IP Verse

Process For Preparing A Powdery Organic Peroxide Formulation

Patent No. EP3728187 (titled "Process For Preparing A Powdery Organic Peroxide Formulation") was filed by Nouryon Chemicals on Dec 14, 2018. The application was issued on Jun 22, 2022.

Patent Summary

A process for preparing a storage-stable, safe, powdery organic peroxide formulation comprises heating a reaction mixture at 5-50°C. The mixture consists of 40-80 wt% water, 10-25 wt% acid chloride or chloroformate, 1-4 wt% hydrogen peroxide, 2-8 wt% alkali metal hydroxide, 0.002-0.20 wt% surfactant, and 0.25-5.0 wt% inert organic solvent. Additionally, it contains 1-25 wt% of a phlegmatizer selected from ethylene glycol dibenzoate, phenyl benzoate, trimethylol propane tribenzoate, glyceryl tribenzoate, ethylene glycol ditoluate, 1,3-propanediol ditoluate, ethylene glycol 4-tert-butylbenzoate, ethylene glycol monobenzoate monotoluate, 2,3-butanediol dibenzoate, 4-methylphenyl benzoate acid ester, trimethylolpropane dibenzoate, or combinations thereof. The process aims to improve yield, reduce foaming, and produce fine particles for rapid homogenization in polymerization or resin curing applications.

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CompanyOpposition DateRepresentative
UNITED INITIATORSMar 20, 2023WEICKMANN & WEICKMANN PARTMBB

Dossier Documents

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  • Date

    Description

EP3728187

NOURYON CHEMICALS
Application Number
EP18816069A
Filing Date
Dec 14, 2018
Status
Granted And Under Opposition
May 20, 2022
Publication Date
Jun 22, 2022
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