A liquid anti-friction composition includes an ester product having a number average molecular weight that is greater than 3800 g/mol, and obtained by subjecting a mixture that includes diglycerol, a monobasic acid component, and a dibasic acid component to an esterification reaction. The monobasic acid component includes at least one C.sub.14-C.sub.24 branched chain fatty acid.

To provide a composition for a heat cycle system, which comprises a working fluid for heat cycle which has a low global warming potential and high stability, and which can replace R410A, and a heat cycle system employing the composition. A composition for a heat cycle system, which comprises a working fluid for heat cycle containing trifluoroethylene, and a stabilizer for preventing deterioration of the working fluid for heat cycle, such as an oxidation resistance-improving agent, a heat resistance-improving agent or a metal deactivator, and a heat cycle system employing the composition for a heat cycle system.

To provide a composition for a heat cycle system, which comprises a working fluid for heat cycle which has a low global warming potential and high stability, and which can replace R410A, and a heat cycle system employing the composition. A composition for a heat cycle system, which comprises a working fluid for heat cycle containing trifluoroethylene, and a stabilizer for preventing deterioration of the working fluid for heat cycle, such as an oxidation resistance-improving agent, a heat resistance-improving agent or a metal deactivator, and a heat cycle system employing the composition for a heat cycle system.

To provide a composition for a heat cycle system, which comprises a working fluid for heat cycle which has a low global warming potential and high stability, and which can replace R410A, and a heat cycle system employing the composition. A composition for a heat cycle system, which comprises a working fluid for heat cycle containing trifluoroethylene, and a stabilizer for preventing deterioration of the working fluid for heat cycle, such as an oxidation resistance-improving agent, a heat resistance-improving agent or a metal deactivator, and a heat cycle system employing the composition for a heat cycle system.

To provide a composition for a heat cycle system, which comprises a working fluid for heat cycle which has a low global warming potential and high stability, and which can replace R410A, and a heat cycle system employing the composition. A composition for a heat cycle system, which comprises a working fluid for heat cycle containing trifluoroethylene, and a stabilizer for preventing deterioration of the working fluid for heat cycle, such as an oxidation resistance-improving agent, a heat resistance-improving agent or a metal deactivator, and a heat cycle system employing the composition for a heat cycle system.

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.

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.

The instant invention involves the use of simple and complex carboxyl esters, or mixtures thereof, of carboxyl end-capped-polytetramethylene glycols of specific structure to minimize the elastohydrodynamic shear strength of these types of fluids.

The instant invention involves the use of simple and complex carboxyl esters, or mixtures thereof, of carboxyl end-capped-polytetramethylene glycols of specific structure to minimize the elastohydrodynamic shear strength of these types of fluids.

A refrigeration lubricant includes a dipentaerythritol ester which is formed by subjecting a dipentaerythritol and a fatty acid composition to an esterification reaction. The fatty acid composition includes a fatty acid mixture and a C.sub.9 branched chain fatty acid. The fatty acid mixture includes at least two straight chain fatty acids selected from the group consisting of a C.sub.7 straight chain fatty acid, a C.sub.8 straight chain fatty acid, a C.sub.9 straight chain fatty acid, and a C.sub.10 straight chain fatty acid. A working fluid including a refrigerant and the refrigeration lubricant is also provided.