A multi-layer structure excellent in the barrier properties against alcohol gasoline, particularly hydrocarbon components, and also excellent in the interlayer adhesion, low-temperature impact resistance, heat resistance and chemical resistance is provided. The stractive is a multi-layer structure c
A multi-layer structure excellent in the barrier properties against alcohol gasoline, particularly hydrocarbon components, and also excellent in the interlayer adhesion, low-temperature impact resistance, heat resistance and chemical resistance is provided. The stractive is a multi-layer structure comprising two or more layers including at least a layer (a) comprising (A) nylon 11 and/or nylon 12 and a layer (b) comprising (B) a polyamide resin (nylon 9T) consisting of a dicarboxylic acid component and a-diamine component, with 60 to 100 mol % of the dicarboxylic acid component being a terephthalic acid and 60 to 100 mol % of the diamine component being a diamine component selected from 1,9-nonanediamine and 2-methyl-1,8-octanediamine, and preferably further including a layer (c) comprising (A) nylon 11 and/or nylon 12 or (C) nylon 6.
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The invention claimed is: 1. A multi-layer structure comprising two or more layers including at least a layer (a) comprising (A) nylon 11 and/or nylon 12, and a layer (b) comprising (B) a polyamide resin (nylon 9T) consisting of a dicarboxylic acid component and a diamine component, with 60 to 100
The invention claimed is: 1. A multi-layer structure comprising two or more layers including at least a layer (a) comprising (A) nylon 11 and/or nylon 12, and a layer (b) comprising (B) a polyamide resin (nylon 9T) consisting of a dicarboxylic acid component and a diamine component, with 60 to 100 mol % of the dicarboxylic acid component being a terephthalic acid and 60 to 100 mol % of the diamine component being a diamine component selected from 1,9-nonanediamine and 2-methyl-1,8-octanediamine, wherein said layer (a) and said layer (b) directly contact and are bonded to each other. 2. The multi-layer structure as claimed in claim 1, wherein the layer (b) further comprises at least one additive selected from the group consisting of an antioxidant, a heat stabilizer, an ultraviolet absorbent, a light stabilizer, a lubricant, an inorganic filler, an antistatic agent, a flame retardant, a crystallization accelerator, a plasticizer, a colorant and an impact resistance improver. 3. A multi-layer structure comprising three or more layers including at least a layer (a) comprising (A) nylon 11 and/or nylon 12, a layer (b) comprising (B) a polyamide resin (nylon 9T) consisting of a dicarboxylic acid component and a diamine component, with 60 to 100 mol % of the dicarboxylic acid component being a terephthalic acid and 60 to 100 mol % of the diamine component being a diamine component selected from 1,9-nonanediamine and 2-methyl-1,8-octanediamine, and a layer (c) comprising (A) nylon 11 and/or nylon 12 or (C) nylon 6, wherein said layer (a) and said layer (b) directly contact and are bonded to each other. 4. The multi-layer structure as claimed in claim 3, wherein said layer (c) comprising (A) nylon 11 and/or nylon 12 or (C) nylon 6 is the innermost layer. 5. The multi-layer structure as claimed in claim 3, wherein said layer (b) comprising (B) nylon 9T is an intermediate layer. 6. The multi-layer structure as claimed in claim 1 or 3, wherein said layer (a) comprising (A) nylon 11 and/or nylon 12 is the outermost layer. 7. The multi-layer structure as claimed in claim 1 or 3, wherein the innermost layer has electrical conductivity. 8. The multi-layer structure as claimed in claim 1 or 3, wherein said each layers are co-extruded layers. 9. A shaped article comprising the multi-layer structure claimed in claims 1 to 3, which is selected from the group consisting of a film, a hose, a tube, a bottle and a tank. 10. The multi-layer structure according to claim 1 or 3, which does not comprise a metal layer. 11. The multi-layer structure as claimed in claim 1 or 3, wherein the layer (b) further comprises at least one aliphatic diamine selected from the group consisting of ethylenediamine, propylenediamine, 1,4-butanediamine, 1,6-hexanediamine, 1,8-octanediamine, 1,10-decanediamine, 1,12-dodecanediamine, 3-methyl-1, 5-pentanediamine, 2,2,4-trimethyl-1,6-hexanediamine, 2,4,4-trimethyl-1,6-hexanediamine and 5-methyl-1,9-nonanediamine; alicyclic diamines such as cyclohexanediamine, methylcyclohexanediamine and isophoronediamine; aromatic diamines such as p-phenylenediamine, m-phenylenediamine, p-xylenediamine, m-xylenediamine, 4,4'-diaminodiphenylmethane, 4,4'-diaminodiphenylsulfone, and 4,4'-diaminodiphenyl ether. 12. The multi-layer structure as claimed in claim 1 or 3, wherein the layer (b) further comprises at least one other polyamide resin or thermoplastic resin. 13. The multi-layer structure as claimed in claim 1 or 3, wherein the nylon 9T further comprises a terminal blocking agent. 14. The multi-layer structure as claimed in claim 13, wherein the terminal blocking agent is at least one of monocarboxylic acids and monoamines. 15. The multi-layer structure as claimed in claim 14, wherein the monocarboxylic acids are selected from the group consisting of aliphatic monocarboxylic acids, alicyclic monocarboxylic acids, aromatic monocarboxylic acids and mixtures thereof. 16. The multi-layer structure as claimed in claim 14, wherein the monoamine is selected from the group consisting of aliphatic monoamines, alicyclic monoamines, aromatic amines and mixtures thereof. 17. A multi-layer structure consisting of a layer (a) comprising (A) nylon 11 and/or nylon 12, and a layer (b) comprising (B) a polyamide resin (nylon 9T) consisting of a dicarboxylic acid component and a diamine component, with 60 to 100 mol % of the dicarboxylic acid component being a terephthalic acid and 60 to 100 mol % of the diamine component being a diamine component selected from 1,9-nonanediamine and 2-metyl-1,8-octanediamine, wherein said layer (a) and said layer (b) are directly contacted and bonded with each other. 18. A multi-layer structure consisting of two or more polymer layers, said polymer layers comprising a layer (a) comprising (A) nylon 11 and/or nylon 12, and a layer (b) comprising (B) a polyamide resin (nylon 9T) consisting of a dicarboxylic acid component and a diamine component, with 60 to 100 mol % of the dicarboxylic acid component being a terephthalic acid and 60 to 100 mol % of the diamine component being a diamine component selected from 1,9-nonanediamine and 2-metyl-1,8-octanediamine. 19. A multi-layer structure consisting of three or more polymer layers, said polymer layers comprising a layer (a) comprising (A) nylon 11 and/or nylon 12, a layer (b) comprising (B) a polyamide resin (nylon 9T) consisting of a dicarboxylic acid component and a diamine component, with 60 to 100 mol % of the dicarboxylic acid component being a terephthalic acid and 60 to 100 mol % of the diamine component being a diamine component selected from 1,9-nonanediamine and 2-metyl-1,8-octanediamine, and a layer (c) comprising (A) nylon 11 and/or nylon 12 or (C) nylon 6. 20. The multi-layer structure according to claim 18 or 19, wherein said layer (a) is the outermost layer. 21. A multi-layer structure consisting of a layer (a) comprising (A) nylon 11 and/or nylon 12, a layer (b) comprising (B) a polyamide resin (nylon 9T) consisting of a dicarboxylic acid component and a diamine component, with 60 to 100 mol % of the dicarboxylic acid component being a terephthalic acid and 60 to 100 mol % of the diamine component being a diamine component selected from 1,9-nonandiamine and 2-metyl-1,8-octanediamine, and one or more thermoplastic resin layers. 22. A multi-layer structure consisting of a layer (a) comprising (A) nylon 11 and/or nylon 12, a layer (b) comprising (B) a polyamide resin (nylon 9T) consisting of a dicarboxylic acid component and a diamine component, with 60 to 100 mol % of the dicarboxylic acid component being a terephthalic acid and 60 to 100 mol % of the diamine component being a diamine component selected from 1,9-nonandiamine and 2-metyl-1,8-octanediamine, a layer (c) comprising (A) nylon 11 and/or nylon 12 or (C) nylon 6, and one or more thermoplastic resin layers. 23. An automobile fuel pipe comprising two or more layers including at least a layer (a) comprising (A) nylon 11 and/or nylon 12, and a layer (b) comprising (B) a polyamide resin (nylon 9T) consisting of a dicarboxylic acid component and a diamine component, with 60 to 100 mol % of the dicarboxylic acid component being a terephthalic acid and 60 to 100 mol % of the diamine component being a diamine component selected from 1,9-nonanediamine and 2-metyl-1,8-octanediamine, wherein said layer (a) and said layer (b) are directly contacted and bonded with each other. 24. An automobile fuel pipe comprising three or more layers including at least a layer (a) comprising (A) nylon 11 and/or nylon 12, and a layer (b) comprising (B) a polyamide resin (nylon 9T) consisting of a dicarboxylic acid component and a diamine component, with 60 to 100 mol % of the dicarboxylic acid component being a terephthalic acid and 60 to 100 mol % of the diamine component being a diamine component selected from 1,9-nonanediamine and 2-metyl-1,8-octanediamine, and a layer (c) comprising (A) nylon 11 and/or nylon 12 or (C) nylon 6, wherein said layer (a) and said layer (b) are directly contacted and bonded with each other.
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이 특허에 인용된 특허 (1)
Oka Hideaki,JPX ; Kuki Toru,JPX ; Tamura Kozo,JPX, Polyamide composition.
Bersted, Bruce H.; Doty, James K.; De Canniere, Jean; Dehennau, Claude; Warkoski, Gregory; Bushelman, Corinne; Billiet, Johan, Method for making a polyamide hollow body.
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