Title:
GAS BARRIER FILM
Document Type and Number:
WIPO Patent Application WO/2020/116514
Kind Code:
A1
Abstract:
A gas barrier film according to the present invention is provided with: a base material film containing a resin; and a gas barrier layer which has oxygen barrier properties, while being arranged in contact with at least one surface of the base material film. This gas barrier film is configured such that the surface of the gas barrier layer has a flat part and a plurality of projection parts that protrude from the flat part. If d is the thickness (μm) of the gas barrier layer and f is the height (μm) of each one of the projection parts, the number of projection parts satisfying formula (1) is 0-200 per mm2 and the number of projection parts satisfying formula (2) is 20 per mm2 or more.
(1): d × 2 ≤ f
(2): 0.2 ≤ f < d × 2
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Inventors:
KAMINAGA JUNICHI (JP)
HOSHI SAYAKA (JP)
OMURA YUKI (JP)
SUZUKI SEIYA (JP)
KOSHIYAMA YOSHIKI (JP)
HOSHI SAYAKA (JP)
OMURA YUKI (JP)
SUZUKI SEIYA (JP)
KOSHIYAMA YOSHIKI (JP)
Application Number:
PCT/JP2019/047432
Publication Date:
June 11, 2020
Filing Date:
December 04, 2019
Export Citation:
Assignee:
TOPPAN PRINTING CO LTD (JP)
International Classes:
B32B3/30; B32B27/18; B32B27/32; B32B27/34; B32B27/36; B32B27/40; B65D65/42; C08J7/04; C09D7/61; C09D175/04
Foreign References:
| JP2001071425A | 2001-03-21 | |||
| JP2001048994A | 2001-02-20 | |||
| JP2017071693A | 2017-04-13 | |||
| JP2001009983A | 2001-01-16 | |||
| JP2002113826A | 2002-04-16 | |||
| JP2018229369A | 2018-12-06 | |||
| JP2019069011A | 2019-05-09 | |||
| JP6191221B2 | 2017-09-06 | |||
| JP2001316489A | 2001-11-13 | |||
| JP2001048994A | 2001-02-20 | |||
| JPH09324061A | 1997-12-16 | |||
| JPH09150484A | 1997-06-10 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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