The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 04, 2010
Filed:
Feb. 03, 2009
Hirotsugu Mori, Kyoto, JP;
Yoshio Iwasaki, Shiga, JP;
Yukio Kobayashi, Tokyo, JP;
Ishida Co., Ltd., Kyoto, JP;
Abstract
A method for producing a biodegradable bag and for packing a food, such as a snack food, which is required to have an oxygen barrier property and a water vapor barrier property. The biodegradable bag can be produced at a high speed by a bag making and packaging machine, which can be degraded by naturally occurring microorganisms in soil or water finally to a non-hazardous degradation product, which can be biorecycled, and which is not accumulated in nature. The biodegradable bag for packing a food comprises a laminated film obtainable by laminating in the following order: a sealant layer comprising a biodegradable polymer; a barrier layer having an oxygen barrier property and a water vapor barrier property; and a barrier layer-supporting substrate layer comprising a biodegradable polymer, the laminated film being heat-sealed in order for the sealant layer to be inside.