Title:
LAYERED FILM, LAMINATE FILM, AND PACKAGING CONTAINER
Document Type and Number:
WIPO Patent Application WO/2018/066374
Kind Code:
A1
Abstract:
Provided is a layered film that has a suitable unsealability and retains a high sealing strength under high temperature. The suitable unsealability and the high sealing strength under high temperature can be achieved by a layered film having a surface layer (A), an intermediate layer (B), and a seal layer (C), wherein: the surface layer (A) and the seal layer (C) contain a polypropylene-based resin as a main ingredient; the intermediate layer (B) contains a polypropylene-based resin (b1) and a polyethylene-based resin (b2); the contained amount of the polypropylene-based resin (b1) is 40-70 mass% of the resin component included in the intermediate layer (B), while the contained amount of the polyethylene-based resin (b2) is 30-60 mass%; and the thickness of the intermediate layer (B) is 15% or less of the overall thickness of the layered film, while the thickness of the seal layer (C) is 15% or less of the overall thickness of the layered film.
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Inventors:
KONEMURA YOUNOSUKE (JP)
MORIYA TAKASHI (JP)
MORIYA TAKASHI (JP)
Application Number:
PCT/JP2017/034066
Publication Date:
April 12, 2018
Filing Date:
September 21, 2017
Export Citation:
Assignee:
DAINIPPON INK & CHEMICALS (JP)
International Classes:
B32B27/32; B65D65/40
Foreign References:
| JP2012045884A | 2012-03-08 | |||
| JP2009096155A | 2009-05-07 | |||
| JPH03288642A | 1991-12-18 | |||
| JP2009154332A | 2009-07-16 | |||
| JP2015164800A | 2015-09-17 |
Attorney, Agent or Firm:
KONO Michihiro (JP)
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