Patent · US Expired

Azeotropic or pseudo-azeotropic composition and use of these compositions

US6303668A · kind A · utility

3Cited by

3References

16Claims

0Family size

Assignee

SOLVAY (Société Anonyme) · BE

Inventors

Pierre Barthelemy · Jodoigne, BE
Olivier Buyle · Autre-Église, BE
Pierre Dournel · Brussels, BE

Key dates

Filing date	Nov 22, 1999
Grant date	Oct 16, 2001
Priority date	—
Expiry date	Nov 22, 2019

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K2205/32
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

1,1,1,3,3-Pentafluorobutane forms azeotropic or pseudoazeotropic compositions with alkanes possessing 5 or 6 carbon atoms. These compositions can be used in particular as blowing agents in polymeric cellular foams.

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