JP5373306B2 - 多層ペレットおよび樹脂成形品 - Google Patents
多層ペレットおよび樹脂成形品 Download PDFInfo
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- JP5373306B2 JP5373306B2 JP2008090868A JP2008090868A JP5373306B2 JP 5373306 B2 JP5373306 B2 JP 5373306B2 JP 2008090868 A JP2008090868 A JP 2008090868A JP 2008090868 A JP2008090868 A JP 2008090868A JP 5373306 B2 JP5373306 B2 JP 5373306B2
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- Prior art keywords
- polyamide
- resin
- multilayer
- pellet
- acid
- Prior art date
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- 239000008188 pellet Substances 0.000 title claims description 76
- 229920005989 resin Polymers 0.000 title claims description 47
- 239000011347 resin Substances 0.000 title claims description 47
- 239000004952 Polyamide Substances 0.000 claims description 47
- 229920002647 polyamide Polymers 0.000 claims description 47
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims description 39
- 239000011342 resin composition Substances 0.000 claims description 35
- 159000000003 magnesium salts Chemical class 0.000 claims description 33
- 229910052751 metal Inorganic materials 0.000 claims description 29
- 239000002184 metal Substances 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 17
- 238000000465 moulding Methods 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 58
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 description 34
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 34
- 238000011156 evaluation Methods 0.000 description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 28
- 239000000047 product Substances 0.000 description 21
- 150000003839 salts Chemical class 0.000 description 19
- 238000002844 melting Methods 0.000 description 15
- 230000008018 melting Effects 0.000 description 15
- 229920002292 Nylon 6 Polymers 0.000 description 14
- 230000015572 biosynthetic process Effects 0.000 description 12
- -1 alkaline earth metal salt Chemical class 0.000 description 11
- 230000004888 barrier function Effects 0.000 description 10
- 239000007789 gas Substances 0.000 description 10
- 239000000499 gel Substances 0.000 description 10
- 239000012792 core layer Substances 0.000 description 9
- 238000001125 extrusion Methods 0.000 description 8
- 239000005022 packaging material Substances 0.000 description 8
- 239000007864 aqueous solution Substances 0.000 description 7
- 229920001577 copolymer Polymers 0.000 description 7
- 235000013305 food Nutrition 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- VHRGRCVQAFMJIZ-UHFFFAOYSA-N cadaverine Chemical compound NCCCCCN VHRGRCVQAFMJIZ-UHFFFAOYSA-N 0.000 description 6
- 229920001567 vinyl ester resin Polymers 0.000 description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical group C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 5
- 239000005977 Ethylene Substances 0.000 description 5
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 159000000007 calcium salts Chemical class 0.000 description 4
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 4
- 229920006122 polyamide resin Polymers 0.000 description 4
- KIDHWZJUCRJVML-UHFFFAOYSA-N putrescine Chemical compound NCCCCN KIDHWZJUCRJVML-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 150000004985 diamines Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- PWSKHLMYTZNYKO-UHFFFAOYSA-N heptane-1,7-diamine Chemical compound NCCCCCCCN PWSKHLMYTZNYKO-UHFFFAOYSA-N 0.000 description 3
- ALBYIUDWACNRRB-UHFFFAOYSA-N hexanamide Chemical compound CCCCCC(N)=O ALBYIUDWACNRRB-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- UEGPKNKPLBYCNK-UHFFFAOYSA-L magnesium acetate Chemical compound [Mg+2].CC([O-])=O.CC([O-])=O UEGPKNKPLBYCNK-UHFFFAOYSA-L 0.000 description 3
- 239000011654 magnesium acetate Substances 0.000 description 3
- 235000011285 magnesium acetate Nutrition 0.000 description 3
- 229940069446 magnesium acetate Drugs 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000005453 pelletization Methods 0.000 description 3
- 238000007127 saponification reaction Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- PWGJDPKCLMLPJW-UHFFFAOYSA-N 1,8-diaminooctane Chemical compound NCCCCCCCCN PWGJDPKCLMLPJW-UHFFFAOYSA-N 0.000 description 2
- PBLZLIFKVPJDCO-UHFFFAOYSA-N 12-aminododecanoic acid Chemical compound NCCCCCCCCCCCC(O)=O PBLZLIFKVPJDCO-UHFFFAOYSA-N 0.000 description 2
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 2
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-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
- 238000010521 absorption reaction Methods 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 239000003905 agrochemical Substances 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 239000002981 blocking agent Substances 0.000 description 2
- 229910001424 calcium ion Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
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- 238000010924 continuous production Methods 0.000 description 2
- 239000002537 cosmetic Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- YMHQVDAATAEZLO-UHFFFAOYSA-N cyclohexane-1,1-diamine Chemical compound NC1(N)CCCCC1 YMHQVDAATAEZLO-UHFFFAOYSA-N 0.000 description 2
- NZNMSOFKMUBTKW-UHFFFAOYSA-N cyclohexanecarboxylic acid Chemical compound OC(=O)C1CCCCC1 NZNMSOFKMUBTKW-UHFFFAOYSA-N 0.000 description 2
- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical compound CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- DGXRZJSPDXZJFG-UHFFFAOYSA-N docosanedioic acid Chemical compound OC(=O)CCCCCCCCCCCCCCCCCCCCC(O)=O DGXRZJSPDXZJFG-UHFFFAOYSA-N 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- MNWFXJYAOYHMED-UHFFFAOYSA-N heptanoic acid Chemical compound CCCCCCC(O)=O MNWFXJYAOYHMED-UHFFFAOYSA-N 0.000 description 2
- QQHJDPROMQRDLA-UHFFFAOYSA-N hexadecanedioic acid Chemical compound OC(=O)CCCCCCCCCCCCCCC(O)=O QQHJDPROMQRDLA-UHFFFAOYSA-N 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 2
- 230000001771 impaired effect Effects 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
- 229910001425 magnesium ion 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
- 239000012528 membrane Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- SXJVFQLYZSNZBT-UHFFFAOYSA-N nonane-1,9-diamine Chemical compound NCCCCCCCCCN SXJVFQLYZSNZBT-UHFFFAOYSA-N 0.000 description 2
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- FBUKVWPVBMHYJY-UHFFFAOYSA-N nonanoic acid Chemical compound CCCCCCCCC(O)=O FBUKVWPVBMHYJY-UHFFFAOYSA-N 0.000 description 2
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229920005672 polyolefin resin Polymers 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- TYFQFVWCELRYAO-UHFFFAOYSA-N suberic acid Chemical compound OC(=O)CCCCCCC(O)=O TYFQFVWCELRYAO-UHFFFAOYSA-N 0.000 description 2
- XFNJVJPLKCPIBV-UHFFFAOYSA-N trimethylenediamine Chemical compound NCCCN XFNJVJPLKCPIBV-UHFFFAOYSA-N 0.000 description 2
- LWBHHRRTOZQPDM-UHFFFAOYSA-N undecanedioic acid Chemical compound OC(=O)CCCCCCCCCC(O)=O LWBHHRRTOZQPDM-UHFFFAOYSA-N 0.000 description 2
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- GEYOCULIXLDCMW-UHFFFAOYSA-N 1,2-phenylenediamine Chemical compound NC1=CC=CC=C1N GEYOCULIXLDCMW-UHFFFAOYSA-N 0.000 description 1
- RTTZISZSHSCFRH-UHFFFAOYSA-N 1,3-bis(isocyanatomethyl)benzene Chemical compound O=C=NCC1=CC=CC(CN=C=O)=C1 RTTZISZSHSCFRH-UHFFFAOYSA-N 0.000 description 1
- PXGZQGDTEZPERC-UHFFFAOYSA-N 1,4-cyclohexanedicarboxylic acid Chemical compound OC(=O)C1CCC(C(O)=O)CC1 PXGZQGDTEZPERC-UHFFFAOYSA-N 0.000 description 1
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 1
- REHQLKUNRPCYEW-UHFFFAOYSA-N 1-methylcyclohexane-1-carboxylic acid Chemical compound OC(=O)C1(C)CCCCC1 REHQLKUNRPCYEW-UHFFFAOYSA-N 0.000 description 1
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 description 1
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 1
- XAUQWYHSQICPAZ-UHFFFAOYSA-N 10-amino-decanoic acid Chemical compound NCCCCCCCCCC(O)=O XAUQWYHSQICPAZ-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
- DWFUTNJGNBYHNN-UHFFFAOYSA-N 2,2,4-trimethylhexanedioic acid Chemical compound OC(=O)CC(C)CC(C)(C)C(O)=O DWFUTNJGNBYHNN-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- JXPHLUCMHXXHEJ-UHFFFAOYSA-N 2-(aminomethyl)-4-bromoaniline Chemical compound NCC1=CC(Br)=CC=C1N JXPHLUCMHXXHEJ-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- CABMTIJINOIHOD-UHFFFAOYSA-N 2-[4-methyl-5-oxo-4-(propan-2-yl)-4,5-dihydro-1H-imidazol-2-yl]quinoline-3-carboxylic acid Chemical compound N1C(=O)C(C(C)C)(C)N=C1C1=NC2=CC=CC=C2C=C1C(O)=O CABMTIJINOIHOD-UHFFFAOYSA-N 0.000 description 1
- CGMMPMYKMDITEA-UHFFFAOYSA-N 2-ethylbenzoic acid Chemical compound CCC1=CC=CC=C1C(O)=O CGMMPMYKMDITEA-UHFFFAOYSA-N 0.000 description 1
- NWYDEWXSKCTWMJ-UHFFFAOYSA-N 2-methylcyclohexane-1,1-diamine Chemical compound CC1CCCCC1(N)N NWYDEWXSKCTWMJ-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- LYYMXXCLJITKJU-UHFFFAOYSA-N 4,5-dimethylhexane-1,5-diamine Chemical compound CC(N)(C)C(C)CCCN LYYMXXCLJITKJU-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
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- 239000005632 Capric acid (CAS 334-48-5) Substances 0.000 description 1
- 239000005635 Caprylic acid (CAS 124-07-2) Substances 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical class NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- WJJMNDUMQPNECX-UHFFFAOYSA-N Dipicolinic acid Natural products OC(=O)C1=CC=CC(C(O)=O)=N1 WJJMNDUMQPNECX-UHFFFAOYSA-N 0.000 description 1
- JJOJFIHJIRWASH-UHFFFAOYSA-N Eicosanedioic acid Natural products OC(=O)CCCCCCCCCCCCCCCCCCC(O)=O JJOJFIHJIRWASH-UHFFFAOYSA-N 0.000 description 1
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- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 1
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- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
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- QLBRROYTTDFLDX-UHFFFAOYSA-N [3-(aminomethyl)cyclohexyl]methanamine Chemical compound NCC1CCCC(CN)C1 QLBRROYTTDFLDX-UHFFFAOYSA-N 0.000 description 1
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- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 159000000009 barium salts Chemical class 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
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- 238000009835 boiling Methods 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical class [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
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- 239000003086 colorant Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
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- VZFUCHSFHOYXIS-UHFFFAOYSA-N cycloheptane carboxylic acid Natural products OC(=O)C1CCCCCC1 VZFUCHSFHOYXIS-UHFFFAOYSA-N 0.000 description 1
- YQLZOAVZWJBZSY-UHFFFAOYSA-N decane-1,10-diamine Chemical compound NCCCCCCCCCCN YQLZOAVZWJBZSY-UHFFFAOYSA-N 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 150000001991 dicarboxylic acids Chemical class 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- QFTYSVGGYOXFRQ-UHFFFAOYSA-N dodecane-1,12-diamine Chemical compound NCCCCCCCCCCCCN QFTYSVGGYOXFRQ-UHFFFAOYSA-N 0.000 description 1
- 239000003480 eluent Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- YCUBDDIKWLELPD-UHFFFAOYSA-N ethenyl 2,2-dimethylpropanoate Chemical compound CC(C)(C)C(=O)OC=C YCUBDDIKWLELPD-UHFFFAOYSA-N 0.000 description 1
- UIWXSTHGICQLQT-UHFFFAOYSA-N ethenyl propanoate Chemical compound CCC(=O)OC=C UIWXSTHGICQLQT-UHFFFAOYSA-N 0.000 description 1
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- ATJCASULPHYKHT-UHFFFAOYSA-N hexadecane-1,16-diamine Chemical compound NCCCCCCCCCCCCCCCCN ATJCASULPHYKHT-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- UQSRQKOBOWUQTO-UHFFFAOYSA-N icos-2-enedioic acid Chemical compound OC(=O)CCCCCCCCCCCCCCCCC=CC(O)=O UQSRQKOBOWUQTO-UHFFFAOYSA-N 0.000 description 1
- 150000003949 imides Chemical group 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000004255 ion exchange chromatography Methods 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 235000020778 linoleic acid Nutrition 0.000 description 1
- OYHQOLUKZRVURQ-IXWMQOLASA-N linoleic acid Natural products CCCCC\C=C/C\C=C\CCCCCCCC(O)=O OYHQOLUKZRVURQ-IXWMQOLASA-N 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 229940063002 magnesium palmitate Drugs 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- 229940057948 magnesium stearate Drugs 0.000 description 1
- BJZBHTNKDCBDNQ-UHFFFAOYSA-L magnesium;dodecanoate Chemical compound [Mg+2].CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O BJZBHTNKDCBDNQ-UHFFFAOYSA-L 0.000 description 1
- ABSWXCXMXIZDSN-UHFFFAOYSA-L magnesium;hexadecanoate Chemical compound [Mg+2].CCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCC([O-])=O ABSWXCXMXIZDSN-UHFFFAOYSA-L 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 150000002763 monocarboxylic acids Chemical class 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- ZETYUTMSJWMKNQ-UHFFFAOYSA-N n,n',n'-trimethylhexane-1,6-diamine Chemical compound CNCCCCCCN(C)C ZETYUTMSJWMKNQ-UHFFFAOYSA-N 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- ZWLPBLYKEWSWPD-UHFFFAOYSA-N o-toluic acid Chemical compound CC1=CC=CC=C1C(O)=O ZWLPBLYKEWSWPD-UHFFFAOYSA-N 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
- 229960002446 octanoic acid Drugs 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 235000021313 oleic acid Nutrition 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 150000003297 rubidium Chemical class 0.000 description 1
- 239000012748 slip agent Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 159000000008 strontium salts Chemical class 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- KLNPWTHGTVSSEU-UHFFFAOYSA-N undecane-1,11-diamine Chemical compound NCCCCCCCCCCCN KLNPWTHGTVSSEU-UHFFFAOYSA-N 0.000 description 1
- 229940005605 valeric acid Drugs 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- UKRDPEFKFJNXQM-UHFFFAOYSA-N vinylsilane Chemical class [SiH3]C=C UKRDPEFKFJNXQM-UHFFFAOYSA-N 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/88—Adding charges, i.e. additives
- B29B7/90—Fillers or reinforcements, e.g. fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
- B29B7/007—Methods for continuous mixing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
- B29B7/726—Measuring properties of mixture, e.g. temperature or density
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/12—Making granules characterised by structure or composition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
TmB−TmA≦3
ここで、TmBは押出前のポリアミド(b)の融点(℃)であり、そしてTmAは押出後のポリアミド(b)の融点(℃)である。
X=0.266×n−1.03 (1)
Y=0.389×n+2.10 (2)
X ≦ MI ≦ Y (3)
ここで、nは多層ペレット中のポリアミド(b)含有量(wt%)であり、そしてMIは該多層ペレット中のマグネシウム塩(c)の含有量(金属換算値:μmol/g)である。
Y=0.389×n+2.10 (2)
X ≦ MI ≦ Y (3)
ここで、nは多層ペレット中のポリアミド(b)含有量(wt%)であり、そしてMIは該多層ペレット中のマグネシウム塩(c)の含有量(金属換算値:μmol/g)である。
ここで、TmBは押出前のポリアミド(b)の融点(℃)であり、そしてTmAは押出後のポリアミド(b)の融点(℃)である。
試料となるペレット10gを0.01規定の塩酸水溶液50ml中に投入し、95℃で6時間撹拌した。撹拌後の水溶液を、イオンクロマトグラフィーを用いて定量分析し、MgイオンおよびCaイオンの量を定量した。カラムは、(株)横河電機製のICS−C25を使用し、溶離液は5.0mMの酒石酸と1.0mMの2,6−ピリジンジカルボン酸とを含む水溶液を用いた。なお、定量に際してはそれぞれ塩化カリウムおよび塩化マグネシウム水溶液で作成した検量線を用いた。こうして得られたMgイオンおよびCaイオンの量から、ペレット中のマグネシウム塩およびカルシウム塩の量をペレットの質量に対する金属換算量で得た。
試料とするペレット中のポリアミドの融点は、セイコー電子工業(株)製示差走査熱量計(DSC)RDC220/SSC5200H型を用い、JIS K7121に基づいて測定した融解ピーク温度(Tpm)を用いた。但し、温度の校正にはインジウムと鉛を用いた。
試料とするポリアミドとEVOHとからなるペレットの表面YIを、JIS K7103に準じ日本電色社製の色差計にて測定した。
EVOH(a)としてクラレ製「エバール」L171(エチレン単位含有量27モル%、ケン化度99.9%、MFR4g/10分(210℃、荷重2160g))を二軸押出機に供給し、濃度0.4g/Lの酢酸マグネシウム水溶液をEVOHの押出機供給量に対して2質量%となるように液添ポンプで添加した後、押出機の圧縮部で220℃にして加熱溶融して、170kg/hrで多層ダイに鞘層となるように供給した。
得られたフィルムに残留するゲル(径が約200μm程度以上)の個数を目視で数え、その個数をフィルム1.0m2あたりの個数に換算した。換算後の個数により、フィルムの膜面を以下のように評価した。
○:20個未満
△:20個以上〜50個未満
×:50個以上〜100個未満
上記したダイスに付着しているコゲの質量により、ロングラン溶融成形時の熱安定性および押出機内への滞留防止性を以下のように評価した。
○:0.3g以下
△:0.3gより多く、1g未満
×:1g以上
共押出成形によって得られたナイロン6/樹脂組成物(E)/ナイロン6(厚さ15/15/15μm)のフィルムを外層とし、無延伸ポリプロピレンフィルム(トーセロ製「RXC−18」、厚さ60μm)を内層として、これらにドライラミネート用接着剤(二液型、ウレタン系)として武田薬品工業製「タケネートA−385/A−50」)を塗布(固形分4g/m2)し、80℃で溶剤を蒸発させた後にフィルム同士を貼合わせ、40℃で5日間エージングを行って多層フィルムを得た。
△:樹脂組成物(E)層と内外層との剥離が確認されず、樹脂組成物(E)層の透明性が若干損なわれているが実用的に問題のない範囲である。
×:樹脂組成物(E)層と内外層との剥離が確認され、樹脂組成物(E)層の透明性が損なわれている。
多層ペレット中のマグネシウム塩の量を金属換算で6.01μmol/gとしたこと以外は実施例1と同様にして、24時間の連続製膜を実施した。24時間経過後に得られたフィルムの膜面評価および耐熱水性評価を実施例1と同様に行った。評価の結果を、以下の表1に示す。
多層ペレット中のポリアミド(b)の量を25質量%とし、マグネシウム塩(c)の量を金属換算で7.00μmol/gとしたこと以外は実施例1と同様にして、24時間の連続製膜を実施した。このマグネシウム塩の量(MI)は、上記式(1)〜(3)で表されるMIの好ましい範囲内(5.62〜11.8)である。24時間経過後に得られたフィルムの膜面評価および耐熱水性評価を実施例1と同様に行った。評価の結果を、以下の表1に示す。
多層ペレット中のポリアミド(b)の量を25質量%とし、マグネシウム塩(c)の量を金属換算で10.2μmol/gとしたこと以外は実施例1と同様にして、24時間の連続製膜を実施した。24時間経過後に得られたフィルムの膜面評価および耐熱水性評価を実施例1と同様に行った。評価の結果を、以下の表1に示す。
多層ペレット中のマグネシウム塩(c)の量を金属換算で2.67μmol/gとしたこと以外は実施例1と同様にして、24時間の連続製膜を実施した。このマグネシウム塩の量(MI)は、上記式(1)〜(3)で表されるMIの好ましい範囲内(2.96〜7.94)よりもわずかに低い値である。24時間経過後に得られたフィルムの膜面評価および耐熱水性評価を実施例1と同様に行った。評価の結果を、以下の表1に示す。
多層ペレット中のマグネシウム塩(c)の量を金属換算で8.02μmol/gとしたこと以外は実施例1と同様にして、24時間の連続製膜を実施した。このマグネシウム塩の量(MI)は、上記式(1)〜(3)で表されるMIの好ましい範囲内(2.96〜7.94)よりもわずかに高い値である。24時間経過後に得られたフィルムの膜面評価および耐熱水性評価を実施例1と同様に行った。評価の結果を、以下の表1に示す。
多層ペレット中のマグネシウム塩(c)の量を金属換算で2.88μmol/gとしたこと以外は実施例3と同様にして、24時間の連続製膜を実施した。このマグネシウム塩の量(MI)は、上記式(1)〜(3)で表されるMIの好ましい範囲内(5.62〜11.8)よりもわずかに低い値である。24時間経過後に得られたフィルムの膜面評価および耐熱水性評価を実施例1と同様に行った。評価の結果を、以下の表1に示す。
多層ペレット中のマグネシウム塩(c)の量を金属換算で12.26μmol/gとしたこと以外は実施例3と同様にして、24時間の連続製膜を実施した。このマグネシウム塩の量(MI)は、上記式(1)〜(3)で表されるMIの好ましい範囲内(5.62〜11.8)よりもわずかに高い値である。24時間経過後に得られたフィルムの膜面評価および耐熱水性評価を実施例1と同様に行った。評価の結果を、以下の表1に示す。
多層ペレット中のマグネシウム塩の代わりにカルシウム塩を金属換算で4.12μmol/gとなるようにしたこと以外は実施例1と同様にして、24時間の連続製膜を実施した。24時間経過後に得られたフィルムの膜面評価および耐熱水性評価を実施例1と同様に行った。評価の結果を、以下の表1に示す。
EVOH(a)とポリアミド(b)とを240℃の二軸押出機で一括溶融混錬押出ししたこと以外は実施例1と同様にして、24時間の連続製膜を実施した。24時間経過後に得られたフィルムの膜面評価および耐熱水性評価を実施例1と同様に行った。評価の結果を、以下の表1に示す。
EVOH(a)とポリアミド(b)とを240℃の二軸押出機で一括溶融混錬押出ししたこと以外は実施例2と同様にして、24時間の連続製膜を実施した。24時間経過後に得られたフィルムの膜面評価および耐熱水性評価を実施例1と同様に行った。評価の結果を、以下の表1に示す。
2 芯層
3 鞘層
4 ペレット端面
Claims (6)
- 2以上の樹脂層により構成される多層ペレットであって、エチレン−ビニルアルコール共重合体(a)を主成分とする樹脂組成物(A)からなる樹脂層Aと、ポリアミド(b)を主成分とする樹脂組成物(B)からなる樹脂層Bとを含み、該樹脂組成物(A)中にマグネシウム塩を含有し、そして
該マグネシウム塩の含有量が、以下の(1)〜(3)式で表されるMIの範囲内である:
X=0.266×n−1.03 (1)
Y=0.389×n+2.10 (2)
X ≦ MI ≦ Y (3)
ここで、nは多層ペレット中のポリアミド(b)含有量(wt%)であり、そしてMIは該多層ペレット中のマグネシウム塩の含有量(金属換算値:μmol/g)である、多層ペレット。 - 前記マグネシウム塩が、Mg(OCORa)2(ここで、Raは炭素数1〜20のアルキル基である)で表されるマグネシウム塩を含有する、請求項1に記載の多層ペレット。
- 前記多層ペレットが、芯/鞘構造である、請求項1または2に記載の多層ペレット。
- 前記芯が前記樹脂層Bであり、そして前記鞘が前記樹脂層Aである、請求項3に記載の多層ペレット。
- 請求項1から4のいずれかに記載の多層ペレットを溶融成形する工程を含む、樹脂成形品の製造方法。
- 前記溶融成形する工程が押出機内で行われる、請求項5に記載の方法。
Priority Applications (1)
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