Blue ultraviolet resistant bifunctional monomer, method for preparing same, and blue ultraviolet resistant polyester

By integrating chromophores and UV-absorbing groups into polyester through chemical bonding, a blue UV-resistant bifunctional monomer was prepared, solving the problem of easy migration of small molecule additives and achieving strong absorption of polyester materials in both the visible and ultraviolet light regions. This method is suitable for high-end outdoor products and special protective clothing.

CN122255012APending Publication Date: 2026-06-23浙江材华科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
浙江材华科技有限公司
Filing Date
2026-03-30
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In existing technologies, small molecule dyes or ultraviolet absorbers are prone to migration and precipitation in outdoor applications of polyester fibers and plastics, leading to color fading and functional degradation. Furthermore, different additives may interact with each other, affecting dispersion uniformity and performance stability. High addition amounts may damage the mechanical properties of the polyester itself.

Method used

By integrating chromophores and UV-absorbing groups into the same molecule through stable chemical bonds, a blue UV-resistant bifunctional monomer is prepared. This monomer is then permanently anchored to the polymer chain through copolymerization, ensuring the uniform distribution and permanent bonding of the functional components in the polymer matrix.

Benefits of technology

It achieves strong absorption of polyester materials in the visible and ultraviolet light regions, ensuring the durability of color and UV protection performance, solving the problem of easy migration of small molecule additives, and improving the color performance and UV protection capability of polyester products. It is suitable for high-end outdoor products and special protective clothing.

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Abstract

This invention discloses a blue UV-resistant bifunctional monomer, its preparation method, and a blue UV-resistant polyester, relating to the field of functional dyes and polymer materials technology. The blue UV-resistant bifunctional monomer has the following structural formula: ; wherein, R 1 R 2 R 3 R 4 R 5 The alkyl groups are independently selected from substituted or unsubstituted C1-C4 alkyl groups. This invention integrates the chromophore and the ultraviolet absorbing group into the same molecule through stable chemical bonds, and endows the molecule with the activity to participate in polymerization. This can ensure the uniform distribution and permanent bonding of functional components in the polymer matrix at the molecular level, thereby obtaining functional materials with excellent performance and durability.
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