Title:
ポリプロピレンフィルム、および離型用フィルム
Document Type and Number:
Japanese Patent JP7400851
Kind Code:
B2
Abstract:
Provided is a polypropylene film having excellent high-temperature heat-shrinkability, film flatness at high temperature, and quality. This polypropylene film has a heat-shrinkage of 4-30% after treatment at 130 ˚C for 15 minutes in a main shrinkage direction, and a melting peak temperature of 155 ˚C or higher when elevating the temperature from 30 ˚C to 260 ˚C at 20 ˚C/minute in a differential scanning calorimeter DSC.
Inventors:
Yuta Nakanishi
Kazuma Okada
Masatoshi Ohkura
Kohei Yamanaka
Kazuma Okada
Masatoshi Ohkura
Kohei Yamanaka
Application Number:
JP2022031243A
Publication Date:
December 19, 2023
Filing Date:
March 01, 2022
Export Citation:
Assignee:
Toray Industries, Inc.
International Classes:
B29C61/06; B29C33/68; C08J5/18
Domestic Patent References:
| JP2003025425A | ||||
| JP2015044406A | ||||
| JP2015178615A | ||||
| JP2018141122A |
Foreign References:
| WO2018147335A1 |
Attorney, Agent or Firm:
Sakai International Patent Office