Title:
二軸配向ポリプロピレンフィルム
Document Type and Number:
Japanese Patent JP6904490
Kind Code:
B2
Abstract:
Provided is a biaxially oriented polypropylene film that has high stiffness, has excellent heat resistance at a high temperature of 150°C, easily maintains a bag shape when being made into a packaging bag, and has less pitch shift during printing or fewer wrinkles in a sealed portion when being heat-sealed. A biaxially oriented polypropylene film, wherein a maximum elongation of the biaxially oriented polypropylene film at 150°C or lower measured by a thermomechanical analyzer (TMA) is not larger than 1.5 mm in a longitudinal direction and not larger than 0.1 mm in a width direction, and a heat shrinkage rate of the biaxially oriented polypropylene film at 150°C is not higher than 10% in the longitudinal direction and not higher than 30% in the width direction.
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Inventors:
Koji Yamada
Kazuhito Horinouchi
Nakano Mayo
Toru Imai
Kazuhito Horinouchi
Nakano Mayo
Toru Imai
Application Number:
JP2020563159A
Publication Date:
July 14, 2021
Filing Date:
December 19, 2019
Export Citation:
Assignee:
Toyobo Co., Ltd.
International Classes:
B29C55/12; C08J5/18
Domestic Patent References:
| JP2014051657A | ||||
| JP2017500226A | ||||
| JP2018130958A |