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:
Jul. 30, 2019
Filed:
Sep. 08, 2017
Hangreentech Co., Ltd., Seoul, KR;
Dae Hyun Kim, Seoul, KR;
Sung Kyun Park, Gyeonggi-do, KR;
Tae Soo Suh, Seoul, KR;
Wang Tak Lee, Seoul, KR;
HANGREENTECH CO., LTD., Seoul, KR;
Abstract
A functional food packaging material and a method for making the same, where the food packaging material includes: a first film comprising synthetic resin, calcium carbonate powder coated with zinc oxide, boehmite powder coated with titanium dioxide, and hydroxyapatite powder coated with iron; a second film laminated on the first film and comprising powdery particles that contain synthetic resin, loess, elvan, kaolin, zeolite, feldspar, black mica, jade, selenium and charcoal; and a third film laminated on the second film and made of synthetic film. The first film has a higher porosity than that of the second film, and the second film has a higher porosity than that of the third film. The food packaging material has improved antimicrobial activity and maximizes food storage stability. The amount of functional powder added is minimized so that the formability of the packaging material is not adversely affected.