Highly transparent boiling-resistant ionic interlayer and method for producing the same

By compounding various ionic resins and adjusting the additives, a highly transparent and water-resistant ionic interlayer film was prepared, which solved the problem of balancing transparency and water resistance, improved processing stability and optical performance, and is suitable for laminated glass products.

CN122404840APending Publication Date: 2026-07-17
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Filing Date
2026-05-29
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing ionic interlayer films struggle to balance transparency and water resistance, suffer from insufficient processing stability, are prone to crystallization and fogging during cooling, exhibit bluish and foggy appearance under light after lamination, and have unstable long-term durability.

Method used

A comprehensive regulatory system is formed by compounding multiple ionic main resins, combined with antioxidants, nucleating agents, silane coupling agents and other functional additives, to prepare a highly transparent, water-resistant ionic intermediate membrane.

Benefits of technology

It achieves high transparency, water resistance, good thermal processing stability and mechanical properties, improves the optical quality and long-term reliability of the film material, and is suitable for laminated glass products of different grades and uses.

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Abstract

The application relates to a high-transparency boiled-water-resistant ionic intermediate film and a preparation method thereof, and belongs to the technical field of polymer functional film materials for laminated glass. The ionic intermediate film takes an ionic resin as a main body, is supplemented with an antioxidant, a nucleating agent, a silane coupling agent, and is further introduced with a metal soap stabilizer, a processing lubricant, an ultraviolet absorber, a hindered amine light stabilizer, an acid absorber and an anti-adhesion aid and the like synergistic modification components. The ionic bond structure, crystallization behavior, thermal processing stability and glass interface compatibility of the main body resin are comprehensively controlled, so that the obtained intermediate film has the advantages of high light transmittance, low haze, good boiled-water-resistant performance, wet heat-resistant performance, mechanical strength and laminating processing stability. The ionic intermediate film is suitable for building safety laminated glass, automobile laminated glass, sunroof glass, railing glass and other composite glass products which require high strength and high durability.
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