Verfahren zur Herstellung von Fluorelastomer, Wässrige Dispersion und Feste Zusammensetzung
Anmelder: AGC Inc. 🇯🇵
Details
- Veröffentlichungs-Nr.
- EP4748863
- Anmeldetag
- 18. Juli 2024
- Veröffentlichung
- 23. Januar 2025
- Rechtsraum
- EP
Abstract
To provide a method for producing a fluorinated elastomer, by which a fluorinated polymer excellent in water dispersion stability can be efficiently produced without using an emulsifier, while an aqueous medium with a small environmental impact is used. A method for producing a fluorinated elastomer, which comprises, in an aqueous dispersion that contains substantially no water-soluble emulsifier, and contains a first fluorinated polymer having TFE units and PAVE units and an aqueous medium, polymerizing a monomer containing TFE and PAVE to produce a second fluorinated polymer, wherein in the first fluorinated polymer, a content of the PAVE units is 20 to 95 mol% to a total content of the TFE units and the PAVE units, in the second fluorinated polymer, a content of the PAVE units is 20 to 95 mol% to a total content of the TFE units and the PAVE units, and before start of the polymerization of the monomer, a content of the first fluorinated polymer is 0.01 to 4.0 mass% to a total mass of the aqueous dispersion.
Anmelder
- Firma
- AGC Inc.
- Land
- 🇯🇵 Japan
Japanischer Glas- und Chemiekonzern mit Sitz in Tokio, früher als Asahi Glass Company firmierend. AGC entwickelt Flachglas, elektronische Materialien, Spezialchemikalien sowie Glasprodukte für Automobil-, Bau- und Elektronikindustrie.
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