Composition, binder, adhesive tape and optical cable

By using a compound of isooctyl acrylate matrix resin with phosphate esters and hypophosphite flame retardants, combined with organosilicon and charring agents, the problems of transparency, flame retardancy and yellowing resistance of transparent double-sided tape for invisible optical cables have been solved, thus improving the service life of optical cables.

CN122445286APending Publication Date: 2026-07-24HUAWEI TECH CO LTD
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Patent Information

Application Number
CN202510113431.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-22
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The existing transparent double-sided tape for invisible optical cables cannot simultaneously possess high transparency, flame retardancy, and resistance to yellowing, which affects their service life after long-term use.

Method used

A composition containing isooctyl acrylate as the base resin is used, compounded with phosphate ester and hypophosphite flame retardants to form a three-dimensional network structure binder, which enhances the flame retardant effect and yellowing resistance. Organosilicon and charring agent are added to improve flexibility and heat insulation performance.

Benefits of technology

It achieves good transparency, flame retardancy and yellowing resistance while maintaining high adhesion, ensuring that the invisible optical cable maintains good transparency and flame retardancy after long-term service.

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Abstract

The invention discloses a composition, a binder, an adhesive tape and an optical cable, and belongs to the technical field of optical cables. The composition comprises a matrix resin and a flame retardant, the matrix resin comprises 50%-85% by mass of 2-ethylhexyl acrylate, and the flame retardant comprises 1%-30% by mass of a phosphate flame retardant and 10%-50% by mass of a hypophosphite flame retardant; the hypophosphite flame retardant is selected from at least one of aluminum hypophosphite, zinc hypophosphite, iron hypophosphite, aluminum diethylphosphinate, aluminum methyl phosphinate and aluminum propyl phosphinate. A binder formed by the composition can be used as a binding layer of the invisible optical cable, and the binding layer of the invisible optical cable has good transparency, flame retardance and yellowing resistance on the basis of keeping reliable binding power.
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