JP7439373B2 - ブロー成形プラスチック容器、並びにライナーとしてそのブロー成形プラスチック容器を備えるガス貯蔵タンク - Google Patents
ブロー成形プラスチック容器、並びにライナーとしてそのブロー成形プラスチック容器を備えるガス貯蔵タンク Download PDFInfo
- Publication number
- JP7439373B2 JP7439373B2 JP2021525195A JP2021525195A JP7439373B2 JP 7439373 B2 JP7439373 B2 JP 7439373B2 JP 2021525195 A JP2021525195 A JP 2021525195A JP 2021525195 A JP2021525195 A JP 2021525195A JP 7439373 B2 JP7439373 B2 JP 7439373B2
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- JP
- Japan
- Prior art keywords
- blow
- plastic container
- molded plastic
- weight
- polyamide
- 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.)
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- 239000002991 molded plastic Substances 0.000 title claims description 64
- 238000003860 storage Methods 0.000 title description 8
- 239000000203 mixture Substances 0.000 claims description 101
- 229920000642 polymer Polymers 0.000 claims description 78
- 229920002647 polyamide Polymers 0.000 claims description 54
- 239000004952 Polyamide Substances 0.000 claims description 53
- 239000004609 Impact Modifier Substances 0.000 claims description 24
- 150000004985 diamines Chemical class 0.000 claims description 24
- 150000003951 lactams Chemical class 0.000 claims description 20
- 238000005520 cutting process Methods 0.000 claims description 19
- 239000004033 plastic Substances 0.000 claims description 18
- 229920003023 plastic Polymers 0.000 claims description 18
- 239000002667 nucleating agent Substances 0.000 claims description 16
- 239000012760 heat stabilizer Substances 0.000 claims description 15
- 238000002844 melting Methods 0.000 claims description 14
- 230000008018 melting Effects 0.000 claims description 14
- 229920006012 semi-aromatic polyamide Polymers 0.000 claims description 13
- 125000003118 aryl group Chemical group 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 claims description 12
- 238000010101 extrusion blow moulding Methods 0.000 claims description 12
- 239000000178 monomer Substances 0.000 claims description 12
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 10
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 claims description 10
- 239000002828 fuel tank Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 10
- 239000012783 reinforcing fiber Substances 0.000 claims description 10
- 239000011256 inorganic filler Substances 0.000 claims description 9
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 9
- 229920006114 semi-crystalline semi-aromatic polyamide Polymers 0.000 claims description 9
- 150000001991 dicarboxylic acids Chemical class 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 238000000071 blow moulding Methods 0.000 claims description 7
- 239000000654 additive Substances 0.000 claims description 6
- 239000003963 antioxidant agent Substances 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 6
- 229910001507 metal halide Inorganic materials 0.000 claims description 6
- 150000005309 metal halides Chemical class 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 239000003381 stabilizer Substances 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 125000001931 aliphatic group Chemical group 0.000 claims 1
- 238000003825 pressing Methods 0.000 claims 1
- 229920002292 Nylon 6 Polymers 0.000 description 17
- 239000007789 gas Substances 0.000 description 15
- 230000008901 benefit Effects 0.000 description 12
- 230000004888 barrier function Effects 0.000 description 10
- 229920001577 copolymer Polymers 0.000 description 9
- 239000000446 fuel Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000012545 processing Methods 0.000 description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 7
- 239000002131 composite material Substances 0.000 description 6
- 239000003017 thermal stabilizer Substances 0.000 description 6
- -1 aliphatic diamine Chemical class 0.000 description 5
- 230000006378 damage Effects 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 239000003365 glass fiber Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- KKEYFWRCBNTPAC-UHFFFAOYSA-N terephthalic acid group Chemical group C(C1=CC=C(C(=O)O)C=C1)(=O)O KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 4
- 229920000049 Carbon (fiber) Polymers 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000004917 carbon fiber Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000004953 Aliphatic polyamide Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000012963 UV stabilizer Substances 0.000 description 2
- 229920003231 aliphatic polyamide Polymers 0.000 description 2
- 150000008064 anhydrides Chemical class 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 239000002516 radical scavenger Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 150000003336 secondary aromatic amines Chemical class 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- 235000012222 talc Nutrition 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- OKOBUGCCXMIKDM-UHFFFAOYSA-N Irganox 1098 Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)NCCCCCCNC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 OKOBUGCCXMIKDM-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 229920003188 Nylon 3 Polymers 0.000 description 1
- 229920001007 Nylon 4 Polymers 0.000 description 1
- 229920000577 Nylon 6/66 Polymers 0.000 description 1
- 229920000393 Nylon 6/6T Polymers 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 239000011157 advanced composite material Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 229920006020 amorphous polyamide Polymers 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- QXJJQWWVWRCVQT-UHFFFAOYSA-K calcium;sodium;phosphate Chemical compound [Na+].[Ca+2].[O-]P([O-])([O-])=O QXJJQWWVWRCVQT-UHFFFAOYSA-K 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000002144 chemical decomposition reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000011199 continuous fiber reinforced thermoplastic Substances 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000113 differential scanning calorimetry Methods 0.000 description 1
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical class C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000012764 mineral filler Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 1
- 229920006111 poly(hexamethylene terephthalamide) Polymers 0.000 description 1
- 229920006123 polyhexamethylene isophthalamide Polymers 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
- C08G69/265—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids from at least two different diamines or at least two different dicarboxylic acids
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- 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
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
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- 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
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/20—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
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- B32B1/00—Layered products having a general shape other than plane
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- 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
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- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K3/34—Silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3442—Heterocyclic compounds having nitrogen in the ring having two nitrogen atoms in the ring
- C08K5/3462—Six-membered rings
- C08K5/3465—Six-membered rings condensed with carbocyclic rings
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K7/06—Elements
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K7/14—Glass
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
- F17C1/02—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
- F17C1/04—Protecting sheathings
- F17C1/06—Protecting sheathings built-up from wound-on bands or filamentary material, e.g. wires
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F17C13/004—Details of vessels or of the filling or discharging of vessels for large storage vessels not under pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C49/20—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
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Description
a.-ラクタム、ジアミン及びジカルボン酸から誘導される反復単位、並びに任意選択的に連鎖停止剤若しくは分岐単位、又はその組み合わせからなる、コポリアミド(A1);或いは
-ラクタムから誘導される反復単位を含む少なくとも1種類のポリアミドと、ジアミン及びジカルボン酸から誘導される反復単位を含む少なくとも1種類のポリアミドとを含む、少なくとも2種類のポリアミドのブレンド(A2);からなるポリアミド(A)であって、
ラクタム、ジアミン及びジカルボン酸の総モル量に対して、カプロラクタムから誘導される反復単位を75~97.5モル%、芳香族環を有するモノマーから誘導される反復単位を1~12モル%含む、ポリアミド(A)と、
b.熱安定剤と、
c.耐衝撃性改良剤と、を含む。
a.-ポリアミド6(A3);又は
-ラクタムから誘導される反復単位を含むコポリアミド(A4);又は
-ラクタムから誘導される反復単位を含む少なくとも1種類のポリアミドと、ジアミン及びジカルボン酸から誘導される反復単位を含む少なくとも1種類のポリアミドとを含む、少なくとも2種類のポリアミドのブレンド(A5);からなるポリアミド(A)であって、
ラクタム、ジアミン及びジカルボン酸の総モル量に対して、カプロラクタムから誘導される反復単位を少なくとも75モル%含む、ポリアミド(A)と、
b.熱安定剤と、
c.耐衝撃性改良剤と、
d.ポリマー組成物の総重量に対して0.1~3重量%のニグロシンと、
を含むポリマー組成物で製造される。
-ラクタム、ジアミン及びジカルボン酸から誘導される反復単位、並びに任意選択的に連鎖停止剤、若しくは分岐単位、又はその組み合わせからなるコポリアミド(A1)、或いは
-ラクタムから誘導される反復単位を含む少なくとも1種類のポリアミドと、ジアミン及びジカルボン酸から誘導される反復単位を含む少なくとも1種類のポリアミドとを含む、少なくとも2種類のポリアミドのブレンド(A2)、からなり、
そのポリアミドは、ラクタム、ジアミン及びジカルボン酸の総モル量に対して、カプロラクタムから誘導される反復単位を75~97.5モル%、芳香族環を有するモノマーから誘導される反復単位を1~12モル%含む。
(f)最大で20重量%、好ましくは最大で10重量%の量で強化用繊維;又は
(g)最大で20重量%、好ましくは最大で10重量%の量で無機充填剤;又は
(h)最大で20重量%、好ましくは最大で10重量%の総量で1種又は複数種の更なる添加剤;のいずれか、或いはそのいずれかの組み合わせを含み、
その組み合わせの総量が、最大で30重量%、好ましくは最大で25重量%、より好ましくは最大で20重量%であり;且つ重量パーセンテージはポリマー組成物の総重量に対するパーセンテージである。
-ポリマー組成物を加熱して、ポリマー溶融物を得る工程;
-ポリマー溶融物を押出し、それによってポリマー溶融物から熱いパリソンが形成される工程;
-熱いパリソン周囲の金型を閉じる工程であって、一方で
・熱いパリソン内にガスを吹込み、それによって熱いパリソンが膨張し、それが冷却し、凝固するまで金型キャビティに対して押し当てて、膨張成形品を形成し、且つ
・膨張成形品から最端部を食切り、それによって食切りプラスチック容器が形成される、工程;
-金型を開放し、プラスチック容器を取り出す工程;
を含むと理解される。
-ポリマー組成物のポリマー溶融物を押出し、それによってポリマー溶融物から熱いパリソンが形成される工程;
-熱いパリソン周囲の金型を閉じる工程であって、一方で
・熱いパリソン内にガスを吹込み、それによって熱いパリソンが膨張し、それが冷却し、凝固するまで金型キャビティに対して押し当てて、膨張成形品を形成し、且つ
・膨張成形品から一部を食切り、それによって食切りプラスチック容器が形成される、工程;
を含み、そのポリマー組成物は、上述のポリマー組成物又はそのいずれかの特定の、若しくは特別な実施形態である。
[使用される材料]
ポリアミド1 相対粘度2.5を有するPA6
ポリアミド2 PA-6I/6T非晶質半芳香族ポリアミド、Tg 125℃
ポリアミド3 PA-6/6T,半結晶性半芳香族ポリアミド、Tm 205℃
ポリアミド4 PA-6/IPDTコポリマー
耐衝撃性改良剤 無水マレイン酸(MAH)グラフト化エテンコポリマー
核剤ミクロタルカム;中央粒径0.50マイクロメーター
熱安定剤A CuI/KI
熱安定剤B Irganox 1098
組成物の製造には、二軸スクリュー押出機が使用され、ポリアミド6コンパウンドの標準条件を適用しながら、押出機において最初に成分をドライブレンドし、次いで溶融混合した。
実験室規模のブロー成形機でブロー成形容器を製造した。本明細書において、円形オリフィスを通してポリマー組成物を溶融押出し成形し、それによって溶融ポリマーからパリソンが形成され、そのパリソンを加圧ガスによって膨張させ、金型を閉じ、端部分を食切ると同時に、金型キャビティに対して押し当てた。一方、膨張したパリソンを冷却し、凝固して、成形及び食切りされた容器が形成される。次いで、金型を開放し、成形及び食切りされた容器を金型から取り出した。第1シリーズの実験において、押出し成形時間Teは27秒であり、金型を閉じる時間Tmcは7秒であり、その結果、合計加工時間Te+Tmcは34秒となった。第2シリーズの実験において、押出し成形時間Teは14秒であり、金型を閉じる時間Tmcは1秒であり、その結果、合計加工時間Te+Tmcは15秒となった。
食切りラインの強度を以下の手法で試験した:最初に、食切りラインの部分をブロー成形容器から切断した。次いで、この部分を手で、又は万力で十分にブレンドし、それが破壊されたかどうか確認した。破壊が容易だった場合には、報告される結果は「破壊」であった。破壊が難しかった場合には、報告される結果は「破壊なし」であった。
Claims (29)
- 食切り継目ラインを含む燃料タンクライナー用のブロー成形プラスチック容器であって、タンクが、
a.-ラクタム、ジアミン及びジカルボン酸から誘導される反復単位、並びに任意選択的に連鎖停止剤若しくは分岐単位、又はその組み合わせからなるコポリアミド(A1);或いは
-ラクタムから誘導される反復単位を含む少なくとも1種類のポリアミドと、ジアミン及びジカルボン酸から誘導される反復単位を含む少なくとも1種類のポリアミドとを含む、少なくとも2種類のポリアミドのブレンド(A2);からなるポリアミド(A)であって、
ラクタム、ジアミン及びジカルボン酸の総モル量に対して、カプロラクタムから誘導される反復単位を75~97.5モル%、並びに芳香族環を有するモノマーから誘導される反復単位を1~12モル%含む、ポリアミド(A)と、
b.熱安定剤と、
c.耐衝撃性改良剤と、
を含むポリマー組成物で製造される、ブロー成形プラスチック容器。 - 前記熱安定剤が、一次酸化防止剤、二次酸化防止剤、及び金属ハロゲン化物;並びにその混合物又は組み合わせから選択される、請求項1に記載のブロー成形プラスチック容器。
- 前記熱安定剤が、金属ハロゲン化物安定剤を含む、請求項2に記載のブロー成形プラスチック容器。
- 前記熱安定剤(b)が、前記ポリマー組成物の総重量に対して、0.05~3重量%の量で存在する、請求項1~3のいずれか一項に記載のブロー成形プラスチック容器。
- 前記熱安定剤(b)が、前記ポリマー組成物の総重量に対して、0.1~2.5重量%の量で存在する、請求項4に記載のブロー成形プラスチック容器。
- 前記熱安定剤(b)が、前記ポリマー組成物の総重量に対して、0.1~2重量%の量で存在する、請求項4に記載のブロー成形プラスチック容器。
- 前記耐衝撃性改良剤(c)が、前記ポリマー組成物の総重量に対して、1~40重量%の量で存在する、請求項1~6のいずれか一項に記載のブロー成形プラスチック容器。
- 前記耐衝撃性改良剤(c)が、前記ポリマー組成物の総重量に対して、5~30重量%の量で存在する、請求項7に記載のブロー成形プラスチック容器。
- 前記ポリマー組成物が、前記ポリアミド組成物の総重量に対して、ニグロシン(d)を0.01~5重量%含む、請求項1~8のいずれか一項に記載のブロー成形プラスチック容器。
- 前記ポリマー組成物が、前記ポリアミド組成物の総重量に対して、ニグロシン(d)を0.1~3重量%含む、請求項9に記載のブロー成形プラスチック容器。
- (e)核剤を含む、請求項1~8のいずれか一項に記載のブロー成形プラスチック容器。
- ミクロタルカムを含む、請求項11に記載のブロー成形プラスチック容器。
- 核剤(e)が、0.001~3重量%の量で存在し、前記重量パーセンテージが前記ポリマー組成物の総重量に対するパーセンテージである、請求項7~10のいずれか一項に記載のブロー成形プラスチック容器。
- 核剤(e)が、0.01~1重量%の量で存在し、前記重量パーセンテージが前記ポリマー組成物の総重量に対するパーセンテージである、請求項13に記載のブロー成形プラスチック容器。
- 前記ポリアミドが、前記ポリアミド中のラクタム、ジアミン及びジカルボン酸の総モル量に対して1~10モル%の量で芳香族環を有するモノマーから誘導される反復単位を含む、請求項1~14のいずれか一項に記載のブロー成形プラスチック容器。
- 前記ポリアミドが、前記ポリアミド中のラクタム、ジアミン及びジカルボン酸の総モル量に対して2~8モル%の量で芳香族環を有するモノマーから誘導される反復単位を含む、請求項15に記載のブロー成形プラスチック容器。
- 前記ポリアミドが、非晶質半芳香族ポリアミド若しくは最大で250℃の融解温度を有する半結晶性半芳香族ポリアミドのいずれか、又はその組み合わせから選択される半芳香族ポリアミドを含む、請求項1~16のいずれか一項に記載のブロー成形プラスチック容器。
- 前記ポリマー組成物における前記ポリアミドが、最大で250℃の融解温度を有する、請求項1~17のいずれか一項に記載のブロー成形プラスチック容器。
- 前記ポリマー組成物における前記ポリアミドが、少なくとも200℃、最大で240℃の融解温度を有する、請求項18に記載のブロー成形プラスチック容器。
- 前記ポリマー組成物が、
(f)最大で20重量%の量の強化用繊維;又は
(g)最大で20重量%の量の無機充填剤;又は
(h)最大で20重量%の合計量の1種又は複数種の更なる添加剤;のいずれか、或いはその組み合わせを含み、
前記組み合わせの総量が、最大で30重量%であり、且つ前記重量パーセンテージが前記ポリマー組成物の総重量に対するパーセンテージである、請求項1~19のいずれか一項に記載のブロー成形プラスチック容器。 - 最大で10重量%の量の強化用繊維を含む、請求項20に記載のブロー成形プラスチック容器。
- 最大で10重量%の量の無機充填剤を含む、請求項20又は21に記載のブロー成形プラスチック容器。
- 最大で10重量%の量の1種又は複数種の更なる添加剤を含む、請求項20~22のいずれか一項に記載のブロー成形プラスチック容器。
- 前記組み合わせの総量が、最大で25重量%であり、且つ前記重量パーセンテージが前記ポリマー組成物の総重量に対するパーセンテージである、請求項20~23のいずれか一項に記載のブロー成形プラスチック容器。
- 前記組み合わせの総量が、最大で20重量%であり、且つ前記重量パーセンテージが前記ポリマー組成物の総重量に対するパーセンテージである、請求項24に記載のブロー成形プラスチック容器。
- 前記ポリアミドのブレンド(A2)は、3種以上のモノマーからなる脂肪族共重合ポリアミドを含まない、請求項1~25のいずれか一項に記載のブロー成形プラスチック容器。
- 押出し工程及び成形工程を含む、ブロー成形プラスチック容器を製造するための押出しブロー成形プロセスであって:
-ポリマー組成物のポリマー溶融物を押出し、それによって前記ポリマー溶融物から熱いパリソンが形成される工程;
-前記熱いパリソン周囲の金型を閉じる工程であって、一方で
・前記熱いパリソン内にガスを吹込み、それによって前記熱いパリソンが膨張し、それが冷却し、凝固するまで金型キャビティに対して押し当てて、膨張成形品を形成し、且つ
・前記膨張成形品から一部を食切り、それによって食切りプラスチック容器が形成される、工程;
を含み、前記ポリマー組成物が、請求項1~26のいずれか一項に記載のポリマー組成物である、押出しブロー成形プロセス。 - 前記押出し工程に必要とされる押出し時間Teと、前記成形工程に必要とされる金型を閉じる時間Tmcとの合計が、少なくとも5秒である、請求項27に記載のブロー成形プロセス。
- ライナーと、前記ライナー周囲の補強マントルと、を含む燃料タンクであって、前記ライナーが、請求項1~26のいずれか一項に記載のブロー成形プラスチック容器であり、且つ/又は請求項27若しくは28に記載のプロセスによって得られる、燃料タンク。
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