The disclosure relates to a biobased metal-working fluid (MWF) composition and method for making same, and more particularly metal-working fluid with biobased lubricants with improved emulsion stability. At least 50 wt. % of the base oil component in the MWF concentrate is a plant-derived liquid decarboxylated rosin acid oil (“DCR”). The DCR comprises 50 to 100 wt. % of tricyclic compounds having 18-20 carbon atoms, one or more C═C groups, and m/z (mass/charge) value of 220-280; an oxygen content of <5%; a density of 0.9 to 1.0 g/cm.sup.3 at 20° C.; and an acid value of <10 mg KOH/g. The resulting MWF is characterized as having comparable if not better performance compared to a MWF containing only mineral oil (e.g., Group I or Group II).

The invention addresses a problem of providing a lubricating oil composition for refrigerators excellent in thermal stability for a refrigerant that contains difluoromethane (R32), trifluoroiodomethane (CF.sub.3I) and at least one compound (α) selected from saturated fluorinated hydrocarbon compounds (HFC) except difluoromethane (R32). The lubricating oil composition for refrigerators is used for a refrigerant containing difluoromethane (R32), trifluoroiodomethane (CF.sub.3I) and at least one compound (α) selected from saturated fluorinated hydrocarbon compounds (HFC) except difluoromethane (R32), and contains at least one kind of base oil selected from polyoxyalkylene glycols, polyvinyl ethers, copolymers of a poly(oxy)alkylene glycol or a monoether thereof and a polyvinyl ether and polyol esters, in which the hydroxyl value of the base oil is 15 mgKOH/g or less.

A liquid blend of octylated phenyl-α-naphthylamine, and at least one low molecular weight aromatic ester, wherein the octylated phenyl-α-naphthylamine is present from about 15% to about 35% by weight of the blend, as well as a lubricating composition comprising a lubricant base and an amount of the blend which provides up to 2.0% by weight of the octylated phenyl-α-naphthylamine in the composition.

Lubricating compositions are described, the lubricating compositions comprising a base oil component and an additive component, wherein the additive component comprises a non-silicone anti-foaming agent.

A refrigeration cycle apparatus including a refrigeration circuit, the refrigeration circuit including a compressor, an outdoor heat exchanger, an indoor heat exchanger, and an expansion valve, wherein a refrigerant is sealed within the refrigeration circuit, the refrigerant contains trifluoroiodomethane, the compressor is filled with a refrigerator oil, and the refrigerator oil contains at least one of a first compound represented by the following chemical formula 1 and a second compound represented by the following chemical formula 2:

##STR00001##

An object of the present disclosure is to provide a composition in which disproportionation of a refrigerant is suppressed, a heat cycle system using the composition, and a method for suppressing a disproportionation reaction of a refrigerant. A composition comprising a refrigerant and a refrigeration oil, the refrigerant comprising at least one refrigerant selected from the group consisting of HFO-1141, HFO-1132(E/Z), HFO-1132a, HFO-1123, and FO-1114, the refrigeration oil having a contact angle with a substrate of 0.1°≤Θ≤90°, the substrate comprising at least one member selected from the group consisting of engineering plastics, organic films, inorganic films, glass, and metals.

The present disclosure relates to methods and compositions for making bio-based, biodegradable, and non-bioaccumulating lubricating base oils generated by esterifying alkoxylated polyols (average alkoxylation ≥3) with long-chain (≥C14) saturated and unsaturated fatty acids (FA) or fatty acids modified using industry recognized techniques.

A silole derivative is of formula (I):

##STR00001## each of the groups in the above formula is defined as those in the description. The silole derivative of formula (I) has aggregation-induced emission performance, and is particularly applicable in luminescent parts and devices, fluorescent probes, biological imaging, lubricating oils and greases. A lubricating grease composition has photoluminescence performance, as well as one or more of advantageous anti-oxidation properties, anti-wear properties, extreme pressure properties and anti-rust properties. It is applicable in many mechanical equipment in electrical industry, metallurgical industry, food industry, paper industry, automobile industry and aircraft industry.

Lubricating compositions are described, the lubricating compositions comprising a base oil component and an additive component, wherein the additive component comprises a non-silicone anti-foaming agent.

Described herein are methods of stabilizing the beta hydrogen of glycerol based esters by the insertion of alkoxy groups to significantly improve the thermal, oxidative, and hydrolytic stability of the ester and allow for controlling the molar density of esters bonds in the lubricants to maximize hydrolytic stability while maintaining biodegradability and further improving performance properties.