Title:
BIAXIALLY ORIENTED POLYPROPYLENE RESIN FILM
Document Type and Number:
WIPO Patent Application WO/2018/181011
Kind Code:
A1
Abstract:
To provide a polypropylene resin film that has heat seal strength and sealing properties adequate for packaging a heavy object and that is also suitable for automatic packaging. A biaxially oriented polypropylene resin film comprising a substrate layer (A), an intermediate layer (B), and a seal layer (C), the melting point of a resin constituting part of the substrate layer (A) and the seal layer (C) being in a specific range, and the thickness of each of the intermediate layer (B) and the seal layer (C) furthermore being set so that the ratio thereof with respect to the thickness of all the layers is in a specific range.
Inventors:
IMAI TORU (JP)
YAMADA KOJI (JP)
YAMADA KOJI (JP)
Application Number:
PCT/JP2018/011749
Publication Date:
October 04, 2018
Filing Date:
March 23, 2018
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
B65D65/40; B32B27/32
Domestic Patent References:
| WO2017170330A1 | 2017-10-05 |
Foreign References:
| JP2006327183A | 2006-12-07 | |||
| JP2007283698A | 2007-11-01 | |||
| JP2005305998A | 2005-11-04 | |||
| JPH03240533A | 1991-10-25 | |||
| JP2007160530A | 2007-06-28 | |||
| JP2011088375A | 2011-05-06 |
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