摘要:
The invention relates to a composition comprising: - at least 95 wt% of a castor oil fatty acid methyl ester mixture; - an additive that lowers the pour point; the maximum pour point of the composition being 0°C. The invention also relates to the use of said composition as a lubricant, formwork removal agent for concrete, degreasing agent or cleaning agent.
摘要:
A biodegradable lubricating oil composition includes (A) an ester being obtained by reacting a saturated aliphatic carboxylic acid, a straight-chain aliphatic dicarboxylic acid and a polyhydric alcohol together, the ester having a kinematic viscosity in a range from 400 mm 2 /s to 1000 mm 2 /s at 40 degrees C and an acid value of 0.5 mgKOH/g or less; (B) an ester being obtained by reacting a straight-chain saturated aliphatic carboxylic acid with a polyhydric alcohol, the ester having an acid value of 0.5 mgKOH/g or less; and (C) a phosphate amine salt being obtained by reacting an acidic phosphate with an alkylamine.
摘要:
In one aspect, compositions are described herein. In some embodiments, a composition comprises an ester reaction product of a structurally symmetric alkoxylated polyol and a carboxylic acid or carboxylic acid equivalent.
摘要:
A biodegradable lubricating oil composition includes (A) an ester represented by a formula (1) below, the ester having a kinematic viscosity in a range from 300 mm 2 /s to 1000 mm 2 /s at 40 degrees C and an acid value of 0.5 mgKOH/g or less; (B) an ester being obtained by reacting a straight-chain saturated aliphatic carboxylic acid with a polyhydric alcohol, the ester having an acid value of 0.5 mgKOH/g or less; and (C) a phosphate amine salt being obtained by reacting an acidic phosphate with an alkylamine. In the formula, Ra is a hydrocarbyl group having 4 to 20 carbon atoms, Rb is a hydrocarbyl group having 4 to 18 carbon atoms, Rc is an acyl group having 1 to 10 carbon atoms, and n is an integer of 3 to 15.
摘要:
A biodegradable lubricating oil composition includes (A) an ester being obtained by reacting a saturated aliphatic carboxylic acid, a straight-chain aliphatic dicarboxylic acid and a polyhydric alcohol together, the ester having a kinematic viscosity in a range from 400 mm 2 /s to 1000 mm 2 /s at 40 degrees C and an acid value of 0.5 mgKOH/g or less; (B) an ester being obtained by reacting a straight-chain saturated aliphatic carboxylic acid with a polyhydric alcohol, the ester having an acid value of 0.5 mgKOH/g or less; and (C) a phosphate amine salt being obtained by reacting an acidic phosphate with an alkylamine.
摘要:
1. A liquid composition for use in compression refrigeration, air-conditioning and heat pump systems comprises: (A) a fluoroalkene containing from 2 to 5 carbon atoms and at least 1 but no more than 2 double bonds; and (B) an effective amount to provide lubrication of an essentially miscible organic lubricant comprised of carbon, hydrogen and oxygen and having a ratio of oxygen to carbon effective to provide a degree of miscibility with said fluoroalkene so that when up to five weight per cent of lubricant is added to said fluoroalkene the mixture has one liquid phase at at least one temperature between -40 and +70°C, wherein said organic lubricant is a polyalkylene glycol having a viscosity in the range from 20 to 200 centistokes at about 37°C.