EP0448402A2
Expired / Lapsed
EP
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Refrigerator oil composition
Assignee: Adeka Corp
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Filing: 1991-03-21
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Granted: —
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Expires: 2011-03-21
Abstract
Abstract A refrigerator lubricant composition comprises an ester compound obtained from a fatty acid having 2 to 6 carbon atoms and a neopentyl polyol and 0.01 to 25 percent by weight of an epoxy compound.
Inventors
- 👤 Tamiji Kamakura
- 👤 Yukio Tatsumi
- 👤 Kimiyoshi Namiwa
- 👤 Noriyoshi Tanaka
- 👤 Masato Namiki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 11:16
CPC Classifications
C; C10; C10M; C10M169/00; C10M169/04; C10M169/044; C09; C09K; C09K5/00; C09K5/02; C09K5/04; C09K5/041; C09K5/044; C09K5/045; C10M105/00; C10M105/08; C10M105/32; C10M105/38; C10M105/42; C10M129/00; C10M129/02; C10M129/16; C10M129/18; C10M145/00; C10M145/18; C10M145/24; C10M145/26; C10M145/36; C10M171/00; C10M171/008; C09K2205/00; C09K2205/24; C10M2203/00; C10M2203/06; C10M2207/00; C10M2207/04; C10M2207/042; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/2835; C10M2207/286; C10M2207/30; C10M2207/301; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/106; C10M2209/108; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/06; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2219/00; C10M2219/10; C10M2219/104; C10M2219/108; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10N; C10N2040/00; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
60 words
A refrigerator lubricant composition characterised in that it comprises an ester compound and an epoxy compound the ester compound thus obtained from a fatty acid having 2 to 6 carbon atoms and a neopentyl polyol and the epoxy compound being present in an amount of from 0.01 to 25 percent by weight based on the weight of the ester compound.
Claim 2
Dependent Claim
38 words
A composition as claimed in Claim 1, characterised in that said fatty acid is selected from the group consisting of straight chain saturated fatty acids, branched saturated fatty acids, straight chain dicarboxylic acids and branched chain dicarboxylic acids.
Claim 3
Dependent Claim
53 words
A composition as claimed in claim 2, characterised in that said fatty acid is selected from the group consisting of acetic acid, propanoic acid, butanoic acid, pentanoic acid, hexanoic acid, 2-methypropanoic acid, 2-methylbutanoic acid, 3-methylpentanoic acid, trimethylacetic acid, 2-methylpentanoic acid, 3-methylpentanoic acid, 4-methylpentanoic acid, 2-ethylbutanoic acid, 2,2-dimethylbutanoic acid, 3,3-dimethylbutanoic acid and 1,4-butanedicarboxylic acid.
Claim 4
Dependent Claim
29 words
A composition as claimed in any of Claims 1 to 3, characterised in that the neopentyl polyol has at least three hydroxyl groups and 50 or less carbon atoms.
Claim 5
Dependent Claim
42 words
A composition as claimed in any of Claims 1 to 4, characterised in that said epoxy compound has at least one glycidyl ether group and is an aliphatic glycidyl ether compound, an aromatic glycidyl ether compound or a polyalkyleneglycol diglycidyl ether compound.
Claim 6
Dependent Claim
26 words
A refrigerator oil composition which comprises a chlorine-free fluorocarbon and an effective amount of a refrigerator lubricant composition claimed in any of claims 1 to 5.
Claim 7
Dependent Claim
16 words
A refrigerator oil composition as claimed in claim 6, in which the chlorine-free fluorocarbon is 1,1,1,2-tetrafluoroethane.
Claim 8
Dependent Claim
34 words
A refrigerator oil composition characterised by comprising (A) 1,1,1,2-tetrafluoroethane and (B) a composition as claimed in any of Claims 1 to 5 in a volume ratio of (A) to (B) of 1:99 to 99:1.
References Cited (Backward Citations)
No citation records indexed.
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