Patent · US Expired

Aqueous emulsion polymerization process for the manufacturing of fluoropolymers

US6677414B2 · kind B2 · utility

17Cited by

3References

18Claims

0Family size

Assignee

3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

Klaus Hintzer · Woodbury, US
Gernot Lohr · Altötting, DE
Franz März · Altötting, DE

Key dates

Filing date	Dec 11, 2001
Grant date	Jan 13, 2004
Priority date	—
Expiry date	Dec 11, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F214/262
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Emulsion polymerization of liquid fluorinated monomers which have a boiling point above 50° C. and low water-solubility is markedly more efficient if the monomer is pre-emulsified with a nontelogenic fluorinated emulsifier in water.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.