WO2021234265A1 - Structure multicouche a base de polyamide recycle - Google Patents
Structure multicouche a base de polyamide recycle Download PDFInfo
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- WO2021234265A1 WO2021234265A1 PCT/FR2021/050858 FR2021050858W WO2021234265A1 WO 2021234265 A1 WO2021234265 A1 WO 2021234265A1 FR 2021050858 W FR2021050858 W FR 2021050858W WO 2021234265 A1 WO2021234265 A1 WO 2021234265A1
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- 229920002647 polyamide Polymers 0.000 title claims abstract description 46
- 239000004952 Polyamide Substances 0.000 title claims abstract description 43
- 239000000203 mixture Substances 0.000 claims abstract description 144
- 229920006177 crystalline aliphatic polyamide Polymers 0.000 claims abstract description 88
- 239000004609 Impact Modifier Substances 0.000 claims abstract description 68
- 229920006659 PA12 Polymers 0.000 claims abstract description 47
- 239000012530 fluid Substances 0.000 claims abstract description 43
- 239000000463 material Substances 0.000 claims abstract description 42
- 229920000572 Nylon 6/12 Polymers 0.000 claims abstract description 34
- 229920006152 PA1010 Polymers 0.000 claims abstract description 23
- 239000003502 gasoline Substances 0.000 claims description 89
- 125000004432 carbon atom Chemical group C* 0.000 claims description 38
- 229910052757 nitrogen Inorganic materials 0.000 claims description 38
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 38
- 229920006114 semi-crystalline semi-aromatic polyamide Polymers 0.000 claims description 38
- 239000004014 plasticizer Substances 0.000 claims description 30
- 239000000654 additive Substances 0.000 claims description 28
- 230000001476 alcoholic effect Effects 0.000 claims description 27
- 239000000446 fuel Substances 0.000 claims description 27
- 239000003225 biodiesel Substances 0.000 claims description 26
- 125000001931 aliphatic group Chemical group 0.000 claims description 21
- 239000000470 constituent Substances 0.000 claims description 20
- 230000000996 additive effect Effects 0.000 claims description 19
- 229920006122 polyamide resin Polymers 0.000 claims description 19
- 125000003118 aryl group Chemical group 0.000 claims description 16
- 239000011230 binding agent Substances 0.000 claims description 15
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 239000003921 oil Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 7
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 6
- 239000004202 carbamide Substances 0.000 claims description 6
- 239000002826 coolant Substances 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000003570 air Substances 0.000 claims description 3
- 230000001747 exhibiting effect Effects 0.000 claims description 3
- 238000002425 crystallisation Methods 0.000 claims 1
- 230000008025 crystallization Effects 0.000 claims 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 1
- 239000010410 layer Substances 0.000 description 151
- 229920000571 Nylon 11 Polymers 0.000 description 73
- 239000003381 stabilizer Substances 0.000 description 32
- IPRJXAGUEGOFGG-UHFFFAOYSA-N N-butylbenzenesulfonamide Chemical compound CCCCNS(=O)(=O)C1=CC=CC=C1 IPRJXAGUEGOFGG-UHFFFAOYSA-N 0.000 description 30
- 101000576320 Homo sapiens Max-binding protein MNT Proteins 0.000 description 24
- 229920006121 Polyxylylene adipamide Polymers 0.000 description 24
- 150000004985 diamines Chemical class 0.000 description 23
- -1 ferrous metals Chemical class 0.000 description 23
- 229920006119 nylon 10T Polymers 0.000 description 22
- 229920006115 poly(dodecamethylene terephthalamide) Polymers 0.000 description 22
- 229920006128 poly(nonamethylene terephthalamide) Polymers 0.000 description 22
- 229920000098 polyolefin Polymers 0.000 description 22
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 21
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 20
- 229920001577 copolymer Polymers 0.000 description 20
- 229920006396 polyamide 1012 Polymers 0.000 description 20
- 238000006068 polycondensation reaction Methods 0.000 description 19
- 239000005977 Ethylene Substances 0.000 description 18
- 238000002844 melting Methods 0.000 description 14
- 230000008018 melting Effects 0.000 description 14
- 230000035939 shock Effects 0.000 description 13
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 12
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 12
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 12
- LWBHHRRTOZQPDM-UHFFFAOYSA-N undecanedioic acid Chemical compound OC(=O)CCCCCCCCCC(O)=O LWBHHRRTOZQPDM-UHFFFAOYSA-N 0.000 description 12
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 11
- 238000004064 recycling Methods 0.000 description 11
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 10
- 150000001413 amino acids Chemical class 0.000 description 10
- 238000001125 extrusion Methods 0.000 description 10
- 230000004927 fusion Effects 0.000 description 10
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 10
- 150000003951 lactams Chemical class 0.000 description 10
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 10
- TYFQFVWCELRYAO-UHFFFAOYSA-N suberic acid Chemical compound OC(=O)CCCCCCC(O)=O TYFQFVWCELRYAO-UHFFFAOYSA-N 0.000 description 10
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 9
- 239000004698 Polyethylene Substances 0.000 description 9
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 description 9
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 8
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 8
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 8
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 8
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- 230000032683 aging Effects 0.000 description 7
- 150000008064 anhydrides Chemical class 0.000 description 7
- 239000003054 catalyst Substances 0.000 description 7
- 229920006012 semi-aromatic polyamide Polymers 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 229920000305 Nylon 6,10 Polymers 0.000 description 6
- BTZVDPWKGXMQFW-UHFFFAOYSA-N Pentadecanedioic acid Chemical compound OC(=O)CCCCCCCCCCCCCC(O)=O BTZVDPWKGXMQFW-UHFFFAOYSA-N 0.000 description 6
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 6
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 6
- TVIDDXQYHWJXFK-UHFFFAOYSA-N dodecanedioic acid Chemical compound OC(=O)CCCCCCCCCCC(O)=O TVIDDXQYHWJXFK-UHFFFAOYSA-N 0.000 description 6
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 6
- QQHJDPROMQRDLA-UHFFFAOYSA-N hexadecanedioic acid Chemical compound OC(=O)CCCCCCCCCCCCCCC(O)=O QQHJDPROMQRDLA-UHFFFAOYSA-N 0.000 description 6
- BNJOQKFENDDGSC-UHFFFAOYSA-N octadecanedioic acid Chemical compound OC(=O)CCCCCCCCCCCCCCCCC(O)=O BNJOQKFENDDGSC-UHFFFAOYSA-N 0.000 description 6
- HQHCYKULIHKCEB-UHFFFAOYSA-N tetradecanedioic acid Chemical compound OC(=O)CCCCCCCCCCCCC(O)=O HQHCYKULIHKCEB-UHFFFAOYSA-N 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 5
- 239000001361 adipic acid Substances 0.000 description 5
- 235000011037 adipic acid Nutrition 0.000 description 5
- 125000000217 alkyl group Chemical group 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
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- 238000000227 grinding Methods 0.000 description 5
- PWSKHLMYTZNYKO-UHFFFAOYSA-N heptane-1,7-diamine Chemical compound NCCCCCCCN PWSKHLMYTZNYKO-UHFFFAOYSA-N 0.000 description 5
- 229920001519 homopolymer Polymers 0.000 description 5
- PWGJDPKCLMLPJW-UHFFFAOYSA-N 1,8-diaminooctane Chemical compound NCCCCCCCCN PWGJDPKCLMLPJW-UHFFFAOYSA-N 0.000 description 4
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- VSKJLJHPAFKHBX-UHFFFAOYSA-N 2-methylbuta-1,3-diene;styrene Chemical compound CC(=C)C=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 VSKJLJHPAFKHBX-UHFFFAOYSA-N 0.000 description 4
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- 229920006883 PAMXD6 Polymers 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- FDLQZKYLHJJBHD-UHFFFAOYSA-N [3-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=CC(CN)=C1 FDLQZKYLHJJBHD-UHFFFAOYSA-N 0.000 description 4
- ISKQADXMHQSTHK-UHFFFAOYSA-N [4-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=C(CN)C=C1 ISKQADXMHQSTHK-UHFFFAOYSA-N 0.000 description 4
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- YIMHRDBSVCPJOV-UHFFFAOYSA-N n'-(2-ethoxyphenyl)-n-(2-ethylphenyl)oxamide Chemical compound CCOC1=CC=CC=C1NC(=O)C(=O)NC1=CC=CC=C1CC YIMHRDBSVCPJOV-UHFFFAOYSA-N 0.000 description 4
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- QFGCFKJIPBRJGM-UHFFFAOYSA-N 12-[(2-methylpropan-2-yl)oxy]-12-oxododecanoic acid Chemical compound CC(C)(C)OC(=O)CCCCCCCCCCC(O)=O QFGCFKJIPBRJGM-UHFFFAOYSA-N 0.000 description 3
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- 101150107345 Rhag gene Proteins 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- 239000012963 UV stabilizer Substances 0.000 description 1
- 239000001089 [(2R)-oxolan-2-yl]methanol Substances 0.000 description 1
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- GTDPSWPPOUPBNX-UHFFFAOYSA-N ac1mqpva Chemical compound CC12C(=O)OC(=O)C1(C)C1(C)C2(C)C(=O)OC1=O GTDPSWPPOUPBNX-UHFFFAOYSA-N 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 229920003231 aliphatic polyamide Polymers 0.000 description 1
- 229910001508 alkali metal halide Inorganic materials 0.000 description 1
- 150000008045 alkali metal halides Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229960002684 aminocaproic acid Drugs 0.000 description 1
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 1
- QFNNDGVVMCZKEY-UHFFFAOYSA-N azacyclododecan-2-one Chemical compound O=C1CCCCCCCCCCN1 QFNNDGVVMCZKEY-UHFFFAOYSA-N 0.000 description 1
- 150000008331 benzenesulfonamides Chemical class 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
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- 230000015556 catabolic process Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- KBLWLMPSVYBVDK-UHFFFAOYSA-N cyclohexyl prop-2-enoate Chemical compound C=CC(=O)OC1CCCCC1 KBLWLMPSVYBVDK-UHFFFAOYSA-N 0.000 description 1
- YQLZOAVZWJBZSY-UHFFFAOYSA-N decane-1,10-diamine Chemical compound NCCCCCCCCCCN YQLZOAVZWJBZSY-UHFFFAOYSA-N 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001938 differential scanning calorimetry curve Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- LJOSESICVCVVCK-UHFFFAOYSA-N docosane-1,1-diamine Chemical compound CCCCCCCCCCCCCCCCCCCCCC(N)N LJOSESICVCVVCK-UHFFFAOYSA-N 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 1
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- 230000009477 glass transition Effects 0.000 description 1
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- 239000004615 ingredient Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
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- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 1
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- FCGASPQFBJKTRO-UHFFFAOYSA-N n-cyclohexyl-1-phenylmethanesulfonamide Chemical compound C1CCCCC1NS(=O)(=O)CC1=CC=CC=C1 FCGASPQFBJKTRO-UHFFFAOYSA-N 0.000 description 1
- OHPZPBNDOVQJMH-UHFFFAOYSA-N n-ethyl-4-methylbenzenesulfonamide Chemical compound CCNS(=O)(=O)C1=CC=C(C)C=C1 OHPZPBNDOVQJMH-UHFFFAOYSA-N 0.000 description 1
- RXOHFPCZGPKIRD-UHFFFAOYSA-N naphthalene-2,6-dicarboxylic acid Chemical compound C1=C(C(O)=O)C=CC2=CC(C(=O)O)=CC=C21 RXOHFPCZGPKIRD-UHFFFAOYSA-N 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- IJRVDOPVQJSPRP-UHFFFAOYSA-N octan-4-yl prop-2-enoate Chemical compound CCCCC(CCC)OC(=O)C=C IJRVDOPVQJSPRP-UHFFFAOYSA-N 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 150000002924 oxiranes Chemical class 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pentâ4âenâ2âone Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000004525 petroleum distillation Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920005638 polyethylene monopolymer Polymers 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229940124530 sulfonamide Drugs 0.000 description 1
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 1
- BSYVTEYKTMYBMK-UHFFFAOYSA-N tetrahydrofurfuryl alcohol Chemical compound OCC1CCCO1 BSYVTEYKTMYBMK-UHFFFAOYSA-N 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 239000010913 used oil Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
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- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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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
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K5/05—Alcohols; Metal alcoholates
- C08K5/057—Metal alcoholates
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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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- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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- C08L77/10—Polyamides derived from aromatically bound amino and carboxyl groups of amino-carboxylic acids or of polyamines and polycarboxylic acids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
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- B32B2597/00—Tubular articles, e.g. hoses, pipes
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L2207/20—Recycled plastic
Definitions
- ELV end-of-life motor vehicle
- a large quantity of vehicle parts are recoverable and recyclable, in the form of used spare parts or raw materials.
- Parts intended for reuse (headlights, indicators, engine, radiator, starter, hood, fenders, doors, etc.) are dismantled and stored for resale.
- Carcasses and non-recyclable parts are crushed for recovery or landfill.
- European Directive 2000/53 / EC relating to end-of-life vehicles has set a rate of reuse and recovery of 95% by weight per vehicle from 2015.
- the 95% reused and recovered are subject to:
- Energy recovery use of waste (oils, tires, plastics, etc.) as means of energy production, by direct incineration with or without other waste; Material recovery: Reuse or reuse: new use of a part which retains the same use and is not transformed, or Recycling: operation aimed at introducing materials from waste into the production cycle, as a total or partial replacement of a virgin material.
- a motor vehicle contains a large number of pipes, in particular pipes intended for transporting fluids such as air, oil (for example for cooling the automatic gearbox "TOC, Transmission Oil Coder), 'water, a urea solution, a glycol-based coolant, a fuel such as gasoline, in particular bio-gasoline or diesel, in particular bio-diesel, or hydrogen.
- fluids such as air, oil (for example for cooling the automatic gearbox "TOC, Transmission Oil Coder), 'water, a urea solution, a glycol-based coolant, a fuel such as gasoline, in particular bio-gasoline or diesel, in particular bio-diesel, or hydrogen.
- These pipes can be monolayer and / or multilayer tubular structures, in particular based on polyamide (s).
- polyamide polyamide
- the tubes especially under the engine cover, are placed in a severe thermo-oxidative environment due to the heat given off by the engine, which can typically reach 150 ° C and the presence of air and therefore oxygen.
- Each increase in temperature of 10 ° C typically results in a halving of the life of the tubes as well as the degradation of certain additives of said tubes such as stabilizers.
- a pipe for transporting a fuel for example a polyamide pipe which contains a plasticizer, has lost most of its plasticizer when it reaches the end of its life and the polyamide constituting it initially present is depolymerized and / or degraded and has lost most of its stabilizers, which prohibits its safe reuse.
- the present invention therefore relates to a multilayer tubular structure (MLT) intended for transporting automotive fluids, in particular air, oil (for example for cooling the automatic gearbox "TOC, Transmission Oil Cooler) , water, urea solution, glycol-based coolant, or fuel such as gasoline, especially alcoholic gasoline, bio-gasoline or diesel, in particular bio-diesel, or hydrogen, comprising at least three layers: at least one layer (1) consisting of a composition comprising at least 50% of polyamide resins consisting of at least a first polyamide resin predominantly comprising aliphatic units and at least one second resin comprising predominantly aromatic units, said composition consisting of at least 50% of recycled material originating from a multilayer tube which has been intended for the transport of automotive fluids, in particular as defined above, said tube consisting of a composition which mainly comprises at least one polyamide, at least one layer (2) consisting of a composition mainly comprising at least one semi-crystalline aliphatic polyamide and optionally at least one impact modifier, and when the layer (2) consists of
- a layer based on polyamide resins consisting of at least one first polyamide resin comprising predominantly aliphatic units and at least one second resin comprising predominantly aromatic units, and consisting of at least one less 50% of recycled material, in particular embedded between two polyamide-based layers and made of non-recycled material allowed the constitution of a multilayer tubular structure comprising at least three layers capable of transporting an automotive fluid, in particular air, oil, water, urea solution, glycol-based coolant, or a fuel such as gasoline, in particular bio-gasoline or diesel, in particular bio-diesel , or hydrogen, regardless of the type of fluid initially transported by the recycled multilayer pipe constituting the embedded layer.
- the present invention relates to a multilayer tubular structure (MLT) intended for transporting automotive fluids, in particular air, oil (for example for cooling the automatic gearbox "TOC , Transmission Oil Cooler), water, urea solution, glycol-based coolant, or fuel such as gasoline, especially alcoholic gasoline, bio-gasoline or diesel, in particular bio-diesel, or hydrogen, comprising at least three layers: at least one layer (1) consisting of a composition comprising at least 50% of polyamide resins consisting of 'at least one first polyamide resin predominantly comprising aliphatic units and at least one second resin predominantly comprising aromatic units, said composition consisting of at least 50% of recycled material originating from a multilayer tube which has been intended for the transport of automotive fluids, in particular as defined above, said tube consisting of a composition which mainly comprises: at least one polyamide, at least one layer (2) consisting of a composition comprising predominantly at least one semi-crystalline aliphatic polyamide and optionally at least one impact modifier, and when the layer (2) consists
- the single-layer and / or multi-layer tube having initially transported automobile fluids from which the recycled material originates is therefore a used tube which has already transported said fluid for at least several months, in particular several years.
- the single-layer and / or multi-layer tube that initially transported fluids is therefore to the exclusion of a virgin tube.
- fluid denotes a gas or a liquid used in the automobile, in particular air, oil, water, a urea solution, a glycol-based coolant, or a fuel such as gasoline, in particular alcoholic gasoline, bio-gasoline or diesel, in particular bio-diesel, or hydrogen.
- said fluid denotes fuels, in particular gasoline, in particular alcoholic gasoline, bio-gasoline or diesel, in particular bio diesel.
- gasoline denotes a mixture of hydrocarbons obtained from the distillation of petroleum to which additives or alcohols such as methanol and ethanol may be added, the alcohols possibly being the major components in certain cases.
- alcoholic gasoline refers to gasoline to which methanol or ethanol has been added. It also designates a gasoline of type E95 which does not contain any petroleum distillation product.
- polyamide based means at least 50% by weight of polyamide in the diaper.
- composition comprising predominantly at least one polyamide ...â means at least 50% by weight of said polyamide in the composition.
- said layer (2) consists of a composition mainly comprising at least one semi-crystalline aliphatic polyamide and at least one impact modifier in a proportion of 3 to 45% by weight relative to the total weight of the composition. .
- Layer (1) consists of a composition comprising at least 50% of polyamide resins consisting of at least one first polyamide resin comprising predominantly aliphatic units and at least one second resin comprising predominantly aromatic units, said composition being made up of at least 50% recycled material from a multilayer pipe intended for the transport of automotive fluids.
- polyamide denotes both a homopolyamide and a copolyamide.
- a first polyamide resin predominantly comprising aliphatic units means that said first resin comprises at least 50% aliphatic units.
- a second polyamide resin predominantly comprising aromatic units means that said first resin comprises at least 50% of aromatic units.
- said first polyamide resin predominantly comprising aliphatic units is a semi-crystalline polyamide.
- said first polyamide resin mainly comprising aliphatic units is a semi-crystalline aliphatic polyamide.
- said second resin comprising predominantly aromatic units is a semi-crystalline polyamide.
- said first polyamide resin mainly comprising aromatic units is a semi-aromatic semi-crystalline polyamide.
- said first polyamide resin predominantly comprising aliphatic units and said second resin comprising predominantly aromatic units are semi-crystalline polyamides.
- said first polyamide resin mainly comprising aliphatic units is a semi-crystalline aliphatic polyamide and said first resin polyamide predominantly comprising aromatic units is a semi-aromatic semi-crystalline polyamide.
- polyamides within the meaning of the invention throughout the description denotes polyamides which have a melting point (Tm) and an enthalpy of fusion DH> 25 J / g, in particular> 40 J / g, in particular> 45J / g, as well as a glass transition temperature (Tg) as determined by DSC according to ISO 11357-1: 2016 and ISO 11357-2 and 3: 2013, at a heating rate of 20K / min.
- Tm melting point
- Tg glass transition temperature
- Said at least one semi-crystalline aliphatic polyamide is obtained from the polycondensation of at least one lactam, or from the polycondensation of at least one amino acid, or from the polycondensation of at least one diamine Xa with at least one dicarboxylic acid Yb.
- said at least one lactam can be chosen from a C6 to C18 lactam, preferably C10 to C18, more preferably C10 to C12.
- a C6 to C12 lactam is especially caprolactam, decanolactam, undecanolactam, and lauryllactam.
- said at least one semi-crystalline aliphatic polyamide is obtained from the polycondensation of at least one lactam, it can therefore comprise a single lactam or several lactams.
- said at least one semi-crystalline aliphatic polyamide is obtained from the polycondensation of a single lactam and said lactam is chosen from lauryllactam and unecanolactam, advantageously lauryllactam.
- said at least one semi-crystalline aliphatic polyamide is obtained from the polycondensation of at least one amino acid
- said at least one amino acid can be chosen from a C6 to C18 amino acid, preferably C10 to C18, more preferably C10 to C12.
- a C6 to C12 amino acid is in particular 6-aminohexanoic acid, 9-aminononanoic acid, 10-aminodecanoic acid, 10-aminoundecanoic acid, 12-aminododecanoic acid and 11-aminoundecanoic acid as well as its derivatives, in particular N-heptyl-11-aminoundecanoic acid.
- said at least one semi-crystalline aliphatic polyamide is obtained from the polycondensation of at least one amino acid, it can therefore comprise a single amino acid or several amino acids.
- said semi-crystalline aliphatic polyamide is obtained from the polycondensation of a single amino acid and said amino acid is chosen from 11- acid.
- aminoundecanoic acid and 12-aminododecanoic acid advantageously 11-aminoundecanoic acid.
- said at least one semi-crystalline aliphatic polyamide is obtained from the polycondensation of at least one C4-C36, preferably C5-C18, preferably C5-C12, more preferably C10-C12 diamine Xa, with at least one diacid Yb at C4-C36, preferably C6-C18, preferably C6-C12, more preferably C10-C12, then said at least one diamine at Xa is an aliphatic diamine and said at least one diacid Yb is an aliphatic diacid.
- the diamine can be linear or branched.
- it is linear.
- Said at least one C4-C36 diamine Xa may in particular be chosen from 1, 4-butanediamine, 1, 5-pentamethylenediamine, 1, 6-hexamethylenediamine, 1, 7-heptamethylenediamine, 1, 8-octamethylenediamine, 1, 9-nonamethylÚdiamine, 1, 10- decamethylÚdiamine, 1, 11-undecamethylÚdiamine, 1, 12-dodecamethylÚdiamine, 1, 13-tridécamethylÚdiamine, 1, 14-tetradecamethylÚdiamine, 1, 16- hexadecamethylÚdiamine and 1 , 18-octadecamethylediamine, octadecenediamine, eicosanediamine, docosanediamine and diamines obtained from fatty acids.
- said at least one Xa diamine is C5-C18 and chosen from 1, 5-pentamethylenediamine, 1, 6-hexamethylenediamine, 1, 7-heptamethylenediamine, 1, 8-octamethylenediamine, 1, 9-nonamethylenediamine, 1, 10-decamethylediamine, 1, 11-undecamethylĂšdiamine, 1, 12-dodecamethylĂšdiamine, 1, 13-tridecamethylĂšdiamine, 1, 14-tetradecamethylĂšdiamine, 1, 16-hexadecamethylĂšdiamine and 1, 18-octadecamethylĂšdiamine.
- said at least one C5 to C12 diamine Xa is in particular chosen from 1, 5-pentamethylenediamine, 1, 6-hexamethylenediamine, 1, 7-heptamethylenediamine, 1, 8-octamethylenediamine, 1, 9- nonamethylĂšdiamine, 1, 10-decamethylĂšdiamine, 1, 11-undecamethylĂšdiamine, 1, 12-dodecamethylĂšdiamine.
- said at least one C6 to C12 diamine Xa is in particular chosen from 1, 6-hexamethylenediamine, 1, 7-heptamethylenediamine, 1, 8-octamethylenediamine, 1, 9-nonamethylenediamine, 1, 10- decamethylĂšdiamine, 1, 11- undecamethylĂšdiamine, 1, 12-dodecamethylĂšdiamine.
- the diamine Xa used is C10 to C12, in particular chosen from 1, 10-decamethylÚdiamine, 1, 11-undécamethylÚdiamine, 1, 12-dodecamethylÚdiamine.
- Said at least one C4 to C36 dicarboxylic acid Yb can be chosen from succinic acid, glutaric acid, adipic acid, suberic acid, azelaic acid, sebacic acid, undecanedioic acid, dodecanedioic acid, brassylic acid, tetradecanedioic acid, pentadecanedioic acid, hexadecanedioic acid, octadecanedioic acid, and diacids obtained from fatty acids .
- the diacid can be linear or branched.
- it is linear.
- said at least one dicarboxylic acid Yb is C6 to C18 and is chosen from adipic acid, suberic acid, azelaic acid, sebacic acid, undecanedioic acid, dodecanedioic acid, brassylic acid, tetradecanedioic acid, pentadecanedioic acid, hexadecanedioic acid, octadecanedioic acid.
- said at least one dicarboxylic acid Yb is C6 to C12 and is chosen from adipic acid, suberic acid, azelaic acid, sebacic acid, undecanedioic acid and dodecanedioic acid.
- said at least one dicarboxylic acid Yb is C10 to C12 and is chosen from sebacic acid, undecanedioic acid and dodecanedioic acid.
- said aliphatic semi-crystalline polyamide is obtained from the polycondensation of at least one diamine Xa with at least one dicarboxylic acid Yb, it can therefore comprise a single diamine or several diamines and a single dicarboxylic acid or several dicarboxylic acids.
- said semi-crystalline aliphatic polyamide is obtained from the polycondensation of a single diamine Xa with a single dicarboxylic acid Yb.
- Said at least one semi-crystalline semi-aromatic polyamide is obtained from the polycondensation of at least one diamine Xa as defined above, with at least one aromatic dicarboxylic acid or one diamine Xb with a dicarboxylic acid Yb such as defined above.
- the aromatic dicarboxylic acid is advantageously chosen from terephthalic acid (denoted T), isophthalic acid (denoted I) and 2,6 naphthalene dicarboxylic acid (denoted N) or their mixtures, in particular it is chosen from l terephthalic acid (denoted T), isophthalic acid (denoted I) or their mixtures.
- the diamine Xb is advantageously an arylamine, which can be chosen from meta-xylylenediamine (MXD, CAS No: 1477-55-0) or para-xylylenediamine (PXD, CAS No: 539-48-0) .
- MXD meta-xylylenediamine
- PXD para-xylylenediamine
- said semi-crystalline semi-aromatic polyamide is obtained from the polycondensation of at least one diamine Xa with at least one aromatic dicarboxylic acid, or of at least one diamine Xb with at least one dicarboxylic acid Yb it can therefore comprise a single diamine or several diamines and a single dicarboxylic acid or several dicarboxylic acids.
- said semi-crystalline aliphatic polyamide is obtained from the polycondensation of a single diamine Xa with a single aromatic dicarboxylic acid or from the polycondensation of a single diamine Xb with a single dicarboxylic acid Yb.
- said semi-crystalline semi-aromatic polyamide is obtained from the polycondensation of at least one diamine Xa with at least one dicarboxylic acid chosen from terephthalic acid and isophthalic acid, in particular terephthalic acid, or said Semi-crystalline semi-aromatic polyamide is obtained from the polycondensation of at least one diamine Xb with at least one dicarboxylic acid Yb.
- said at least one C6 to C12 diamine Xa is chosen from 1, 6-hexamethylenediamine, 1, 7-heptamethylenediamine, 1, 8-octamethylĂšdiamine, 1, 9-nonamethylĂšdiamine, 1, 10-decamethylenediamine, 1 , 11-undecamethylĂšdiamine, 1, 12-dodecamethylĂšdiamine and said at least dicarboxylic acid is an acid chosen from terephthalic acid and isophthalic acid, in particular terephthalic acid.
- said at least one diamine Xb is an arylamine chosen from meta-xylylenediamine (MXD, CAS No: 1477-55-0) or para-xylylenediamine (PXD, CAS No: 539-48-0) and led it at least one dicarboxylic acid Yb is C6 to C18 and is selected from adipic acid, suberic acid, azelaic acid, sebacic acid, undecanedioic acid, dodecanedioic acid, brassylic acid, tetradecanedioic acid, pentadecanedioic acid, hexadecanedioic acid, octadecanedioic acid.
- MXD meta-xylylenediamine
- PXD para-xylylenediamine
- said at least one dicarboxylic acid Yb is C6 to C12 and is chosen from adipic acid, suberic acid, azelaic acid, sebacic acid, undecanedioic acid and dodecanedioic acid.
- Each of these semi-aromatic polyamides can be copolymerized is a lactam or an amino acid to lead to structures such as PA11 / 9T, PA11 / 10T, PA11 / 12T, PA12 / 9T, PA12 / 10T and PA12 / 12T or PA11 / MXD6 , PA11 / MXD10, PA12 / MXD6, PA12 / MXD10.
- said composition of the layer (1) comprises at least 60% by weight, in particular at least 70% by weight, in particular at least 80% by weight, more particularly at least 90% by weight of polyamide resins consisting of at least a first polyamide resin comprising predominantly aliphatic units and at least one second resin mainly comprising aromatic units, relative to the total weight of said composition.
- Said composition of the layer (1) consists of at least 50% of recycled material from a multilayer pipe which has been intended for the transport of automotive fluids.
- the âat least one major polyamideâ of said composition corresponds in its entirety to what is called âat least 50% of recycled materialâ or that at least 50% by weight of all the constituents of the composition. are of recycled origin from multilayer pipe.
- the recycled material can come from a multilayer pipe, said multilayer pipes having been intended for the transport of automotive fluid.
- Said tube is therefore a used tube, that is to say that it has been used for at least one year for the transport of said fluid defined above.
- Said multilayer tube comprises at least one layer consisting of a composition comprising a semi-crystalline aliphatic polyamide and optionally impact modifiers and / or additives, and at least one layer comprising a mixture of semi-crystalline and semi-aromatic semi-aromatic aliphatic polyamide. -crystalline and optionally impact modifiers and / or additives. It can therefore also comprise other layers consisting of a thermoplastic polymer other than a semi-crystalline aliphatic polyamide or of a mixture of semi-crystalline and semi-aromatic semi-crystalline aliphatic polyamide, such as for example a polypropylene, a semi-aromatic polyamide or a polyethylene vinyl alcohol (EVOH).
- a thermoplastic polymer other than a semi-crystalline aliphatic polyamide or of a mixture of semi-crystalline and semi-aromatic semi-crystalline aliphatic polyamide, such as for example a polypropylene, a semi-aromatic polyamide or a polyethylene vinyl alcohol (EVOH).
- the multilayer pipe can also be a mixture of different types of multilayer pipe, provided that at least one of the layers of one of the types of multilayer pipe is made of a semi-crystalline aliphatic polyamide.
- Said multilayer pipe which was intended for transporting automobile fluid and which is therefore used can undergo several different treatments in order to be able to be recycled:
- the ground particles can be ground and recompounded, that is to say that after grinding, the ground particles are fed into an extruder, in particular of the co-rotating twin-screw type, or of the co-rotating twin-screw type.
- co-kneader (Buss), where they are remixed by fusion.
- the molten material comes out of the extruder in rods which are cooled and cut into granules;
- the ground particles can be ground and recompounded and reformulated, that is to say that after grinding, the ground particles are fed into an extruder, as defined above where they are remixed by melting with the addition of at least one compound. chosen from a semi-crystalline aliphatic polyamide, of recycled origin or not, of at least one impact modifier, a plasticizer, an additive and antistatic fillers.
- the molten material comes out of the extruder in rods which are cooled and cut into granules.
- the multilayer tube which was intended for transporting automotive fluid undergoes a washing and / or cleaning step before grinding.
- the crushed tube undergoes a washing and / or cleaning step after crushing.
- the multilayer tube which has been intended for the transport of fluid for an automobile undergoes a washing and / or cleaning step before grinding and is then crushed and it then optionally undergoes, before recompounding, a washing and / or cleaning step after grinding.
- the cleaning step can be carried out for example under vacuum.
- the polyamides rated A, B and C can be of recycled or non-recycled origin, provided that the composition of the layer (1) consists of at least 50% recycled material.
- the Tm of the predominantly aliphatic semi-crystalline polyamide of layer (1) is â 225 ° C, in particular â 200 ° C, as determined according to ISO 11357-3: 2013, at a heating rate of 20K / min .
- said composition of the layer (1) is devoid of plasticizer and / or impact modifier and said recycled material comes from a tube chosen from among a crushed tube, a crushed and recompounded tube and a crushed, recompounded tube. and reworded.
- said composition of the layer (1) comprises at least one compound chosen from plasticizer, an impact modifier and an additive, and said recycled material is chosen from a crushed tube, then recompounded and reformulated.
- the fluid transported by said multilayer tube is different from that of said multilayer tubular structure (MLT).
- said multilayer tubular structure may be intended to transport gasoline or even if the multilayer pipe has transported a fluid such as gasoline. 'alcoholic gasoline, said tubular structure (MLT) may be intended to transport diesel.
- the fluid transported by said multilayer tube is the same as that of said multilayer tubular structure (MLT).
- said tubular structure may be intended to transport gasoline provided that the gasoline of the multilayer pipe and of said multilayer tubular structure (MLT) or) the same, for example, alcoholic gasoline.
- the recycled material comes from a multilayer tube such as PA11 // PPA9T and PA12 // PPA9T or PA11 // MXD6 and PA12 // MXD6.
- said composition of the layer (1) comprises at least 60% by weight, in particular at least 70% by weight, in particular at least 80% by weight, in particular at least 90% by weight, more particularly in less 95% recycled material.
- said composition of the layer (1) consists of 100% by weight of recycled material.
- said tube which was intended for transporting fluid for an automobile is multilayered and simply crushed and the composition of the layer (1) resulting from said recycling consists of: at least 61% by weight, in particular 96% at 99% by weight, in particular from 96% to 98% by weight, of at least one semi-crystalline aliphatic polyamide denoted C having an average number of carbon atoms per nitrogen atom denoted Ce ranging from 6 to 18, advantageously from 8 to 12 and at least one semi-aromatic semi-crystalline polyamide; 0 to 2% of at least one plasticizer, 0 to 2% by weight of at least one additive, in particular a stabilizer; the sum of the constituents being equal to 100%.
- the semi-crystalline aliphatic polyamide denoted C is chosen from PA612, PA1012, PA1010, PA11 and PA12, in particular PA11 and the semi-aromatic semi-crystalline polyamide is chosen from PA9T, PA10T, PA12T, MXD6 and MXD10.
- said tube was intended for transporting fuel such as gasoline, in particular alcoholic gasoline, bio-gasoline or diesel, in particular bio-diesel.
- fuel such as gasoline, in particular alcoholic gasoline, bio-gasoline or diesel, in particular bio-diesel.
- the semi-crystalline aliphatic polyamide denoted C is chosen from PA612, PA1012, PA1010, PA11 and PA12, in particular PA11 and the semi-aromatic semi-crystalline polyamide is chosen from PA9T, PA10T, PA12T, MXD6 and MXD10 and said tube was intended for transporting fuel such as gasoline, in particular alcoholic gasoline, bio-gasoline or diesel, in particular bio-diesel.
- said tube which was intended for transporting fluid for an automobile is multilayered, crushed and recompounded and the composition of the layer (1) resulting from said recycling consists of: at least 61% by weight, in particular 96 % to 99% by weight, in particular from 96% to 98% by weight, of at least one semi-crystalline aliphatic polyamide denoted C having an average number of carbon atoms per nitrogen atom denoted Ce ranging from 6 to 18 , advantageously from 8 to 12, and at least one semi-aromatic semi-crystalline polyamide; 0 to 2% of at least one plasticizer, 0 to 2% by weight of at least one additive, in particular a stabilizer; the sum of the constituents being equal to 100%.
- the semi-crystalline aliphatic polyamide denoted C is chosen from PA612, PA1012, PA1010, PA11 and PA12, in particular PA11 and the semi-crystalline semi-aromatic polyamide is chosen from PA9T, PA10T, PA12T, MXD6 and MXD10.
- said tube was intended for transporting fuel such as gasoline, in particular alcoholic gasoline, bio-gasoline or diesel, in particular bio-diesel.
- the semi-crystalline aliphatic polyamide denoted C is chosen from PA612, PA1012, PA1010, PA11 and PA12, in particular PA11 and the semi-crystalline semi-aromatic polyamide is chosen from PA9T, PA10T, PA12T, MXD6 and MXD10 and said tube was intended for transporting fuel such as gasoline, in particular alcoholic gasoline, bio-gasoline or diesel, in particular bio-diesel.
- said tube which was intended for the transport of fluid for an automobile is multilayer, crushed, recompounded and reformulated and the composition of the layer (1) resulting from said recycling and reformulated consists of: at least 58.5% in weight of at least one semi-crystalline aliphatic polyamide denoted C having an average number of carbon atoms per nitrogen atom denoted Ce ranging from 6 to 18, advantageously from 8 to 12 and of at least one semi-aromatic polyamide semi-crystalline; from 6 to 14% of at least one plasticizer, in particular from 6 to 8%; from 0.5 to 1.5% by weight of at least one additive, in particular a stabilizer; the sum of the constituents being equal to 100%.
- the semi-crystalline aliphatic polyamide denoted C is chosen from PA612, PA1012, PA1010, PA11 and PA12, in particular PA11 and the semi-crystalline semi-aromatic polyamide is chosen from PA9T, PA10T, PA12T, MXD6 and MXD10.
- said tube was intended for transporting fuel such as gasoline, in particular alcoholic gasoline, bio-gasoline or diesel, in particular bio-diesel.
- the semi-crystalline aliphatic polyamide denoted C is chosen from PA612, PA1012, PA1010, PA11 and PA12, in particular PA11 and the semi-crystalline semi-aromatic polyamide is chosen from PA9T, PA10T, PA12T, MXD6 and MXD10 and said tube was intended for transporting fuel such as gasoline, in particular alcoholic gasoline, bio-gasoline or diesel, in particular bio-diesel.
- said tube which was intended for the transport of fluid for an automobile is multilayered, crushed, recompounded and reformulated and the composition of the layer (1) resulting from said recycling and reformulated consists of: at least 58% by weight of 'at least one semi-crystalline aliphatic polyamide denoted C having an average number of carbon atoms per nitrogen atom denoted Ce ranging from 6 to 18, advantageously from 8 to 12 and at least one semi-aromatic semi-aromatic polyamide. crystalline; from 6 to 14% of at least one plasticizer, in particular from 6 to 8%; from 1 to 2% by weight of at least one additive, in particular a stabilizer and a catalyst; the sum of the constituents being equal to 100%.
- the semi-crystalline aliphatic polyamide denoted C is chosen from PA612, PA1012, PA1010, PA11 and PA12, in particular PA11 and the semi-crystalline semi-aromatic polyamide is chosen from PA9T, PA10T, PA12T, MXD6 and MXD10.
- said tube was intended for transporting fuel such as gasoline, in particular alcoholic gasoline, bio-gasoline or diesel, in particular bio-diesel.
- the semi-crystalline aliphatic polyamide denoted C is chosen from PA612, PA1012, PA1010, PA11 and PA12, in particular PA11 and the semi-crystalline semi-aromatic polyamide is chosen from PA9T, PA10T, PA12T, MXD6 and MXD10 and said tube was intended for the transport of fuel such as gasoline, especially alcoholic gasoline, bio-gasoline or diesel, especially bio-diesel.
- the composition is degassed during the compounding, even more advantageously the degassing is located just after the melting zone, and before the zone for introducing a plasticizer such as BBSA or the like.
- the semi-crystalline aliphatic polyamide denoted C is chosen from PA612, PA1012, PA1010, PA11 and PA12, in particular PA11 and the semi-crystalline semi-aromatic polyamide is chosen from PA9T, PA10T, PA12T, MXD6 and MXD10.
- said tube was intended for transporting fuel such as gasoline, in particular alcoholic gasoline, bio-gasoline or diesel, in particular bio-diesel.
- said tube which was intended for transporting fluid for an automobile is multilayer, crushed, recompounded and reformulated and the composition of the layer (1) resulting from said recycling and reformulated consists of: at least 55% by weight, in particular from 55% to 99% by weight, in particular from 55% to 98% by weight, of at least one semi-crystalline aliphatic polyamide noted C having an average number of carbon atoms per nitrogen atom noted This included from 6 to 18, advantageously from 8 to 12 and at least one semi-aromatic semi-crystalline polyamide; from 0 to 45% by weight of at least one impact modifier, in particular from 1 to 45% by weight of at least one impact modifier, in particular from 2 to 45% by weight of at least one impact modifier, the sum of the constituents being equal to 100%.
- the semi-crystalline aliphatic polyamide denoted C is chosen from PA612, PA1012, PA1010, PA11 and PA12, in particular PA11 and the semi-crystalline semi-aromatic polyamide is chosen from PA9T, PA10T, PA12T, MXD6 and MXD10.
- the semi-crystalline aliphatic polyamide denoted C is chosen from PA612, PA1012, PA1010, PA11 and PA12, in particular PA11 and the semi-crystalline semi-aromatic polyamide is chosen from PA9T, PA10T, PA12T, MXD6 and MXD10 and said tube was intended for transporting fuel such as gasoline, in particular alcoholic gasoline, bio-gasoline or diesel, in particular bio-diesel.
- the semi-crystalline aliphatic polyamide denoted C is chosen from PA612, PA1012, PA1010, PA11 and PA12, in particular PA11 and the semi-aromatic semi-crystalline polyamide is chosen from PA9T, PA10T, PA12T, MXD6 and MXD10.
- the semi-crystalline aliphatic polyamide denoted C is chosen from PA612, PA1012, PA1010, PA11 and PA12, in particular PA11 and the semi-aromatic semi-crystalline polyamide is chosen from PA9T, PA10T, PA12T, MXD6 and MXD10 and said tube was intended for transporting fuel such as gasoline, in particular alcoholic gasoline, bio-gasoline or diesel, in particular bio-diesel.
- said tube which was intended for the transport of fluid for an automobile is multilayer, crushed, recompounded and reformulated and the composition of the layer (1) resulting from said recycling and reformulated consists of: at least 50% by weight of 'at least one semi-crystalline aliphatic polyamide denoted C having an average number of carbon atoms per nitrogen atom denoted Ce ranging from 6 to 18, advantageously from 8 to 12 and at least one semi-aromatic semi-aromatic polyamide.
- the semi-crystalline aliphatic polyamide denoted C is chosen from PA612, PA1012, PA1010, PA11 and PA12, in particular PA11 and the semi-aromatic semi-crystalline polyamide is chosen from PA9T, PA10T, PA12T, MXD6 and MXD10.
- said tube which was intended for the transport of fluid for an automobile is multilayer, crushed, recompounded and reformulated and the composition of the layer (1) resulting from said recycling and reformulated consists of: at least 50% by weight of 'at least one semi-crystalline aliphatic polyamide denoted C having an average number of carbon atoms per nitrogen atom denoted Ce ranging from 6 to 18, advantageously from 8 to 12 and at least one semi-aromatic semi-aromatic polyamide.
- the semi-crystalline aliphatic polyamide denoted C is chosen from PA612, PA1012, PA1010, PA11 and PA12, in particular PA11 and the semi-aromatic semi-crystalline polyamide is chosen from PA9T, PA10T, PA12T, MXD6 and MXD10.
- said tube was intended for transporting fuel such as gasoline, in particular alcoholic gasoline, bio-gasoline or diesel, in particular bio-diesel.
- the semi-crystalline aliphatic polyamide denoted C is chosen from PA612, PA1012, PA1010, PA11 and PA12, in particular PA11 and the semi-aromatic semi-crystalline polyamide is chosen from PA9T, PA10T, PA12T, MXD6 and MXD10 and said tube was intended for transporting fuel such as gasoline, in particular alcoholic gasoline, bio-gasoline or diesel, in particular bio-diesel.
- the impact modifier is advantageously constituted by a polymer having a flexural modulus of less than 100 MPa measured according to the ISO 178: 2010 standard, determined at 23 ° C with relative humidity: RH50%, and of Tg less than 0 ° C (measured according to standard 11357-2: 2013 at the inflection point of the DSC thermogram, at a heating rate of 20K / min), in particular a polyolefin.
- the polyolefin of the impact modifier can be functionalized or non-functionalized or be a mixture of at least one functionalized and / or at least one non-functionalized.
- the polyolefin has been designated by (B) and functionalized polyolefins (B1) and unfunctionalized polyolefins (B2) have been described below.
- An unfunctionalized polyolefin (B2) is conventionally a homopolymer or copolymer of alpha olefins or diolefins, such as, for example, ethylene, propylene, butene-1, octene-1, butadiene.
- alpha olefins or diolefins such as, for example, ethylene, propylene, butene-1, octene-1, butadiene.
- LDPE low density polyethylene
- HDPE high density polyethylene
- LLDPE linear low density polyethylene, or linear low density polyethylene
- VLDPE very low density polyethylene, or very low density polyethylene
- metallocene polyethylene metallocene polyethylene
- ethylene / alpha-olefin copolymers such as ethylene / propylene, EPR (abbreviation of ethylene-propylene-rubber) and ethylene / propylene / diene (EPDM).
- EPR abbreviation of ethylene-propylene-rubber
- EPDM ethylene / propylene / diene
- SEBS ethylene-butene / styrene
- SBS styrene / butadiene / styrene
- SIS isoprene / styrene
- SEPS styrene / ethylene-propylene / styrene
- the functionalized polyolefin (B1) can be a polymer of alpha olefins having reactive units (the functionalities); such reactive units are acid, anhydride or epoxy functions.
- the functionalities are acid, anhydride or epoxy functions.
- a functionalized polyolefin is for example a PE / EPR mixture, the weight ratio of which can vary widely, for example between 40/60 and 90/10, said mixture being co-grafted with an anhydride, in particular maleic anhydride, according to a degree of grafting, for example from 0.01 to 5% by weight.
- the functionalized polyolefin (B1) can be chosen from the following (co) polymers, grafted with maleic anhydride or glycidyl methacrylate, in which the degree of grafting is for example from 0.01 to 5% by weight:
- ethylene / alpha-olefin copolymers such as ethylene / propylene, EPR (abbreviation of ethylene-propylene-rubber) and ethylene / propylene / diene (EPDM).
- EPR abbreviation of ethylene-propylene-rubber
- EPDM ethylene / propylene / diene
- SEBS ethylene-butene / styrene
- SBS styrene / butadiene / styrene
- SIS isoprene / styrene
- SEPS styrene / ethylene-propylene / styrene
- alkyl (meth) acrylate copolymers containing up to 40% by weight of alkyl (meth) acrylate;
- the functionalized polyolefin (B1) can also be chosen from ethylene / propylene copolymers predominantly in propylene grafted with maleic anhydride then condensed with mono-amine polyamide (or a polyamide oligomer) (products described in EP-A-0342066) .
- the functionalized polyolefin (B1) can also be a co- or ter polymer of at least the following units: (1) ethylene, (2) alkyl (meth) acrylate or vinyl ester of saturated carboxylic acid and (3) anhydride such as maleic anhydride or (meth) acrylic acid or epoxy such as glycidyl (meth) acrylate.
- ethylene preferably represents at least 60% by weight and where the ter monomer (the function) represents for example from 0.1 to 10% by weight of the copolymer: - ethylene / (meth) acrylate / (meth) acrylic acid or maleic anhydride or glycidyl methacrylate copolymers;
- (meth) acrylic acid can be salified with Zn or Li.
- alkyl (meth) acrylate in (B1) or (B2) denotes methacrylates and acrylates of C1 to C8 alkyl, and may be chosen from methyl acrylate, ethyl acrylate , n-butyl acrylate, isobutyl acrylate, ethyl-2-hexyl acrylate, cyclohexyl acrylate, methyl methacrylate and ethyl methacrylate.
- the aforementioned polyolefins (B1) can also be crosslinked by any suitable process or agent (diepoxy, diacid, peroxide, etc.); the term functionalized polyolefin also includes mixtures of the abovementioned polyolefins with a difunctional reagent such as diacid, dianhydride, diepoxy, and the like. capable of reacting with these or mixtures of at least two functionalized polyolefins capable of reacting with each other.
- a difunctional reagent such as diacid, dianhydride, diepoxy, and the like.
- copolymers mentioned above, (B1) and (B2) can be copolymerized in a random or block fashion and have a linear or branched structure.
- the molecular weight, the MFI number, the density of these polyolefins can also vary to a large extent, which will be appreciated by those skilled in the art.
- MFI short for Melt Flow Index, is the melt flow index. It is measured according to standard ASTM 1238.
- the unfunctionalized polyolefins (B2) are chosen from homopolymers or copolymers of polypropylene and any homopolymer of ethylene or copolymer of ethylene and of a comonomer of higher alpha olefinic type. such as butene, hexene, octene or 4-methyl 1-Pentene.
- PPs high density PE, medium density PE, linear low density PE, low density PE, very low density PE.
- polyethylenes are known to those skilled in the art as being produced according to a âradicalâ process, according to a âZieglerâ type catalysis or, more recently, according to a so-called âmetalloceneâ catalysis.
- the functionalized polyolefins (B1) are chosen from any polymer comprising alpha olefinic units and units bearing polar reactive functions such as epoxy, carboxylic acid or carboxylic acid anhydride functions.
- polymers mention may be made of the ter polymers of ethylene, of alkyl acrylate and of maleic anhydride or of glycidyl methacrylate. such as LotaderÂź from the Applicant or polyolefins grafted with maleic anhydride such as OrevacÂź from the Applicant as well as ter polymers of ethylene, alkyl acrylate and (meth) acrylic acid. Mention may also be made of homopolymers or copolymers of polypropylene grafted with a carboxylic acid anhydride and then condensed with polyamides or mono-amino polyamide oligomers.
- the additives optionally used in the compositions of the invention are the conventional additives used in polyamides well known to those skilled in the art and are described in particular in EP 2098580.
- a catalyst for example they are selected from a catalyst, an antioxidant, a heat stabilizer, a UV absorber, a light stabilizer, a lubricant, an inorganic filler, a flame retardant, a nucleating agent and a dye, fibers. reinforcement, a wax and their mixtures.
- catalyst denotes a polycondensation catalyst such as an inorganic or organic acid.
- the proportion by weight of catalyst is from about 50 ppm to about 5000 ppm, in particular from about 100 to about 3000 ppm, relative to the total weight of the composition.
- the catalyst is chosen from phosphoric acid (H3PO4), phosphorous acid (H3PO3), hypophosphorous acid (H3PO2), or a mixture of these.
- the stabilizer can be a UV stabilizer, an organic stabilizer or more generally a combination of organic stabilizers, such as an antioxidant of the phenol type (for example of the type of that of irganoxÂź 245 or 1098 or 1010 of the company Ciba-BASF), an antioxidant of the phosphite type (for example irgafosÂź 126 and irgafosÂź 168 from the company Ciba-BASF) and even possibly other stabilizers such as a HALS, which means Hindered Amine Light Stabilizer or light stabilizer of the hindered amine type (for example TinuvinÂź 770 from the company Ciba-BASF), an anti-UV (for example TinuvinÂź 312 from the company Ciba) or a phosphorus-based stabilizer. It is also possible to use antioxidants of amine type such as NaugardÂź 445 from the company Crompton or else polyfunctional stabilizers such as NylostabÂź S-EED from the company
- This stabilizer can also be an inorganic stabilizer, such as a copper-based stabilizer.
- a copper-based stabilizer By way of example of such inorganic stabilizers, mention may be made of copper halides and acetates. Incidentally, we can possibly consider other metals like silver, but these are known to be less effective. These copper-based compounds are typically associated with alkali metal halides, in particular potassium.
- the plasticizers are, by way of example, the plasticizers are chosen from benzene sulfonamide derivatives, such as n-butyl benzene sulfonamide (BBSA); ethyl toluene sulfonamide or N-cyclohexyl toluene sulfonamide; esters of hydroxybenzoic acids, such as 2-ethylhexyl parahydroxybenzoate and 2-decyl-hexyl parahydroxybenzoate; esters or ethers of tetrahydrofurfuryl alcohol, such as oligoethyleneoxytetrahydrofurfurylalcohol; and esters of citric acid or hydroxy-malonic acid, such as oligoethyleneoxy malonate.
- BBSA n-butyl benzene sulfonamide
- esters of hydroxybenzoic acids such as 2-ethylhexyl parahydroxybenzoate and 2-decyl-he
- the additives when they are present in the composition are advantageously present from 1 to 20% by weight, in particular from 5 to 15% by weight, in particular from 5 to 12% by weight.
- antistatic charges are advantageously present from 1 to 20% by weight, in particular from 5 to 15% by weight, in particular from 5 to 12% by weight.
- the antistatic fillers are for example chosen from carbon black, graphite, carbon fibers, carbon nanotubes, in particular carbon black and carbon nanotubes.
- polysemi-crystalline polyamide and âaliphaticâ have the same definition as for layer (1).
- Said at least one semi-crystalline aliphatic polyamide is obtained in the same way as described above for layer (1).
- said layer (2) is devoid of impact modifier.
- the semi-crystalline aliphatic polyamide which is PA12 or PA612 or PA1010 is excluded from the composition which constitutes layer (2).
- said layer (2) comprises from 3 to 45% by weight of at least one impact modifier, in particular from 5 to 20% by weight of at least one impact modifier.
- the composition of said layer (2) comprises a PA11, a PA12 or a PA612 and from 3 to 45% by weight of an impact modifier, in particular from 5 to 20% by weight of an impact modifier.
- polysemi-crystalline polyamide and âaliphaticâ have the same definition as for layer (1) or layer (2).
- Said at least one semi-crystalline aliphatic polyamide is obtained in the same way as described above for the layer (1) and the layer (2).
- said layer (2â) is devoid of impact modifier.
- said layer (2') comprises from 3 to 45% by weight of at least one impact modifier, in particular from 5 to 20% by weight of at least one impact modifier.
- composition of said layer (2 ') comprises a PA11, a PA12 or a PA612 and from 3 to 45% by weight of at least one impact modifier, in particular from 5 to 20% by weight of at least one modifying shock.
- said layer (1) is located between a layer (2) and a layer (2 ').
- said layer (2 ') is the layer in contact with the transported fluid.
- said layer (2 ') is as defined for layer (2), and preferably layers (2) and (2 âČ) are identical.
- said layer (2 ') is as defined for layer (2) means that the compositions of layer (2) and of layer (2 âČ) may be the same or different.
- the composition of said layer (2) comprises a PA11, a PA12 or a PA612 and the recycled material comes from a multilayer tube consisting of a composition comprising a PA11 or a PA12 and a PA9T, PA10T, PA12T, PAMXD6 and PAMXD10, in particular the composition of the layer (1) consists of 100% recycled material.
- the composition of said layer (2) comprises a PA11, a PA12 or a PA612 and from 3 to 45% by weight of at least one impact modifier, in particular from 5 to 20% by weight of at least one modifier.
- impact and the recycled material comes from a multilayer tube consisting of a composition comprising a PA11 or a PA12 and a PA9T, PA10T, PA12T, PAMXD6 and PAMXD10, in particular the composition of the layer (1) consists of 100% of recycled material.
- the composition of said layer (2) comprises a PA11, a PA12 or a PA612 and from 3 to 45% by weight of at least one impact modifier, in particular from 5 to 20% by weight of at least one modifier.
- impact and the recycled material comes from a multilayer tube consisting of a composition comprising a PA11 or a PA12 and a PA9T, PA10T, PA12T, PAMXD6 and PAMXD10, in particular the composition of the layer (1) consists of 100% of recycled material and the composition of said layer (2 ') comprises a PA11, a PA12 or a PA612 and from 3 to 45% by weight of at least one impact modifier, in particular from 5 to 20% by weight of at least a shock modifier.
- compositions of the layer (2) and of the layer (2 ') are identical and therefore the layers (2) and (2') are obviously identical, that is to say that both the polyamide that the other constituents of the composition are identical in nature and proportion and that and that the thickness of the two layers (2) and (2 ') is identical.
- Layer (2 â) is then a layer (2).
- multilayer tubular structure In a first variant of the multilayer tubular structure (MLT), it consists of three layers (2) // (1) // (2 '), in particular (2) // (1) // (2 ).
- At least one binder layer (3) is present, said layer (3) being located between layer (2) and layer (1) and / or between layer (1) and layer ( 2 ').
- multilayer tubular structure In a second variant of the multilayer tubular structure (MLT), it consists of four layers (2) // binder (3) // (1) // (2 '), in particular (2) // binder (3) // (1) // (2). In a third variant of the multilayer tubular structure (MLT), it consists of four layers (2) // (1) // binder (3) // (2 '), in particular (2) // ( 1) // binder (3) // (2). In a fourth variant of the multilayer tubular structure (MLT), it consists of five layers (2) // binder (3) // (1) // binder (3) // (2 '), in particular (2) // binder (3) // (1) // binder (3) 11 (2).
- the two layers of binder (3) may be identical or different, in particular they are identical.
- At least one layer of EVOH is present, said layer (3) being located between the layer (1) and the layer (2 ').
- the multilayer tubular structure then consists of four layers (2) // (1) // EVOH // (2 â), in particular (2) // (1) // EVOH // (2).
- said layer (1) represents at least 10%, in particular at least 30%, in particular at least 50% of the total thickness of said multilayer tubular structure (MLT).
- said layer (1) represents at least 60%, in particular at least 70% of the total thickness of said multilayer tubular structure (MLT).
- said composition of said layer (1) is devoid of polyamides denoted A and B and said composition of said layer (2) comprises polyamides chosen from those denoted E, F and a mixture of these.
- said composition of said layer (1) comprises polyamides chosen from those denoted A, B and a mixture of these, and said composition of said layer (2) is devoid of polyamides denoted E and F.
- said composition of said layer (1) comprises polyamides chosen from those denoted A, B and a mixture thereof
- said composition of said layer (2) comprises polyamides selected from those denoted E, F and a mixture thereof.
- said composition of said layer (1) is devoid of polyamides denoted A and B and said composition of said layer (2) is devoid of polyamides denoted E and F.
- the layer (1) comes from a multilayer recycled tube.
- the layer (1) comes from a multilayer recycled tube and only said composition of said layer (1) comprises at least one impact modifier.
- the layer (1) comes from a multilayer recycled tube and the said composition of the said layer (1) as well as the said compositions of the layer (2) and of the layer (2 ') comprise at least one impact modifier.
- said multilayer tubular is intended for the transport of fluids chosen from a fuel such as gasoline, in particular alcoholic gasoline, bio-gasoline or diesel, in particular gasoline. bio-diesel.
- a fuel such as gasoline, in particular alcoholic gasoline, bio-gasoline or diesel, in particular gasoline. bio-diesel.
- the binder is described in particular in patents EP1452307 and EP1162061, EP1216826, EP0428833 and EP3299165.
- the binder layer is intended to be interposed between two layers which do not adhere to each other with difficulty.
- the binder can be for example, but without being limited to these, a composition based on 50% of copolyamide 6/12 (of ratio 70/30 by mass) of Mn 16000, and of 50% of copolyamide 6/12 ( of ratio 30/70 by mass) of Mn 16000, a composition based on PP (polypropylene) grafted with maleic anhydride, known under the name of Admer QF551A from the company Mitsui, a composition based on PA610 (from Mn 30,000, and as defined elsewhere) and 36% PA6 (from Mn 28000) and 1.2% organic stabilizers (consisting of 0.8% of Lowinox 44B25 phenol from Great Lakes, 0.2% of Irgafos 168 phosphite from the company Ciba, 0.2% anti-UV Tinuvin 312 from the company Ciba), a composition based on PA612 (of Mn 29000, and as defined elsewhere) and 36% of PA6 (of Mn 28000, and as defined elsewhere
- PA11 Polyamide 11 of Mn (number molecular mass) 29,000. The melting point is 190 ° C, its enthalpy of fusion is 56kJ / m2. The composition of this PA11 comprises 0.25% (+/- 0.05%) of H3PO4.
- PA12 Polyamide 12 of Mn (number molecular mass) 35000. The melting point is 178 ° C, its enthalpy of fusion is 54kJ / m2
- PA12-B Polyamide 12 of Mn (number molecular mass) 41000. The melting point is 178 ° C, its enthalpy of fusion is 54kJ / m2
- PA1012 Polyamide 1012 of Mn (number molecular mass) 27000. The melting point is 190 ° C, its enthalpy of fusion is 57kJ / m2
- PA612 Polyamide 612 of Mn (number molecular mass) 29000. The melting point is 218 ° C, its enthalpy of fusion is 67kJ / m2
- PA610 Polyamide 610 of Mn (number molecular mass) 30000. The melting point is 223 ° C, its enthalpy of fusion is 61kJ / m2
- PA6 Polyamide 6 of Mn (number molecular mass) 28000. The melting point is 220 ° C, its enthalpy of fusion is 68kJ / m2
- the melting temperature and the enthalpy of fusion were determined according to ISO 11357-3: 2013.
- stabilizer stabilizer consisting of 80% of Lowinox 44B25 phenol from Great Lakes, 20% of Irgafos 168 phosphite from Ciba BBSA: BBSA plasticizer (benzyl butyl sulfonamide),
- Imod generically designates a polyolefin or other impact modifier such as, among others, PEBA (polyether-block-amide), core-shells, silicones, etc.
- Imodl denotes an EPR functionalized with a reactive anhydride functional group (at 0.5-1% by mass), of MFI 9 (at 230 ° C., under) 10 kg, of the Exxellor VA1801 type from the company Exxon.
- Mod2 impact modifier of the ethylene / ethyl acrylate / anhydride type in 68.5 / 30/1, 5 mass ratio and MFI 6 at 190 ° C under 2.16 kg.
- lmod3 impact modifier of the ethylene / butyl acrylate / anhydride type in 79/18/3 mass ratio and MFI 5 at 190 ° C under 2.16 kg.
- compositions were used to manufacture the tubes according to the invention:
- compositions called "recyâ, ârecy2â and ârecy3" used for layer (1) of the tubes of the invention or counterexample tubes protocols for simulating an aged tube were used:
- Protocol A The tube is (artificially) aged according to an easily reproducible model protocol which consists of placing it in air (in the presence of oxygen) at 150 ° C for 96 hours (4 days), in order to thermo-oxidize it .
- This model aging is representative of the average thermo-oxidation that the tubes undergo in 10 years of service in a vehicle alongside a hot engine.
- protocol A is representative of a regrind gasoline tube. Specific protocols used during the (re) compounding of the aged tube.
- the crushed tube After aging, the crushed tube can in certain cases be recompounded according to two protocols:
- Protocol B the regrind tube is recompounded on a Coperion / Werner 40mm twin-screw extruder, 70kgh, 300rpm, setpoint 270 ° C, with a degassing of -100mmHg.
- Protocol B2 the regrind tube is recompounded on a Coperion / Werner 40mm twin-screw extruder, 70kgh, 300rpm, 270 ° C setpoint, with a strong degassing of -660mmHg.
- compositions used for the preparation of the tubes of the invention are as follows:
- PA11 PL PA11 + 7% BBSA + 1% stabilizer
- PA12PL PA12 + 12% BBSA + 1% stabilizer
- PA11 PL-recy tube of PA11 PL aged according to protocol A, regrind, to be then recycled.
- PA11 PL-recy2 tube of PA11 PL aged according to protocol A, regrind, recompounded according to protocol B2, with during this recompounding addition of 7% BBSA + 0.5% stab, to be then recycled
- PA11 PL-recy + 50% PA12PL-recy a 50/50 mixture of granules of PA11 PL-recy and PA12PL-recy.
- PA11 PL4 PA11 + 12% BBSA + 1% stabilizer
- PA12HIP-recy3 PA12HIPHL tube aged according to protocol A, regrind, recompounded according to protocol B, with during this recompounding addition of 6% imod1, 9% BBSA and 1% stab; being then intended to be recycled
- NX3 PA11 + imod2 10% + PA610 5% + PA6 5% + BBSA 4% + stabilizer 1%
- PA12HIPHL-recy tube of PA12HIPHL aged according to protocol A, regrind, to be then recycled
- PA12HIPHL-recy2 PA12HIPHL tube aged according to protocol A, regrind, recompounded according to protocol B, with during this recompounding addition of 10% BBSA + 0.5% stabilizer, to be then recycled
- PA12HIP-recy3 PA12HIPHL tube aged according to protocol A, regrind, recompounded according to protocol B, with during this recompounding addition of 6% imod1, 9% BBSA and 1% stab; being then intended to be recycled
- MLT-cx11-recy + 20% MLTcx31-recy is a blend of 80% MLT-cx11-recy and 20% MLT-cx31-recy
- MLT-cx31-recy tube of MLT (PA12HI2 // PA11-recyNX3 // PPA9T 15/60/25%) aged according to protocol A, regrind, recompounded according to protocol B, to be then recycled
- compositions are manufactured by conventional compounding in a Coperion 40 type co-rotating twin-screw extruder, at 300rpm, at 270 ° C (or at 300 ° C when the ingredients have a melting point above 260 ° C).
- Multilayer pipes of the invention are Multilayer pipes of the invention.
- Multilayer pipes are produced by coextrusion.
- a Maillefer industrial multilayer extrusion line is used, equipped with 5 extruders, connected to a multilayer extrusion head with spiral mandrels.
- the extrusion line comprises: a die-punch assembly, located at the end of the coextrusion head; the internal diameter of the die and the external diameter of the punch are chosen according to the structure to be produced and the materials of which it is made, as well as the dimensions of the tube and the line speed; a vacuum tank with an adjustable vacuum level. In this tank circulates water generally maintained at 20 ° C, in which is immersed a gauge allowing the tube to conform to its final dimensions.
- the diameter of the gauge is adapted to the dimensions of the tube to be produced, typically 8.5 to 10 mm for a tube with an external diameter of 8 mm and a thickness of 1 mm; a succession of cooling tanks in which water is maintained at around 20 ° C, allowing the tube to be cooled along the path from the head to the draw bench; a diameter measurer; a draw bench.
- the 5 extruder configuration is used to make tubes ranging from 2 layers to 5 layers (and also single layer tubes). In the case of structures with a number of layers less than 5, several extruders are then supplied with the same material.
- the tubes which meet the characteristics described in the present patent application, were taken, after stabilization of the extrusion parameters, the dimensions of the tubes concerned no longer changing over time.
- the diameter is controlled by a laser diameter measurer installed at the end of the line.
- the line speed is typically 20m / min. It generally varies between 5 and 100m / min.
- the screw speed of extruders depends on the thickness of the layer and the diameter of the screw as is known to those skilled in the art.
- Flex. designates the flexural modulus measured according to IS0178 at 23 ° C on a tube conditioned at equilibrium in a climate of 50% humidity and at 23 ° C
- Shock refers to the VW-40 ° C type shock, VW standard TL524352010
- shock performance that can be qualified as "very badâ, which corresponds to> 75%
- Old. it is about durability, in other words it indicates the resistance of the tube to oxidative aging in hot air.
- the tube is aged in air at 150 ° C, then it is shocked with a shock according to DIN 73378, this shock being carried out at -40 ° C, we indicates the half-life (in hours) which corresponds to the time after which 50% of the tubes tested break. A qualitative comment accompanies this value.
- thermo-oxidative aging resistance to thermo-oxidative aging
- thermo-oxidative aging resistance to thermo-oxidative aging
- thermo-oxidative aging resistance to thermo-oxidative aging
- the value given relates to the weakest interface, that is to say the least adherent of the multilayer, where there is therefore the greatest risk of detachment.
- the peeling is carried out at the interface by subjecting one of the parts to a traction at an angle of 90 ° and at a speed of 50 mm / min according to the following method.
- a strip of tube 9mm wide is taken by cutting. This strip is therefore in the shape of a tile and still has all the layers of the original tube.
- the strip, and therefore the interface is for its part maintained at 90 degrees with respect to the direction of traction.
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- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
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- General Engineering & Computer Science (AREA)
- Laminated Bodies (AREA)
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Abstract
Description
Claims
Priority Applications (5)
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JP2022570574A JP2023526452A (ja) | 2020-05-19 | 2021-05-18 | ćçăăȘăąăăăăăŒăčăšăăć€ć±€æ§é äœ |
CN202180036393.XA CN115667384A (zh) | 2020-05-19 | 2021-05-18 | ćșäșćçèé °èșçć€ć±ç»æäœ |
US17/999,132 US20230193025A1 (en) | 2020-05-19 | 2021-05-18 | Multilayer structure based on recycled polyamide |
EP21732470.6A EP4153671A1 (fr) | 2020-05-19 | 2021-05-18 | Structure multicouche a base de polyamide recycle |
KR1020227043208A KR20230013047A (ko) | 2020-05-19 | 2021-05-18 | ìŹíì© íŽëŠŹì믞ëì êž°ìŽí ë€ìž” ê”ŹìĄ°ëŹŒ |
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FR2005007A FR3110584B1 (fr) | 2020-05-19 | 2020-05-19 | Structure multicouche a base de polyamide recycle |
FR2005007 | 2020-05-19 |
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WO2021234265A1 true WO2021234265A1 (fr) | 2021-11-25 |
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PCT/FR2021/050858 WO2021234265A1 (fr) | 2020-05-19 | 2021-05-18 | Structure multicouche a base de polyamide recycle |
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US (1) | US20230193025A1 (fr) |
EP (1) | EP4153671A1 (fr) |
JP (1) | JP2023526452A (fr) |
KR (1) | KR20230013047A (fr) |
CN (1) | CN115667384A (fr) |
FR (1) | FR3110584B1 (fr) |
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FR3140087A1 (fr) * | 2022-09-23 | 2024-03-29 | Arkema France | Composition de polyamides préparée à partir de poudre de polyamides à recycler |
FR3141944A1 (fr) * | 2022-11-10 | 2024-05-17 | Arkema France | Compositions de moulage pour lâinjection comprenant des polyamides recycles issus dâexploitation des gisements de petrole ou de gaz, sous la mer ou terrestre. |
FR3141943A1 (fr) * | 2022-11-10 | 2024-05-17 | Arkema France | Compositions pour lâextrusion comprenant des polyamides recycles issus dâexploitation des gisements de petrole ou de gaz, sous la mer ou terrestre. |
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EP3069876A1 (fr) * | 2015-03-17 | 2016-09-21 | Evonik Degussa GmbH | Composite multicouches comprenant une couche en polyamide partiellement aromatique |
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2020
- 2020-05-19 FR FR2005007A patent/FR3110584B1/fr active Active
-
2021
- 2021-05-18 EP EP21732470.6A patent/EP4153671A1/fr active Pending
- 2021-05-18 KR KR1020227043208A patent/KR20230013047A/ko active Pending
- 2021-05-18 WO PCT/FR2021/050858 patent/WO2021234265A1/fr unknown
- 2021-05-18 US US17/999,132 patent/US20230193025A1/en active Pending
- 2021-05-18 CN CN202180036393.XA patent/CN115667384A/zh active Pending
- 2021-05-18 JP JP2022570574A patent/JP2023526452A/ja active Pending
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US20040265527A1 (en) * | 2000-12-21 | 2004-12-30 | Degusa Ag | Composite having two or more layers, including an EVOH layer |
JP2003042351A (ja) * | 2001-07-25 | 2003-02-13 | Toyoda Gosei Co Ltd | ć€ć±€çźĄç¶äœăźăȘă”ă€ăŻă«æčæł |
EP1452307A1 (fr) | 2003-02-28 | 2004-09-01 | EMS-Chemie AG | Laminé thermoplastique et multi-couche sous forme de corps creux |
EP1741549A1 (fr) * | 2004-04-27 | 2007-01-10 | Ube Industries, Ltd. | Tuyau multicouches pour transporter des produits chimiques à forte température et/ou du gaz |
EP2098580A1 (fr) | 2008-03-03 | 2009-09-09 | Arkema France | Composition adhésive et structure comprenant au moins une couche de ladite composition. |
EP3299165A1 (fr) | 2016-09-21 | 2018-03-28 | Evonik Degussa GmbH | Corps creux multicouches tres resistant au lavage |
Also Published As
Publication number | Publication date |
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JP2023526452A (ja) | 2023-06-21 |
CN115667384A (zh) | 2023-01-31 |
EP4153671A1 (fr) | 2023-03-29 |
US20230193025A1 (en) | 2023-06-22 |
KR20230013047A (ko) | 2023-01-26 |
FR3110584A1 (fr) | 2021-11-26 |
FR3110584B1 (fr) | 2025-01-17 |
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