Stabilized heat transfer compositions, methods and systems
AssigneeHoneywell International Inc.
InventorsAnkit Sethi, Ryan Hulse, Christopher Roger, Alexey Kruglov, Haridasan Nair
Life of this patent
Estimating the term…
Abstract
The present invention relates to heat transfer compositions comprising refrigerant, lubricant and stabilizer, wherein the refrigerant comprises from about 5% by weight to 100% by weight of trans-1,2-difluorethylene (R1132(E)), 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 composition comprising refrigerant, lubricant and stabilizer, said refrigerant comprising from about 5% by weight to 100% by weight of trans-1,2-difluorethylene (R1132(E)), said lubricant comprising polyol ester (POE) lubricant and/or polyvinyl ether (PVE) lubricant, and said stabilizer comprising from 1% to less than 10% by weight of AN4 and from about 0.05 to % about 2.5% of one or more compounds according to AMD1, wherein said amounts of said stabilizer components is based on the weight of the lubricant and stabilizer.
A heat transfer composition comprising refrigerant, lubricant and stabilizer, said refrigerant comprising from about 5% by weight to 100% by weight of trans-1,2-difluorethylene (R1132(E)), said lubricant comprising polyol ester (POE) lubricant and/or polyvinyl ether (PVE) lubricant, and said stabilizer comprising AN4, AN5 or AN10 and combinations of these and an ADM comprising ADM4, ADM5, ADM5A or ADM6 and combinations of these, wherein said ANs and ADMs together comprises from 1% to less than 10% by weight based on the weight of the ANs, ADMs and the lubricant.
Dependencies are inferred from the claim text.