POLYESTER-BASED SHEET AND POLYESTER-BASED MOLDED ARTICLE HAVING IMPACT RESISTANCE AT LOW TEMPERATURE AND HEAT RESISTANCE BY USING THE SAME

摘要

PROBLEM TO BE SOLVED: To prepare a polyester-based sheet having excellent vessel moldability and moldable a vessel having impact resistance at a low temperature and heat resistance, and a molded material of the sheet. SOLUTION: This polyester-based sheet comprises 62-97 wt.% of a polyethylene terephthalate-based resin having >=0.60 dl/g inherent viscosity, 1-8 wt.% of a polyolefin resin, 2-30 wt.% of a polyester-based elastomer resin and <1 wt.% of a modified polyolefin resin. The polyester-based molded article is obtained from the polyester-based sheet by heat-molding and subjecting to heat- setting so as to have 10-40% crystallinity.