摘要:
Disclosed is the use of an alkoxylated fatty alcohol of formula (I), RO—(CH2—CHR′—O)n—(CH2CH2—O)m—H, wherein R stands for a saturated and/or unsaturated alkyl moiety containing 12 to 22 carbon atoms, R′ is methyl, ethyl or propyl, m represents a number of 1 to 12, preferably 4 to 10, and n represents a number of 1 to 10, preferably 2 to 8, as an emulsifier in metalworking fluids which also contain at least water and one oil component, non-miscible with water, and, optionally, further ingredients, and where the fatty alcohol which forms the R moiety has a iodine value of 15 to 75 g I2/100 g.
摘要:
A dielectric insulating fluid composition for a transformer including a trimethylol propane ester corresponding to general formula I: where R1, R2, and R3 are the same or different and each represents a linear or branched alkyl group containing 5 to 11 carbon atoms, where an ester having a viscosity of 300° C. is provided.
摘要:
Processes for producing polyester amides, by reacting a polyisobutylene with a first reagent selected from the group consisting of at least monounsaturated acids having from 3 to 21 carbon atoms and derivatives thereof; and a second reagent selected from the group consisting of monoethanolamine and alkylamines of the general formula R—NH2, wherein R represents an alkyl group having from 1 to 4 carbon atoms; are described. The polyester amides thus produced and their uses in stabilizing asphaltenes in crude oil and crude oil derivatives are also described.
摘要:
A composition comprising alkyl esters, with a C1-C8 alkyl group, and partial glycerides, with a free glycerol content of, at most, 2%, by weight, based on the weight of the composition, derived in an enzymatically-catalyzed reaction from saturated or unsaturated, straight or branched C8-C22 fatty acids of vegetable oils, and useful, inter alia, in biofuels, such as biodiesel, and as an additive for improving the lubricating performance of fuel compositions.
摘要:
A composition comprising alkyl esters, with a C1-C8 alkyl group, and partial glycerides, with a free glycerol content of, at most, 2%, by weight, based on the weight of the composition, derived in an enzymatically-catalyzed reaction from saturated or unsaturated, straight or branched C8-C22 fatty acids of vegetable oils, and useful, inter alia, in biofuels, such as biodiesel, and as an additive for improving the lubricating performance of fuel compositions.
摘要:
Carboxylic acid esters which contain as the alcohol component trimethylolpropane and as the acid component a mixture of (i) linear saturated fatty acids having 8 to 18 C atoms and (ii) linear mono- or polyunsaturated fatty acids having 12 to 22 C atoms, wherein the molar ratio of (i):(ii) is in the range of from 3:1 to 1:3, show a good stability to oxidation and are suitable as base oils for hydraulic oils.