CN1637127A - Freezing machine oil for hydrocarbon refrigerant - Google Patents
Freezing machine oil for hydrocarbon refrigerant Download PDFInfo
- Publication number
- CN1637127A CN1637127A CNA2004100966901A CN200410096690A CN1637127A CN 1637127 A CN1637127 A CN 1637127A CN A2004100966901 A CNA2004100966901 A CN A2004100966901A CN 200410096690 A CN200410096690 A CN 200410096690A CN 1637127 A CN1637127 A CN 1637127A
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- Prior art keywords
- oil
- hydrocarbon
- mineral oil
- machine oil
- silicone oil
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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
- 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
-
- 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
- C10N2020/09—Characteristics associated with water
- C10N2020/097—Refrigerants
-
- 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
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/30—Refrigerators lubricants or compressors lubricants
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention obtains a refrigerating machine oil for a hydrocarbon cooling medium, suppressed in bubbling, preventing causing the cavitation of a compressor, and capable of reducing operation noise. This refrigerating machine oil for the hydrocarbon cooling medium is obtained by adding 1-20 ppm of a polyether-modified silicone oil and/or a silicone oil with an average molecular weight of >=80,000 to a base oil consisting mainly of a mineral oil. It is preferable that the mineral oil is <=15 in %CA determined by n-d-M ring analysis, <=50 ppm in nitrogen content and <=2,000 ppm in sulfur content and the hydrocarbon cooling medium is propane and/or isobutane.
Description
Technical field
The present invention relates to can not damage the ozone layer, and the global warming ability is particularly used the refrigerator oil of propane or Trimethylmethane well below the hydrocarbon coolant of Halogen hydrocarbon coolant.
Background technology
Refrigerator is usually by compressor, condenser, expansion mechanism (for example, expansion valve), compositions such as vaporizer, when utilizing the evaporation of the high refrigeration agent of volatility from around capture vaporization heat character cool off, at refrigerator, refrigerator chamber, air-conditioning, use in the display window, the vending machine of refreshment drink or ice cream etc. etc.And in air-conditioning or vending machine etc., the heat that produces when utilizing condensation can be used for heating, and heating keeps beverage or food.
In the past, as above-mentioned refrigeration agent, use trichlorofluoromethane (R11), Refrigerant 12 (R12), chlorodifluoromethane chloride fluorinated hydrocarbons (CFC or HCFC) such as (R22) always.But, because these CFC and HCFC can cause the environmental problem that damages the ozone layer, therefore limit its production and use in the world, now, changed into not chloride, for example, methylene fluoride (R32), Tetrafluoroethane (R134 or R134a), C2H4F2 C2H4F2 chlorine-free fluorinated hydrocarbons (HFC) such as (R152 or R152a), promptly so-called replacement fluorine Leon.
Recently, use in the refrigerator of this replacement fluorine Leon in refrigeration agent, running noise is regarded as problem gradually, in order to reduce this running noise, has attempted the foaming of lubricating oil in the control compressor.For example, someone proposes for synthetic oils such as ester oils is lubricating oil, owing to be difficult to usually bubble, therefore to add silicone oil as pore forming material (patent documentation 1), in addition, because mineral oil is that lubricating oil bubbles easily, therefore to add silicone oil as defoamer, and then, in lubricating base oils, add the fluorochemical of organofluorine compound or silicone compounds as surfactant (patent documentation 2).
But; these replacement fluorine Leons; though do not damage the ozone layer; but because global warming ability height; from the long-term viewpoint of global environment protection also is bad, on the other hand, because the low-molecular-weight lower hydrocarbon of carbonatoms about 1～5 or ammonia etc. do not damage the ozone layer; the global warming ability is compared also very low with aforementioned chlorine system or chlorine-free fluorinated hydrocarbons, therefore gazed at just gradually as the refrigeration agent that is of value to environment.Though these refrigeration agents are also non-mainstream in the past, using from ancient times always, the someone proposes also can use lubricating oil, for example, the mineral oil of cycloalkanes hydrocarbon system or alkane system, alkylbenzene oil, ether oil, ester oil, synthetic oils such as fluorocarbon oil.Usually, since the synthetic oil costliness, use cheaply and the mineral oil that obtains easily more.
But though as the low molecular weight hydrocarbon of refrigeration agent with as the mineral oil consistency height of lubricant, exist and can bubble, the running noise of compressor is big, under the situation of fierceness, the so-called problem that causes cavity takes place simultaneously.And normally used in the past as can be known silicone oil is dissolved in the hydrocarbon coolant, can not bring into play the function as defoamer.
[patent documentation 1] spy opens flat 10-88173 communique
[patent documentation 2] spy opens flat 10-46174 communique
Summary of the invention
The present invention is in order to solve the invention of above-mentioned problem, and the object of the present invention is to provide can control foaming, prevents the cavity of compressor, reduces the freezing machine oil for hydrocarbon refrigerant of running noise.
The present inventor furthers investigate the whipability of the mineral oil lubricant under the hydrocarbon coolant, research found that specific silicone oil is not subjected to the influence of hydrocarbon coolant, can bring into play antifoam performance, until having finished the present invention.
The present invention is to be in the base oil of principal constituent with mineral oil, add polyether-modified silicone oil and/or the molecular-weight average 80 of 1～20ppm, 000 or the freezing machine oil for hydrocarbon refrigerant that constitutes of its above silicone oil, preferably, using the %CA of n-d-M ring analysis as above-mentioned mineral oil is 15 or below it, and nitrogen is 50ppm or below it, sulphur is 2,000ppm or its following mineral oil in addition, use propane and/or Trimethylmethane as hydrocarbon coolant.
Freezing machine oil for hydrocarbon refrigerant of the present invention, having in refrigerator can control foaming, the cavity of compressor does not take place, and can reduce the special result of the running noise of refrigerator.
Refrigerator oil of the present invention, owing in the base oil that with mineral oil is principal constituent, added polyether-modified silicone oil and/or the high silicone oil of molecular-weight average, therefore can control foaming, prevent the generation of the cavity of compressor, reduce running noise, the ice machine oil that helps the hydrocarbon coolant of global environment as use is very useful.
Embodiment
Refrigerator oil of the present invention is a principal constituent with mineral oil, and promptly at least 50 quality % or its are above in the base oil uses mineral oil, but except that mineral oil, also can alkylbenzene mixture oil, and ether oil, the known used for refrigerator lubricating base oil of synthetic wet goods such as ester oil, fluorocarbon oil.The blending ratio of the synthetic wet goods beyond the mineral oil is that standard is less than 50 quality % with the base oil, is preferably 30 quality % or below it, is preferably 10 quality % especially or below it.
As above-mentioned mineral oil, the preferred mineral oil that uses with following character, promptly the %CA that analyzes of n-d-M is 15 or below it, and nitrogen is 50ppm or below it, and sulphur is 2000ppm or below it.The %CA value influences viscosity index widely, and this value becomes greatly then viscosity index step-down, and %CA is that the mineral oil more than 15 is not so good as refrigerator oil.In addition, %CP is 50 or its above mineral oil oilness height, also can be kept oilness even lack the hydrocarbon coolant dilution of oilness, owing to be difficult to take place the abrasion of bearing and scaling loss etc., the therefore preferred %CP that uses is 50 or its above mineral oil.These %CA and %CP are to obtain by the n-d-M ring analysis of stipulating among the ASTM D3238.
In addition, nitrogen that contains in the mineral oil or sulphur bring baneful influence to lubricant parameter sometimes.When nitrogen surpasses 50 ppm by weight, the tendency of bad stability is arranged, therefore preferred 50 ppm by weight or below it.In addition, because sulphur is corrosive, is preferably 2000ppm or below it, in addition,,, therefore preferably exists with 100ppm or more than it owing to can reduce oilness if instead very few.
Such mineral oil, the lubricating oil that can obtain crude oil atmospheric distillation and underpressure distillation, a kind of suitable combination or 2 kinds or its above desolventizing, solvent extraction, hydrogenolysis, dehydrogenation, desolventizing, hydrofinishing, sulfuric acid scrubbing, clay treated process for purification and obtaining.
Refrigerator oil of the present invention is 3～150mm 40 ℃ kinetic viscosities
2/ s is preferably 5～100mm especially
2/ s, and then preferred flow point is at-25 ℃ or machine oil below it.If yield point is higher than-25 ℃, the lubricant of discharging with refrigeration agent from compressor reduces in flowabilities such as expansion mechanism or vaporizers, be trapped in the low-temperature section of refrigerating apparatus and cause the reduction of heat transfer efficiency, or probably have the bearing wear that causes by the lubricant starvation in the compressor, scaling loss etc., therefore not preferred.In addition, more preferably viscosity index is 50 or more than it, special preferably 80 or its above machine oil.In freeze cycle, lubricant becomes high temperature because of compressor spues, and is exposed in the low temperature and in than wide temperature range in the outlet of expansion mechanism and uses.Therefore, need because the viscosity high lubricant of viscosity index with low uncertainty that temperature causes, the i.e. high mineral oil of viscosity index.The many lubricant viscosity index height of chain hydrocarbon that generally contain long-chain, the tendency that has lubricity also to uprise.
As the hydrocarbon coolant that uses among the present invention, can use the lower molecular weight hydrocarbon compound of carbonatoms 1～5, particularly, can use methane, ethane, propane, normal butane, Trimethylmethane, Skellysolve A, iso-pentane, alkane compounds such as neopentane, and cyclopropane, tetramethylene, cyclanes compounds such as pentamethylene etc., and can use the derivative (corresponding to the alkene of above-claimed cpd) of a part of carbon bond for the above-claimed cpd of two keys.In addition, as hydrocarbon coolant, these compounds can use separately, also can or suit more than it to be used in combination with 2 kinds.Wherein, special preferably propane or Trimethylmethane.
The present invention is to be in the base oil of principal constituent with above-mentioned mineral oil, add polyether-modified silicone oil and/or molecular-weight average and be 80,000 or its above silicone oil obtain.So-called polyether-modified silicone oil is shown in following general formula (1), at the side chain of polysiloxane, terminal or the two import the polysiloxane of polyether-based modification, among the present invention, can use in these any.
Herein, in the formula, A
1, A
2, A
3Be-(C
2H
4O) a (C
3H
6O) bR
2, perhaps-R
1(C
2H
4O) a (C
3H
6O) bR
2Shown polyether-based or methyl, A
1, A
2, A
3In have one at least for polyether-based, in addition, m and n are 0～1000 integers, m+n is 10 or more than it.In addition, a represents 0～100 integer in the polyether-based, and b represents 1～100 integer, R
1The alkyl of expression carbonatoms 1～8, R
2The alkyl or the hydrogen of expression carbonatoms 1～8.
On the other hand, for the silicone oil beyond the polyether-modified silicone oil,, be dissolved in the function that can not play froth breaking in the hydrocarbon coolant if molecular-weight average is not 80,000 or more than it.Preferred molecular-weight average is 100,000 or more than it, is preferably 500,000 or it is above especially.In addition, the easy degree from be distributed to base oil considers, preferred molecular-weight average is 1,000,000 or below it.In addition, as the organopolysiloxane of this kind silicone oil, can be to have alkyl, cycloalkyl, any one of aromatic group be as substituent organopolysiloxane, preferred especially polydimethylsiloxane.
These silicone oil with respect to base oil, add 1～20ppm, when interpolation 1ppm is following, can not give full play to defoaming effect, and in addition, if addition surpasses 20ppm, muddiness can take place refrigerator oil, probably can be to the generation baneful influences such as expansion mechanism of refrigerator.Addition is preferably 5～15ppm.
In the refrigerator oil of the present invention, can suitably mix other additive as required.As this additive, can enumerate 2,6 di t butyl phenol, 2,6-di-t-butyl-p-cresol, 4,4-methylene radical-two-(2,6-di-t-butyl-p-Cresol), p, p '-phenol such as dioctyl-diphenylamine system or amine are antioxidant, phenylglycidyl ether, stablizers such as alkyl glycidyl base ether, phosphoric acid trimethylbenzene phenolic ester, high pressure resistant dose of Triphenyl phosphate etc., glyceryl monooleate, glycerine list oleic acid ether, oiliness improvers such as glycerine list lauryl ether, metal inerting agents such as benzotriazole, polydimethylsiloxane, defoamer such as polymethacrylate or system infusion etc.
In addition, can cooperate known detergent dispersant as required, viscosity index rising agent, rust-preventive agent, anticorrosive agent, additives such as yield point depressant.These additives mix with the amount that contains 10 ppm by weight～10 weight % degree with respect to lubricant of the present invention usually.Especially, be antioxidant by phenol system or the amine that adds about 0.01～0.5 weight %, can improve the stability of lubricant significantly, weather resistance.In addition, phosphoric acid trimethylbenzene phenolic ester, phosphoric acid ester such as Triphenyl phosphate are useful as high pressure resistant dose, (for example 0.05～1.0 weight %) can improve sintering loading, lubricating properties such as abrasion performance effectively by a small amount of interpolation.
[embodiment 1]
Below, embodiment is shown, further describe the present invention, but the present invention is not limited to these concrete illustrations.
As base oil, using the alkane with the proterties shown in the table 1 is mineral oil VG10 (base oil A) and cycloalkanes hydrocarbon system mineral oil VG46 (base oil B).
[table 1]
| Base oil A | Base oil B | |
| Kinetic viscosity (mm 2/s)40℃ ?????????????100℃ | ????10.3 ????2.62 | ????55.1 ????6.00 |
| Viscosity index | ????80 | ????14 |
| Sulphur (ppm) | ????585 | ????100 |
| Nitrogen (ppm) | ????0 | ????12 |
| Yield point (℃) | ????-30 | ????-35 |
| N-d-M ring analysis %CA %CN %CP | ????9 ????36 ????55 | ????11 ????42 ????47 |
Used the proterties of commercially available polyether modified silicon oil and non-modified silicon oil (being SHIN-ETSU HANTOTAI's chemical industry (strain) system) shown in the table 2.In addition, KF96H-3 ten thousand in the table 2 and KF96H-1 ten thousand are existing materials as defoamer.
[table 2]
| Type | Polyether-modified | Non-modification | ||||
| Trade(brand)name | KF352 | KF615A | KF96H-1,000,000 | KF96H-500,000 | KF96H-30,000 | KF96H-10,000 |
| 25 ℃ of (mm of viscosity 2/s) | 1600 | 1000 | 1,000,000 | 500,000 | 30,000 | 10,000 |
| Molecular-weight average | - | - | 150,000 | 100,000 | 70,000 | 55,000 |
In base oil, as shown in table 3, add silicone oil and supply with foaming test.
[table 3]
| Base oil | Silicone oil | Addition (ppm) | |
| Embodiment 1 | ????A | ???KF352 | ????5 |
| Embodiment 2 | ????A | ???KF352 | ????10 |
| Embodiment 3 | ????A | ???KF352 | ????15 |
| Embodiment 4 | ????A | ???KF615A | ????10 |
| Embodiment 5 | ????A | KF96H-100 ten thousand | ????10 |
| Embodiment 6 | ????A | KF96H-50 ten thousand | ????20 |
| Embodiment 7 | ????A | KF96H-50 ten thousand/KF352 | ????5/5 |
| Embodiment 8 | ????B | ???KF352 | ????10 |
| Embodiment 9 | ????B | ???KF615A | ????5 |
| Embodiment 10 | ????B | KF96H-100 ten thousand | ????5 |
| Embodiment 11 | ????B | KF96H-50 ten thousand | ????10 |
| Comparative example 1 | ????A | KF96H-3 ten thousand | ????5 |
| Comparative example 2 | ????A | KF96H-3 ten thousand | ????10 |
| Comparative example 3 | ????A | KF96H-3 ten thousand | ????20 |
| Comparative example 4 | ????A | KF96H-1 ten thousand | ????20 |
| Comparative example 5 | ????B | KF96H-3 ten thousand | ????15 |
| Comparative example 6 | ????B | KF96H-1 ten thousand | ????15 |
Foaming test
In the vial (capacity 110ml) of internal diameter 34mm, add 20g sample oil and 20g and hydrocarbon coolant character is similar and for the normal hexane of liquid and stir, placed 10 minutes.Then, the metal tube that internal diameter is 1mm is set,, observes after 1 minute with the logical nitrogen of flow velocity of 60ml/min from the place to 5mm at the bottom of the bottle, after 5 minutes, the state of bubble on the oil meter face when stopping.The results are shown in table 4.
[table 4]
| Bubble (ml) | |||
| After 1 minute | After 5 minutes | When stopping | |
| Embodiment 1 | ????0 | ????0 | ????0 |
| Embodiment 2 | ????0 | ????0 | ????0 |
| Embodiment 3 | ????0 | ????0 | ????0 |
| Embodiment 4 | ????0 | ????0 | ????0 |
| Embodiment 5 | ????0 | ????0 | ????0 |
| Embodiment 6 | ????0 | ????0 | ????0 |
| Embodiment 7 | ????0 | ????0 | ????0 |
| Embodiment 8 | ????0 | ????0 | ????0 |
| Embodiment 9 | ????0 | ????0 | ????0 |
| Embodiment 10 | ????0 | ????0 | ????0 |
| Embodiment 11 | Below 5 | Below 5 | ????0 |
| Comparative example 1 | ????20 | ????30 | ????10 |
| Comparative example 2 | ????20 | ????20 | ????10 |
| Comparative example 3 | ????20 | ????20 | ????0 |
| Comparative example 4 | ????30 | ????30 | ????20 |
| Comparative example 5 | ????10 | ????20 | ????0 |
| Comparative example 6 | ????30 | ????30 | ????20 |
From this result as can be seen, added polyether-modified silicone oil and molecular-weight average and be 80,000 or the embodiment of its above silicone oil, even the hydrocarbon dissolving, bubble also is suppressed.
[embodiment 2]
Below, freezer add in compressor (having the vision slit that can observe the bubble state) 220ml table 3 for formation testing, use the 30g Trimethylmethane as refrigeration agent, be 5～6kg/cm at output pressure
2G, suction pressure is 0kg/cm
2Turn round under the condition of G, observe running just begun with 5 minutes after the bubble state.The results are shown in table 5.
[table 5]
| Bubble state in the compressor | ||
| Entry into service just | The running beginning is after 5 minutes | |
| Embodiment 1 | Trace | Do not have |
| Embodiment 2 | Trace | Do not have |
| Embodiment 3 | Trace | Do not have |
| Embodiment 4 | Trace | Do not have |
| Embodiment 5 | Trace | Do not have |
| Embodiment 6 | Trace | Do not have |
| Embodiment 7 | Trace | Do not have |
| Embodiment 8 | Trace | Do not have |
| Embodiment 9 | Trace | Do not have |
| Embodiment 10 | Trace | Do not have |
| Embodiment 11 | Trace | Do not have |
| Comparative example 1 | Moderate | Moderate |
| Comparative example 2 | Moderate | Moderate |
| Comparative example 3 | Moderate | Moderate |
| Comparative example 4 | In a large number | Moderate |
| Comparative example 5 | Moderate | Moderate |
| Comparative example 6 | In a large number | Moderate |
In the table 5, represent that in a large number vision slit all bubbles, moderate is that 50～80% of vision slit bubbles, 10% or its following foaming of trace expression vision slit.From this result as can be seen, added the embodiment of polyether-modified silicone oil and molecular-weight average 80,000 or its above silicone oil, even also can control foaming in the machine of reality.
Claims (3)
1, a kind of freezing machine oil for hydrocarbon refrigerant is characterized in that, has added polyether-modified silicone oil and/or molecular-weight average 80,000 or its above silicone oil of 1～20ppm in the base oil that with mineral oil is principal constituent.
2, freezing machine oil for hydrocarbon refrigerant as claimed in claim 1 is characterized in that, the %CA that the n-d-M ring analysis of mineral oil obtains is 15 or below it, nitrogen 50ppm or below it, sulphur 2,000ppm or below it.
As the described freezing machine oil for hydrocarbon refrigerant of claim 1～2, it is characterized in that 3, hydrocarbon coolant is propane and/or Trimethylmethane.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP403977/2003 | 2003-12-03 | ||
| JP2003403977A JP2005162883A (en) | 2003-12-03 | 2003-12-03 | Refrigerating machine oil for hydrocarbon cooling medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1637127A true CN1637127A (en) | 2005-07-13 |
| CN100487095C CN100487095C (en) | 2009-05-13 |
Family
ID=34727079
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100966901A Active CN100487095C (en) | 2003-12-03 | 2004-12-03 | Freezing machine oil for hydrocarbon refrigerant |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2005162883A (en) |
| KR (1) | KR101086080B1 (en) |
| CN (1) | CN100487095C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101397522B (en) * | 2007-09-28 | 2012-02-15 | 中国石油化工股份有限公司 | Environment-friendly type refrigerating machine oil composition |
| CN102485871A (en) * | 2010-12-03 | 2012-06-06 | 中国石油天然气股份有限公司 | Refrigerating machine oil composition |
| CN103666646A (en) * | 2012-09-10 | 2014-03-26 | 雅富顿化学公司 | Antifoam additives for use in low viscosity applications |
| CN108977259A (en) * | 2018-09-11 | 2018-12-11 | 山东奇士登润滑科技有限公司 | A kind of synthesis is energy saving to hold water type gas compression machine oil and preparation method thereof |
| CN111448295A (en) * | 2017-12-08 | 2020-07-24 | Jxtg能源株式会社 | Refrigerator oil and working fluid composition for refrigerator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4659373B2 (en) * | 2004-03-04 | 2011-03-30 | Ｊｘ日鉱日石エネルギー株式会社 | Refrigeration oil |
| US8083965B2 (en) | 2004-03-04 | 2011-12-27 | Nippon Oil Corporation | Refrigerating machine oil |
| JP5318358B2 (en) * | 2007-03-27 | 2013-10-16 | Ｊｘ日鉱日石エネルギー株式会社 | Refrigerating machine oil for hydrocarbon refrigerant and refrigerating machine system using the same |
| JP5551295B2 (en) * | 2013-06-12 | 2014-07-16 | Ｊｘ日鉱日石エネルギー株式会社 | Refrigerating machine oil for hydrocarbon refrigerant and refrigerating machine system using the same |
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Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000129250A (en) * | 1998-10-29 | 2000-05-09 | Toshiba Corp | Refrigerating cycle composition, desiccant, refrigerant compressor and refrigerating unit |
| JP2002038135A (en) | 2000-07-27 | 2002-02-06 | Sanyo Electric Co Ltd | Refrigerant and freezing apparatus |
-
2003
- 2003-12-03 JP JP2003403977A patent/JP2005162883A/en active Pending
-
2004
- 2004-12-02 KR KR1020040100162A patent/KR101086080B1/en active IP Right Grant
- 2004-12-03 CN CNB2004100966901A patent/CN100487095C/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101397522B (en) * | 2007-09-28 | 2012-02-15 | 中国石油化工股份有限公司 | Environment-friendly type refrigerating machine oil composition |
| CN102485871A (en) * | 2010-12-03 | 2012-06-06 | 中国石油天然气股份有限公司 | Refrigerating machine oil composition |
| CN103666646A (en) * | 2012-09-10 | 2014-03-26 | 雅富顿化学公司 | Antifoam additives for use in low viscosity applications |
| US9365795B2 (en) | 2012-09-10 | 2016-06-14 | Afton Chemical Corporation | Antifoam additives for use in low viscosity applications |
| CN103666646B (en) * | 2012-09-10 | 2016-08-17 | 雅富顿化学公司 | Antigassing additive for low viscosity application |
| CN111448295A (en) * | 2017-12-08 | 2020-07-24 | Jxtg能源株式会社 | Refrigerator oil and working fluid composition for refrigerator |
| US11365368B2 (en) | 2017-12-08 | 2022-06-21 | Eneos Corporation | Refrigerator oil and hydraulic fluid composition for refrigerators |
| CN111448295B (en) * | 2017-12-08 | 2022-10-04 | Jxtg能源株式会社 | Refrigerator oil and working fluid composition for refrigerator |
| CN108977259A (en) * | 2018-09-11 | 2018-12-11 | 山东奇士登润滑科技有限公司 | A kind of synthesis is energy saving to hold water type gas compression machine oil and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101086080B1 (en) | 2011-11-25 |
| JP2005162883A (en) | 2005-06-23 |
| KR20050053502A (en) | 2005-06-08 |
| CN100487095C (en) | 2009-05-13 |
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