Multi-layer polymer composite packaging container with nano-layer texture and processing method thereof

Patent name Multilayer polymer composite packaging container with nano-layer texture and its processing method Patent applicant Sichuan University Principal Applicant Address 610065 Chen Limin, Inventor of the College of Polymer Science and Engineering, Sichuan University, Chengdu, Sichuan, China (Patent) No. 200510020944.6 Date of Application 2005.05.25 Approval Date Approval Notice No. 1693148 Audit Notice Date 2005.11.09 Instruction CD-ROM D0545 Main Classification Number B65D65/40 Classification Number B65D65/40; B65D1/12; B32B27/00; B29D22/00 ;B29C69/00;//B29L22:00 division of the original application No. priority Abstract This invention discloses a multi-layer polymer composite packaging container having a nano-layer texture and a processing method thereof, wherein the composite packaging container can be formed by Two kinds of polymers with parallel heterostructure and cross-knit structure are processed by micro-layer co-extrusion/co-injection, cooling molding, heat treatment, hot stretching and other processes, and the base layer polymer layer is in the container wall. The c-axis of the platelets intersects with the c-axis of the lamellar crystals of the epitaxial-phase polymer layer, and the cumulative layer thickness of the base-phase polymer layer is the wall thickness of the packaging container. 50 to 99%, relative to the polymer layer epiphytic total thickness of 1 to 50%, and the thickness of single-phase polymer layer epiphytic 50 to 300 nm. Due to the formation of the nano-layer reinforcing phase of the braided structure and the mutual bridging of the two-phase crystal regions in the wall of the packaging container, the invention greatly reduces the defects in the amorphous region and makes the strength, rigidity and ductility of the composite packaging container. Both have been greatly improved, and the packaging container has been given extremely high barrier properties and corrosion resistance. Sovereignty Clause 1. A multi-layer polymer composite packaging container having nano-layer texture, characterized in that the composite packaging container wall is composed of a base-phase polymer layer capable of forming a non-parallel chain heterophase epitaxial cross-knit structure and attachment The crystal phase of the green phase polymer layer is formed by staggered overlapping, in which the crystal c-axis of the base phase polymer layer is along the wall of the container wall, and the accumulated thickness of each layer is 50-99% of the total thickness of the container wall. The crystal c-axis of the polymer layer intersects the vessel wall axis, the accumulated thickness of each layer is 1-50% of the total thickness of the vessel wall, and the thickness of the monolayer of the epitaxial phase polymer layer is 50-300 nm. International Application International Announcement Date of Entry into the Country Patent Agency Chengdu Kehai Patent Affairs Co., Ltd. Agency Address Agent Lu Jianping