Synthesis and application of ketone photoinitiator and synthesis and application of ester photoinitiator

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By synthesizing 4-methyl(2-hydroxyvinyl)aminobenzophenone and ester photoinitiators, the migration and deprivation tendencies of benzophenone photoinitiators were solved, achieving low migration and high-efficiency curing effects, suitable for LED-UV curable inks and UV pressure-sensitive adhesives.

CN122355843APending Publication Date: 2026-07-10HUAIHUA JINXIN NEW MATERIAL CO LTD

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Patent Information

Application Number: CN202610580010.X
Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner
Filing Date: 2026-04-28
Publication Date: 2026-07-10

Application Information

Patent Timeline

28 Apr 2026

Application

CN202610580010.X

10 Jul 2026

Publication

CN122355843A

IPC: C07C221/00; C08F2/48; C08F122/14; C09D11/101; C07C225/22

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Polymer science UV curing

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AI Technical Summary

Technical Problem

Existing benzophenone photoinitiators exhibit significant migration and depletion tendencies during the curing process, making it difficult to meet market demands for low migration and efficient curing.

Method used

By synthesizing 4-methyl(2-hydroxyvinyl)aminobenzophenone and ester photoinitiators, a single-component hydrogen-abstracting photoinitiator is formed by chemically combining benzophenone with an amine, which is then applied to LED-UV curable inks and UV pressure-sensitive adhesives.

Benefits of technology

It achieves low migration and high-efficiency curing of photoinitiators, making it suitable for LED-UV curable inks and UV pressure-sensitive adhesives, and improves the migration and odor problems of benzophenone.

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Abstract

The application belongs to the technical field of photoinitiators, and discloses synthesis and application of ketone photoinitiators and synthesis and application of ester photoinitiators; 4-chlorobenzophenone (4-fluorobenzophenone) and 2-methylaminoethanol generate 4-methyl (2-hydroxyvinyl) aminobenzophenone under the action of alkali, and then further react with acyl chloride to generate 4-methyl (2-hydroxyvinyl) aminobenzophenone ester.The application has the beneficial effect that the compound has good photoinitiation activity and can be applied in LED-UV curing ink and UV pressure-sensitive adhesive.

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