Method for reducing fluorinated emulsifiers from aqueous fluoropolymer dispersions using sugar-based emulsifiers

US10093820B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Tilman C. Zipples · Burghausen, DE
• Arne Thaler · Emmerting, DE
• Egon Obermaier · Taubenbach, DE
• Klaus Hintzer · Woodbury, US
• Michael C. Dadalas · Eggenfelden, DE

Key dates

• Filing date: May 16, 2014
• Grant date: Oct 9, 2018
• Expiry date: Jun 4, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/1545
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Provided are processes for upconcentrating fluoropolymer dispersions. Also provided are upconcentrated dispersions and substrates coated with such dispersions.