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Patent Searching and Data


Title:
POLYESTER FILM, LAMINATE, AND PACKAGING BODY
Document Type and Number:
WIPO Patent Application WO/2017/159582
Kind Code:
A1
Abstract:
[Problem] To provide a polyester film that not only has a high heat sealing strength, but also does not easily adsorb various organic compounds, exhibits little shrinkage when heated, and is suitable for use as a sealant with high tensile strength. Also, to provide a laminate that includes the polyester film as at least one layer, and a packaging bag that uses the laminate. [Solution] Provided is a polyester film formed from a polyester resin that has ethylene terephthalate as a main constituent component, the film having at least one heat sealing layer, a prescribed heat sealing strength, a prescribed difference in reversing heat capacity measured by temperature-modulated DSC, and a prescribed heat shrinkage percentage. Also provided is a laminate including the polyester film as at least one layer, and a packaging bag using the laminate.

Inventors:
ISHIMARU, Shintaro (LTD. 10-24 Toyo-cho, Tsuruga-sh, Fukui 50, 〒9148550, JP)
HARUTA, Masayuki (LTD. 10-24 Toyo-cho, Tsuruga-sh, Fukui 50, 〒9148550, JP)
Application Number:
JP2017/009864
Publication Date:
September 21, 2017
Filing Date:
March 13, 2017
Export Citation:
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Assignee:
TOYOBO CO., LTD. (2-8 Dojima Hama 2-chome, Kita-ku Osaka-sh, Osaka 30, 〒5308230, JP)
International Classes:
C08J5/18; B32B27/36; B65D30/02; B65D65/40; C08G63/199; C08L67/02
Domestic Patent References:
WO2014175313A12014-10-30
Foreign References:
JP2017007726A2017-01-12
JP2016014083A2016-01-28
JP2015229242A2015-12-21
JP2004322645A2004-11-18
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