| 摘要 |
PURPOSE:To provide a sheet which is made from a specific polyester resin compsn., has specified thickness and elongation at break, and is excellent in clarity, stiffness, and thermoformability and in breaking propertie when the sheet is thin. CONSTITUTION:The title sheet is made from a polyester resin compsn. consisting of 80-99wt.% polyethylene terephthalate resin and 1-20wt.% copolyester resin prepd. by esterifying a dicarboxylic acid mixture of 10-90mol% terephthalic acid and 10-90mol% isophthalic acid with ethylene glycol and has a thickness of 0.01-4.0mm and an elongation at break of 10-350%. |
