US 8,075,798 B2 · Hydrofluoroolefin compositions

Abstract

The present invention relates to compositions containing hydrofluoroolefins and to the uses thereof as heat transfer fluids, blowing agents, solvents and aerosols. More particularly, the invention relates to compositions having: 2 to 55% by weight, of 2,3,3,3-tetrafluoropropene, 2 to 55% by weight of HFC-152a and 30 to 55% by weight of HFC-32.

Claims2

Dependent claims

A composition characterized in that it comprises 40% by weight of HFC-32, 50% by weight of 2,3,3,3-tetrafluoropropene and 10% by weight of HFC-152a.

Dependencies are inferred from the claim text.

Facts

Application

12/996,207Filed 14 May 2009

Priority

FR 08 5386011 Jun 2008

Published

US 2011/0084228 A114 Apr 2011

Granted

13 Dec 2011

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

C09K 3/30
Materials not provided for elsewhere: for aerosols
C08J 9/146
Containing carbon, halogen and hydrogen only: only fluorine as halogen atoms
C09K 5/045
Comprising halogenated compounds: containing only fluorine as halogen
C08J 2207/04
Foams characterised by their intended use: aerosol, e.g. polyurethane foam spray

Hydrofluoroolefin compositions

Life of this patent

Abstract

Claims2

Hydrofluoroolefin compositions

Life of this patent

Abstract

Claims2