Pp adhesive film composition, and preparation method therefor and use thereof

WO2025241690A1PCT designated stage Publication Date: 2025-11-27GUANGDONG KINGFA COMPOSITE MATERIALS CO LTD
View PDF 6 Cites 0 Cited by

Patent Information

Application Number
PCT/CN2025/084586
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-05-22
Filing Date
2025-03-25
Publication Date
2025-11-27

AI Technical Summary

Technical Problem

Existing adhesives have poor aging resistance and are prone to embrittlement when bonding metal plates and thermoplastic composites. Furthermore, ordinary PP modified film-forming materials are prone to developing holes, which affects the bonding effect.

Method used

A PP film composition consisting of polypropylene, melt stabilizer and binder in a specific ratio, including a mixture of copolymer polypropylene, propylene-based elastomer and metallocene low-density polyethylene, improves extrusion stability and adhesion performance by controlling melt index and grafting rate.

Benefits of technology

It achieves high adhesion and aging resistance of PP film, avoids holes, maintains uniform film output, and enhances the bonding effect between metal plate and thermoplastic composite material.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure PCTCN2025084586-APPB-I100001
    Figure PCTCN2025084586-APPB-I100001
  • Figure PCTCN2025084586-APPB-I100002
    Figure PCTCN2025084586-APPB-I100002
  • Figure PCTCN2025084586-APPB-I100003
    Figure PCTCN2025084586-APPB-I100003
Patent Text Reader

Abstract

The present invention relates to a PP adhesive film composition, and a preparation method therefor and a use thereof. The PP adhesive film composition comprises the following components: polypropylene, a melt stabilizer, and a binder. The PP adhesive film composition of the present invention exhibits good cohesiveness and aging resistance, and the adhesive film is not prone to breakage and can maintain uniform film output, so that the gram weight of the film is relatively uniform.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Hot-melt adhesive applicable to PP-R plastic-aluminum stable-state tube and method thereof

    CN109852293A

  • Hot melt adhesive for high-performance polypropylene barrier film as well as preparation method and application of hot melt adhesive

    CN114032049A

  • Encapsulation adhesive film for integration of electrode frame and diaphragm as well as preparation method and application of encapsulation adhesive film

    CN116111129A

  • Polypropylene sheet bonding hot melt adhesive and preparation method thereof

    CN117126627A

  • PP adhesive film composition as well as preparation method and application thereof

    CN118703122A