A polymerization inhibitor composition, its use and method of evaluation
The polymerization inhibitor composition formed by compounding phenylenediamine and phenol compounds solves the problems of short polymerization inhibition time and high cost in the preparation of methyl methacrylate, achieves long-term polymerization inhibition effect and stable operation of the equipment, and provides a more accurate evaluation method.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- KINGFA SCI & TECH CO LTD
- Filing Date
- 2026-03-25
- Publication Date
- 2026-07-17
AI Technical Summary
Existing polymerization inhibitors have short polymerization inhibition times and high costs in the preparation of methyl methacrylate, and existing evaluation methods fail to fully consider the impact of actual working conditions, resulting in unsatisfactory polymerization inhibition effects.
A polymerization inhibitor composition is formed by combining p-phenylenediamine and phenolic compounds and adjusting the average viscosity with solvent. This composition is used in the preparation of methyl methacrylate to prevent the polymerization reaction.
It achieves long-term polymerization inhibition, avoids equipment blockage and shutdown, ensures stable operation of the reactor, and accurately evaluates the polymerization inhibition effect through an evaluation method that simulates the actual production process.
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