Patent · US Expired

Hydrofluorocarbon solvents for fluoromonomer polymerization

US5182342A · kind A · utility

123Cited by

12References

25Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Andrew Edward Feiring · Wilmington, US
Carl G. Krespan · Wilmington, US
Paul R. Resnick · Wilmington, US
Bruce E. Smart · Wilmington, US
Theodore A. Treat · Washington, US
Robert Clayton Wheland · Wilmington, US

Key dates

Filing date	Feb 28, 1992
Grant date	Jan 26, 1993
Priority date	—
Expiry date	Feb 28, 2012

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F14/18
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A novel process for the free radical polymerization of fluoromonomers in which selected hydrofluorocarbon solvents are used. The solvents have little effect on atmospheric temperature and ozone concentrations. The polymers produced are useful as thermoplastics and elastomers.

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