Polyester resin film modifier, and polyester resin film composition, polyester resin film, and method for manufacturing laminated film

CN122302372APending Publication Date: 2026-06-30TAKEMOTO OIL & FAT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TAKEMOTO OIL & FAT CO LTD
Filing Date
2025-09-08
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In the prior art, polyester resin films are prone to wrinkles, uneven thickness and poor appearance during high-speed film formation, and the addition of sulfonates can cause pollution of the operating environment and unstable supply.

Method used

Organic sulfonates with specific particle size distributions are used as modifiers to adjust their proportion and particle size range in polyester resins in order to improve electrostatic adhesion and stabilize supply, thereby preparing polyester resin films and laminated films.

Benefits of technology

It achieves excellent electrostatic adhesion and operational stability of polyester resin films, supports high-speed film-making processes, and reduces the risks of environmental pollution and unstable supply.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This invention provides a modifier for polyester resin films that imparts excellent electrostatic adhesion to polyester resin films, can be stably added to polyester resins, and improves workability. The modifier for polyester resin films contains an organic sulfonate. When the total amount of the organic sulfonate is set to 100% by mass, the content of organic sulfonates with a particle size greater than 0 μm and less than 75 μm is 5% by mass or less, and the content of organic sulfonates with a particle size greater than 75 μm and less than 150 μm is 5% by mass or more. Furthermore, the content of organic sulfonates with a particle size greater than 1000 μm is preferably 10% by mass or less.
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