TRANSPARENT POLYESTER SHEET

摘要

PURPOSE: A transparent polyester sheet is provided to use for producing various containers with enhanced thermal molding performance by being prevented from drooping during a vacuum thermal molding process. CONSTITUTION: To produce a transparent polyester sheet, a homopolymer, a polyester transposing the part of a terephthalic acid element to a decarboxylic acid element or a copolymerized polyester transposing an ethylene glycol element to a glycol element are used. A polyester sheet drawn by 101 to 110% is produced without a thermal fixing process so the seat is vertically pulled inside a vacuum heat molder and prevented from drooping. Furthermore, the polyester sheet is used for producing various containers without thickness variation.