Stabilized heat transfer compositions, methods and systems
AssigneeHoneywell International Inc.
InventorGREGORY LAURENCE SMITH
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Abstract
The present invention relates to heat transfer compositions comprising refrigerant, lubricant and stabilizer, wherein the refrigerant comprises from about 10% by weight to 100% by weight of trifluoroiodomethane (CF3I), and wherein said lubricant comprises polyol ester (POE) lubricant and/or polyvinyl ether (PVE) lubricant, and wherein said stabilizer comprises an alkylated naphthalene and optionally but preferably an acid depleting moiety.
Claims20
A heat transfer compositions comprising refrigerant, lubricant and stabilizer, said refrigerant comprising from about 5% by weight to 100% by weight of trifluoroiodomethane (CF3I), said lubricant comprising polyol ester (POE) lubricant and/or polyvinyl ether (PVE) lubricant, and said stabilizer comprising alkylated naphthalene, wherein said alkylated naphthalene is present in the composition in an amount of from 1% to less than 10% by weight based on the weight of the alkylated naphthalene and the lubricant.
A stabilized heat transfer composition comprising:
- (a) a lubricant selected from POE lubricant and PVE lubricant;
- and (b) a stabilizer comprising from about 50% by weight to about 99.9% of alkylated naphthalene based on the weight of the stabilizer.
Dependencies are inferred from the claim text.