Laminate and container made of the same

摘要

A laminate obtained by laminating a resin composed chiefly of a polyester on a base material, said resin layer having a melt viscosity ratio (R) defined by the following formula (1), R= eta 12.2/ eta 1216 (1) wherein eta 12.2 is a melt viscosity at an extrusion temperature of the polyester at a shearing rate of 12.2 sec-1, and eta 1216 is a melt viscosity at an extrusion temperature of the polyester at a shearing rate of 1216 sec-1, of not smaller than 2.0 at a melt extrusion temperature of the polyester, and having eta 1216 of not smaller than 500 poises, and said resin layer being further quickly quenched after it is melt-extruded.