evaporated with hot air from a hair dryer.
- the resulting laminate was passed through a hot roll at 50°C with the corona-treated surfaces facing each other (40 ⁇ m) and cured for 5 days at 35°C under a nitrogen atmosphere to form a surface-side base material layer (transparent vapor-deposited nylon film: film).
- An oxygen-absorbing laminate consisting of an adjacent layer (thickness: 15 ⁇ m)/an oxygen-absorbing resin layer (thickness: 4 ⁇ m)/inner side base material layer (LDPE film: thickness: 40 ⁇ m) was obtained.
- the oxygen absorbing performance of the oxygen absorbing laminate thus obtained was evaluated.
- the results are shown in Table 1. Note that the oxygen absorption performance was evaluated as follows. ⁇ Oxygen absorption performance> A test piece of the oxygen-absorbing laminate cut out to 2 cm x 15 cm was placed in an oxygen-impermeable steel foil laminated cup with an internal volume of 85 cm 3 , heat-sealed and sealed with an aluminum foil laminated film lid, and heated at 22°C - 90%. It was stored under RH atmosphere. Thereafter, the oxygen concentration in the cup was measured using a micro gas chromatograph (Shimadzu Corporation: GC-2014AT) after 6 hours (6 hours) and 24 hours (24 hours). The amount of oxygen absorbed per 1 cm 2 of the laminate was calculated.
- GC-2014AT micro gas chromatograph
- Example 2 A resin composition containing a polyurethane resin formed by copolymerizing raw materials containing 3-methyl-1,5-pentanediol, adipic acid, and isophorone diisocyanate and having an acid value of 5.3 mgKOH/g is used to An oxygen-absorbing laminate was obtained in the same manner as in Example 1 except that the layers were formed. The oxygen absorbing performance of the obtained oxygen absorbing laminate was evaluated in the same manner as in Example 1. The results are also shown in Table 1.
- Example 3 A resin composition containing a polyurethane resin formed by copolymerizing raw materials containing 3-methyl-1,5-pentanediol, adipic acid, sebacic acid, and isophorone diisocyanate and adjusted to an acid value of 5.4 mgKOH/g is used.
- An oxygen-absorbing laminate was obtained in the same manner as in Example 1, except that the adjacent layer was formed.
- the oxygen absorbing performance of the obtained oxygen absorbing laminate was evaluated in the same manner as in Example 1. The results are also shown in Table 1.
- Example 4 Except that the adjacent layer was formed using a resin composition containing a polyurethane resin formed by copolymerizing raw material components containing ethylene glycol, adipic acid, and isophorone diisocyanate and having an acid value of 4.2 mgKOH/g.
- An oxygen-absorbing laminate was obtained in the same manner as in Example 1.
- the oxygen absorbing performance of the obtained oxygen absorbing laminate was evaluated in the same manner as in Example 1. The results are also shown in Table 1.
- Example 5 An oxygen-absorbing laminate was obtained in the same manner as in Example 1, except that 40% by weight of carbon black was added when preparing the resin composition. The oxygen absorbing performance of the obtained oxygen absorbing laminate was evaluated in the same manner as in Example 1. The results are also shown in Table 1.
- Example 1 A resin composition containing a polyurethane resin formed by copolymerizing raw materials containing 3-methyl-1,5-pentanediol, adipic acid, and isophorone diisocyanate and having an acid value of 0.6 mgKOH/g is used to An oxygen-absorbing laminate was obtained in the same manner as in Example 1 except that the layers were formed. The oxygen absorbing performance of the obtained oxygen absorbing laminate was evaluated in the same manner as in Example 1. The results are also shown in Table 1.
- Example 2 An oxygen-absorbing laminate was obtained in the same manner as in Example 1, except that cobalt neodecanoate as a catalyst was not added when preparing the oxygen-absorbing adhesive solution. The oxygen absorbing performance of the obtained oxygen absorbing laminate was evaluated in the same manner as in Example 1. The results are also shown in Table 1.
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Abstract
La présente invention commande la réaction d'absorption d'oxygène d'une résine absorbant l'oxygène en fournissant une couche contenant une composition de résine ayant un indice d'acide de 3 mgKOH/g ou plus de telle sorte que la couche est adjacente à une couche de résine absorbant l'oxygène qui contient une résine absorbant l'oxygène et un catalyseur de métal de transition. La présente invention permet ainsi de démontrer plus efficacement les performances d'absorption d'oxygène fini de la résine absorbant l'oxygène.
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JP2015217558A (ja) * | 2014-05-15 | 2015-12-07 | 凸版印刷株式会社 | ガスバリア性包装材料 |
JP2016199744A (ja) * | 2015-04-07 | 2016-12-01 | 日本合成化学工業株式会社 | 樹脂組成物及びこれを用いた多層構造体 |
JP2020040321A (ja) * | 2018-09-12 | 2020-03-19 | 大日本印刷株式会社 | 酸素吸収性積層体およびそれを用いた包装材料と包装袋 |
JP2021074969A (ja) * | 2019-11-11 | 2021-05-20 | 東洋製罐グループホールディングス株式会社 | 酸素吸収性積層体又はその製造方法 |
JP2021171941A (ja) * | 2020-04-21 | 2021-11-01 | 三菱ケミカル株式会社 | 多層構造体 |
JP2022014243A (ja) * | 2020-07-06 | 2022-01-19 | 大日本印刷株式会社 | 酸素吸収性紙系積層体 |
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JP2016199744A (ja) * | 2015-04-07 | 2016-12-01 | 日本合成化学工業株式会社 | 樹脂組成物及びこれを用いた多層構造体 |
JP2020040321A (ja) * | 2018-09-12 | 2020-03-19 | 大日本印刷株式会社 | 酸素吸収性積層体およびそれを用いた包装材料と包装袋 |
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JP2021171941A (ja) * | 2020-04-21 | 2021-11-01 | 三菱ケミカル株式会社 | 多層構造体 |
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