LIVING HINGE CREATION THROUGH EXTRUSION OF A THERMOFORMABLE PLASTIC SHEET

摘要

A bathing vessel is made of a sheet of layered materials, which include a first layer of polyurethane material, a second layer of polyurethane material attached to the first layer, a third layer of acrylonitrile butadiene styrene (ABS) material attached to the second layer, and a fourth layer of acrylic material attached to the third layer. A first narrowed portion about which the sheet bends is provided. The bend defines a first wall and a second wall in the sheet.