Patent · US Expired

Perfluorodioxoles

US6469185B1 · kind B1 · utility

16Cited by
9References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 15, 2001
Grant dateOct 22, 2002
Priority date—
Expiry dateJun 15, 2021

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08F34/02
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Perfluoro-4-alkyl-1,3-dioxoles having the general formula wherein Rf is a perfluoroalkylic radical having from 1 to 5 carbon atoms, allow to prepare copolymers with Tg higher than those of the copolymers containing the same molar percentage of fluorinated dioxoles of the art.

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