Polycyclic ester products, methods for producing polycyclic ester products, and methods for producing polymer compounds
The production of a polycyclic ester product with controlled homopolymer content addresses filter clogging issues in polymer compound production, enhancing efficiency and reducing costs.
JP7869389B1Active Publication Date: 2026-06-02DAICEL CORP
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- DAICEL CORP
- Filing Date
- 2025-09-01
- Publication Date
- 2026-06-02
AI Technical Summary
Technical Problem
The production of polymer compounds using polycyclic esters as monomer components often results in filter clogging during filtration.
Method used
A polycyclic ester product with a homopolymer content of 100 ppm by mass or less is produced, utilizing a method that includes polycyclic ester formation, activated carbon treatment, and optional steps like acid washing, alkaline washing, and crystallization to reduce impurities.
Benefits of technology
Reduces filter clogging, lowers production costs, and shortens the production time of polymer compounds by minimizing homopolymer content.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 0007869389000001_ABST
Abstract
The purpose of this disclosure is to provide a polycyclic ester product that can reduce filter clogging during the production of polymer compounds. [Solution] A polycyclic ester product containing a polycyclic ester represented by a specific chemical formula, wherein the content of the polycyclic ester homopolymer, calculated by a specific method, is 100 ppm by mass or less per 100% by mass of the polycyclic ester product. Preferably, the content of the polycyclic ester homopolymer is 0.01 ppm by mass or more and 100 ppm by mass or less.
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