Method for manufacturing spherical resin particles
A solvent-free method for producing spherical resin particles through kneading, cooling, grinding, and classification of thermoplastic resins addresses energy and environmental issues, enabling efficient resin recovery and reduced emissions.
JP2026103977APending Publication Date: 2026-06-25AIMETABUKUSU KK
Patent Information
- Application Number
- JP2024218447
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2026-06-25
AI Technical Summary
Technical Problem
Existing methods for producing spherical resin particles require significant energy for drying, emit carbon dioxide, necessitate solvent removal equipment, and pose odor risks due to solvent emissions.
Method used
A method involving kneading, cooling, grinding, and classification of thermoplastic resins with specific solubility and impact strength differences to produce spherical resin particles without solvents, utilizing a sea-island structure formation.
Benefits of technology
Produces spherical resin particles efficiently without solvents, allowing for thermoplastic resin reuse and reducing environmental impact.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 2026103977000001_ABST
Abstract
This invention provides a method for producing spherical resin particles without using solvents. [Solution] A method for producing spherical resin particles, comprising: a kneading step of heating and kneading a thermoplastic resin A which will be a dispersed phase and a thermoplastic resin B which will be a continuous phase and has a Charpy impact strength lower than that of thermoplastic resin A to a temperature above the softening temperature of the thermoplastic resin A; a cooling step of cooling the resulting kneaded material to a temperature below the softening temperature of the thermoplastic resin A; a grinding step of grinding the cooled kneaded material; and a classification step of classifying the resulting pulverized material to obtain spherical resin particles made of the thermoplastic resin A.
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Citation Information
Patent Citations
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JP2006321711A
System and method for producing composite powder
JP2008001772A