CN1578731A - 多层容器及其制造方法 - Google Patents
多层容器及其制造方法 Download PDFInfo
- Publication number
- CN1578731A CN1578731A CNA028217950A CN02821795A CN1578731A CN 1578731 A CN1578731 A CN 1578731A CN A028217950 A CNA028217950 A CN A028217950A CN 02821795 A CN02821795 A CN 02821795A CN 1578731 A CN1578731 A CN 1578731A
- Authority
- CN
- China
- Prior art keywords
- layer
- thermoplastic polyester
- laminated vessel
- polyglycolic acid
- main part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims description 60
- 230000008569 process Effects 0.000 title claims description 18
- 229920000954 Polyglycolide Polymers 0.000 claims abstract description 143
- 239000004633 polyglycolic acid Substances 0.000 claims abstract description 114
- 229920005989 resin Polymers 0.000 claims abstract description 55
- 239000011347 resin Substances 0.000 claims abstract description 55
- 230000004888 barrier function Effects 0.000 claims abstract description 41
- 229920006230 thermoplastic polyester resin Polymers 0.000 claims abstract description 7
- 229920000728 polyester Polymers 0.000 claims description 135
- 229920001169 thermoplastic Polymers 0.000 claims description 111
- 239000004416 thermosoftening plastic Substances 0.000 claims description 111
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 claims description 72
- 238000000071 blow moulding Methods 0.000 claims description 48
- 238000002425 crystallisation Methods 0.000 claims description 42
- 230000008025 crystallization Effects 0.000 claims description 42
- 239000007789 gas Substances 0.000 claims description 31
- 238000002347 injection Methods 0.000 claims description 30
- 239000007924 injection Substances 0.000 claims description 30
- 229910052751 metal Inorganic materials 0.000 claims description 28
- 239000002184 metal Substances 0.000 claims description 28
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 26
- 239000001301 oxygen Substances 0.000 claims description 26
- 229910052760 oxygen Inorganic materials 0.000 claims description 26
- 239000000155 melt Substances 0.000 claims description 15
- 230000003252 repetitive effect Effects 0.000 claims description 13
- 230000002457 bidirectional effect Effects 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 12
- 239000004927 clay Substances 0.000 claims description 11
- 229920001577 copolymer Polymers 0.000 claims description 11
- -1 polybutylene terephthalate Polymers 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 239000002114 nanocomposite Substances 0.000 claims description 10
- 230000000750 progressive effect Effects 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- 230000004927 fusion Effects 0.000 claims description 8
- YIMQCDZDWXUDCA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1 YIMQCDZDWXUDCA-UHFFFAOYSA-N 0.000 claims description 6
- 125000003118 aryl group Chemical group 0.000 claims description 6
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 6
- 229920001225 polyester resin Polymers 0.000 claims description 6
- 239000004645 polyester resin Substances 0.000 claims description 6
- FDSYTWVNUJTPMA-UHFFFAOYSA-N 2-[3,9-bis(carboxymethyl)-3,6,9,15-tetrazabicyclo[9.3.1]pentadeca-1(15),11,13-trien-6-yl]acetic acid Chemical compound C1N(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC2=CC=CC1=N2 FDSYTWVNUJTPMA-UHFFFAOYSA-N 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 2
- 238000011049 filling Methods 0.000 abstract description 11
- 239000010410 layer Substances 0.000 description 185
- 239000011521 glass Substances 0.000 description 17
- 238000010438 heat treatment Methods 0.000 description 17
- 230000009466 transformation Effects 0.000 description 17
- 238000007493 shaping process Methods 0.000 description 14
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 13
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 12
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 10
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 description 10
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 10
- 101000576320 Homo sapiens Max-binding protein MNT Proteins 0.000 description 8
- 229920006121 Polyxylylene adipamide Polymers 0.000 description 8
- 238000001746 injection moulding Methods 0.000 description 8
- IVSZLXZYQVIEFR-UHFFFAOYSA-N m-xylene Chemical group CC1=CC=CC(C)=C1 IVSZLXZYQVIEFR-UHFFFAOYSA-N 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- 229920005992 thermoplastic resin Polymers 0.000 description 7
- 239000004677 Nylon Substances 0.000 description 6
- 239000007767 bonding agent Substances 0.000 description 6
- 239000001569 carbon dioxide Substances 0.000 description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 6
- 229920001778 nylon Polymers 0.000 description 6
- 229920001634 Copolyester Polymers 0.000 description 5
- 239000004952 Polyamide Substances 0.000 description 5
- 238000007664 blowing Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- 229920002647 polyamide Polymers 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- RKDVKSZUMVYZHH-UHFFFAOYSA-N 1,4-dioxane-2,5-dione Chemical compound O=C1COC(=O)CO1 RKDVKSZUMVYZHH-UHFFFAOYSA-N 0.000 description 4
- WHBMMWSBFZVSSR-UHFFFAOYSA-N 3-hydroxybutyric acid Chemical compound CC(O)CC(O)=O WHBMMWSBFZVSSR-UHFFFAOYSA-N 0.000 description 4
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 4
- 239000004567 concrete Substances 0.000 description 4
- 230000008602 contraction Effects 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 229920001519 homopolymer Polymers 0.000 description 4
- 230000007062 hydrolysis Effects 0.000 description 4
- 238000006460 hydrolysis reaction Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 4
- 206010037660 Pyrexia Diseases 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 238000013459 approach Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 150000002009 diols Chemical class 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 239000011256 inorganic filler Substances 0.000 description 3
- 229910003475 inorganic filler Inorganic materials 0.000 description 3
- 239000004310 lactic acid Substances 0.000 description 3
- 235000014655 lactic acid Nutrition 0.000 description 3
- 229910052901 montmorillonite Inorganic materials 0.000 description 3
- 238000006068 polycondensation reaction Methods 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Natural products OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 235000009754 Vitis X bourquina Nutrition 0.000 description 2
- 235000012333 Vitis X labruscana Nutrition 0.000 description 2
- 240000006365 Vitis vinifera Species 0.000 description 2
- 235000014787 Vitis vinifera Nutrition 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 235000013405 beer Nutrition 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 239000007822 coupling agent Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 239000012760 heat stabilizer Substances 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 235000015094 jam Nutrition 0.000 description 2
- 235000015110 jellies Nutrition 0.000 description 2
- 239000008274 jelly Substances 0.000 description 2
- 150000002596 lactones Chemical class 0.000 description 2
- 239000004611 light stabiliser Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 235000002639 sodium chloride Nutrition 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 125000001340 2-chloroethyl group Chemical group [H]C([H])(Cl)C([H])([H])* 0.000 description 1
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 1
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 1
- SJZRECIVHVDYJC-UHFFFAOYSA-N 4-hydroxybutyric acid Chemical compound OCCCC(O)=O SJZRECIVHVDYJC-UHFFFAOYSA-N 0.000 description 1
- 229940006015 4-hydroxybutyric acid Drugs 0.000 description 1
- IWHLYPDWHHPVAA-UHFFFAOYSA-N 6-hydroxyhexanoic acid Chemical compound OCCCCCC(O)=O IWHLYPDWHHPVAA-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 240000008415 Lactuca sativa Species 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229920003232 aliphatic polyester Polymers 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 229920006127 amorphous resin Polymers 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- GSCLMSFRWBPUSK-UHFFFAOYSA-N beta-Butyrolactone Chemical compound CC1CC(=O)O1 GSCLMSFRWBPUSK-UHFFFAOYSA-N 0.000 description 1
- VEZXCJBBBCKRPI-UHFFFAOYSA-N beta-propiolactone Chemical compound O=C1CCO1 VEZXCJBBBCKRPI-UHFFFAOYSA-N 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 229920002988 biodegradable polymer Polymers 0.000 description 1
- 239000004621 biodegradable polymer Substances 0.000 description 1
- 238000012662 bulk polymerization Methods 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 235000011148 calcium chloride Nutrition 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000011951 cationic catalyst Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 229920006038 crystalline resin Polymers 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 238000010101 extrusion blow moulding Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 235000015203 fruit juice Nutrition 0.000 description 1
- JBFHTYHTHYHCDJ-UHFFFAOYSA-N gamma-caprolactone Chemical compound CCC1CCC(=O)O1 JBFHTYHTHYHCDJ-UHFFFAOYSA-N 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229920000554 ionomer Polymers 0.000 description 1
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 1
- JJTUDXZGHPGLLC-UHFFFAOYSA-N lactide Chemical compound CC1OC(=O)C(C)OC1=O JJTUDXZGHPGLLC-UHFFFAOYSA-N 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 235000021056 liquid food Nutrition 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 235000011147 magnesium chloride Nutrition 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000010128 melt processing Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002739 metals Chemical group 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 238000009928 pasteurization Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 238000012643 polycondensation polymerization Methods 0.000 description 1
- 150000004291 polyenes Chemical class 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229960000380 propiolactone Drugs 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 235000012045 salad Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 235000011008 sodium phosphates Nutrition 0.000 description 1
- 235000014347 soups Nutrition 0.000 description 1
- 235000013555 soy sauce Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 229960005137 succinic acid Drugs 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- YFHICDDUDORKJB-UHFFFAOYSA-N trimethylene carbonate Chemical compound O=C1OCCCO1 YFHICDDUDORKJB-UHFFFAOYSA-N 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/0005—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor characterised by the material
-
- 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
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1642—Making multilayered or multicoloured articles having a "sandwich" structure
- B29C45/1646—Injecting parison-like articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons
-
- 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
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- 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
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
- B65D1/0215—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features multilayered
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/78—Measuring, controlling or regulating
- B29C2049/7879—Stretching, e.g. stretch rod
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/072—Preforms or parisons characterised by their configuration having variable wall thickness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/072—Preforms or parisons characterised by their configuration having variable wall thickness
- B29C2949/0724—Preforms or parisons characterised by their configuration having variable wall thickness at body portion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
- B29C2949/0733—Preforms or parisons characterised by their configuration having variable diameter at body portion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
- B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
- B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
- B29C2949/0772—Closure retaining means
- B29C2949/0773—Threads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/0861—Other specified values, e.g. values or ranges
- B29C2949/0862—Crystallinity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/0861—Other specified values, e.g. values or ranges
- B29C2949/0862—Crystallinity
- B29C2949/0865—Crystallinity at the body portion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
- B29C2949/22—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at neck portion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
- B29C2949/24—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at flange portion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3016—Preforms or parisons made of several components at body portion
- B29C2949/3018—Preforms or parisons made of several components at body portion partially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/302—Preforms or parisons made of several components at bottom portion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3024—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique
- B29C2949/3026—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components
- B29C2949/3028—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components having three or more components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3032—Preforms or parisons made of several components having components being injected
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3032—Preforms or parisons made of several components having components being injected
- B29C2949/3034—Preforms or parisons made of several components having components being injected having two or more components being injected
- B29C2949/3036—Preforms or parisons made of several components having components being injected having two or more components being injected having three or more components being injected
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/08—Biaxial stretching during blow-moulding
- B29C49/087—Means for providing controlled or limited stretch ratio
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/64—Heating or cooling preforms, parisons or blown articles
- B29C49/6604—Thermal conditioning of the blown article
- B29C49/6605—Heating the article, e.g. for hot fill
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2031/00—Use of polyvinylesters or derivatives thereof as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
- B29K2067/04—Polyesters derived from hydroxycarboxylic acids
- B29K2067/043—PGA, i.e. polyglycolic acid or polyglycolide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
- B29K2067/04—Polyesters derived from hydroxycarboxylic acids
- B29K2067/046—PLA, i.e. polylactic acid or polylactide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/0026—Transparent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/004—Semi-crystalline
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0065—Permeability to gases
- B29K2995/0067—Permeability to gases non-permeable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/514—Oriented
- B32B2307/518—Oriented bi-axially
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
-
- 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
- B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
-
- 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
- B32B2439/00—Containers; Receptacles
-
- 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
- B32B2439/00—Containers; Receptacles
- B32B2439/40—Closed containers
- B32B2439/60—Bottles
-
- 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
- B65D2565/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D2565/38—Packaging materials of special type or form
- B65D2565/381—Details of packaging materials of special type or form
- B65D2565/387—Materials used as gas barriers
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
本发明为含有聚乙醇酸层和热塑性聚酯树脂层,并且气体阻挡性、耐热性、成形加工性、透明性、耐久性优良的多层容器及其制造方法。作为气体阻挡性树脂使用聚乙醇酸。在主体部和底部,热塑性聚酯树脂层形成内外层,并且由至少1层的聚乙醇酸层构成的中间层埋入到热塑性聚酯树脂层之中。开口端部只由热塑性聚酯树脂层形成。主体部被被双向定向。多层容器具有能耐受在93℃、20秒钟的条件下的热填充的耐热性。
Description
技术领域
本发明涉及至少含有聚乙醇酸层和热塑性聚酯树脂层的多层容器,更详细地讲,涉及具有在热塑性聚酯树脂层之中埋入了由至少1层的聚乙醇酸层构成的中间层的结构,气体阻挡性、耐热性、成形加工性、透明性、耐久性优良的多层容器。又,本发明涉及采用共注射拉伸吹塑成形法制造该多层容器的方法。本发明的多层容器,有效利用其特性,例如作为加入二氧化碳的果汁饮料、乳酸饮料、啤酒、葡萄酒、酱油、调味汁、果酱、果冻、汤、色拉油等饮料·食品用容器是合适的。
背景技术
近年,作为各种饮料和食品用容器开发了热塑性树脂制的吹塑成形容器。现在,作为这样的吹塑成形容器,广泛使用由聚对苯二甲酸乙二醇酯(PET)构成的单层的PET瓶。
可是,PET瓶作为容易受到氧的影响的内容物的容器是不充分的,需要确保气体阻挡性。在碳酸饮料的场合,也要求二氧化碳阻挡性。又,将果酱、果冻、果实汁等液体状食品填充到吹塑成形容器的场合,一般进行热填充。即使加有二氧化碳的果汁饮料和乳酸饮料等,填充到吹塑成形容器的场合,也进行热水喷淋的加热杀菌。为此,对吹塑成形容器要求耐热和压力的特性。由以上情况可知,要求吹塑成形容器具有高度的气体阻挡性和耐热填充的耐热性。
为了改善吹塑成形容器的气体阻挡性,提出了几个采用吹塑成形法成形在中间层配置了气体阻挡性树脂层的多层容器的方法。
特开昭56-64839号公报提出了这样的方法:形成外层和内层由PET层构成、中间层由含有间二甲苯基的聚酰胺树脂构成的多层结构的容器前成形体,接着将该容器前成形体进行双向拉伸吹塑成形,制造多层容器的方法。
特开昭57-128516号公报公开了一种吹塑成形容器,该容器是具有由至少2种热塑性树脂构成的多层结构的吹塑成形容器,至少主体薄厚度部具有3层以上的多层结构,至少口部开口端部具有单一结构,并且至少主体部薄厚度部具有双向定向的多层结构。该公报记载了PET作为构成内外层和口部开口端部的热塑性树脂,EVOH或含有间二甲苯基的聚酰胺树脂作为中间层。
特开昭62-199425号公报公开了一种双向拉伸容器的制造方法:在将含有由PET构成的内外层和由气体阻挡性树脂构成的至少1个中间层的多层预成形品,在维持在热固定温度的金属模内进行双向拉伸吹塑成形的同时,进行吹塑成形体的热处理,然后,冷却吹塑成形体并从金属模取出。该公报中显示了使用EVOH或含有间二甲苯基的聚酰胺树脂作为气体阻挡性树脂的实施例。
例如,具有PET/EVOH/PET、PET/MXD6/PET等层构成的采用共注射拉伸吹塑成形法得到的多层容器,例如作为啤酒和葡萄酒用容器从1990年就已经在市场上出售了。
可是,EVOH由于熔点和热分解温度接近、熔体粘度高等,因此与PET组合进行共注射拉伸吹塑成形相当困难。即,由于2种树脂的合适成形温度大大不同,因此设定共注射拉伸吹塑成形的条件困难。例如,在高温注射时,EVOH交联(凝胶化),熔体粘度变高,其结果流动状态变得不稳定。因此,成为中间层的EVOH层,厚度的偏差大,不可避免打入高度(从瓶底部到EVOH层的端头部的高度)的不良和偏差,气体阻挡性不足,容易外观不良。
另一方面,作为含有间二甲苯基的聚酰胺树脂,典型的MXD6尼龙由于熔点接近于PET的熔点,因此与PET的组合显示极为良好的共注射成形性。又,两树脂由于玻璃转变温度近似,因此设定拉伸吹塑成形时的合适成形温度容易。可是,MXD6尼龙与EVOH比,由于气体阻挡性并不那么良好,因此将MXD6尼龙作为中间层的吹塑成形容器不适于长期要求氧阻挡性的用途和要求高度的气体阻挡性的用途。
特开昭61-47337号公报公开了下述方法:将缩聚苯二甲酸二甲酯和乙二醇而得到的树脂和开环聚合乙交酯而得到的树脂按各种的重量比混合,再制造熔融聚合混合物而得到的高气体阻挡性聚合物(HBR),接着使用这些HBR和PET,采用共注射拉伸吹塑成形法,制造由PET/HBR/PET组成的层构成的多层瓶的方法。可是,该公报显示的HBR的氧气阻挡性即使是最好的,在25℃测定的氧气透过系数也为2.3×10-13cm3·cm/cm2·sec·cmHg左右,并不充分地高。又,该公报关于耐热填充的耐热性吹塑成形容器没有具体的公开。
特开平10-138371号公报公开了一种气体阻挡性多层中空容器,其中,具有在由聚乙醇酸形成的层的至少一个面层合了热塑性树脂层的多层的器壁构成。该公报中记载了采用多层挤压吹塑成形法和多层吹塑成形法等制造多层中空容器的方法。该公报具体公开了下述实施例:采用共注射拉伸吹塑成形法,制造了具有内外层为PET层、由聚乙醇酸层构成的中间层通过粘接剂层而配置的结构的多层中空容器。可是,该公报中记载的由共注射拉伸吹塑成形法得到的多层中空容器,在共注射拉伸吹塑成形条件、气体阻挡性、耐久性、耐热性、成形加工性等方面需要进一步的改良。更具体讲,将在环境条件下容易分解的聚乙醇酸层可靠地埋入到热塑性树脂层中以提高耐久性、提高气体阻挡性、赋予耐热填充的耐热性等作为课题而被列举出。
发明内容
本发明目的在于,提供气体阻挡性、耐热性、成形加工性、透明性、耐久性优良的多层容器及其制造方法。
本发明人为了达到上述目的而锐意研究的结果,发现一种至少含有聚乙醇酸层和热塑性聚酯树脂层的多层容器,以气体阻挡性优良的聚乙醇酸为中间层,并完全地埋入到热塑性聚酯树脂层之中,在由水解等保护聚乙醇酸层的同时,通过选择热塑性聚酯树脂的种类和共注射拉伸吹塑成形的成形条件,得到具有高度的气体阻挡性和耐热填充的耐热性、透明性也优良的多层容器。
通过组合使用聚乙醇酸和热塑性聚酯树脂,发现适当设定共注射成形时的各树脂的熔体粘度的关系是可能的,另外,拉伸吹塑成形时的温度条件和拉伸倍率等也设定合适的范围是可能的。再有,使用PET作为热塑性聚酯树脂的场合等,在拉伸吹塑成形时通过热固定容器主体部的双向定向,能够显著提高耐热性。本发明基于这些知识而完成。
这样,根据本发明,提供一种多层容器,其特征是,是至少含有聚乙醇酸层和热塑性聚酯树脂层的多层容器,
(a)聚乙醇酸是按60重量%以上的比例含有用式(1)
表示的重复单元,并且依据JIS K-7126在温度23℃和相对湿度80%的条件下测定的氧气透过系数为5.0×10-14(cm3·cm/cm2·sec·cmHg)以下的气体阻挡性树脂,
(b)在多层容器的主体部和底部,热塑性聚酯树脂层形成内外层,
(c)在多层容器的主体部和底部,由至少1层的聚乙醇酸层构成的中间层埋入到热塑性聚酯树脂层之中,
(d)多层容器的开口端部只由热塑性聚酯树脂层形成,
(e)多层容器的主体部被双向定向,并且
(f)多层容器具有能耐在93℃、30秒钟的条件下的热填充的耐热性。
又,根据本发明,提供一种制造多层容器的方法,其特征是,该方法是至少共注射聚乙醇酸和热塑性聚酯树脂,形成有底的多层预成形坯,接着双向拉伸吹塑成形该多层预成形坯,制造多层容器的方法,
(I)作为聚乙醇酸,使用按60重量%以上的比例含有用式(1)
表示的重复单元,并且依据JIS K-7126在温度23℃和相对湿度80%的条件下测定的氧气透过系数为5.0×10-14(cm3·cm/cm2·sec·cmHg)以下的气体阻挡性树脂,
(II)通过使用具有多台注射缸的成形机,采用逐次成形法或同时成形法以一次合模动作通过1个浇口向单一的预成形坯金属模模腔内共注射熔融的各树脂,来制作(A)内外层为热塑性聚酯树脂层、(B)由至少1层的聚乙醇酸层构成的中间层埋入到热塑性聚酯树脂层之中、(C)开口端部只由热塑性聚酯树脂层形成、(D)其他部分具有3层以上的多层构成的有底的多层预成形坯,
(III)根据需要加热处理多层预成形坯的开口端部,使热塑性聚酯树脂层晶化,然后,
(IV)将多层预成形坯调整成可拉伸的温度后,插入到吹塑成形用金属模模腔内,吹入加压流体,进行拉伸吹塑成形。
附图的简单说明
图1-4是为说明共注射成形法的典型例的截面图。
图5是本发明的多层容器的一例的截面图。
发明的具体实施方式
1.
聚乙醇酸
在本发明中使用的聚乙醇酸,是含有用下式(1)
表示的重复单元的均聚物或共聚物。聚乙醇酸中的用式(1)表示的重复单元的含有比例为60重量%以上,优选为70重量%以上,更优选为80重量%以上,其上限为100重量%。当用式(1)表示的重复单元的含有比例过少时,气体阻挡性和耐热性降低。
可使聚乙醇酸含有作为用式(1)表示的重复单元以外的重复单元的例如用下式(2)-(6)表示的至少1个重复单元。
(式中,n=1~10、m=0~10)
(式中,j=1~10)
(式中,R1、R2分别独立地为氢原子或碳数1-10的烷基。k=2-10)
通过以1重量%以上的比例导入这些用式(2)-(6)表示的其他重复单元,能够降低聚乙醇酸的均聚物的熔点。如果降低聚乙醇酸的熔点,则能够降低加工温度,能够减轻熔融加工时的热分解。另外,通过共聚合,还能够控制聚乙醇酸的晶化速度,改良加工性。当共聚物中的其他重复单元的含有比例过大时,往往聚乙醇酸本来具有的结晶性受到损害,给气体阻挡性等造成坏影响。
聚乙醇酸可通过乙醇酸的脱水缩聚、乙醇酸烷基酯的脱醇缩聚、乙交酯的开环聚合等来合成。这些之中,采用在少量的催化剂(例如有机羧酸锡、卤化锡、卤化锑等阳离子催化剂)存在下,将乙交酯加热到约120℃-约250℃的温度,进行开环聚合的方法合成聚乙醇酸的方法为优选。开环聚合优选采用本体聚合法或溶液聚合法。
为了合成聚乙醇酸的共聚物,在上述各合成方法中,将作为共聚用单体的例如草酸亚乙酯、交酯、内酯类(例如β-丙内酯、β-丁内酯、三甲基乙内酯、γ-丁内酯、δ-戊内酯、β-甲基-δ-戊内酯、ε-己内酯等)、碳酸三亚甲基酯、以及1,3-羟基丁酸等环状单体;乳酸、3-羟基丙酸、3-羟基丁酸、4-羟基丁酸、6-羟基己酸等羟基羧酸或其烷基酯;乙二醇、1,4-丁二醇等脂肪族二醇、与琥珀酸、己二酸等脂肪族二羧酸或其烷基酯的实质上等摩尔的混合物;或它们的2种以上,与乙交酯、乙醇酸、或乙醇酸烷基酯适当组合,进行共聚即可。
在本发明中使用的聚乙醇酸,需要依据JIS K-7126在温度23℃和相对湿度(RH)80%的条件下测定的氧气透过系数为5.0×10-14(cm3·cm/cm2·sec·cmHg)以下。当聚乙醇酸的氧气透过系数过大时,不能得到氧气阻挡性优良的多层容器。在本发明使用的聚乙醇酸的氧气透过系数在大多情况下为1.0×10-14-5.0×10- 14cm3·cm/cm2·sec·cmHg的范围。
在本发明使用的聚乙醇酸的熔体粘度,在温度240℃和剪切速度100秒-1的条件下测定时,优选为100-1500Pa·s,更优选为150-800Pa·s。
聚乙醇酸若在超过255℃的温度下熔融,则容易引起分解和与此相伴的分子量降低、发泡。为此,聚乙醇酸的熔融加工温度希望设定成约240℃。当在240℃下的聚乙醇酸的熔体粘度过低、或过高时,选择热塑性聚酯树脂和共注射时的适当的成形条件变得困难。
在本发明使用的聚乙醇酸的熔点(Tm)优选为200℃以上,更优选为210℃以上。聚乙醇酸的熔点为约220℃,玻璃转变温度为约38℃,晶化温度为约91℃。但是这些热性质因聚乙醇酸的分子量和共聚成分等而变动。
在本发明中,可单独使用聚乙醇酸的纯树脂,但在不损害本发明目的的范围内,可使用在聚乙醇酸中配合了无机填料、其他热塑性树脂、增塑剂等的树脂组合物。另外,根据需要可使聚乙醇酸含有热稳定剂、光稳定剂、防湿剂、防水剂、疏水剂、润滑剂、脱模剂、偶合剂、颜料、染料等各种添加剂。
2.
热塑性聚酯树脂
作为在本发明中使用的热塑性聚酯树脂,可列举出聚乙醇酸以外的热塑性聚酯树脂,其中,优选芳香族二羧酸或它们的烷基酯和以二醇为主成分的热塑性芳香族聚酯树脂。
作为热塑性芳香族聚酯树脂,例如优选聚对苯二甲酸乙二醇酯(PET)、以1,4-环己烷二甲醇为共聚成分的非晶性聚对苯二甲酸乙二醇酯共聚物(PETG)、聚萘二甲酸乙二醇酯(PEN)、聚对苯二甲酸丁二醇酯(PBT)、聚-1,4-亚环己基二亚甲基对苯二甲酸酯·间苯二甲酸酯共聚物(PCTA)、以及它们的2种以上的混合物。
PET是熔点约为255℃、玻璃转变温度为约76℃、晶化温度为约170℃的热塑性聚酯树脂。PETG是以1,4-环己烷二甲醇为共聚成分的非晶性聚对苯二甲酸乙二醇酯共聚物,更具体讲,是将作为构成PET的二醇成分的乙二醇的一部分置换成1,4-环己烷二甲醇的共聚聚酯。二醇成分中的1,4-环己烷二甲醇的比例为30-35摩尔%左右。作为PETG优选使用由美国イ-ストマン化学公司和スカイグリ-ン公司等制造销售的PETG。
PEN是熔点约为256℃、玻璃转变温度为约120℃、晶化温度为约220℃的热塑性聚酯树脂。PCTA是通过1,4-环己烷二甲醇、对苯二甲酸和间苯二甲酸的缩聚合而得到的热塑性饱和共聚聚酯。作为PCTA,公知地使用美国イ-ストマン化学公司的商品コダ-ル·サ-メツクス6761(KODAR THERM X6761)等。
此外,可使用用间苯二甲酸萘二羧酸取代了在PET中的酸成分的一部分的共聚聚酯、将二醇成分的一部分取代成二乙二醇等特殊二醇的共聚聚酯等。
作为热塑性聚酯树脂,还可使用聚乙醇酸以外的脂肪族聚酯、例如聚乳酸(熔点=约178℃、玻璃转变温度=约53℃、晶化温度=约103℃)等。但是,在要求耐久性的用途上,使用热塑性芳香族聚酯树脂为好。
热塑性聚酯树脂的特征粘度(IV值;Inherent Viscosity)通常为0.5-1.5gl/g、优选为0.6-1.0dl/g、更优选为0.7-0.85dl/g。热塑性聚酯树脂的IV值,是以0.5重量%的浓度将树脂溶解于邻氯苯酚或苯酚/氯乙烷(60/40重量%)的混合溶剂中,依据ASTM D4603-96标准使用佳能ベロ-デ型1B粘度计,在30℃测定的值(dl/g)。
热塑性聚酯树脂的熔体粘度[η]在温度280℃和剪切速度100秒-1下测定时,优选为100-300Pa·s,更优选为120-250Pa·s。
根据需要可使热塑性聚酯树脂含有无机填料、其他热塑性树脂、热稳定剂、光稳定剂、防湿剂、防水剂、疏水剂、润滑剂、脱模剂、偶合剂、颜料、染料等各种添加剂。
3.
纳米复合材料用粘土
在本发明中,根据要求,可向热塑性聚酯树脂添加无机填料,其中,添加纳米复合材料用粘土(粘度矿物)为好。
作为纳米复合材料用粘土,优选由膨润土精制的天然蒙脱石、主要优选蒙脱石。其中,特别优选形状比优选为200以上、更优选为300以上、并且二氧化硅等杂质的含量少的蒙脱石。
使热塑性聚酯树脂以0.5-5重量%的比例分散了纳米复合材料用粘土的热塑性聚酯树脂组合物,为混合粘土的材料,不损害热塑性聚酯树脂层的透明性并能提高耐热性。例如,通过使用分散了纳米复合材料用粘土的PET,能够使热变形温度提高20-30℃左右。
纳米复合材料用粘土,通过采用公知的インタ-カレ-ション法、与热塑性聚酯树脂的熔融混合法等,使之分散于热塑性聚酯树脂中,能够制成混合材料。
4.
粘接剂
本发明的多层容器由于具有中间层聚乙醇酸层完全埋入到热塑性聚酯树脂层之中的结构,因此未必需要在各树脂层间设置粘接剂层,但出于提高层间剥离强度等的目的,可使聚乙醇酸层与热塑性聚酯树脂层之间存在粘接剂层。
作为粘接剂,优选是对聚乙醇酸和热塑性聚酯树脂两者有亲合性,可与这些树脂一起挤压或注射的粘接性树脂。作为粘接剂的具体例,可列举出马来酸酐改性聚烯烃树脂(三菱树脂公司制的モデイツクS525、三井化学公司制的アドマ-QF551和NF550等)、含有环氧丙基的乙烯共聚物(日本石油化学公司制的レクスパ-ルRA3150、住友化学公司制的ボンドフアスト2C等)、热塑性聚氨酯(クラレ公司制的クラミロン1195L等)、共聚聚酯系粘接剂、聚酰胺·离聚物(三井デュポン制的AM7926等)、聚丙烯酰胺树脂(ロ-ム&ハ-ス制的XHTA)等。考虑共注射时的熔体粘度和与各树脂的亲合性等,希望从这些粘接剂之中选择最佳的。
粘接剂层的厚度通常为1-1000μm,优选为3-500μm,更优选为5-100μm。
5.
干燥剂
在聚乙醇酸层与热塑性聚酯树脂层之间配置粘接剂层的场合,可使粘接剂层之中含有干燥剂。通过使用干燥剂,能够防止来自多层容器内外的水分的侵入所致的聚乙醇酸的水解。
作为干燥剂,例如可列举出磷酸氢钠、氯化钙、氯化钠、氯化铵、碳酸钾、硝酸钠、氯化镁、硫酸镁等无机化合物;蔗糖等有机化合物;等等,但不限定于这些。干燥剂的含量相对于粘接剂为1-40重量%左右。当干燥剂的含量过多时,粘接性受损,当过少时,效果过小。另外,代替干燥剂,也可使用交联聚丙烯酸(盐)系和淀粉/丙烯酸盐接枝共聚交联物等高吸水性树脂。
6.
多层容器
本发明的多层容器,是含有氧气阻挡性优良的聚乙醇酸层和热塑性聚酯树脂层的多层容器。本发明的多层容器,在多层容器的主体部和底部,热塑性聚酯树脂层形成内外层,在多层容器的主体部和底部,由至少1层的聚乙醇酸层构成的中间层埋入到热塑性聚酯树脂层之中,多层容器的开口端部只由热塑性聚酯树脂层形成,多层容器的主体部被双向定向,并且多层容器具有能耐在93℃、20秒钟的条件下的热填充的耐热性。
图5表示本发明的多层容器的一例的截面图。多层容器51具有开口端部52、主体部、和底部。在多层容器的主体部和底部,外层53和内层55利用热塑性聚酯树脂层形成,中间层54利用聚乙醇酸层形成。
多层容器的开口端部52(容器的口部)由热塑性聚酯树脂层单层形成。因此,聚乙醇酸层54完全地埋入到热塑性聚酯树脂层之中。聚乙醇酸一般在氧气阻挡性和二氧化碳阻挡性上优良。而且,在本发明中,使用氧气阻挡性特别良好的聚乙醇酸。可是,聚乙醇酸为生物降解性聚合物,容易受到水解。为此,只将聚乙醇酸层与其他树脂层组合制成多层容器时,容易从开口端部劣化。通过将聚乙醇酸层埋入到热塑性聚酯树脂层之中,能够有效地防止水解等导致的聚乙醇酸层的劣化。
将从多层容器的底部到聚乙醇酸层54的尖端部的高度称为“打入高度”。该打入高度为接近于开口端部的高度,并且,希望在成形时恒定。当在成形时有打入高度的变动时,形成不仅多层容器的开口端部,连肩部也没有聚乙醇酸层的部分的多层容器,气体阻挡性降低。
聚乙醇酸层不仅图5所示的1个层,也可定为2层以上。作为典型的多层构成,有如下的构成,但不限定于这些。用“PGA”表示聚乙醇酸层,用“聚酯”表示热塑性聚酯树脂,用“粘接”表示粘接剂层。
(1)聚酯/PGA/聚酯
(2)聚酯/粘接/PGA/粘接/聚酯
(3)聚酯/PGA/聚酯/PGA/聚酯
(4)聚酯/粘接/PGA/粘接/聚酯/粘接/PGA/粘接/聚酯
(5)聚酯/PGA/聚酯/PGA/聚酯/PGA/聚酯
(6)聚酯/粘接/PGA/粘接/聚酯/粘接/PGA/粘接/聚酯/粘接/PGA/粘接/聚酯
各热塑性聚酯树脂层,可以用相同种类的热塑性聚酯树脂形成,或者也可以用不同种类的热塑性聚酯树脂形成。例如,可用纯树脂形成内层热塑性聚酯树脂55,用配合了紫外线吸收剂和着色剂等添加剂的热塑性聚酯树脂(树脂组合物)形成外层热塑性聚酯树脂53。此外,可将由成形屑等构成的再磨(リグライン ド;regrind)层附加作为中间层。热塑性聚酯树脂层按希望可含有纳米复合材料用粘土。根据要求,可使粘接剂层含有干燥剂或高吸水性树脂。
聚乙醇酸层大多是1层或2层。通过使聚乙醇酸层为2层以上,即使是与1层的情况实质上相同的总厚度,也能提高多层容器的气体阻挡性。
多层容器的主体部(侧壁)的总层厚可根据使用目的适宜设定,通常为100μm-5mm,优选为150μm-3mm,更优选为300μm-2mm左右。
用于耐热或耐热·耐压用途的多层容器,增大主体部的厚度。例如,1.5L的耐热瓶和耐热·耐压瓶,将瓶的单位面积重量(日本织物单位面积重量)定为50-60g左右。相对于此,无菌(防腐)填充用瓶由于常温常压填充,因此主体部的厚度可以薄,1.5L的瓶,将单位面积重量定为40-50g左右。
热塑性聚酯树脂层的合计厚度通常为50μm-4.5mm,优选为100μm-2.5mm,更优选为200μm-1mm左右。中间层聚乙醇酸层的合计厚度通常为5μm以上,优选为5-200μm,更优选为10-100μm。聚乙醇酸层可以是1层,但也能制成分割成2层以上的分离(split)阻挡层。聚乙醇酸层是1层的场合,由于填充的内容物大多是水物,因此在多层构成之中,配置于距中心部稍稍靠外的一侧为好。粘接剂层的厚度按照前述,通常为1-1000μm,优选为3-500μm,更优选为5-100μm。
多层容器的开口端部52成形成用盖做成塞子的形状为好。该开口端部52可加热处理使热塑性聚酯树脂晶化。开口端部的晶化希望在拉伸吹塑成形前的预成形坯阶段进行。通过共注射,成形有底的多层预成形坯,其后,将该多层预成形坯的开口端部例如照射近紫外线,加热到200℃左右而晶化。
大多数场合,通过该晶化生成球晶,开口端部变成白色不透明。开口端部的热塑性聚酯树脂的晶化度通常为25vol.%以上,优选为30vol.%以上。特别是作为热塑性聚酯树脂使用PET的场合,从提高多层容器的气体阻挡性和耐热性的观点考虑,加热处理开口端部使之晶化为好。
多层容器的主体部在双向定向的状态下热处理而热固定为好。特别是作为热塑性聚酯树脂使用PET的场合等,为了提高耐热性,希望在拉伸吹塑成形时热处理,热固定主体部的双向定向状态。通过这样的热固定,赋予了耐80℃以上的热填充的耐热性。
但是,作为热塑性聚酯树脂使用PEN那样的耐热性优良的树脂,形成为PEN/PGA/PEN、PEN/PGA/PEN/PGA/PEN等层构成的多层容器,即使不作多层预成形坯开口端部的采用加热处理的晶化和容器主体部或整体的采用热处理的热固定,也能热填充,可成为紫外线阻挡性、气体阻挡性也优良的耐热瓶。
本发明的多层容器的主体部,具有浊度值为4.0%以下的透明性为好。
7.
多层容器的制造方法
在本发明中,至少共注射聚乙醇酸和热塑性聚酯树脂,形成有底的多层预成形坯,接着双向拉伸吹塑成形该多层预成形坯,制造多层容器。作为聚乙醇酸,使用按60重量%以上的比例含有用上述式(1)表示的重复单元,并且依据JIS K-7126在温度23℃和相对湿度80%的条件下测定的氧气透过系数为5.0×10-14(cm3·cm/cm2·sec·cmHg)以下的气体阻挡性树脂。
在多层预成形坯的制造工序中,使用具有多台注射缸的成形机,采用逐次成形法或同时成形法以一次合模动作通过1个浇口向单一的预成形坯金属模模腔内共注射熔融的各树脂。采用该方法,来制作(A)内外层为热塑性聚酯树脂层、(B)由至少1层的聚乙醇酸层构成的中间层埋入到热塑性聚酯树脂层之中、(C)开口端部只由热塑性聚酯树脂层形成、(D)其他部分具有3层以上的多层构成的有底的多层预成形坯。
在逐次成形法中,通过错开熔融的各树脂从注射缸注射的定时,连续且交替地注射,来制作使先注射的热塑性聚酯树脂形成为内外层、使后注射的聚乙醇酸形成为中间层的多层预成形坯。
在同时成形法中,通过错开熔融的各树脂从注射缸注射的定时,并首先注射热塑性聚酯树脂,中途注射聚乙醇酸,同时且连续地注射两树脂,来制作使热塑性聚酯树脂形成为内外层、使聚乙醇酸形成为中间层的多层预成形坯。
图1-图4示出逐次成形法的具体例。最初,将热塑性聚酯树脂5从注射缸3部分地注射到金属模1的模腔2内。暂且停止热塑性聚酯树脂5的注射,将聚乙醇酸6从另一注射缸4注射到模腔2内的熔融状态的热塑性聚酯树脂7之中。聚乙醇酸在熔融状态的热塑性聚酯树脂7中形成聚乙醇酸层8。最后,再从注射缸3注射热塑性聚酯树脂5,在完全添满金属模模腔的同时,得到底部由热塑性聚酯树脂密封的多层预成形坯。
通过采用该逐次成形法,按热塑性聚酯树脂、聚乙醇酸、热塑性聚酯树脂的顺序进行逐次注射,可得到具有聚酯/PGA/聚酯/PGA/聚酯的层构成的2种5层的多层预成形坯。当将最后的热塑性聚酯树脂的注射只限于浇口部时,得到具有聚酯/PGA/聚酯的层构成的2种3层的多层预成形坯。
对于同时成形法,一般得到2种3层的多层预成形坯。通过增加注射缸的数目、或改变成形条件等,各种各样地适用这些逐次成形法或同时成形法,能够制作具有多种类的层构成的多层预成形坯。
在同时成形法的多层预成形坯的成形工序中,希望控制共注射时的各树脂的熔体粘度,以使在各个熔融温度和剪切速度100秒-1下测定的热塑性聚酯树脂的熔体粘度(ηT)相对于聚乙醇酸的熔体粘度(ηP)的比(ηT/ηP)为1以下。
在采用同时成形法共注射成形而成形多层预成形坯的工序中,例如,2种类的树脂在金属模模腔内层状地流动,但通过控制处于熔融状态的两树脂的熔体粘度,使得热塑性聚酯树脂成为内外层,聚乙醇酸成为中间层(芯层)。因此,希望热塑性聚酯树脂的熔体粘度控制成聚乙醇酸的熔体粘度以下。熔体粘度比(ηT/ηP)优选为0.3以上、不到1。为了调整成理想的熔体粘度比,控制各树脂的种类和熔融温度(注射温度)。
在热塑性聚酯树脂为PET的场合,共注射成形时的树脂温度通常为265-290℃。另一方面,聚乙醇酸的场合,共注射成形时的树脂温度通常为225-260℃。在这些各树脂温度的范围内,各树脂的熔体粘度控制成达到上述关系为好。
其次,加热处理多层预成形坯的开口端部,使热塑性聚酯树脂晶化为好。有底的多层预成形坯的开口端部,具有热塑性聚酯树脂单层结构,大多耐热性和气体阻挡性不充分。因此,希望在拉伸吹塑成形多层预成形坯之前,例如照射红外线,将开口端部加热到200℃左右,使之晶化。晶化后的开口端部的热塑性聚酯树脂的晶化度通常为25vol.%以上,优选为30vol.%以上。
注射成形聚碳酸酯树脂和聚烯丙酸酯等具有高玻璃转变温度的树脂,制作口部件(piece),将该口部件嵌入成形为多层预成形坯的开口端部,提高多层容器的口部的耐热性的方法也能够采用。
多层预成形坯被拉伸吹塑成形。在拉伸吹塑成形工序中,将多层预成形坯调整成可拉伸的温度后,插入到吹塑成形用金属模模腔内,吹入空气等加压流体,进行拉伸吹塑成形。拉伸吹塑成形可采用热型坯方式或冷型坯方式的任意方式进行。在此,所谓型坯意指预成形坯。
预加热后,向加热到拉伸温度的有底的多层预成形坯内吹入压缩空气等加压流体,使之膨胀拉伸。一般拉伸倍率在轴向为1.5-3倍、在周向为3-5倍左右。吹塑比(总拉伸倍率)根据拉伸吹塑成形容器(吹塑成形瓶)的种类不同而有一些差异,但一般的吹塑成形瓶为6-9倍,耐压瓶为8-9.5倍,耐热瓶为6-7.5倍,大型瓶为7-8倍左右。
拉伸吹塑成形在结晶性树脂的场合,一般在树脂的玻璃转变(玻化)温度以上、晶化温度以下的温度范围进行。在热塑性聚酯树脂为PETG之类的非晶性树脂的场合,由于看不到明显的晶化温度和熔点,因此在树脂的玻璃转变温度(PETG为约81℃)以上、熔融温度(PETG为约180℃以上)以下的温度拉伸吹塑成形。
在热塑性聚酯树脂为PET的场合,在其玻璃转变温度以上、晶化温度以下的温度范围、优选80-170℃的温度向多层预成形坯吹入压缩空气,该时,插入拉伸杆,在轴(纵)方向和周(横)方向进行双向拉伸。中间层的聚乙醇酸的玻璃转变温度为约38℃,追随内外层的热塑性聚酯树脂的拉伸,被容易地拉伸。
在拉伸吹塑成形工序中,将金属模温度加热到100℃以上的温度,在拉伸吹塑成形的同时,进行被双向定向的多层容器的主体部的热固定为好。通过在该高温的金属模内的热处理,热固定被双向定向的状态,同时进行热塑性聚酯树脂层的晶化。通过热处理,在拉伸吹塑成形工序中发生的内部应变得以缓和,定向晶化被促进。该主体部的定向晶体与开口端部因加热处理产生的大的球晶不同,主体部即使促进定向晶化也保持着透明性。热固定后的主体部侧壁的晶化度通常达到28vol.%以上。
特别是使用PET作为热塑性聚酯树脂的场合,在提高耐热性上希望进行热固定。在制造适于热填充的耐热性的多层容器的场合,为了防止热填充时容器的热收缩·变形,将拉伸吹塑成形用金属模的温度升温到100℃以上,在拉伸吹塑成形的同时,在金属模内热处理(热固定)。其具体的金属模温度为100-165℃,一般耐热容器的场合优选为145-155℃,在高耐热容器的场合优选为160-165℃的范围。热处理时间根据多层容器的厚度和热处理温度而变动,但通常为1-30秒,优选为2-20秒。
作为在金属模内进行热处理的方法,可适当适用在1个金属模进行拉伸吹塑成形和热固定的1模方式;取出1次拉伸吹塑成形的多层容器,热固定后,用二次金属模进行二次拉伸吹塑成形的2步式吹塑方式、其他烘箱式吹塑方式等。在拉伸吹塑成形时进行了热处理的场合,充分地冷却后从金属模内取出多层容器。
实施例
以下举出实施例和比较例,更具体说明本发明。各种物性和特性的测定法和评价法见下面。
(1)熔体粘度(η):
作为试样使用,制作各树脂厚度约0.2mm的非晶片,在150℃加热5分钟,使之晶化的树脂片,使用东洋精机(株)的キャピログラフ1C(模头=Φ1mm×10mmL),聚乙醇酸的场合在树脂温度240℃、PET的场合在280℃、剪切速度100秒-1的条件下测定。
(2)玻璃转变温度、晶化温度和熔点:
玻璃转变温度、晶化温度和熔点,依据JIS K-7121标准使用パ-キンエルマ-公司制的DSC7测定。升温速度和降温速度都为20℃/分。
(3)晶化度:
从多层容器的晶化部分切取约5g的试样,精确称量。将该试样插入岛津制作所制的密度测定装置AccuPyc 1330,测定密度。该装置是使用氦气测定体积的,通过输入上述的重量,自动地显示密度。基于该密度的测定值,算出晶化度。测定温度为23℃。
(4)氧气透过系数:
依据JIS K-7126标准在温度23℃和80%RH的条件下测定。使用Modern Controls公司制的Oxtran2/20测定。
(5)多层容器的氧透过率:
使用容量1500ml的多层容器,在测定温度20℃、使容器内侧为100%RH(相对湿度),使外侧为65%RH,使用Modern Controls公司制的Oxtran-100测定多层容器的氧透过率。
(6)成形加工性
在共注射成形时观察中间层的打入高度(从瓶底部到聚乙醇酸层的顶端部的高度)是否有变动,按以下基准评价。
A:成形加工性优良
B:显示一般的加工性
C:成形加工性差
(7)耐热性:
向多层容器填充80℃的热水(热填充),放置1分,观察多层容器的开口端部和容器本体的变形和收缩状况,按以下基准评价。
A:没有变形或收缩
B:有变形或收缩
(8)透明性:
切取多层容器的主体部,测定其浊度值,按以下基准评价。
A:浊度值4.0%以下
B:浊度值超过4.0%、但在5.0%以下
C:浊度值超过5.0%
[实施例1]
作为聚乙醇酸使用了在温度240℃、剪切速度100秒-1下测定的熔体粘度[ηP]500Pa·s的均聚物(玻璃转变温度=38℃、熔点=221℃、晶化温度=91℃)。该聚乙醇酸的氧气透过系数(PO2)为2.5×10- 14cm3·cm/cm2·sec·cmHg。该聚乙醇酸的二氧化碳透过系数(PCO2)为8.9×10-14cm3·cm/cm2·sec·cmHg(GLサイエンス公司制、使用薄膜两面加湿气体透过测定装置测定)。
作为热塑性聚酯树脂,使用了在温度280℃、剪切速度100秒-1下测定的熔体粘度[ηT]190Pa·s的PET(IV值=0.8dl/g、玻璃转变温度=75℃、熔点=252℃、晶化温度=150℃)。
预干燥这些树脂充分地去除水分后,使用2种5层用共注射成形机(日精ASB-250T改造品),设定成内外层(PET)侧的注射缸端头部温度280℃、中间层(聚乙醇酸)侧注射缸端头部温度240℃、合流的热流道区部265℃,采用逐次成形法共注射成形于金属模模腔内,制作了开口端部具有PET单层结构、在主体部和底部中间层聚乙醇酸层埋入到PET层的多层结构的有底预成形坯。层构成为PET/PGA/PET/PGA/PET这5层构成。
采用红外线照射将该多层预成形坯的开口端部加热到200℃,使之晶化。接着,按热型坯方式,在树脂温度160℃下在拉伸吹塑成形用金属模的模腔内吹入压缩空气,以拉伸倍率(吹塑比)约6倍(轴向=约2倍、周向=约3倍)进行了拉伸吹塑成形。将金属模的温度加热到160℃,在拉伸吹塑成形时热处理多层容器5秒,热固定包括主体部的整体。
其后,将压缩空气切换成内部冷却用的调温成5℃的冷却空气,流过20秒后,立即从金属模取出多层容器,缓冷,得到内容积为1500mL、具有PET/PGA/PET/PGA/PET的层构成、开口端部为PET单层、主体部和底部为聚乙醇酸层、并且聚乙醇酸层埋入到PET层中的结构的多层容器。
预成形坯的重量为约50g。多层容器主体部的总层厚为330μm,内外层和中间层的PET层合计厚度为300μm,聚乙醇酸层的厚度,各层为15μm、合计为30μm。该多层容器开口部的晶化度为31vol.%以上。
[实施例2]
针对实施例1,除了在采用共注射的预成形坯成形时,采用将PET的注射只限于浇口部的条件以外,其他与实施例1同样,得到具有从外层侧开始的PET(100μm)/PGA(30μm)/PET(200μm)的层构成、开口端部为PET单层、主体部和底部为聚乙醇酸层、并且聚乙醇酸层埋入到内外的PET层中的结构的多层容器。预成形坯的重量为约50g。多层容器主体部的总层厚为330μm,内外层的PET层的合计厚度为300μm,聚乙醇酸层的厚度为30μm。
[比较例1]
针对实施例2,除了代替聚乙醇酸使用了MXD6尼龙(三菱气体化学制:P-6001、熔点=243℃、玻璃转变温度=75℃、晶化温度=163℃、MI=7g/10分)以外,用与实施例2相同的方法成形多层容器。但是,设定成内外层(PET)侧注射缸端头部温度280℃、中间层(MXD6尼龙)侧注射缸端头部温度260℃、合流的热流道区部270℃。预成形坯的重量为约50g。多层容器主体部的总层厚为330μm,内外层的PET层的合计厚度为300μm,MXD6尼龙层的厚度为30μm。
[比较例2]
针对实施例2,除了代替聚乙醇酸使用了EVOH树脂(日本合成化学制:DC3212、熔点=183℃、玻璃转变温度=61℃、晶化温度=160℃、MI=12g/10分)以外,用与实施例2相同的方法成形多层容器。但是,设定成内外层(PET)侧注射缸端头部温度270℃、中间层(EVOH)侧注射缸端头部温度200℃、PET和EVOH合流的热流道区部260℃。预成形坯的重量为约50g。容器主体部的合计层厚为330μm,内外层的PET层的合计厚度为300μm,EVOH层的厚度为约30μm。
[比较例3]
针对实施例2,除了不进行预成形坯开口端部的晶化处理和拉伸吹塑成形时的在金属模内的热处理以外,用与实施例2相同的方法成形多层容器。预成形坯的重量为约50g。多层容器主体部的总层厚为330μm,内外层的PET层的合计厚度为300μm,聚乙醇酸层的厚度为30μm。
[实施例3]
针对实施例1,代替PET使用了聚萘二甲酸乙二醇酯(PEN)均聚物(熔点=265℃、玻璃转变温度=120℃、晶化温度=220℃、),但未进行预成形坯开口端部的晶化和在金属模内的容器主体部的热固定。其他与实施例1同样地制作了多层容器。该多层容器不仅耐热填充,而且具有也能耐受煮沸的优良的耐热性和氧气阻挡性。
[实施例4]
针对实施例1,除了代替PET使用了依据ANTEC2000pp-2412公开的方法的PET/粘土纳米复合材料(含有3重量%的纳米复合材料用粘土的PET)以外,与实施例1同样地制作了多层容器。得到的多层容器,氧透过率比实施例1的多层容器大一些,再有,不仅耐热填充,还具有也能耐受煮沸的优良的耐热性和氧气阻挡性。
表1
实施例 | 比较例 | |||||
1 | 2 | 3 | 1 | 2 | 3 | |
容器主体部侧壁层构成厚度(μm)PET层(合计)其他层(合计) | PET/PGA/PET/PGA/PET330300(3层)30(2层) | PET/PGA/PET330300(2层)30(1层) | PEN/PGA/PEN330300(2层)30(1层) | PET/MXD6/PET330300(2层)30(1层) | PET/EVOH/PET330300(2层)30(1层) | PET/PGA/PET330300(2层)30(1层) |
拉伸倍率(倍)吹塑比轴向周向 | 约6约2约3 | 约6约2约3 | 约6约2约3 | 约6约2约3 | 约6约2约3 | 约6约2约3 |
开口端部热处理晶化度(vol.%) | 有≥30 | 有≥30 | 无- | 有≥30 | 有≥30 | 无- |
热固定(145℃/10sec) | 有 | 有 | 无 | 有 | 有 | 无 |
氧透过率(cc/bottle·day) | 0.005 | 0.007 | 0.004 | 0.03 | 0.01 | 0.005 |
成形加工性 | A | A | A | B | C | A |
耐热性93℃/20秒的热填充 | A | A | A | A | A | B |
透明性 | A | B | A | C | C | A |
中间层配置了EVOH层的多层容器(比较例2),在成形条件下树脂的流动特性不好,拉伸特性不良,EVOH层的厚度分布离散,打入高度的变动导致的外观不良、热稳定性差、成形加工性差。
实施例1的多层容器,将中间层分为2层,形成分离阻挡,因此多层容器的氧透过率提高。
上述实施例采用了热型坯方式,但证实了即使是冷型坯方式,以实施例1和实施例2的层构成也得到同样良好的结果。
实施例的多层容器,作为热塑性聚酯树脂使用了PEN,因此即使不进行开口端部的晶化处理和在金属模内的容器主体部的热处理,也得到还能耐受煮沸处理的耐热性的拉伸吹塑容器。
工业实用性
本发明提供了气体阻挡性、耐热性、成形加工性、透明性、耐久性优良的多层容器及其制造方法。本发明的多层容器具有高的氧气阻挡性和二氧化碳阻挡性,能以各种瓶、广口瓶、杯子等形状使用。本发明的多层容器具有能耐受热填充的耐热性。
Claims (20)
1.一种多层容器,其特征是,它是至少含有聚乙醇酸层和热塑性聚酯树脂层的多层容器,
(a)聚乙醇酸是按60重量%以上的比例含有用式(1)
表示的重复单元,并且依据JIS K-7126标准在温度23℃和相对湿度80%的条件下测定的氧气透过系数为5.0×10-14cm3·cm/cm2·sec·cmHg以下的气体阻挡性树脂,
(b)在多层容器的主体部和底部,热塑性聚酯树脂层形成内外层,
(c)在多层容器的主体部和底部,由至少1层的聚乙醇酸层构成的中间层埋入到热塑性聚酯树脂层之中,
(d)多层容器的开口端部只由热塑性聚酯树脂层形成,
(e)多层容器的主体部被双向定向,并且
(f)多层容器具有能耐受在93℃、20秒钟的条件下的热填充的耐热性。
2.根据权利要求1所记载的多层容器,多层容器的开口端部的热塑性聚酯树脂层被晶化。
3.根据权利要求1所记载的多层容器,多层容器的主体部在双向定向的状态下被热固定。
4.根据权利要求1所记载的多层容器,多层容器的主体部具有浊度值为4.0%以下的透明性。
5.根据权利要求1所记载的多层容器,中间层由至少2层的聚乙醇酸层构成。
6.根据权利要求1所记载的多层容器,多层容器的主体部和底部具有由(i)热塑性聚酯树脂/聚乙醇酸/热塑性聚酯树脂、或者(ii)热塑性聚酯树脂/聚乙醇酸/热塑性聚酯树脂/聚乙醇酸/热塑性聚酯树脂组成的层构成。
7.根据权利要求1所记载的多层容器,热塑性聚酯树脂是热塑性芳香族聚酯树脂。
8.根据权利要求7所记载的多层容器,热塑性芳香族聚酯树脂是选自聚对苯二甲酸乙二醇酯(PET)、以1,4-环己烷二甲醇为共聚成分的非晶性聚对苯二甲酸乙二醇酯共聚物(PETG)、聚萘二甲酸乙二醇酯(PEN)、聚对苯二甲酸丁二醇酯(PBT)、以及聚-1,4-亚环己基二亚甲基对苯二甲酸酯·间苯二甲酸酯共聚物(PCTA)的至少1种热塑性芳香族聚酯树脂。
9.根据权利要求1所记载的多层容器,热塑性聚酯树脂是聚对苯二甲酸乙二醇酯,并且多层容器的主体部在双向定向的状态下被热固定。
10.根据权利要求1所记载的多层容器,热塑性聚酯树脂是含有纳米复合材料用粘土的热塑性聚酯树脂组合物。
11.根据权利要求1所记载的多层容器,在聚乙醇酸层与热塑性聚酯层之间存在粘接剂层。
12.根据权利要求10所记载的多层容器,粘接剂层含有干燥剂。
13.根据权利要求1所记载的多层容器,在多层容器的主体部和底部,还进一步含有再磨层。
14.一种制造多层容器的方法,其特征是,该方法是至少共注射聚乙醇酸和热塑性聚酯树脂,形成有底的多层预成形坯,接着双向拉伸吹塑成形该多层预成形坯,制造多层容器的方法,
(I)作为聚乙醇酸,使用按60重量%以上的比例含有用式(1)
表示的重复单元,并且依据JIS K-7126标准在温度23℃和相对湿度80%的条件下测定的氧气透过系数为5.0×10-14cm3·cm/cm2·sec·cmHg以下的气体阻挡性树脂,
(II)通过使用具有多台注射缸的成形机,采用逐次成形法或同时成形法以一次合模动作通过1个浇口向单一的预成形坯金属模模腔内共注射熔融的各树脂,来制作(A)内外层为热塑性聚酯树脂层、(B)由至少1层的聚乙醇酸层构成的中间层埋入到热塑性聚酯树脂层之中、(C)开口端部只由热塑性聚酯树脂层构成、(D)其他部分具有3层以上的多层构成的有底的多层预成形坯,
(III)根据需要加热处理多层预成形坯的开口端部,使热塑性聚酯树脂层晶化,然后,
(IV)将多层预成形坯调整成可拉伸的温度后,插入到吹塑成形用金属模模腔内,吹入加压流体,进行拉伸吹塑成形。
15.根据权利要求14所记载的制造方法,在工序(II)中,采用同时成形法制作多层预成形坯,在该时,控制共注射时的各树脂的熔体粘度,以使在各个熔融温度和剪切速度100秒-1下测定的热塑性聚酯树脂的熔体粘度(ηT)相对于聚乙醇酸的熔体粘度(ηP)的比(ηT/ηP)为1以下。
16.根据权利要求14所记载的制造方法,在工序(II)中,采用逐次成形法制作多层预成形坯,在该时,通过错开熔融的各树脂从注射缸注射的定时,以连续且交替地注射,来制作使先注射的热塑性聚酯树脂形成为内外层、使后注射的聚乙醇酸形成为中间层的多层预成形坯。
17.根据权利要求14所记载的制造方法,在工序(II)中,采用逐次成形法制作多层预成形坯,在该时,通过错开熔融的各树脂从注射缸注射的定时,并首先注射热塑性聚酯树脂,中途注射聚乙醇酸,同时且连续地注射两树脂,来制作使热塑性聚酯树脂形成为内外层、使聚乙醇酸形成为中间层的多层预成形坯。
18.根据权利要求14所记载的制造方法,在工序(III)中,加热处理多层预成形坯的开口端部,使热塑性聚酯树脂层晶化成晶化度25vol.%以上。
19.根据权利要求14所记载的制造方法,在工序(IV)中,以在轴向为1.5-3倍、在周向为3-5倍的倍率进行双向拉伸吹塑成形。
20.根据权利要求14所记载的制造方法,在工序(IV)中,将金属模温度加热到100-165℃,在拉伸吹塑成形的同时,进行被双向定向的多层容器的主体部的热固定。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001336601A JP3978012B2 (ja) | 2001-11-01 | 2001-11-01 | 多層容器及びその製造方法 |
JP336601/2001 | 2001-11-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1578731A true CN1578731A (zh) | 2005-02-09 |
CN100349736C CN100349736C (zh) | 2007-11-21 |
Family
ID=19151396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB028217950A Expired - Fee Related CN100349736C (zh) | 2001-11-01 | 2002-11-01 | 多层容器及其制造方法 |
Country Status (8)
Country | Link |
---|---|
US (1) | US7713464B2 (zh) |
EP (1) | EP1449646B1 (zh) |
JP (1) | JP3978012B2 (zh) |
KR (1) | KR100920392B1 (zh) |
CN (1) | CN100349736C (zh) |
AT (1) | ATE395184T1 (zh) |
DE (1) | DE60226632D1 (zh) |
WO (1) | WO2003037624A1 (zh) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101247933B (zh) * | 2005-08-22 | 2011-02-09 | 艾萨帕克控股公司 | 多层产品及其制造方法 |
CN101151151B (zh) * | 2005-04-01 | 2012-04-11 | 株式会社吴羽 | 多层吹塑成型容器及其制造方法 |
CN104608335A (zh) * | 2015-02-09 | 2015-05-13 | 扬州吉山津田光电科技有限公司 | 一种双色瓶的注塑模具及其双色瓶的制造工艺 |
CN105295312A (zh) * | 2009-02-18 | 2016-02-03 | 英威达技术有限公司 | 用于装填碳酸化巴氏杀菌产品的聚酯瓶及其应用 |
TWI598210B (zh) * | 2013-06-28 | 2017-09-11 | 吉野工業所股份有限公司 | 具合成樹脂製窗的容器、預製件以及預製件的射出成型方法 |
CN113524495A (zh) * | 2017-06-23 | 2021-10-22 | 赫斯基注塑系统有限公司 | 适合于随后吹塑成最终成形容器的模制品 |
Families Citing this family (51)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE484377T1 (de) | 2001-07-19 | 2010-10-15 | Toyo Seikan Kaisha Ltd | Durch strecken und wärmefixierung erhaltener formkörper und herstellungsverfahren dafür |
WO2003097468A1 (fr) | 2002-05-21 | 2003-11-27 | Kureha Chemical Industry Company, Limited | Bouteille presentant une excellente aptitude au recyclage et procede de recyclage de cette bouteille |
KR100969848B1 (ko) * | 2002-05-29 | 2010-07-13 | 가부시끼가이샤 구레하 | 생분해성 내열성 경질수지 용기의 제조방법 |
TWI247782B (en) * | 2003-01-10 | 2006-01-21 | Mitsui Chemicals Inc | Polyester resins composition |
JP2005002205A (ja) * | 2003-06-11 | 2005-01-06 | Asahi Denka Kogyo Kk | 熱可塑性ポリエステル系樹脂組成物 |
RU2312871C2 (ru) | 2003-08-12 | 2007-12-20 | Мицуи Кемикалз, Инк. | Смола на основе сложного полиэфира и формованный продукт из ламината на основе смолы из сложного полиэфира |
ATE417723T1 (de) * | 2003-10-01 | 2009-01-15 | Kureha Corp | Verfahren zur herstellung eines mehrschichtigen streckgeformten artikels |
US7648836B1 (en) * | 2004-01-28 | 2010-01-19 | Phase Dynamics, Inc. | Moisture and sediment analysis |
EP1710075A4 (en) * | 2004-01-30 | 2010-06-09 | Kureha Corp | HOLLOW CONTAINER AND PROCESS FOR PRODUCTION THEREOF |
JP4579569B2 (ja) * | 2004-04-16 | 2010-11-10 | 株式会社クレハ | 多層二軸延伸ブローボトル及びその製造方法 |
KR100844632B1 (ko) * | 2004-06-23 | 2008-07-07 | 네이쳐웍스 엘엘씨 | 폴리락타이드 수지를 이용한 사출 스트레치 블로우 성형방법 |
US20080063841A1 (en) * | 2004-09-30 | 2008-03-13 | Toyo Kohan Co., Ltd. | Multilayer Resin Film and Method for Producing Multilayer Resin Film |
AU2006227916B2 (en) * | 2005-03-15 | 2011-07-21 | Colgate-Palmolive Company | Method of manufacturing overmolded containers, overmolded containers and preforms, and method for recycling an overmolded container |
US8734923B2 (en) * | 2005-03-15 | 2014-05-27 | Colgate-Palmolive Company | Blow molded polyester container with an over-molded thermoplastic layer |
US20080251492A1 (en) * | 2005-03-15 | 2008-10-16 | Colgate-Palmolive Company | Overmolded Containers With Improved Gripping and Methods of Manufacture Thereof |
BE1017012A6 (nl) * | 2005-03-25 | 2007-12-04 | Resilux | Behouder en voorvorm voor het blaasvormen hiervan en werkwijze voor het vervaardigen hiervan. |
US7927678B2 (en) | 2005-12-22 | 2011-04-19 | Mitsubishi Gas Chemical Company, Inc. | Multilayer bottle |
US20080029509A1 (en) * | 2006-08-04 | 2008-02-07 | Wu Yih-Ming | Moistureproof container |
JP4871745B2 (ja) * | 2007-01-23 | 2012-02-08 | 中本パックス株式会社 | レトルト食品容器の製造方法 |
US20080230954A1 (en) * | 2007-03-20 | 2008-09-25 | Green Harvest Technologies, Llc | Injection Stretch Blow Molded Polylactide Bottle and Process For Making Same |
US8142867B2 (en) | 2007-03-28 | 2012-03-27 | Toyo Seikan Kaisha, Ltd. | Biaxially stretch blow-molded container and process for producing the same |
EP1982829A1 (fr) * | 2007-04-20 | 2008-10-22 | Aisapack Holding SA | Récipient pour vin ou boisson similaire |
US8245848B2 (en) | 2008-08-21 | 2012-08-21 | Sacred Green, Inc. | Compostable container for storing fluids |
US8899317B2 (en) | 2008-12-23 | 2014-12-02 | W. Lynn Frazier | Decomposable pumpdown ball for downhole plugs |
US8079413B2 (en) | 2008-12-23 | 2011-12-20 | W. Lynn Frazier | Bottom set downhole plug |
JP4737295B2 (ja) * | 2009-01-19 | 2011-07-27 | マツダ株式会社 | 発泡樹脂成形品の成形方法及び成形装置 |
US9127527B2 (en) | 2009-04-21 | 2015-09-08 | W. Lynn Frazier | Decomposable impediments for downhole tools and methods for using same |
US9163477B2 (en) | 2009-04-21 | 2015-10-20 | W. Lynn Frazier | Configurable downhole tools and methods for using same |
US9062522B2 (en) | 2009-04-21 | 2015-06-23 | W. Lynn Frazier | Configurable inserts for downhole plugs |
US9109428B2 (en) | 2009-04-21 | 2015-08-18 | W. Lynn Frazier | Configurable bridge plugs and methods for using same |
US9181772B2 (en) | 2009-04-21 | 2015-11-10 | W. Lynn Frazier | Decomposable impediments for downhole plugs |
US9562415B2 (en) | 2009-04-21 | 2017-02-07 | Magnum Oil Tools International, Ltd. | Configurable inserts for downhole plugs |
JP5365916B2 (ja) * | 2009-05-29 | 2013-12-11 | 株式会社吉野工業所 | 合成樹脂製厚肉成形品 |
KR101657733B1 (ko) | 2009-07-09 | 2016-09-20 | 어드밴스드 테크놀러지 머티리얼즈, 인코포레이티드 | 라이너 베이스의 저장 시스템, 라이너 및 반도체 공정에 고순도 재료를 공급하는 방법 |
EP2474416A1 (en) * | 2009-08-31 | 2012-07-11 | Kureha Corporation | Laminate and stretched laminate using same |
WO2012071370A2 (en) | 2010-11-23 | 2012-05-31 | Advanced Technology Materials, Inc. | Liner-based dispenser |
WO2012118527A1 (en) | 2011-03-01 | 2012-09-07 | Advanced Technology Materials, Inc. | Nested blow molded liner and overpack and methods of making same |
FR2987985B1 (fr) * | 2012-03-15 | 2014-06-06 | Albea Services | Tube flexible avec bouchon applicateur |
US20140087108A1 (en) * | 2012-09-26 | 2014-03-27 | Earth Renewable Technologies | Extrudable composition derived from renewable resources and method of making molded articles utilizing the same |
JP6776511B2 (ja) * | 2015-07-01 | 2020-10-28 | 大日本印刷株式会社 | 複合容器の製造方法、複合プリフォームおよび複合容器 |
JP6880553B2 (ja) * | 2016-02-24 | 2021-06-02 | 東洋製罐グループホールディングス株式会社 | 複合容器及びその製造方法 |
WO2017156384A1 (en) * | 2016-03-11 | 2017-09-14 | Ring Container Technologies | Method of manufacture of a container |
WO2018090128A1 (en) | 2016-11-18 | 2018-05-24 | Husky Injection Molding Systems Ltd. | Molded article, container and a method for the molding and recycling thereof |
CN111164017B (zh) * | 2017-10-06 | 2022-02-08 | 龟甲万株式会社 | 合成树脂制多重瓶 |
EP3470195A1 (en) | 2017-10-12 | 2019-04-17 | The Procter & Gamble Company | Blow molded article with visual effects |
BR112020011972B1 (pt) * | 2017-12-13 | 2023-01-31 | Amcor Rigid Packaging Usa, Llc | Inserção de camada de barreira passiva dentro da parede do recipiente de bebida carbonatada para aprimorar vida útil |
JP7242398B2 (ja) * | 2019-04-23 | 2023-03-20 | 大日本印刷株式会社 | 複合容器の製造方法および製造装置、複合プリフォームの製造方法および製造装置 |
CN114929467A (zh) * | 2020-01-08 | 2022-08-19 | 宝洁公司 | 具有颜色梯度的吹塑多层制品 |
WO2021206089A1 (ja) * | 2020-04-06 | 2021-10-14 | 日精エー・エス・ビー機械株式会社 | ホットランナー型および樹脂製容器の製造装置 |
US20230049435A1 (en) * | 2021-08-13 | 2023-02-16 | Pepsico, Inc. | Multi-layer bottle |
WO2024168000A1 (en) * | 2023-02-10 | 2024-08-15 | The Coca-Cola Company | Multilayer pet bottles with low light transmittance |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5841181B2 (ja) | 1979-11-02 | 1983-09-10 | 東洋紡績株式会社 | 多層容器の製造法 |
JPS57128516A (en) | 1981-10-23 | 1982-08-10 | Toyobo Co Ltd | Blow-molded container having multilayer construction and method for producing the same |
US4565851A (en) * | 1983-04-25 | 1986-01-21 | Eastman Kodak Company | Containers having improved gas barrier properties |
US5562960A (en) * | 1984-02-15 | 1996-10-08 | Yoshino Kogyosho Co., Ltd. | Double-blown PET bottle shaped container having essentially no residual stress and superior heat resistance |
US4609516A (en) * | 1984-02-17 | 1986-09-02 | Continental Pet Technologies, Inc. | Method of forming laminated preforms |
JPS6147337A (ja) | 1984-08-15 | 1986-03-07 | 東洋製罐株式会社 | ガスバリヤ−性に優れたプラスチツク容器 |
JPH0778117B2 (ja) * | 1985-07-30 | 1995-08-23 | 三井石油化学工業株式会社 | 共縮合ポリエステルおよびその製法 |
GB2188272B (en) * | 1986-02-28 | 1990-10-10 | Toyo Seikan Kaisha Ltd | A process for preparation of a biaxially drawn polyester vessel having resistance to heat distortion and gas barrier properties. |
JPS62199425A (ja) | 1986-02-28 | 1987-09-03 | Toyo Seikan Kaisha Ltd | 耐熱収縮性ガスバリヤ−二軸延伸ポリエステル容器の製造法 |
US6217818B1 (en) * | 1995-07-07 | 2001-04-17 | Continental Pet Technologies, Inc. | Method of making preform and container with crystallized neck finish |
JP4073052B2 (ja) * | 1996-04-30 | 2008-04-09 | 株式会社クレハ | ポリグリコール酸シート及びその製造方法 |
JP3731838B2 (ja) * | 1996-04-30 | 2006-01-05 | 株式会社クレハ | ポリグリコール酸配向フィルム及びその製造方法 |
US6001439A (en) * | 1996-05-09 | 1999-12-14 | Kureha Kagaku Kogyo K.K. | Stretch blow molded container and production process thereof |
EP0806283B1 (en) * | 1996-05-09 | 2003-10-01 | Kureha Kagaku Kogyo Kabushiki Kaisha | Stretch blow molded container and production process thereof |
EP0909640B1 (en) * | 1996-07-19 | 2006-02-01 | Kureha Kagaku Kogyo Kabushiki Kaisha | Gas-barrier composite film |
WO1998010932A1 (fr) * | 1996-09-13 | 1998-03-19 | Kureha Kagaku Kogyo K.K. | Contenant creux multicouches a effet barriere vis-a-vis des gaz |
JP3838757B2 (ja) * | 1996-09-13 | 2006-10-25 | 株式会社クレハ | ガスバリヤー性多層中空容器 |
EP1019234B1 (en) * | 1997-04-16 | 2007-08-01 | Husky Injection Molding Systems Ltd. | Partial crystallization method and apparatus of amorphous plastic articles |
US7097890B1 (en) * | 1998-07-31 | 2006-08-29 | Chevron Phillips Chemical Co. Lp | Polymer with pendent cyclic olefinic functions for oxygen scavenging packaging |
BR9913093A (pt) * | 1998-08-20 | 2001-05-08 | Eastman Chem Co | Processo para a moldagem por coinjeção de um artigo de várias camadas, artigo de várias camadas, e, processo para a coextrução de um artigo de várias camadas |
US6562276B1 (en) * | 1998-08-20 | 2003-05-13 | Eastman Chemical Company | Process for forming a multilayer, coinjected article |
JP2000202970A (ja) * | 1999-01-13 | 2000-07-25 | Pi Gijutsu Kenkyusho:Kk | ポリイミド被覆フィルム |
WO2001039956A1 (fr) * | 1999-11-30 | 2001-06-07 | Yoshino Kogyosho Co., Ltd. | Enceinte de stratification de resine de polyester et procede de moulage correspondant |
JP3858113B2 (ja) * | 1999-11-30 | 2006-12-13 | 株式会社吉野工業所 | 耐熱性ポリエステル樹脂積層容器とその成形方法 |
-
2001
- 2001-11-01 JP JP2001336601A patent/JP3978012B2/ja not_active Expired - Fee Related
-
2002
- 2002-11-01 KR KR1020047005876A patent/KR100920392B1/ko not_active IP Right Cessation
- 2002-11-01 WO PCT/JP2002/011464 patent/WO2003037624A1/ja active IP Right Grant
- 2002-11-01 AT AT02775474T patent/ATE395184T1/de not_active IP Right Cessation
- 2002-11-01 CN CNB028217950A patent/CN100349736C/zh not_active Expired - Fee Related
- 2002-11-01 DE DE60226632T patent/DE60226632D1/de not_active Expired - Lifetime
- 2002-11-01 EP EP20020775474 patent/EP1449646B1/en not_active Expired - Lifetime
- 2002-11-01 US US10/494,132 patent/US7713464B2/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101151151B (zh) * | 2005-04-01 | 2012-04-11 | 株式会社吴羽 | 多层吹塑成型容器及其制造方法 |
CN101247933B (zh) * | 2005-08-22 | 2011-02-09 | 艾萨帕克控股公司 | 多层产品及其制造方法 |
CN105295312A (zh) * | 2009-02-18 | 2016-02-03 | 英威达技术有限公司 | 用于装填碳酸化巴氏杀菌产品的聚酯瓶及其应用 |
TWI598210B (zh) * | 2013-06-28 | 2017-09-11 | 吉野工業所股份有限公司 | 具合成樹脂製窗的容器、預製件以及預製件的射出成型方法 |
CN104608335A (zh) * | 2015-02-09 | 2015-05-13 | 扬州吉山津田光电科技有限公司 | 一种双色瓶的注塑模具及其双色瓶的制造工艺 |
CN113524495A (zh) * | 2017-06-23 | 2021-10-22 | 赫斯基注塑系统有限公司 | 适合于随后吹塑成最终成形容器的模制品 |
Also Published As
Publication number | Publication date |
---|---|
KR20040058012A (ko) | 2004-07-02 |
US7713464B2 (en) | 2010-05-11 |
CN100349736C (zh) | 2007-11-21 |
EP1449646B1 (en) | 2008-05-14 |
ATE395184T1 (de) | 2008-05-15 |
JP2003136657A (ja) | 2003-05-14 |
JP3978012B2 (ja) | 2007-09-19 |
EP1449646A1 (en) | 2004-08-25 |
WO2003037624A1 (fr) | 2003-05-08 |
KR100920392B1 (ko) | 2009-10-07 |
EP1449646A4 (en) | 2006-04-26 |
DE60226632D1 (de) | 2008-06-26 |
US20050011892A1 (en) | 2005-01-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN100349736C (zh) | 多层容器及其制造方法 | |
CN1805991A (zh) | 用于热填充应用的聚酯组合物、由它制备的容器、和方法 | |
EP1562728B1 (en) | Pet copolymer composition with enhanced mechanical properties and stretch ratio, articles made therewith and methods | |
CN1860014A (zh) | 多层双轴拉伸吹塑瓶及其制造方法 | |
EP1864797A1 (en) | Multilayer blow-molded container and method for producing same | |
CN1956900A (zh) | 包装制品如不透明瓶以及制造这些制品的方法 | |
CN1305503A (zh) | 具有良好防气体渗透性的含亚苯基二(羟基乙酸)残基的多层聚酯制品 | |
WO2006124200A1 (en) | Injection molded preform, stretch blow molded container and method for reducing the cycle time for making it | |
CN1659008A (zh) | 耐热聚酯容器及其制造方法 | |
JP5018881B2 (ja) | 耐熱圧性ポリエステルボトル及びその製造方法 | |
CN1556747A (zh) | 通过拉伸和热固定制备的模塑物品和用于生产该物品的方法 | |
JP4968329B2 (ja) | 二軸延伸ブロー成形容器及びその製造方法 | |
CN1835988A (zh) | 聚酯树脂和聚酯树脂叠层容器 | |
CN1239310C (zh) | 共注射拉伸吹塑成型容器 | |
CN1732074A (zh) | 料坯,其生产方法,和从该料坯制造的双轴拉伸容器 | |
JP4525447B2 (ja) | 耐熱性ポリエステル延伸成形容器及びその製造方法 | |
CN1556742A (zh) | Pet塑坯和容器如食品瓶子的生产方法,得到的容器和中间体塑坯 | |
CN1237936A (zh) | 包含双轴取向聚酯的透明的氧气清除性制品 | |
JPH04168148A (ja) | ポリエステル樹脂組成物およびその用途 | |
TW200842015A (en) | Method for direct and continuous manufacture of polyester molded bodies with low acetaldehyde content | |
JP4430833B2 (ja) | ポリエステル組成物製ボトルおよびその製造方法 | |
JPH03175032A (ja) | 共射出多層構造体 | |
RU2412095C2 (ru) | Способ производства многослойной тары, содержащей нанокомпозит | |
JP3597943B2 (ja) | ポリエステル樹脂組成物及びそれからなる中空成形体 | |
RU2430939C2 (ru) | Нанокомпозит и способ его производства |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071121 Termination date: 20121101 |