Title:
積層体
Document Type and Number:
Japanese Patent JP6439998
Kind Code:
B2
Abstract:
Provided is high-laminate-strength layered film having an inorganic thin-film layer in which there is used a polyester resin demonstrating minimal thickness irregularity, the resin being recycled from PET bottles. The layered film is a polyester film containing 50-95 wt% of polyester resin recycled from PET bottles, wherein the ratio of the isophthalic acid component to the total dicarboxylic acid component in the total polyester resin content of the polyester film is 0.5-5.0 mol%, the layered film having an inorganic thin-film layer in which there is used a polyester film having a specified limiting viscosity, heat shrinkage, laminate strength, and thickness irregularity.
Inventors:
Nakano Mayo
Ishi Nakatani
Toshiyuki Shimizu
Yoshitomo Ikehata
Nori Tabota
Ishi Nakatani
Toshiyuki Shimizu
Yoshitomo Ikehata
Nori Tabota
Application Number:
JP2017174612A
Publication Date:
December 19, 2018
Filing Date:
September 12, 2017
Export Citation:
Assignee:
Toyobo Co., Ltd.
International Classes:
B32B27/36; B32B9/00
Domestic Patent References:
| JP2004001888A | ||||
| JP2012116082A | ||||
| JP2012096469A | ||||
| JP2004115704A | ||||
| JP2001062975A | ||||
| JP2007118476A |
Foreign References:
| WO2004073983A1 |
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