摘要:
A lubricating oil composition for refrigerator is provided by adding base oil with biphenols selected from 4,4'-methylenebis(2,6-di-t-butyl-phenol), 2'2-methylenebis(4-methyl-6-t-butylphenol), 2,2'-methylenebis(4-ethyl-6-t-butylphenol) and 4,4'-butylidenebis(3-methyl-6-t-butylphenol).
摘要:
A refrigerator oil composition contains base oil and polyalkylene glycol (PAG) block copolymer. The PAG block polymer is represented by the following formula (1).
R 1 [(OR 2 ) m (OE) n OR 3 ] 1 (1)
In the formula: R 1 represents a hydrocarbon residue having 1 to 10 carbon atoms; R 2 represents an alkenyl group having 3 to 6 carbon atoms; E represents an ethylene group; R 3 represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms; m and n each represent a positive integer, a ratio of m to n (m/n) being 99/1 to 50/50; and I represents an integer in a range of 1 to 100.
摘要翻译:冷冻机油组合物含有基础油和聚亚烷基二醇(PAG)嵌段共聚物。 PAG嵌段聚合物由下式(1)表示。 R 1 [(OR 2)m(OE)n OR 3] 1(1)式中,R 1表示碳原子数1〜10的烃基, R2表示具有3至6个碳原子的烯基; E代表亚乙基; R3代表氢原子或具有1至10个碳原子的烷基; m和n各自表示正整数,m与n之比(m / n)为99/1至50/50; I代表1到100范围内的整数。
摘要:
The present invention proposes a lubricating oil for refrigerators comprising, as the base oil, a polyester-based derivative or a polyvinyl ether derivative and a polycarbonate-based oxygenated compound; a polyoxyalkylene glycol derivative; or a polyester-based derivative or a polyvinyl ether derivative and a polyoxyalkylene glycol derivative. The lubricating oil exhibits excellent miscibility with a refrigerant having one carbon atom and no chlorine atoms and, in particular, with difluoromethane and provides a hydraulic fluid composition exhibiting excellent antiwear, lubricity and stability.
摘要:
Provided is an anti-wear agent capable of furnishing an epoxy resin coating film with anti-wear properties. The anti-wear agent is characterized in containing an alicyclic difunctional epoxy and a polymerization initiator or is characterized in containing a difunctional bisphenol A-type epoxy resin, a leveling agent and a polymerization initiator.
摘要:
A lubricating oil for refrigerating machines which comprises an oxygenic compound as a base oil and which, when incorporated into a chlorine-free C1 refrigerant in an amount in the range of 3 to 50 wt.% based on the sum of these, is compatible therewith in any of the concentrations at a temperature of -10°C or lower; and a hydraulic composition for refrigerating machines which comprises (A) a chlorine-free C1 refrigerant and (B) the lubricating oil. In the composition, the oil has excellent compatibility with the chlorine-free C1 solvent, especially difluoromethane. The composition is excellent in antiwearing properties, lubricating properties, stability, etc.
摘要:
A refrigerator oil composition contains base oil and polyalkylene glycol (PAG) block copolymer. The PAG block polymer is represented by the following formula (1). €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒR 1 [(OR 2 ) m (OE) n OR 3 ] 1 €ƒ€ƒ€ƒ€ƒ€ƒ(1) In the formula: R 1 represents a hydrocarbon residue having 1 to 10 carbon atoms; R 2 represents an alkenyl group having 3 to 6 carbon atoms; E represents an ethylene group; R 3 represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms; m and n each represent a positive integer, a ratio of m to n (m/n) being 99/1 to 50/50; and I represents an integer in a range of 1 to 100.
摘要:
Esters of estolides derived from oleic acids are characterized by superior properties for use as lubricant base stocks. These estolides may also be used as lubricants without the need for fortifying additives normally required to improve the lubricating properties of base stocks.
摘要:
Esters of estolides derived from oleic acids are characterized by superior properties for use as lubricant base stocks. These estolides may also be used as lubricants without the need for fortifying additives normally required to improve the lubricating properties of base stocks.
摘要:
Provided is an anti-wear agent capable of furnishing an epoxy resin coating film with anti-wear properties. The anti-wear agent is characterized in containing an alicyclic difunctional epoxy and a polymerization initiator or is characterized in containing a difunctional bisphenol A-type epoxy resin, a leveling agent and a polymerization initiator.