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Title:
GAS BARRIER FILM
Document Type and Number:
WIPO Patent Application WO/2017/170574
Kind Code:
A1
Abstract:
This disclosure relates to a gas barrier film. This gas barrier film is provided with at least a film base material containing a polyester resin having a butylene terephthalate unit as a main constituent unit, and one or more of metal oxide layers, wherein the heat shrinkage rate, in the machine direction (MD), represented by the equation of the gas barrier film after being heated at 150°C for 30 minutes is not less than 0.6% but less than 3.0%. Heat shrinkage rate = (length before heating - length after heating) / length before heating × 100 (%)

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Inventors:
ISHII RYOJI (JP)
NISHIKAWA TAKESHI (JP)
HONGO TADASHI (JP)
Application Number:
PCT/JP2017/012694
Publication Date:
October 05, 2017
Filing Date:
March 28, 2017
Export Citation:
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Assignee:
TOPPAN PRINTING CO LTD (JP)
International Classes:
B32B9/00; B32B27/36; B65D65/40; C08J7/043; C08J7/048
Domestic Patent References:
WO2009154150A12009-12-23
Foreign References:
JP2005097560A2005-04-14
JP2004162046A2004-06-10
JP2007196550A2007-08-09
JP2006082319A2006-03-30
JP2015150836A2015-08-24
Other References:
See also references of EP 3437856A4
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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