EP0557796B1 - Schmiermittel für Kältemaschinen,die Tetrafluoroethane als Kühlmittel verwenden - Google Patents
Schmiermittel für Kältemaschinen,die Tetrafluoroethane als Kühlmittel verwenden Download PDFInfo
- Publication number
- EP0557796B1 EP0557796B1 EP93102037A EP93102037A EP0557796B1 EP 0557796 B1 EP0557796 B1 EP 0557796B1 EP 93102037 A EP93102037 A EP 93102037A EP 93102037 A EP93102037 A EP 93102037A EP 0557796 B1 EP0557796 B1 EP 0557796B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- carbon atoms
- group
- lubricant
- tetrafluoroethane
- glycol compound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000314 lubricant Substances 0.000 title claims description 63
- 239000003507 refrigerant Substances 0.000 title claims description 28
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 title claims description 24
- -1 glycol compound Chemical class 0.000 claims description 58
- 125000004432 carbon atom Chemical group C* 0.000 claims description 44
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 26
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 26
- 229920013639 polyalphaolefin Polymers 0.000 claims description 19
- 150000001875 compounds Chemical class 0.000 claims description 18
- 150000004996 alkyl benzenes Chemical class 0.000 claims description 14
- 125000000217 alkyl group Chemical group 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 239000003921 oil Substances 0.000 claims description 10
- 125000002252 acyl group Chemical group 0.000 claims description 9
- WXGNWUVNYMJENI-UHFFFAOYSA-N 1,1,2,2-tetrafluoroethane Chemical compound FC(F)C(F)F WXGNWUVNYMJENI-UHFFFAOYSA-N 0.000 claims description 8
- 125000001931 aliphatic group Chemical group 0.000 claims description 8
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 7
- 125000005702 oxyalkylene group Chemical group 0.000 claims description 7
- 229920000642 polymer Polymers 0.000 claims description 7
- 125000002947 alkylene group Chemical group 0.000 claims description 6
- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 claims description 5
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 claims description 5
- 125000003342 alkenyl group Chemical group 0.000 claims description 5
- 125000000304 alkynyl group Chemical group 0.000 claims description 5
- 125000003118 aryl group Chemical group 0.000 claims description 5
- 239000002199 base oil Substances 0.000 claims description 5
- 150000002430 hydrocarbons Chemical group 0.000 claims description 5
- CRSBERNSMYQZNG-UHFFFAOYSA-N 1-dodecene Chemical compound CCCCCCCCCCC=C CRSBERNSMYQZNG-UHFFFAOYSA-N 0.000 claims description 4
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- 239000004711 α-olefin Substances 0.000 claims description 3
- 229940069096 dodecene Drugs 0.000 claims description 2
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims description 2
- 229920001451 polypropylene glycol Polymers 0.000 claims description 2
- 238000005461 lubrication Methods 0.000 claims 2
- 238000000034 method Methods 0.000 claims 1
- 238000012360 testing method Methods 0.000 description 7
- 150000002334 glycols Chemical class 0.000 description 6
- 230000003301 hydrolyzing effect Effects 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- VOPWNXZWBYDODV-UHFFFAOYSA-N Chlorodifluoromethane Chemical compound FC(F)Cl VOPWNXZWBYDODV-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 2
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 2
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 2
- 235000019404 dichlorodifluoromethane Nutrition 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 2
- 229920001515 polyalkylene glycol Polymers 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001868 water Inorganic materials 0.000 description 2
- 125000000094 2-phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
- 239000004338 Dichlorodifluoromethane Substances 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 239000007866 anti-wear additive Substances 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 125000004369 butenyl group Chemical group C(=CCC)* 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000005827 chlorofluoro hydrocarbons Chemical class 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- IZSANPWSFUSNMY-UHFFFAOYSA-N cyclohexane-1,2,3-triol Chemical compound OC1CCCC(O)C1O IZSANPWSFUSNMY-UHFFFAOYSA-N 0.000 description 1
- FSDSKERRNURGGO-UHFFFAOYSA-N cyclohexane-1,3,5-triol Chemical compound OC1CC(O)CC(O)C1 FSDSKERRNURGGO-UHFFFAOYSA-N 0.000 description 1
- 125000004956 cyclohexylene group Chemical group 0.000 description 1
- 125000004979 cyclopentylene group Chemical group 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 1
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000006078 metal deactivator Substances 0.000 description 1
- 125000006353 oxyethylene group Chemical group 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 125000004817 pentamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 125000002568 propynyl group Chemical group [*]C#CC([H])([H])[H] 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 239000010421 standard material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 125000005023 xylyl group Chemical group 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
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- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/041—Mixtures of base-materials and additives the additives being macromolecular compounds only
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/02—Well-defined hydrocarbons
- C10M105/06—Well-defined hydrocarbons aromatic
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- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
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- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/02—Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation
- C10M107/10—Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation containing aliphatic monomer having more than 4 carbon atoms
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- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/20—Lubricating compositions characterised by the base-material being a macromolecular compound containing oxygen
- C10M107/30—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M107/32—Condensation polymers of aldehydes or ketones; Polyesters; Polyethers
- C10M107/34—Polyoxyalkylenes
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- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/50—Lubricating compositions characterised by the base-material being a macromolecular compound containing silicon
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- C10M111/00—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential
- C10M111/04—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential at least one of them being a macromolecular organic compound
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- C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
- C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M145/24—Polyethers
- C10M145/26—Polyoxyalkylenes
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- C10M155/00—Lubricating compositions characterised by the additive being a macromolecular compound containing atoms of elements not provided for in groups C10M143/00 - C10M153/00
- C10M155/02—Monomer containing silicon
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- C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
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- C10M7/00—Solid or semi-solid compositions essentially based on lubricating components other than mineral lubricating oils or fatty oils and their use as lubricants; Use as lubricants of single solid or semi-solid substances
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- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/06—Well-defined aromatic compounds
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- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/06—Well-defined aromatic compounds
- C10M2203/065—Well-defined aromatic compounds used as base material
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- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/003—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions used as base material
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- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
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- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
- C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms used as base material
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
- C10M2229/0505—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
- C10M2229/051—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing halogen
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
- C10M2229/051—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing halogen
- C10M2229/0515—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing halogen used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
- C10M2229/052—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing nitrogen
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
- C10M2229/052—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing nitrogen
- C10M2229/0525—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing nitrogen used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
- C10M2229/053—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing sulfur
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
- C10M2229/053—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing sulfur
- C10M2229/0535—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing sulfur used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
- C10M2229/054—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing phosphorus
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
- C10M2229/054—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing phosphorus
- C10M2229/0545—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing phosphorus used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
Definitions
- the present invention relates to a lubricant for refrigerating machines employing a refrigerant comprising tetrafluoroethane. More particularly, it relates to a lubricant for refrigerating machines which is used along with a refrigerant comprising a substitute fluorohydrocarbon (hereinafter sometimes referred to as "flon compound”) such as 1,1,1,2-tetrafluoroethane (R-134a).
- fluorohydrocarbon hereinafter sometimes referred to as "flon compound”
- R-134a 1,1,1,2-tetrafluoroethane
- the lubricant is excellent in the performance such as wear resistance, electrical insulating properties, hydrolytic stability, nonhygroscopicity and the like and further has excellent returnability of the lubricant in a compression-type refrigerating cycle (the characteristics that the lubricant is inclined to return to a compressor after it is circulated in the refrigerating cycle).
- a flon compound including a fluorinated hydrocarbon such as dichlorodifluoromethane (R-12) and chlorodifluoromethane (R-22) has been used as the refrigerant.
- a flon compound including a fluorinated hydrocarbon such as dichlorodifluoromethane (R-12) and chlorodifluoromethane (R-22) has been used as the refrigerant.
- a flon compound including a fluorinated hydrocarbon such as dichlorodifluoromethane (R-12) and chlorodifluoromethane (R-22) has been used as the refrigerant.
- R-12 dichlorodifluoromethane
- R-22 chlorodifluoromethane
- EP-A-0 377 122 discloses a lubricating oil for compression-type refrigerator comprising as a main component a polyoxyalkyleneglycol derivative said lubricating oil has favorable compatibility with refrigerants and an excellent lubricating property, and is utilized as the lubricating oil for compression-type refrigerator employing hydrogen-containing flon refrigerants including FLON 134a.
- US-A-4 946 611 disclosed fluorinated polysiloxanes to be used as lubricant for refrigerators which use various Flon compounds as refrigerants.
- polyalkylene glycol compounds and ester compounds thereof both known as compatible with R-134a, have been found to have insufficient wear resistance, along with faulty electrical insulating properties. It has also been found that the polyalkylene glycol compounds are highly hygroscopic and the ester compounds thereof are hydrolytically unstable. Thus the demand for a solution in these problems has been raised in relevant industrial segments.
- the present invention has been completed on the basis of a concept quite contrary to ordinary common knowledge as set forth above, in an effort to find a solution in the problems.
- all these aspects of the performance can be unified by using a substance excellent in wear resistance, insulation resistance and the like as the lubricant, compounding therewith a fluidity improver to improve the fluidity of the lubricant in the presence of a refrigerant (R-134a and the like) and thus providing good returnability of the lubricant in a compression-type refrigerating cycle.
- a lubricant combined even with a new refrigerant has all the required performance including excellent wear resistance, electrical insulating properties, hydrolytic stability and the like and further ensuring excellent returnability of the lubricant.
- the present invention has been accomplished based on this finding.
- an object of the present invention is to provide a lubricant for refrigerating machines employing a refrigerant comprising tetrafluoroethane, which is excellent in the performance such as wear resistance, electrical insulating properties, hydrolytic stability, nonhygroscopicity and the like and further has excellent returnability of the lubricant.
- the lubricant can be used along with a substitute flon refrigerant in a compression-type refrigerating cycle without a hitch.
- Another object of the present invention is to provide a lubricant for refrigerating machines employing a refrigerant comprising tetrafluoroethane, which is especially effective when used in automobile or household air conditioners and refrigerators and the like, having high industrial usefulness.
- the present invention provides a lubricant for refrigerating machines employing a refrigerant comprising 1,1,1,2-tetrafluoroethane or 1,1,2,2-tetrafluoroethane which comprises as an essential component a base oil comprising (A) 60 to 90% by weight of a synthetic oil formed of a poly- ⁇ -olefin or a mixture of a poly- ⁇ -olefin and an alkylbenzene and (B) 10 to 40% by weight of a fluidity improver comprising at least one compound selected from the group consisting of a polyoxyalkylene glycol compound and a polysiloxane compound.
- a base oil comprising (A) 60 to 90% by weight of a synthetic oil formed of a poly- ⁇ -olefin or a mixture of a poly- ⁇ -olefin and an alkylbenzene and (B) 10 to 40% by weight of a fluidity improver comprising at least one compound selected from the group consisting of a polyoxyalky
- the lubricant of the present invention can be suitably used in various refrigerating machines and ordinarily in a compression-type refrigerating cycle comprising a compressor, a condenser, an expansion valve and an evaporator.
- the lubricant of the present invention comprises the components (A) and (B) as the essential components, and the synthetic oil constituting the component (A) is a poly- ⁇ -olefin or a mixture of a poly- ⁇ -olefin and an alkylbenzene.
- poly- ⁇ -olefins can be used and ordinarily are each a polymer of ⁇ -olefin having 8 to 14 carbon atoms and a kinematic viscosity of 10 to 350cSt at 40°C.
- Preferred among them is a polymer of 1-dodecene, a polymer of 1-decene or a polymer of 1-octene, each having a kinematic viscosity of 10 to 350cSt at 40°C.
- a lubricant containing a synthetic oil comprising such a poly- ⁇ -olefin has a lower viscosity at low temperatures in the presence of a tetrafluoroethane refrigerant, and thus returnability of the lubricant is all the more improved.
- alkylbenzenes can be used as well and ordinarily are each an alkylbenzene having a kinematic viscosity of 5 to 500cSt, preferably 10 to 350cSt at 40°C. Meanwhile, either soft or hard alkylbenzene can be used provided that it meets this condition.
- the alkylbenzene is not used singly but in the form of a mixture thereof with said poly- ⁇ -olefin as the synthetic oil as the component (A) in the present invention.
- the mixing ratio of the poly- ⁇ -olefin to the alkylbenzene may be appropriately selected according to circumstances and is not particularly limited.
- the mixture has a poly- ⁇ -olefin content of 5% or more by weight, more preferably 5 to 90% by weight, most preferably, when using high viscosity poly- ⁇ -olefin having a kinematic viscosity of about 50cSt or more at 40°C, 5 to 50 % by weight of the mixture.
- the mixing stability of the poly- ⁇ -olefin and the fluidity improver as the component (B) is improved. This effect is especially remarkable with the use of a polyoxyalkylene glycol compound as the fluidity improver.
- the fluidity improver acts to improve the fluidity of a hydrocarbonic compound at low temperatures (those of the evaporator) in the presence of a small amount of substitute flon refrigerant such as R-134a, so as to provide good returnability of the lubricant in the refrigerating cycle.
- the kinematic viscosity of the fluidity improver is not particularly limited but is ordinarily 2 to 100cSt, preferably 3 to 50cSt at 40°C.
- a typical example thereof is a polyoxyalkylene glycol compound.
- Various polyoxyalkylene glycol compounds can be used and an appropriate one may be selected from them according to the intended use.
- Preferred among them is a polyoxyalkylene glycol compound represented by the general formula (I): wherein R 1 is a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, an alkynyl group having 2 to 10 carbon atoms, an aryl group having 6 to 10 carbon atoms, an aralkyl group having 7 to 10 carbon atoms, an acyl group having 2 to 10 carbon atoms or an aliphatic hydrocarbon group having 2 to 6 bonding links;
- R 2 is an alkylene group having 2 to 6 carbon atoms;
- R 3 is a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, an alkynyl group
- the alkyl group having 1 to 10 carbon atoms may be straight chain, branched chain or cyclic.
- Specific examples of the alkyl group include a methyl group, an ethyl group, a n-propyl group, an isopropyl group, various butyl groups, various pentyl groups, various hexyl groups, various heptyl groups, various octyl groups, various nonyl groups, various decyl groups, a cyclopentyl group, a cyclohexyl group, a phenyl group, a tolyl group, a xylyl group, a benzyl group, a phenethyl group and the like.
- alkyl group having more than 10 carbon atoms leads to the degradation of the effect on improving the fluidity of the lubricant.
- the alkyl group has preferably 1 to 6 carbon atoms.
- An alkyl moiety of said acyl group may be straight chain, branched chain or cyclic.
- Specific examples of the alkyl moiety of the acyl group include a methyl group, an ethyl group, a n-propyl group, an isopropyl group, various butyl groups, various pentyl groups, various hexyl groups, various heptyl groups, various octyl groups, various nonyl groups, a cyclopentyl group, a cyclohexyl group and the like.
- An acyl group having more than 10 carbon atoms leads to the degradation of the effect on improving the fluidity of the lubricant.
- the acyl group has preferably 2 to 6 carbon atoms.
- Said R 1 and R 3 may be same or different one another.
- a plurality of R 3 s in a molecule may be same or different when n is 2 or more.
- R 1 is an aliphatic hydrocarbon group having 1 to 10 carbon atoms and 2 to 6 bonding links
- the aliphatic hydrocarbon group may be either chain or cyclic.
- Examples of the aliphatic hydrocarbon group having 2 bonding links include an ethylene group, a propylene group, a butylene group, a pentylene group, a hexylene group, a heptylene group, an octylene group, a nonylene group, a decylene group, a cyclopentylene group, a cyclohexylene group, a vinyl group, an allyl group, a butenyl group, an ethynyl group, a propynyl group, and the like.
- Examples of the aliphatic hydrocarbon group having 3 to 6 bonding links include a residue after a hydroxyl group is removed from a polyhydric alcohol such as trimethylolpropane, glycerin, pentaerythritol, d ipentaerythritol, sorbitol, 1,2,3-trihydroxycyclohexane and 1,3,5-trihydroxycyclohexane.
- a polyhydric alcohol such as trimethylolpropane, glycerin, pentaerythritol, d ipentaerythritol, sorbitol, 1,2,3-trihydroxycyclohexane and 1,3,5-trihydroxycyclohexane.
- An aliphatic hydrocarbon group having more than 10 carbon atoms leads to the degradation of the effect on improving the fluidity of the lubricant.
- the aliphatic hydrocarbon has preferably 2 to 6 carbon atoms.
- R 2 of said general formula (I) is an alkylene group having 2 to 6 carbon atoms and examples of the oxyalkylene group as a repeating unit include an oxyethylene group, an oxypropylene group, an oxybutylene group, an oxypentylene group and an oxyhexylene group.
- a molecule thereof may comprise either same oxyalkylene groups or two or more different kinds of oxyalkylene groups.
- a molecule thereof comprises the alkylene groups each having at least 3 carbon atoms, more preferably 50% or more by mole of the alkylene groups each having at least 4 carbon atoms per oxyalkylene unit.
- n of said general formula (I) is an integer of 1 to 6 and depends on the number of bonding links of R 1 .
- R 1 is a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group or an acyl group
- n is 1.
- R 1 is an aliphatic hydrocarbon group having 2, 3, 4, 5 or 6 bonding links
- n is 2, 3, 4, 5 or 6, respectively.
- m is a figure satisfying that the average value of mxn is 2 to 40, and when the average value of mxn is out of said range, the object of the present invention is not achieved to a full extent.
- examples of the polyoxyalkylene glycol compound for use in the present invention include a polyoxyalkylene glycol compound containing at least one constitutional unit represented by the general formula (II): wherein R 4 is a monovalent hydrocarbon group having 1 to 10 carbon atoms and R 5 to R 9 are each a hydrogen atom or a monovalent hydrocarbon group having 1 to 10 carbon atoms.
- polyoxyalkylene glycol compounds other than enumerated above can be used in the present invention as well, including those having a glycidyl group, those having a carbonyl bond in the molecule, those resulting from the substitution by a fluorine atom and the like.
- a polyoxypropylene glycol compound, a polyoxybutylene glycol compound, a polyoxypentylene glycol compound and a polyoxyhexylene glycol compound are preferably used in the present invention because of their improvement in the mixing stability.
- Most suitable is a fluidity improver containing 50% or more of at least one compound selected from the group consisting of the polyoxybutylene glycol compound, the polyoxypentylene glycol compound and the polyoxyhexylene glycol compound.
- a polyoxyalkylene glycol compound should contain the oxybutylene, oxypentylene and oxyhexylene units to foot up to 50 or more among oxyalkylene units forming the compound.
- a polysiloxane compound such as dimethylpolysiloxane and a fluoride thereof can be used as the fluidity improver in the present invention as well. It is also effective to use a mixture of 2 or more different fluidity improvers.
- the synthetic oil (A) and the fluidity improver (B) are mixed at a ratio by weight of 60 to 90% of (A) to 10 to 40%, respectively of (B).
- the fluidity of the lubricant is undesirably not improved and therefore the sufficient returnability of the lubricant is not achieved as well.
- wear resistance and the like are undesirably degraded. This is accompanied by the degradation of the fundamental performance required for refrigerating machine lubricant, including the reduction of insulation resistance, worsening of hydrolytic stability, the increase in hygroscopicity and the like.
- the lubricant of the present invention comprises as the essential component the base oil comprising the synthetic oil (A) and the fluidity improver (B) as set forth above and as the need arises various additives can be incorporated therein.
- the additive include an anti-wear additive such as phosphoric acid ester and phosphorous acid ester, an antioxidant, a chlorine scavenger, a metal deactivator, a defoaming agent, a detergent-dispersant, a viscosity index improver, a rust preventive, a corrosion inhibitor and the like.
- the lubricant for refrigerating machines employing the refrigerant comprising tetrafluoroethane as claimed herein is excellent in the performance such as wear resistance, electrical insulating properties, hydrolytic stability, nonhygroscopicity and the like and further has excellent returnability of the lubricant.
- the lubricant of the present invention can be used along with a substitute flon refrigerant in a compression-type refrigerating cycle without a hitch.
- the lubricant of the present invention is especially effective when used in automobile or household air conditioners, refrigerators and the like, having high industrial usefulness.
- the lubricants were evaluated by determining each aspect of the performance thereof in accordance with the following test method:
- a lubricant mixed with 10% of R-134a was collected into a pressure glass tube having a diameter of 8mm, then a steel ball of 3/16in. (4.76 mm) in diameter was introduced therein and the pressure glass tube was sealed.
- the wear test was conducted under the following conditions by using a Falex friction testing machine.
- R-134a was blown at a rate of 5 liter/hour, and a test piece was subjected to wear for 60 minutes under a load of 300lbs (135.9 kg) and at 1,000rpm. Meanwhile, the test pieces such as block and pin were made of a standard material in accordance with ASTM D-3233.
- the electrical insulating properties was evaluated mutatis mutandis according to JIS C-2101 to determine the volume resistivity (room temperature).
- a lubricant 10g of R-134a, 5ml of water and copper and iron catalysts were placed in a pressure container having a capacity of 300cc. Then, the pressure container was sealed and retained at 100°C for 5 days and thereafter the rate of a rise in the total acid number was determined.
- test sample 10g was placed in a 50cc glass container having a diameter of 30mm ⁇ .
- the glass container was introduced into a thermostat-humidistat and allowed to stand for 5 days at a temperature of 25°C and under a humidity of 85% and thereafter the water content of the test sample was determined.
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- Engineering & Computer Science (AREA)
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Claims (16)
- Schmiermittel für Kältemaschinen, die ein Kältemittel verwenden, das 1,1,1,2-Tetrafluorethan oder 1,1,2,2-Tetrafluorethan umfaßt, welches als wesentliche Komponente umfaßt: ein Grundöl, das(A) 60 bis 90 Gew.-% eines synthetischen Öls, das aus einem Poly-α-olefin oder einer Mischung eines Poly-α-olefins und einem Alkylbenzol gebildet wird, und(B) 10 bis 40 Gew.-% eines Fluiditätsverbesserers umfaßt, der durch mindestens eine Verbindung gebildet wird, die aus der Gruppe augewählt wird, die aus einer Polyoxyalkylenglykolverbindung und einer Polysiloxanverbindung besteht.
- Schmiermittel für Kältemaschinen, die ein Kältemittel verwenden, das 1,1,1,2-Tetrafluorethan oder 1,1,2,2-Tetrafluorethan umfaßt, wie im Anspruch 1 beschrieben, das als wesentliche Komponente umfaßt: ein Grundöl, das(A) 60 bis 90 Gew.-% eines synthetischen Öls, das aus einem Poly-α-olefin oder einer Mischung eines Poly-α-olefins und einem Alkylbenzol gebildet wird, und(B) 10 bis 40 Gew.-% eines Fluiditätsverbesserers umfaßt, der aus einer Polyoxyalkylenglykolverbindung gebildet wird.
- Schmiermittel nach Anspruch 1 oder 2, worin das genannte Poly-α-olefin ein Polymer eines α-Olefins mit 8 bis 14 Kohlenstoffatomen und einer kinematischen Viskosität von 10 bis 350 cSt bei 40°C ist.
- Schmiermittel nach Anspruch 3, worin das genannte Polymer eines α-Olefins ein Polymer von 1-Dodecen, 1-Decen oder 1-Octen ist, die jeweils eine kinematische Viskosität von 10 bis 350 cSt bei 40°C besitzen.
- Schmiermittel nach Anspruch 1 oder 2, worin das genannten Alkylbenzol ausgewählt wird aus einem weichen Alkylbenzol und einem harten Alkylbenzol, die jeweils eine kinematische Viskosität von 10 bis 350 cSt bei 40°C besitzen.
- Schmiermittel nach Anspruch 1 oder 2, worin die genannte Mischung des Poly-α-olefins und das Alkylbenzols einen Poly-α-olefingehalt von 5 bis 90 Gew.-% der Mischung aufweist.
- Schmiermittel nach Anspruch 1 oder 2, worin der genannte Fluiditätsverbesserer als Komponente (B) eine kinematische Viskosität von 3 bis 50 cSt bei 40°C besitzt.
- Schmiermittel nach Anspruch 1 oder 2, worin die genannte Polyoxyalkylenglykolverbindung durch die allgemeine Formel (I) dargestellt wird:
R1 [(OR2)mOR3]n (I)
worin R1 ein Wasserstoffatom, eine Alkylgruppe mit 1 bis 10 Kohlenstoffatomen, eine Alkenylgruppe mit 2 bis 10 Kohlenstoffatomen, eine Alkinylgruppe mit 2 bis 10 Kohlenstoffatomen, eine Arylgruppe mit 6 bis 10 Kohlenstoffatomen, eine Aralkylgruppe mit 7 bis 10 Kohlenstoffatomen, eine Acylgruppe mit 2 bis 10 Kohlenstoffatomen oder einer aliphatischen Kohlenwasserstoffgruppe mit 2 bis 6 Bindungsgliedern ist; R2 eine Alkylengruppe mit 2 bis 6 Kohlenstoffatomen ist; R3 ein Wasserstoffatom, eine Alkylgruppe mit 1 bis 10 Kohlenstoffatomen, eine Alkenylgruppe mit 2 bis 10 Kohlenstoffatomen, eine Alkinylgruppe mit 2 bis 10 Kohlenstoffatomen, eine Arylgruppe mit 6 bis 10 Kohlenstoffatomen, eine Aralkylgruppe mit 7 bis 10 Kohlenstoffatomen oder eine Acylgruppe mit 2 bis 10 Kohlenstoffatomen ist; n eine ganze Zahl von 1 bis 6 ist; und m eine Zahl ist, die die Bedingung erfüllt, daß der Durchschnittswert von m x n von 2 bis 40 beträgt. - Schmiermittel nach Anspruch 8, worin die genannte Polyoxyalkylenglykolverbindung 50 % oder mehr pro Mol Alkylengruppen aufweist, die jeweils mindestens 4 Kohlenstoffatome pro Oxyalkyleneinheit je Molekül aufweisen.
- Schmiermittel nach Anspruch 1 oder 2, worin die genannte Polyoxyalkylenglykolverbindung mindestens eine Aufbaueinheit enthält, die durch die allgemeine Formel (II) dargestellt wird:
- Schmiermittel nach Anspruch 8, worin die genannte Polyoxyalkylenglykolverbindung eine Polyoxypropylenglykolverbindung, eine Polyoxybutylenglykolverbindung, eine Polyoxypentylenglykolverbindung oder eine Polyoxyhexylenglykolverbindung ist.
- Schmiermittel nach Anspruch 1 oder 2, worin der genannte Fluiditätsverbesserer der Komponente (B) 50 % oder mehr mindestens einer Verbindung umfaßt, die aus der Gruppe ausgewählt wird, die aus einer Polyoxybutylenglykolverbindung, einer Polyoxypentylenglykolverbindung und einer Polyoxyhexylenglykolverbindung besteht.
- Schmiermittel nach Anspruch 1 oder 2, worin die genannte Polyoxyalkylenglykolverbindung Oxybutyleneinheiten, Oxypentyleneinheiten und Oxyhexyleneinheiten enthält, um bis zu 50 oder mehr unter den die Verbindungen bildenden Oxyalkyleneinheiten zu bilden.
- Verfahren zur Schmierung in Kältemaschinen, die ein Kältemittel verwenden, das 1,1,1,2-Tetrafluorethan oder 1,1,2,2-Tetrafluorethan umfaßt, worin das Schmiermittel nach Anspruch 1 oder 2 verwendet wird.
- Kältesystem, das einen Kompressor, ein Kältemittel, 1,1,1,2-Tetrafluorethan oder 1,1,2,2-Tetrafluorethan umfaßt, und ein Schmiermittel umfaßt, wobei das Schmiermittel das Grundöl nach irgendeinem der Ansprüche 1 bis 13 umfaßt.
- Verwendung eines Schmiermittels nach Anspruch 1 oder 2 zur Schmierung von Kältemaschinen, die ein Kältemittel verwenden, das 1,1,1,2-Tetrafluorethan oder 1,1,2,2-Tetrafluorethan umfaßt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3052892 | 1992-02-18 | ||
| JP30528/92 | 1992-02-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0557796A1 EP0557796A1 (de) | 1993-09-01 |
| EP0557796B1 true EP0557796B1 (de) | 1997-06-11 |
Family
ID=12306308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP93102037A Expired - Lifetime EP0557796B1 (de) | 1992-02-18 | 1993-02-10 | Schmiermittel für Kältemaschinen,die Tetrafluoroethane als Kühlmittel verwenden |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0557796B1 (de) |
| JP (1) | JPH05295384A (de) |
| KR (1) | KR0139612B1 (de) |
| AU (1) | AU655345B2 (de) |
| DE (1) | DE69311396T2 (de) |
| SG (1) | SG72627A1 (de) |
| TW (1) | TW224133B (de) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2129380A1 (en) * | 1993-08-11 | 1995-02-12 | Kenichi Sanechika | Lubricant oil composition comprising a fluorine-containing aromatic compound and an alkyl- or alkyl derivative-substituted aromatic compound, and a refrigerant composition containing the same |
| US6251300B1 (en) | 1994-08-03 | 2001-06-26 | Nippon Mitsubishi Oil Corporation | Refrigerator oil compositions and fluid compositions for refrigerator |
| EP0699742B1 (de) * | 1994-08-03 | 1999-05-19 | Nippon Oil Co. Ltd. | Kältemaschinenölzusammensetzung und Kältemittelzusammensetzung für Kältemaschine |
| US5648018A (en) * | 1995-01-12 | 1997-07-15 | Albemarle Corporation | Ester/polyolefin refrigeration lubricant |
| JP4079469B2 (ja) * | 1996-06-25 | 2008-04-23 | 出光興産株式会社 | 冷凍機油組成物 |
| KR100496780B1 (ko) * | 1996-06-25 | 2005-09-09 | 이데미쓰 고산 가부시키가이샤 | 냉동기오일조성물 |
| TW385332B (en) | 1997-02-27 | 2000-03-21 | Idemitsu Kosan Co | Refrigerating oil composition |
| EP1018538B1 (de) * | 1997-06-17 | 2017-03-22 | Nippon Mitsubishi Oil Corporation | Flüssigkeitzusammensetzung für kühlschrank |
| WO1999036485A1 (en) * | 1998-01-16 | 1999-07-22 | E.I. Du Pont De Nemours And Company | Halogenated hydrocarbon refrigerant compositions containing polymeric oil-return agents |
| JP4809607B2 (ja) * | 2005-01-11 | 2011-11-09 | Ｊｘ日鉱日石エネルギー株式会社 | 組付け油、並びに冷凍空調機器の構成部品の組付け方法 |
| KR20110042284A (ko) * | 2008-07-16 | 2011-04-26 | 다우 글로벌 테크놀로지스 엘엘씨 | 윤활제로서 실릴 종결된 폴리알킬렌 글라이콜을 포함하는 냉매 조성물 및 그의 제조 방법 |
| CN107353973B9 (zh) * | 2016-05-10 | 2022-12-06 | 特灵国际有限公司 | 减少制冷剂溶解度的润滑剂共混物 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3733850A (en) * | 1970-01-16 | 1973-05-22 | Chevron Res | Refrigeration heat pump,and heat engine apparatus |
| DE2503613C3 (de) * | 1975-01-29 | 1979-07-19 | Mobil Oil Ag In Deutschland, 2000 Hamburg | Schmiermittel |
| JPS61266494A (ja) * | 1985-05-20 | 1986-11-26 | Nippon Mining Co Ltd | フロン雰囲気下で用いる潤滑油 |
| JP2543919B2 (ja) * | 1987-12-11 | 1996-10-16 | 出光興産株式会社 | 冷凍機油組成物 |
| WO1990005172A1 (en) * | 1988-11-11 | 1990-05-17 | Asahi Glass Company Ltd. | Tetrafluoroethane composition for a regrigerator |
| ATE124438T1 (de) * | 1988-12-06 | 1995-07-15 | Idemitsu Kosan Co | Vervendung eines specifischen polyalkylenglykol derivats als schmiermittel für kompressorkühlanlagen, verfahren zum schmieren und dieses derivat enthaltende kompressorkühlanlage. |
| WO1991009097A1 (en) * | 1989-12-14 | 1991-06-27 | Idemitsu Kosan Co., Ltd. | Refrigerator oil composition for hydrofluorocarbon refrigerant |
-
1993
- 1993-01-28 AU AU32079/93A patent/AU655345B2/en not_active Ceased
- 1993-02-10 DE DE69311396T patent/DE69311396T2/de not_active Expired - Fee Related
- 1993-02-10 EP EP93102037A patent/EP0557796B1/de not_active Expired - Lifetime
- 1993-02-10 SG SG1996003537A patent/SG72627A1/en unknown
- 1993-02-15 TW TW082101037A patent/TW224133B/zh active
- 1993-02-17 JP JP5027906A patent/JPH05295384A/ja active Pending
- 1993-02-17 KR KR1019930002155A patent/KR0139612B1/ko not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR0139612B1 (ko) | 1998-06-15 |
| EP0557796A1 (de) | 1993-09-01 |
| AU655345B2 (en) | 1994-12-15 |
| DE69311396D1 (de) | 1997-07-17 |
| AU3207993A (en) | 1993-08-19 |
| TW224133B (de) | 1994-05-21 |
| SG72627A1 (en) | 2000-05-23 |
| JPH05295384A (ja) | 1993-11-09 |
| DE69311396T2 (de) | 1997-10-16 |
| KR930018012A (ko) | 1993-09-21 |
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