Nondrying oils

Total includes small amounts of other drying oils, such as safflower oil, consumed by individual consumers, and nondrying oils, such as castor oil and coconut oil, probably used in making nondrying alkyds presumably does not include dehydrated castor oil. 

Formation of peroxides by exposure to air and their involvement in polymerization processes is important for surface coating formulations containing polyunsaturated lipids called drying oils. Also nondrying oils, such as soybean oil, are under development as renewable sources for plastics and resins " . ... 

Non-bonded interactions, regioselective allyUc hydroperoxide formation, 842-4, 850-2 Nondrying oils... 

Duraplex. Trademark of Rohm Haas Co for drying and nondrying oil-modified alkyd resins derived from phthalic anhydride, poly-hydric alcohols, and vegetable oils (Ref 2). 

Linolenic acid is responsible for tlie high yellowing tendency of alkyds based on linseed oil fatty acids. Alkyds made with nondrying oils or their fatly acids have excellent color and gloss stability. They arc frequently (lie choice for white industrial baking enamels and lacquers. 

Oleic acid may be obtained from glycerol trioleate, present in many liquid vegetable and animal nondrying oils, such as olive, cottonseed, lard, by hydrolysis. The crude oleic acid after separation of the water solution of glycerol is cooled to fractionally crystallize the stearic and palmitic acids, which are then separated by filtration, and fractional distillation under diminished pressure. Oleic acid reacts with lead oxide to form lead oleate, which is soluble in ether, whereas lead stearate or palmitaie is insoluble, prom lead oleate oleic add may be obtained by treatment with IL 5 (lead sulfide, insoluble solid, formed). With sodium oleate, a soap is formed. Most soaps are mixtures of sodium stearate, palmitate. and oleate. 

State i at room temperature) Semisolid (nondrying oil) Liquid (semidrying oil) Liquid (nondrying) Solid (buttery) Liquid (viscous)... 

Duraplex. Trademark of Rohm Haas Co for drying and nondrying oil-modified alkyd resins derived from phthalic anhydride, poly-hydric alcohols, and vegetable oils (Ref 2). It was used by Aerojet Engineering Corp, Azuza, Calif as an ingredient of some solid propellants, such as RL-223 (Ref 1)... 

Properties Pale-yellowish or almost colorless, transparent, viscous liquid faint, mild odor nauseating taste. A nondrying oil. D 0.945-0.965 (25/ 25C), saponification value 178, iodine value 85, fp -10C. Flash p 445F (229C), autoign temp 840F (448C). Combustible. Soluble in alcohol, benzene, chloroform, and carbon disulfide dextrorotatory. 

Properties Pale-yellow, viscous liquid fixed, nondrying oil slightly fishy odor and taste. D 0.918-0.927, saponification number 180-192, iodine number 145-180, maumene test 102-113, acid... 

Table II, Typical Composition of Important Drying and Nondrying Oils and Fatty Acids...

Triolein, 9-Octadecenoic acid 1,2,3-propanetriyt ester olein glyceryl trioleate. C57ll]WOfe mo] wt 885.40. C 77.32%, H 11.84%, O 10.84%. One of the chief constituents of nondrying oils and fats. From Palestine olive oil Hil-ditch, Madison, J. Soc. Chem. I nil. 60, 258 (1941) from cacao butter Meara, J. Chem. Soc. 1949, 2154. Prepn by esterification of oleic acid Wheeler etal. J. Biol. Chem. 132, 687 (1940) Swicklik ei al, J. Am. Oil Chem. Soc. 32, 69 (19S5). Synthesis Serebrennikova et at. DokL Akad. Nauk SSSR 140, 1083 (1961). 

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