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Title:
LAMINATE PROVIDED WITH HEAT-SEALABLE RESIN LAYER AND POLYESTER FILM HAVING FURANDICARBOXYLIC ACID UNIT, AND PACKAGING BAG
Document Type and Number:
WIPO Patent Application WO/2018/159649
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: a laminate that has excellent lamination strength and that is provided with a heat-sealable resin layer and a polyester film having a furandicarboxylic acid unit; and a packaging bag provided with the laminate. This laminate is provided with a heat-sealable resin layer and a polyester film and is characterized in that the polyester film is a biaxially oriented polyester film containing a polyethylene furandicarboxylate resin comprising furandicarboxylic acid and ethylene glycol, the planar orientation coefficient ΔP of the film is 0.005-0.200, the film has a thickness of 1-300 µm, the thermal shrinkage rate of the film when treated for 30 minutes at 150°C is 10% or less, and the lamination strength of the laminate is 2.0 N/15 mm or more.

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Inventors:
HAYAKAWA SHOTA (JP)
NUMATA YUKIHIRO (JP)
ITO KATSUYA (JP)
INAGAKI JUN (JP)
VAN BERKEL JESPER GABRIEL (NL)
Application Number:
PCT/JP2018/007405
Publication Date:
September 07, 2018
Filing Date:
February 28, 2018
Export Citation:
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Assignee:
TOYO BOSEKI (JP)
SYNVINA C V (NL)
International Classes:
B32B27/36
Domestic Patent References:
WO2014100265A12014-06-26
WO2016032330A12016-03-03
Foreign References:
JP2003200546A2003-07-15
JP2012229395A2012-11-22
JP2012094699A2012-05-17
JPH1110725A1999-01-19
JP2014073598A2014-04-24
US2551731A1951-05-08
JP4881127B22012-02-22
JP2013155389A2013-08-15
JP2015098612A2015-05-28
JP2015506389A2015-03-02
JP2012229395A2012-11-22
JP2017008201W2017-03-01
Other References:
Y. HACHIHAMAT. SHONOK. HYONO: "Technol. Repts.", vol. 8, 1958, OSAKA UNIV., pages: 475
See also references of EP 3590711A4
Attorney, Agent or Firm:
UEKI, Kyuichi et al. (JP)
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