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US 7,279,451 B2Granted
Compositions containing fluorine substituted olefins
AssigneeHoneywell International Inc.
InventorsRajiv R. Singh, Hang T. Pham, Ian Shankland
Life of this patent
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Abstract
The use to e of tetrafluoropropenes, particularly (HFO-1234) in a variety of applications, including refrigeration equipment, is disclosed. These materials are generally useful as refrigerants for heating and cooling, as blowing agents, as aerosol propellants, as solvent composition, and as fire extinguishing and suppressing agents.
Claims50
A heat transfer composition comprising:
- (a) at least one fluoroalkene of Formula II:
- where
- R′ is (CR2)nY,
- Y is CF3
- each R is independently Cl, F, I or H
- and n is 0 or 1
- provided that at least one R on the terminal unsaturated carbon is H and at least one of the remaining Rs is a halogen located on the unsaturated non-terminal carbon, said compound of Formula II being present in the composition in an amount of from about 5% by weight to about 99% by weight, and wherein said heat transfer composition has a Global Warming Potential (GWP) of not greater than about 1000.
4 more elements
Dependencies are inferred from the claim text.