公开(公告)号：US20160108171A1

公开(公告)日：2016-04-21

申请号：US14787027

申请日：2014-04-23

Applicant: TOYOBO CO., LTD.

Inventor： Masayuki HARUTA ,  Kazuya HIRO

IPC: C08G63/183 ,  B32B27/34 ,  B32B27/32 ,  B32B27/08 ,  B32B27/36

Abstract: The invention provides a polyester film for sealant use. The polyester film contains a polyester resin having ethylene terephthalate as a main structural component and including one or more monomer components that may serve as amorphous components so that the total amount of the monomer components are not less than 12 mol % and not more than 30 mol % among total monomer components. The polyester film is uniaxially or biaxially stretched, and has a particular heat-sealing strength and crystal melting heat capacity. The invention also provides a laminate including as at least one layer of the polyester film for sealant use, as well as a packaging bag that utilizes the laminate.

Abstract translation: 本发明提供一种用于密封剂使用的聚酯膜。 聚酯膜含有以对苯二甲酸乙二醇酯作为主要结构成分的聚酯树脂，其中含有可以作为无定形成分的一种或多种单体成分，使得单体成分的总量不小于12mol％且不大于30mol 总单体成分中的％。 聚酯薄膜是单轴或双轴拉伸的，具有特定的热封强度和结晶熔化热容。 本发明还提供一种层压体，其包括至少一层用于密封剂使用的聚酯膜，以及利用该层压体的包装袋。