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Title:
EASILY-TORN FILM, MULTILAYER FILM, PACKAGING MATERIAL, AND CONTAINER
Document Type and Number:
WIPO Patent Application WO/2019/026500
Kind Code:
A1
Abstract:
Provided are: an easily-torn film that has excellent straight-line cutability; a multilayer film; a packaging material; and a container. An easily-torn film that comprises a drawn polyamide resin film that includes a polyamide resin component that comprises: more than 20 parts by mass but no more than 70 parts by mass of a semi-aromatic polyamide resin A; and at least 30 parts by mass but less than 80 parts by mass of an aliphatic polyamide resin B. The semi-aromatic polyamide resin A is configured from diamine-derived structural units and dicarboxylic-acid-derived structural units. At least 60 mol% of the diamine-derived structural units are derived from meta xylene diamine, and at least 60 mol% of the dicarboxylic-acid-derived structural units are derived from C4–10 α,ω-straight-chain aliphatic dicarboxylic acids. When a TD-direction cross-section of the polyamide resin film has undergone planar ion milling, the area fraction that corresponds to the semi-aromatic polyamide resin A as observed by secondary electron image observation is at least 9.8%.

Inventors:
OTSUKA Kosuke (INC. Hiratsuka Research Laboratory, 6-2, Higashiyawata 5-chome, Hiratsuka-sh, Kanagawa 16, 〒2540016, JP)
SATO Kaname (INC. Hiratsuka Research Laboratory, 6-2, Higashiyawata 5-chome, Hiratsuka-sh, Kanagawa 16, 〒2540016, JP)
ODA Takafumi (INC. Hiratsuka Research Laboratory, 6-2, Higashiyawata 5-chome, Hiratsuka-sh, Kanagawa 16, 〒2540016, JP)
Application Number:
JP2018/024808
Publication Date:
February 07, 2019
Filing Date:
June 29, 2018
Export Citation:
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Assignee:
MITSUBISHI GAS CHEMICAL COMPANY, INC. (5-2 Marunouchi 2-chome, Chiyodaku Tokyo, 24, 〒1008324, JP)
International Classes:
C08J5/18; B32B27/00; B32B27/32; B32B27/34; B32B27/36
Domestic Patent References:
WO2013002069A12013-01-03
WO2011096333A12011-08-11
Foreign References:
JP2007099999A2007-04-19
JP2010070217A2010-04-02
Attorney, Agent or Firm:
SIKS & CO. (8th Floor, Kyobashi-Nisshoku Bldg. 8-7, Kyobashi 1-chome, Chuo-k, Tokyo 31, 〒1040031, JP)
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