Patent ID: 7371455

Claim:
A laminate having a core layer and a skin layer on either side of the core layer, wherein the skin layer is formed of a polyester copolymer which consists of 2,6-naphthalene dicarboxylic acid or its lower alkyl ester, terephthalic acid or its lower alkyl ester, 1,4-cyclohexane dimethanol and ethylene glycol, wherein: an intermediate layer is disposed between the core layer and the skin layer, the core layer consists of an innermost layer formed of polyamide which is obtained by melt polymerization of a diamine component containing 70 mol % or more of metaxylylene diamine and a dicarboxylic acid component containing 70 mol % or more of adipic acid and an adhesive layer laminated on ether side of the innermost layer, and the intermediate layer is formed of a polymer alloy consisting of a thermoplastic polyester resin and a heat-resistant resin, which contains 50 to 65 wt % of the heat-resistant resin having an Izod impact test value of 80 J/m to 850 J/m when tested with a ⅛″ notch under conditions of 23° C. and a relative humidity of 50% and having a glass transition point of 140° C. to 250° C.