Patent · US Expired

Azeotrope-like compositions and their use

US6423673B1 · kind B1 · utility

32Cited by
0References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 19, 2001
Grant dateJul 23, 2002
Priority date—
Expiry dateSep 19, 2021

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC10N2040/20
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

The invention provides azeotrope-like compositions consisting essentially of 1,1,1,3,3-pentafluorobutane and a fluorinated ketone, RfC(O)CF(CF3)2, where Rf is CF3CF2, CF3CF2CF2, or (CF3)2CF.

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