2 POLYESTER RESIN COMPOSITION WITH EXCELLENT UV BLOCKING PROPERTY AND BIAXIAL-ORIENTED POLYESTER BOTTLE PREPARED BY USING THE SAME

摘要

PURPOSE: Provided are a polyester resin composition having excellent transparency and UV blocking property, and a biaxially stretched polyester bottle produced by using the same. CONSTITUTION: The composition is produced by melting and kneading 99-60 parts by weight of polyethylene terephthalate and 1-40 parts by weight of polyethylene naphthalate. The biaxially stretched polyester bottle is produced by injection molding the polyester resin composition to form a preform, and biaxially stretching and blow molding the preform, wherein the bottle has a stretching ratio of 3-10 times, and a thickness of cylindrical body part of 0.2-0.6 mm.