Colored masterbatch composition, thermoplastic resin composition, and molded article
A colored masterbatch composition with a polyester resin, colorant, and antistatic agent addresses the imbalance in antistatic and impact resistance, achieving uniform dispersion and improved properties in molded articles.
JP7700529B2Active Publication Date: 2025-07-01TOYO INK MFG CO LTD +1
Patent Information
- Application Number
- JP2021102236
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-06-21
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2041-06-21
AI Technical Summary
Technical Problem
Conventional methods fail to achieve a balanced combination of antistatic properties and impact resistance in plastic molded articles, particularly those made of polyester resins, and often result in color unevenness and injection marks during molding.
Method used
A colored masterbatch composition comprising a polyester resin, a colorant, and an antistatic agent with specific viscosity and melting point ranges is developed, ensuring uniform dispersion and improved impact resistance.
Benefits of technology
The composition provides molded articles with excellent antistatic properties and impact resistance, preventing color unevenness and injection marks.
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Smart Images
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Abstract
To provide a coloring masterbatch composition that has excellent impact resistance and antistatic properties and allows for stable coloring without color unevenness, a thermoplastic resin composition containing the coloring masterbatch composition, and a molding that is formed from the thermoplastic resin composition, has excellent impact resistance and antistatic properties, and has no color unevenness.SOLUTION: A coloring masterbatch composition contains a polyester resin (A), a colorant (B), and an antistatic agent (C) having a DSC melting point of 60°C or higher and lower than 240°C and has inherent viscosity of 0.45 dl / g or more and, at 280°C, melt viscosity of 10 Pa s or more and 500 Pa s or less.SELECTED DRAWING: None
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Citation Information
Patent Citations
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