Nano-degradable high-barrier packaging film and manufacturing method thereof

Name of Nanodegradable High Barrier Packaging Film and Its Manufacturing Method Patent Applicant Shandong Binzhou Grace New Material Co., Ltd. Principal Applicant Address 100029 Inventor Liu Guanchen; Room 1103, Building No.2, Building 2, No. 29, North Sanhuan Middle Road, Xicheng District, Beijing; Luo Xiaofu; Zhu Pengtao; Xuan Fujun Application (Patent) No. 200510000405.6 Application Date 2005.01.07 Certification Date Approval Announcement No. 1736812 Audit Announcement Date 2006.02.22 Instruction CD No. D0608-1 Main Classification No. B65D65/40(2006.01)I Class No. B65D65 /40(2006.01)I;B23B27/08(2006.01)I;B29C47/04(2006.01)I;B29C47/78(2006.01)I;B29C47/60(2006.01)I;B29C41/32(2006.01)I;B29C55/12 (2006.01)I;B29K23/00(2006.01)N;B29L9/00(2006.01)N division Original application number Priority item 2004.1.9 CN 200410000247.X Abstract This invention provides a nano-degradable high barrier packaging film product and The manufacturing method thereof is specifically a degradable composite film prepared by using a degradable nano-polymer as a barrier material. The composite film has a layered structure composed of at least two outer layers and an intermediate layer, wherein at least one layer is a barrier layer, the barrier layer is a degradable nano polymer, and the other layers are degradable polyolefins or polyolefins. The high-barrier biodegradation film has good transparency and barrier properties to oxygen and water vapor. After being modified by nano-scale inorganic materials, the high-barrier biodegradable film is produced by a multi-layer co-extruded film and a co-extruded shrink film device to produce a 3-7-layer film, so that the product has high Barrier property, and can guarantee that the packaged goods have a longer shelf life, and it is degraded after one year or two years, with the effect of dry compounding and coextruded composite plastic film. Sovereignty item 1, a nano-degradable high-barrier packaging film, characterized in that the packaging film is a degradable composite film prepared from a degradable nano-polymer as a barrier material, and the composite film has at least two outer layers. A layered structure consisting of a layer and an intermediate layer, wherein at least one layer is a barrier layer, the barrier layer is a degradable nano polymer, and the other layer is a degradable polyolefin or a polyolefin.