EP0699742B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Refrigerator oil composition and fluid composition for refrigerator
Assignee: Eneos Corp
•
Filing: 1995-08-01
•
Granted: 1999-05-19
•
Expires: 2015-08-01
Abstract
No abstract record available.
Inventors
- 👤 Katsuya c/o Nippon Oil Co. Ltd. Takigawa
- 👤 Umekichi C/O Nippon Oil Co. Ltd. Sasaki
- 👤 Satoshi c/o Nippon Oil Co. Ltd. Suda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 14:05
CPC Classifications
C; C10; C10M; C10M171/00; C10M171/008; C10M105/00; C10M105/02; C10M105/06; C10M105/08; C10M105/32; C10M105/48; C10M107/00; C10M107/20; C10M107/30; C10M107/32; C10M107/34; C10M129/00; C10M129/02; C10M129/04; C10M129/10; C10M129/16; C10M129/18; C10M129/24; C10M129/66; C10M129/68; C10M133/00; C10M133/02; C10M133/04; C10M133/12; C10M137/00; C10M137/02; C10M137/04; C10M137/08; C10M137/10; C10M169/00; C10M169/04; C10M2203/00; C10M2203/06; C10M2203/065; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/026; C10M2207/027; C10M2207/04; C10M2207/042; C10M2207/08; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/24; C10M2207/28; C10M2207/2805; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/30; C10M2207/302; C10M2207/304; C10M2207/32; C10M2207/325; C10M2207/34; C10M2207/345; C10M2209/00; C10M2209/02; C10M2209/10; C10M2209/103; C10M2209/1033; C10M2209/104; C10M2209/1045; C10M2209/105; C10M2209/1055; C10M2209/106; C10M2209/1065; C10M2209/107; C10M2209/1075; C10M2209/108; C10M2209/1085; C10M2209/109; C10M2209/1095; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/06; C10M2211/08; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/066; C10M2215/067; C10M2215/068; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/043; C10M2223/045; C10N; C10N2010/00; C10N2010/04; C10N2040/00; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
146 words
A refrigerator oil composition for use with an HFC refrigerant
containing HFC-134a and/or HFC-125, characterised in that said
composition comprises a mixed base oil comprising component (A) and
component (B), said component (A) is 70 to 99% by weight of an
alkylbenzene oil containing at least 60% by weight, based on the total weight
of the component (A), of alkylbenzenes having a molecular weight of 200 to
350 and said component (B) is 30 to 1% by weight of a synthetic oil
containing oxygen with the proviso that there is excluded a refrigerator oil
composition consisting of said alkylbenzene oil and at least one member
selected from the group consisting of a phosphorus compound, an epoxy
compound, anti-oxidants of a phenol type, anti-oxidants of an amine type,
anti-wear additives, extreme pressure agents, oiliness improvers, antifoaming
agents, metal inactivators, viscosity index improvers, pour point depressants
and detergent-dispersants.
Claim 2
Dependent Claim
42 words
A refrigerator oil composition according to claim 1, characterised
in that said composition further comprises component (C), said component
(C) being 0.005 to 5.0 parts by weight, based on 100 parts by weight of the
mixed base oil, of a phosphorus compound.
Claim 3
Dependent Claim
152 words
A refrigerator fluid composition, characterised in that said
composition comprises: [I] an HFC refrigerant containing HFC-134a and/or HFC-125, and [II] a refrigerator oil composition which comprises a mixed base oil
comprising component (A) and component (B), said component (A) being
70 to 99% by weight of an alkylbenzene oil containing at least 60% by
weight, based on the total weight of the component (A), of alkylbenzenes
having a molecular weight of 200 to 350 and said component (B) being 30 to
1% by weight of a synthetic oil containing oxygen with the proviso that there
is excluded a refrigerator oil composition consisting of said alkylbenzene oil
and at least one member selected from the group consisting of a phosphorus
compound, an epoxy compound, anti-oxidants of a phenol type, anti-oxidants
of an amine type, anti-wear additives, extreme pressure agents,
oiliness improvers, antifoaming agents, metal inactivators, viscosity index
improvers, pour point depressants and detergent-dispersants.
Claim 4
Dependent Claim
42 words
A refrigerator fluid composition according to claim 3, characterised in that said composition further comprises component (C), said
component (C) being 0.005 to 5.0 parts by weight, based on 100 parts by
weight of the mixed base oil, of a phosphorus compound.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.