POLYESTER COPOLYMER RESIN MOLDED PRODUCT COMPRISING COPOLYMER RESIN OBTAINED FROM TEREPHTHALIC ACID, ISOPHTHALIC ACID, 1,4-DICYCLOHEXANEDIMETHANOL AND ETHYLENE GLYCOL, AND STEARIC ACID AND STEARATE-BASED LUBRICANTS, AND PREPARATION METHOD THEREOF

摘要

PURPOSE: A polyester copolymer resin molded product and its preparation method are provided, to improve flowability without the deterioration of transparency by using an additive with an excellent heat resistance and an additive with an excellent flowability. CONSTITUTION: The method comprises the steps of premixing 100 parts by weight of a polyester copolymer resin obtained from a dicarboxylic acid comprising terephthalic acid and a glycol comprising 1-100 mol% of 1,4-dicyclohexanedimethanol and 0-99 mol% of ethylene glycol and having an intrinsic viscosity of 0.5-1.2 dl/g, 0.05-10 parts by weight of stearic acid, and 0.05-10 parts by weight of pentaerythritol tetrastearate; and injection or extrusion blow molding the mixture. Also the method comprises the steps of premixing 100 parts by weight of a polyester copolymer resin obtained from a dicarboxylic acid comprising 60-99 mol% of terephthalic acid 1-40 mol% of isophthalic acid and a glycol comprising 1-100 mol% of 1,4-dicyclohexanedimethanol and 0-99 mol% of ethylene glycol and having an intrinsic viscosity of 0.6-1.4 dl/g, 0.05-10 parts by weight of stearic acid, and 0.05-10 parts by weight of pentaerythritol tetrastearate; and injection or extrusion blow molding the mixture.