Title:
ガスバリア積層体
Document Type and Number:
Japanese Patent JP6879292
Kind Code:
B2
Abstract:
The present disclosure relates to a gas barrier film. This gas barrier film includes at least a film base material including a polyester resin having a butylene terephthalate unit as a main constituent unit, and one or more metal oxide layers wherein the gas barrier film has a heat shrinkage rate in the machine direction (MD direction) after heating for 30 minutes at 150°C of 0.6% or more but less than 3.0%, the heat shrinkage rate being represented by the following formula: Heat shrinkage rate = {(Length before heating - Length after heating)/Length before heating} × 100 (%).
Inventors:
Ryoji Ishii
Ken Nishikawa
Hongo Tadashi
Ken Nishikawa
Hongo Tadashi
Application Number:
JP2018508087A
Publication Date:
June 02, 2021
Filing Date:
March 28, 2017
Export Citation:
Assignee:
Toppan Printing Co., Ltd.
International Classes:
B32B9/00; B32B7/02; B32B27/36; B65D65/40; C08J7/043; C08J7/048
Domestic Patent References:
| JP2005097560A | ||||
| JP2004162046A | ||||
| JP2007196550A | ||||
| JP2006082319A | ||||
| JP2015150836A | ||||
| JP2006341546A | ||||
| JP2015048081A |
Foreign References:
| WO2009154150A1 | ||||
| WO2015178390A1 |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Yohei Suzuki
Yoshiki Kuroki
Yohei Suzuki