Preparation of functional master batch for polyester film by in-situ polymerization and preparation process and application
Functional masterbatch for polyester film was prepared by in-situ polymerization. Using terephthalic acid, ethylene glycol, 1,4-cyclohexanediethanol and modified silica, a shell with a certain degree of toughness was formed, which solved the problem of large surface roughness of PET film and achieved a balance between flatness and anti-blocking performance of high-end MLCC release film.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG JIANXING TECH CO LTD
- Filing Date
- 2026-04-25
- Publication Date
- 2026-07-17
AI Technical Summary
Existing PET films, while maintaining anti-blocking properties, have relatively large surface roughness, making it difficult to meet the high-end requirements of MLCC release films.
Functional masterbatch for polyester film was prepared by in-situ polymerization. Terephthalic acid and ethylene glycol were used as the main polymerization monomers, 1,4-cyclohexanediethanol was used as the copolymerization modification monomer, and modified silica was used as the functional filler to form a shell with a certain toughness, achieving uniform dispersion at the nanoscale and forming a uniform micro-protrusion structure.
While maintaining anti-blocking properties, it significantly reduces surface roughness and improves surface smoothness, meeting the stringent requirements of release films for high-end MLCCs.
Smart Images
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