专利检索 ap:("Unitika Ltd.") AND inv:"KATO, Makoto" 第 1 页

1.

发明公开
POLYESTER FILM, AND METHOD FOR MANUFACTURING SAME 审中-公开

公开(公告)号：EP3858887A1

公开(公告)日：2021-08-04

申请号：EP19868050.6

申请日：2019-09-25

申请人： Unitika Ltd.

发明人： AKAMATSU, Ken , HAMAMOTO, Akiko , ASHIHARA, Hiroshi , KATO, Makoto

IPC分类号： C08G63/183 , C08J5/16 , C08J5/18

摘要： [Problem] In particular, to provide a sealant film that can maintain seal strength and also has a high piercing strength and can decrease the occurrence of pinholes even when used for a long period of time in a high-temperature environment.
[Solution] The stretched polyester-based film has a melting point of 155°C to 210°C and a density of 1.320 to 1.380.