Composite film, method for producing the same, and packaging material

CN122165727APending Publication Date: 2026-06-09CHINA PETROLEUM & CHEMICAL CORP +1
View PDF 3 Cites 0 Cited by

Patent Information

Application Number
CN202411783285.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing pharmaceutical packaging materials cannot effectively protect the contents from ultraviolet rays and bacteria, leading to changes or degradation of the drug's ingredients.

Method used

A composite film is prepared using multilayer co-extrusion technology, comprising an anti-UV layer, a filler layer, an adhesive layer, and a high-barrier antibacterial layer. Polyethylene and/or polypropylene are used as the raw materials for the anti-UV layer, and ethylene-vinyl alcohol copolymer and/or polyvinylidene chloride are used as the raw materials for the high-barrier antibacterial layer. The film is then melt-co-extruded using an extruder.

Benefits of technology

The prepared composite membrane has anti-UV aging and antibacterial properties, and can maintain excellent protective effect for a long time in complex environments.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122165727A_ABST
    Figure CN122165727A_ABST
Patent Text Reader

Abstract

The application relates to the technical field of composite films, and discloses a composite film, a preparation method of the composite film and a packaging material, the composite film is a composite film with a multilayer structure, and comprises an ultraviolet-resistant layer, a filling layer, a bonding layer and a high-barrier antibacterial layer; the ultraviolet-resistant layer adopts polyethylene and / or polypropylene as raw materials and a composite ultraviolet-resistant agent; the high-barrier antibacterial layer adopts a composite antibacterial agent and a barrier resin as raw materials; and the barrier resin is ethylene-vinyl alcohol copolymer and / or polyvinylidene chloride. The packaging material film prepared by adopting the composite film is soft, and has the properties of ultraviolet aging resistance and antibacterial performance.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • High-strength and high-barrier composite packaging film for medicines

    CN108943941A

  • High-barrier medicine packaging film and preparation method thereof

    CN110091557A

  • Medicinal multi-layer co-extrusion antibacterial packaging film and preparation method thereof

    CN113601928A