A lubricating oil composition for refrigerator including a base oil and an acid scavenger, and a compressor using the composition are provided, where the acid scavenger is a polyalkylene glycol derivative represented by a formula (1) as follows: R1—(OR2)e—OR3f (1) and the base oil is at least one c
A lubricating oil composition for refrigerator including a base oil and an acid scavenger, and a compressor using the composition are provided, where the acid scavenger is a polyalkylene glycol derivative represented by a formula (1) as follows: R1—(OR2)e—OR3f (1) and the base oil is at least one compound selected from a group consisting of polyvinyl ether, polyalkylene glycol and an ether-base compound represented by a formula (2) as follows, Ra-(ORb)n-(X)—(ORc)kx-Rd (2) where meanings of respective signs are as described in the specification.
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1. A composition, comprising a lubricating oil composition comprising a base oil; and an acid scavenger added to the base oil, anda refrigerant,whereinthe acid scavenger is a polyalkylene glycol derivative having a PO added mol number of from 7 to 30 and selected from the group consisting of polypro
1. A composition, comprising a lubricating oil composition comprising a base oil; and an acid scavenger added to the base oil, anda refrigerant,whereinthe acid scavenger is a polyalkylene glycol derivative having a PO added mol number of from 7 to 30 and selected from the group consisting of polypropylene glycol diglycidyl ether and polypropylene glycol monoglycidyl ether,the acid scavenger is present in an amount of 1 to 10 mass % per a total amount of the lubricating oil composition,the refrigerant consists of an unsaturated fluorohydrocarbon compound represented by formula (A) CpOqFrRs (A)where R is hydrogen, p is an integer of 2 to 6, q is an integer of 0, r is an integer of 1 to 12 and s is an integer of 0 to 11, wherein at least one unsaturated carbon-carbon bonding is present in the molecule, andthe base oil is polypropylene glycol dimethyl ether. 2. The composition according to claim 1, wherein the kinematic viscosity of the base oil at 100 degrees C. is in a range of from 2 to 50 mm2/s. 3. The composition according to claim 1, wherein the compound represented by the molecular formula (A) is a compound represented by at least one of molecular formulae of C3HF5, C3H2F4 and C3H3F3. 4. The composition according to claim 1, wherein the lubricating-oil composition further comprises at least one additive selected from a group consisting of an extreme pressure agent, an oiliness agent, an antioxidant, a metal deactivator and an antifoaming agent. 5. A heating and/or cooling system comprising the composition according to claim 1. 6. The heating and/or cooling system according to claim 5, wherein a water content within the system is 500 ppm by mass or less while a residual air partial pressure is 13 kPa or less. 7. A refrigerator comprising the composition according to claim 1. 8. The refrigerator according to claim 7, wherein a slide portion of the refrigerator comprises engineering plastic, and/or comprises an organic coating layer or an inorganic coating layer. 9. The refrigerator according to claim 7, wherein the organic coating layer is a coating layer of polytetrafluoroethylene, a coating layer of polyimide, a coating layer of polyamide-imide or a thermosetting insulation layer formed with use of a resin paint containing: a resin base material made of polyhydroxyether resin and polysulfone-base resin; and a cross-linking agent. 10. The refrigerator according to claim 7, wherein the inorganic coating layer is a graphite layer, a diamond-like carbon layer, a tin layer, a chrome layer, a nickel layer or a molybdenum layer. 11. A compressor comprising the refrigerator according to claim 7. 12. The compressor according to claim 11, wherein a slide portion of the refrigerator comprises engineering plastic, and/or comprises an organic coating layer or an inorganic coating layer. 13. The compressor according to claim 11, wherein the engineering plastic is a polyamide resin, a polyphenylene sulfide resin or a polyacetal resin. 14. The compressor according to claim 11, wherein the organic coating layer is a coating layer of polytetrafluoroethylene, a coating layer of polyimide, a coating layer of polyamide-imide or a thermosetting insulation layer formed with use of a resin paint containing: a resin base material made of polyhydroxyether resin and polysulfone-base resin; and a cross-linking agent. 15. The compressor according to claim 11, wherein the inorganic coating layer is a graphite layer, a diamond-like carbon layer, a tin layer, a chrome layer, a nickel layer or a molybdenum layer. 16. The composition according to claim 1, wherein the acid scavenger has a mass average molecular weight (Mw) of 400 to 3000. 17. The composition according to claim 1, wherein the acid scavenger is present in an amount of from 1 to 5 mass % based on the total amount of the lubricating oil composition. 18. The composition according to claim 1, wherein the unsaturated fluorohydrocarbon compound has 2 to 3 carbon atoms. 19. The composition according to claim 18, wherein the unsaturated fluorohydrocarbon compound is selected from the group consisting of 1,2,3,3,3-pentafluoropropene and 2,3,3,3-tetrafluoropropene.
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이 특허에 인용된 특허 (10)
Klug Diana Lynn (Wilmington DE) Minor Barbara Haviland (Elkton MD) Patron Donna Marie (Newark DE) Chisolm Tuneen E. C. (New Castle DE) Sievert Allen Capron (Elkton MD), Azeotrope (like) composition with fluoromethyl trifluoromethyl ether and 1,1-difluoroethane.
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