Partially fluorinated polymers

US9714307B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Klaus Hintzer · Woodbury, US
• Harald Kaspar · Altötting, DE
• Herbert Koenigsmann · Altötting, DE
• Helmut Traunspurger · Julbach, DE
• Tilman C. Zipplies · Burghausen, DE

Key dates

• Filing date: Nov 20, 2013
• Grant date: Jul 25, 2017
• Expiry date: Nov 20, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2201/54
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A method of making a partially fluorinated polymer dispersions and resulting aqueous mixtures. The method comprising polymerizing one or more fluorinated monomers in an aqueous emulsion polymerization in the presence of a polymerizable fluorinated emulsifier to form a fluorinated polymer. The polymerizable fluorinated emulsifier has the formula X2C═CX(CF2)m(CH2)n[O—(CX2)p]q-[O—(CX2)r]s—[O—(CX2—CX2)]t—[(O)w—(CX2)u]v-[CH2]z—Y.