摘要:
The present invention relates to a lubricated refrigerant for use in refrigerators employing hydrofluorocarbon coolants such as R 134a, R 32, R 125 and the like. The lubricated refrigerant contains fluorocarbon coolant, synthetic oil and a carbodiimide compound represented by the following general formula. R.sub.1 --N.dbd.C.dbd.N--R.sub.2, wherein R.sub.1 and R.sub.2 represent hydrogen atoms or hydrocarbly groups or nitrogen and/or oxygen containing hydrocarbly groups, and R.sub.1 and R.sub.2 may be the same or different groups. The refrigerant composition according to the present invention preferably contains said hydrofluorocarbon coolant and said lubricant at a given blending ratio.
摘要:
The object of the present invention is to provide a lubricant for refrigerators having good compatibility with chlorine-free Flon-type coolants, good lubricity and resistant to hygroscopicity and a composition for refrigerators using this lubricant. This lubricant contains a monomethylether of polyoxyethyleneoxypropyleneglycol where the end group at the hydrogen terminal is an oxyethylene group, represented by the following general formula (1): CH3O(AO)m(CH2CH2O)nH wherein the AO group represents oxypropylene group, or copolymeric group of oxypropylene groups and oxyethylene groups wherein the copolymeric form may be a block type and/or a random type, m is a number of 1≦m≦50, n is a number of 1≦n≦10, and the content of the oxyethylene group in the compound ranges from 5 to 60 percent by weight. A composition for refrigerators using said lubricant is also provided.
摘要翻译:本发明的目的是提供一种与无氯Flon型冷却剂具有良好相容性,良好的润滑性和耐吸湿性的冰箱的润滑剂,以及使用该润滑剂的冰箱组合物。该润滑剂含有聚氧乙烯氧基丙二醇的单甲醚,其中末端 氢原子基团是由以下通式(1)表示的氧化乙烯基团:其中AO基团表示氧化亚丙基,或氧化丙烯基团和氧化乙烯基团的共聚基团,其中共聚形式可以是嵌段型和/或 随机型,m为1 <= m <= 50的数,n为1 <= n <10的数,化合物中氧乙烯基的含量为5〜60重量%。 还提供了使用所述润滑剂的冰箱组合物。
摘要:
A lubricant for use in a refrigerator which operates with a chlorine-free Flon (fluorocarbon)-type refrigerant whose molecules do not contain chlorine. The lubricant contains a synthetic oil, and molybdenumoxysulfide diorganophosphorodithioate given by the following formula (1) and/or molybdenumoxysulfide diorganodithiocarbamate given by the following formula (2), the content of the compounds of formulae (1) and (2) in total ranges from 0.1 to 10 wt % to the content of the synthetic oil: {(RO)2PS2}2Mo2SXOY (1) where R represents a hydrocarbon group having 3 to 20 carbon atoms, and X and Y are numbers which meet the conditions of O≦X≦4, 0≦Y≦4 and X+Y=4; and (R′2NCS2)2Mo2SX′OY′ (2) where R′ is a hydrocarbon group having 3 to 20 carbon atoms and X′ and Y′ are numbers which meet the conditions of )≦X′≦4, 0≦Y′≦4 and X′+Y′=4.
摘要翻译:一种用于冰箱的润滑剂,其用分子不含氯的无氯Flon(氟碳)型制冷剂操作。 润滑剂含有合成油和由下式(1)给出的氧化钼二硫化物二有机二硫代磷酸酯和/或由下式(2)给出的二氧硫化二硅二有机二硫代氨基甲酸酯,式(1)和(2)化合物的含量总计为 相对于合成油的含量为0.1〜10重量%:其中R表示碳原子数3〜20的烃基,X和Y为满足O <= X <= 4,0 <= Y < = 4,X + Y = 4; 并且其中R'是具有3至20个碳原子的烃基,X'和Y'是满足条件的数字)= = X'<= 4,0 <= Y'<= 4和X'+ Y'= 4。
摘要:
The objective of the present invention resides in providing a lubricant for refrigerators that reacts rapidly with free acids and contains a stabilizer that has good compatibility with a chlorine-free Flon-thpe coolant such as Flon 134a and the like whose molecules do not contain chlorine. The lubricant for refrigerators employing a chlorine-free Flon-type coolant in accordance with the present invention 100 parts by weight of a synthetic oil and is compounded with 0.05 to 15 parts by weight of an alicyclic epoxy compound having one or more functional groups represented by the following formula: ##STR1## (wherein R.sub.1 and R.sub.2 independently represent a hydrogen or methyl group, and may be the same or different).
摘要:
Disclosed is a novel sulfidoxymolybdenum dialkylphosphorodithioate represented by the following general formula (I): ##STR1## wherein R stands for a secondary alkyl group having 4 to 30 carbon atoms and four R's may be the same or different, and X stands for O or S and four X's may be the same or different.This compound is very valuable as the lubricant additive.
摘要:
A lubricant composition for refrigerators using Flon 134a comprises at least 80 percent by weight of a specific type of polyoxethylene glycol dialkyl ether having a kinematic viscosity of 6 to 500 cSt at 40 degree centigrade.
摘要:
A less malodorous alkanediol composition, a process for producing the alkanediol composition efficiently, and a cosmetic containing the alkanediol composition are provided.An alkanediol composition contains 0.005 parts by mass or less of ester compound per 100 parts by mass of alkanediol compound having four or more carbon atoms. An alkanediol composition contains 0.2 parts by mass or less of dioxane compound per 100 parts by mass of alkanediol compound having four or more carbon atoms. Furthermore, an ether-containing dihydric alcohol is preferably 0.3 parts by mass or less per 100 parts by mass of alkanediol compound.
摘要:
A less malodorous alkanediol composition, a process for producing the alkanediol composition efficiently, and a cosmetic containing the alkanediol composition are provided. An alkanediol composition contains 0.005 parts by mass or less of ester compound per 100 parts by mass of alkanediol compound having four or more carbon atoms. An alkanediol composition contains 0.2 parts by mass or less of dioxane compound per 100 parts by mass of alkanediol compound having four or more carbon atoms. Furthermore, an ether-containing dihydric alcohol is preferably 0.3 parts by mass or less per 100 parts by mass of alkanediol compound.
摘要:
A lubricant for a refrigerator using ammonia as the refrigerant, which contains an additive selected from antioxidant, anti-wear additive and metal deactivator, and the polyether compound represented by the following general formula (1) or (2): X{—O—(AO)n—H}p (1) X{—O—(AO1)a—(AO2)b—H}p (2)