DEEP DRAWN THERMOFORMING POLYESTER CONTAINER

摘要

PROBLEM TO BE SOLVED: To provide a deep drawn container made of polyester multilayer sheet, having improved transparency, strength and irregular section. SOLUTION: The deep drawn container is made of polyester sheet of a three- layer structure and provided with 0.8 or more of a ratio of a depth to an opening diameter. A thickness of the sheet is 1 mm or more. Glass transition temperature of a skin layer is 90 deg.C or higher. The skin layer is made of polyester resin composition having a limiting viscosity of 0.6 or more. A core layer is made of polyethylene terephthalate resin having a limiting viscosity of 0.6 or more. The skin layer of 10 wt.% or more in the polyester container.