| abstract |
PROBLEM TO BE SOLVED: To provide a thermoplastic resin multilayer tubular body excellent in heat resistance, hot water resistance, chemical resistance such as zinc chloride and calcium chloride, moldability and interlayer adhesion. In particular, the present invention can be applied to a cooling system pipe for an automobile and a heat medium circulation pipe such as a heating system for snow melting or heating. SOLUTION: The thermoplastic resin multilayer tubular body of the present invention comprises: (A) 0.1 to 70 parts by weight of an epoxy group-containing compound with respect to 100 parts by weight of a polyphenylene sulfide resin, (C) 10 to 70 parts by weight of a polyamide resin, and (D) A polyphenylene sulfide resin composition containing 0 to 70 parts by weight of an elastomer containing no epoxy group is used as at least one layer on the inner layer side, and (F) fibrous and / or non-fibrous filling is added to 100 parts by weight of (E) polyamide resin. A polyamide resin or a polyamide resin composition containing 0 to 100 parts by weight of a material is used as at least one layer on the outer layer side. |