Triglycerides esters

Esters of Q to Cn monocarboxylic acids [1288-1292], acid-methyl esters [1282], and polycarboxylic acid esters [1287], as well as oleophilic monomeric and oligomeric diesters [1293], have been proposed as basic materials for inverted emulsion muds. Natural oils are triglyceride ester oils [1844] and are similar to synthetic esters. Diesters also have been proposed [1293-1297]. 

Lipases, which mainly hydrolyse fatty esters, especially triglyceride esters of fatty acids. 

Herrin, T.R. and Fairgrieve, J.S., Triglyceride Ester of Phosphonoacetic Acid Having Antiviral Activity, U.S. Patent 4,150,125, 1979. 

Fats and oils are triglycerides esters of glycerol and fatty acids. 

This type of alkoxylation chemistry cannot be performed with conventional alkali metal hydroxide catalysts because the hydroxide will saponify the triglyceride ester groups under typical alkoxylation reaction conditions. Similar competitive hydrolysis occurs with alternative catalysts such as triflic acid or other Brpnsted acid/base catalysis. Efficient alkoxylation in the absence of significant side reactions requires a coordination catalyst such as the DMC catalyst zinc hexacyano-cobaltate. DMC catalysts have been under development for years [147-150], but have recently begun to gain more commercial implementation. The use of the DMC catalyst in combination with castor oil as an initiator has led to at least two lines of commercial products for the flexible foam market. Lupranol Balance 50 (BASF) and Multranol R-3524 and R-3525 (Bayer) are used for flexible slabstock foams and are produced by the direct alkoxylation of castor oil. 

The coefficients A and B along with their standard deviations sA and sB are shown in Table 8.3.1. Equation 8.3.1 is invalid for nitrilo- and acetylalkanes. Homologous series with multiple functional groups, such as dialkyl sebacate esters and triglyceride esters, have been studied by Kishore et al. [8]. 

Cao, Y. et al. (2004) Predictive relationships for the effects of triglyceride ester concentration and water uptake on solubility and partitioning of small molecules into lipid vehicldsPharm. Sci., 93 2768-2779. 

Peng W-J (2008) Extraction process for formyl-substituted fatty acid triglyceride ester separation and catalyst recovery. WO 2008/156993... 

Triglyceride esters Methanol H—t—0—B—R3 b Methyl esters Glycerol... 

The fatty acids occur mostly as esters and are the major components of the parenchyma resin in both softwoods and hardwoods. The most important esters are fats (glycerol esters), usually present as triglycerides. Esters of other alcohols, which usually are aliphatic alcohols or of terpenoid nature, are known as waxes. 

Early experiments in the preparation of alkanolamides were begun by Kritchevs-ky (24, 25). It involves condensation reactions of fatty acids, triglycerides, esters, amides, anhydrides, and halides with an alkanolamine. The reaction was carried out at 100-300°C at atmospheric pressure. An important improvement was made by... 

Alkanolamine-Fatty Acid Condensates Made by reaction of methyl or triglyceride ester of fatty acid with equimolar amount of alkanolamine (about 90% alkanolamide content in product from methyl ester, 80% from triglyceride). Mainly based on coconut or purified coconut (lauric) esters. 

Thus, glycerol, the most important starter for the synthesis of polyether polyols for flexible PU foams and for polyether for rigid foams is produced by the hydrolysis of natural triglycerides (esters of glycerol with fatty acids with C6 to C22 carbon atoms), from vegetable or animal resources (reaction 17.1) [1]. Large quantities of glycerol appear in bio-diesel production, by transesterification of natural oils with methanol. 

Ethox. [Ethox] Ethoxylated amines, triglycerides, esters or ethers emulsifier, dispersant, dyeing assistant, lubricant, detergent, softener, wetting agent textiles, industrial lubes. 

Through alkaline hydrolysis (NaOH or KOH at 115 C overnight), hydrazino-fetty acid salt (structure 4 in Figure 3) can be obtained at 90% yield. In the enzymatic pathway, a lipase can hydrolyze the triglyceride ester to release glycerol however, the aza-dicarboxylate ester is not affected. Thus, the... 

Fats and oils are both triglycerides (esters). Fats are solid at room temperature oils are liquid at room temperature. Fats tend to have more saturated fatty acids, whereas oils tend to have more unsaturated fatty acids. 

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