Title:
STRETCHED POLYETHYLENE FILM, PACKAGING MATERIAL, AND FOOD PACKAGED BODY
Document Type and Number:
WIPO Patent Application WO/2024/071085
Kind Code:
A1
Abstract:
Provided is a stretched polyethylene film comprising a high-density polyethylene layer 1 (101), a middle-density polyethylene layer (102) and a high-density polyethylene layer 2 (103) in this order, in which, when a first-round differential scanning calorimetric measurement (1stRun) comprising a process for heating from -50°C to 200°C at a heating rate of 10°C/min., an isothermal process for retaining at 200°C for 10 minutes and a process for cooling from 200°C to -50°C at a cooling rate of 10°C/min. and a second-round differential scanning calorimetric measurement (2ndRun) comprising a process for heating from -50°C to 200°C at a heating rate of 10°C/min. are performed continuously using a differential scanning calorimeter, an endothermic peak A is observed in a rage from 10°C to 160°C inclusive in a DSC curve 1 obtained by the first-round differential scanning calorimetric measurement, and the melting heat amount (ΔHm) of the endothermic peak A is 110 J/g to 162 J/g inclusive.
Inventors:
SAKURAI MASAYUKI (JP)
HASHIZUME KAZUKI (JP)
TAMURA TAKUYA (JP)
KATSURAGAWA IZUMI (JP)
WAKAKI HIROYUKI (JP)
HASHIZUME KAZUKI (JP)
TAMURA TAKUYA (JP)
KATSURAGAWA IZUMI (JP)
WAKAKI HIROYUKI (JP)
Application Number:
PCT/JP2023/034851
Publication Date:
April 04, 2024
Filing Date:
September 26, 2023
Export Citation:
Assignee:
MITSUI CHEMICALS TOHCELLO INC (JP)
International Classes:
B32B27/32; B65D65/40
Domestic Patent References:
| WO2020067426A1 | 2020-04-02 | |||
| WO2022092296A1 | 2022-05-05 | |||
| WO2022168867A1 | 2022-08-11 |
Foreign References:
| US20200324513A1 | 2020-10-15 | |||
| JP2022073059A | 2022-05-17 |
Attorney, Agent or Firm:
HAYAMI Shinji (JP)
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