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:
Sep. 24, 2024
Filed:
Mar. 25, 2024
Dawn Zhoushi (Qingdao) Multi-layer Packaging Material Co., Ltd., Shandong, CN;
Qingdao Bioborn Packaging Co., Ltd., Shandong, CN;
Shuangli Li, Shandong, CN;
Suocheng Yang, Shandong, CN;
Rui Zhou, Shandong, CN;
Shun Gao, Shandong, CN;
Tao Wang, Shandong, CN;
Jianhao Li, Shandong, CN;
DAWN ZHOUSHI (QINGDAO) MULTI-LAYER PACKAGING MATERIAL CO., LTD., Shandong, CN;
QINGDAO BIOBORN PACKAGING CO., LTD., Shandong, CN;
Abstract
The present application discloses a high-barrier polyolefin composite film, including, from the outside to the inside, an outer PE film, a water-barrier layer, a high-barrier PVA coating layer, an adhesive layer, and an inner PE film, wherein the inner PE film comprises the following raw materials in percentage by weight: 10-20% of HDPE, 30-50% of MDPE, 20-26% of LLDPE, 10-20% of LDPE, 8-12% of a water- and oxygen-barrier masterbatch, and 1-3% of an auxiliary agent; the water- and oxygen-barrier masterbatch includes the following raw materials in parts by weight: 10-20 parts of polycarbonate, 0.1-0.3 parts of a compatibilizer, 10-20 parts of an ethylene-vinyl acetate copolymer (EVA), 1-2 parts of single-layer graphene, and 1-2 parts of polyhedral oligomeric silsesquioxane.