Patent · US Active

Azeotrope-like compositions of E-1,1,1,4,4,4-hexafluoro-2-butene and 1-chloro-3,3,3-trifluoropropene

US8821749B2 · kind B2 · utility

8Cited by

22References

9Claims

0Family size

Assignee

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

Inventor

Mark L. Robin · Middletown, US

Key dates

Filing date	Apr 20, 2011
Grant date	Sep 2, 2014
Priority date	—
Expiry date	Mar 10, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K2205/126
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Azeotropic or azeotrope-like compositions are disclosed. The azeotropic or azeotrope-like compositions are mixtures of E-1,1,1,4,4,4-hexafluoro-2-butene with E-1-chloro-3,3,3-trifluoropropene or 2-chloro-3,3,3-trifluoropropene. Also disclosed is a process of preparing a thermoplastic or thermoset foam by using such azeotropic or azeotrope-like compositions as blowing agents. Also disclosed is a process of producing refrigeration by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as solvents. Also disclosed is a process of producing an aerosol product by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as heat transfer media. Also disclosed is a process of extinguishing or suppressing a fire by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as dielectrics.

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