Title:
ガスバリア膜およびガスバリア膜の製造方法
Document Type and Number:
Japanese Patent JP6665410
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a gas barrier film using a cellulosic material, the gas barrier film having excellent flex resistance while avoiding a crack even at a molding process and capable of maintaining gas barrier properties, and a manufacturing method thereof.SOLUTION: A gas barrier film includes a cellulosic material. The cellulosic material includes a carboxy group, and has a structure where a cellulose single nanofiber part dispersed in a microfibril unit and a cellulose nanofiber part in an unfibrillated state are closely entangled.SELECTED DRAWING: Figure 1
More Like This:
Inventors:
Takuya Isogai
Application Number:
JP2015043362A
Publication Date:
March 13, 2020
Filing Date:
March 05, 2015
Export Citation:
Assignee:
Toppan Printing Co., Ltd.
International Classes:
C08J5/18; B32B23/02; C09D5/00; C09D101/00
Domestic Patent References:
| JP2010168572A | ||||
| JP2010125814A | ||||
| JP2014114332A | ||||
| JP2002348522A | ||||
| JP2011140632A |
Foreign References:
| WO2011111612A1 | ||||
| WO2012032931A1 | ||||
| WO2009069641A1 |
Other References:
Isogai et al.,Cellulose nanofibers Preapared by TEMPO-Mediated Oxidation of Native Cellulose,Biomacromolecules,米国,American Chemical Society,2007年 5月30日,No.8,pp.2485-2491