Title:
BIAXIALLY STRETCHED POLYPROPYLENE FILM, PACKAGE FOR FOOD, AND FOOD PACKAGE
Document Type and Number:
WIPO Patent Application WO/2024/070981
Kind Code:
A1
Abstract:
Disclosed is a biaxially stretched polypropylene film (100) which comprises a biaxially stretched film layer (101) that contains a propylene polymer, and a surface resin layer (103) that is positioned on at least one surface of the biaxially stretched film layer (101) and contains a homopolypropylene (A), wherein the half-life of the saturated charged voltage as determined by the process described below is 1,300 seconds or less. (Process) A voltage is applied to the surface resin layer (103)-side surface of the biaxially stretched polypropylene film (100) for 30 seconds at an application voltage of 10 kV, a temperature of 23°C and a humidity of 50% RH, with the distance between the sample and the electrode being 20 mm, and the saturated charged voltage of the surface of the biaxially stretched polypropylene film (100) and the half-life of the saturated charged voltage are calculated in accordance with JIS L1094 (2014).
Inventors:
TAMURA TAKUYA (JP)
WAKAKI HIROYUKI (JP)
MASAMOTO TAKUMI (JP)
WAKAKI HIROYUKI (JP)
MASAMOTO TAKUMI (JP)
Application Number:
PCT/JP2023/034589
Publication Date:
April 04, 2024
Filing Date:
September 22, 2023
Export Citation:
Assignee:
MITSUI CHEMICALS TOHCELLO INC (JP)
International Classes:
B32B27/32; B32B27/00; B32B27/18; B65D65/40
Domestic Patent References:
| WO2015056781A1 | 2015-04-23 | |||
| WO2017170244A1 | 2017-10-05 |
Foreign References:
| JP2004306588A | 2004-11-04 | |||
| JP2012012032A | 2012-01-19 |
Attorney, Agent or Firm:
HAYAMI Shinji (JP)
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