ETHYLENE TEREPHTHALATE POLYESTER RESIN FOR FORMING CONTAINER, AND METHOD FOR PRODUCING SAME
申请人:Toyo Seikan Group Holdings, Ltd.
公开号:EP2730601A1
公开(公告)日:2014-05-14
An ethylene terephthalate type polyester resin for forming containers, having an intrinsic viscosity in a range of 0.80 to 0.90 dL/g, containing copolymerizable components other than the ethylene glycol and terephthalic acid in an amount of less than 1.5 mol%, containing monohydroxyethyl terephthalate and bishydroxyethyl terephthalate in a total amount of less than 0.005% by weight, and having a heat of fusion of not more than 50 J/g and a crystallinity of less than 60%. The ethylene terephthalate type polyester resin has a high intrinsic viscosity, excellent stretch formability and excellent melting property.
一种用于形成容器的对苯二甲酸乙二醇酯型聚酯树脂,其固有粘度范围为 0.80 至 0.90 dL/g,含有除乙二醇和对苯二甲酸以外的可共聚组分,其含量小于 1.5 mol%,对苯二甲酸单羟乙基酯和对苯二甲酸双羟乙基酯的总含量小于 0.005%(按重量计),熔融热不大于 50 J/g,结晶度小于 60%。对苯二甲酸乙二醇酯类聚酯树脂具有较高的固有粘度、优异的拉伸成型性和熔融性。