Oleochemicals Research Articles

Oleo chemicals as additives in paints and varnishes, etc: Part 2

Gelation that can occur when copper or aluminium bronze powder is permitted to stand in nitrocellulose lacquer can be prevented by the addition of below one percent of lauric acid. Butyl acetyl ricinoleate will impart highgloss, plasticity, pliability to nitro‐cellulose lacquers and impart permanence, and improves the ageing properties and low temperature flexibility to the product. Acrylic coatings of improved gloss and pattern control have been provided by the addition of methyl hydroxystearate. When barium α‐sulphostearate is added to interior or exterior paints it can produce films of improved hardness. Methyl linoleate can be employed to retard the hardening of Japanese film lacquer. Compositions with good heat stability and good thixotropic properties and which are suitable for use as a base for paints have been evolved by reacting hydrogenated castor oil with toluene di‐isocyanate and emulsifiable and polyethylene wax. The use of aluminium stearate in paints at elevated temperatures can result in films of high opacity, good build, sag resistance, heavy pigmented tolerance and good sealing properties. Myristic acid‐based alkyd aryl ketones have been utilised to impart lustre to wooden surfaces, and stearic acid terminated polyamide/polyimide for coatings for electrical insulators of magnetic wire have been applied to give improved lustre. Diethylene glycol esters of dilinoleic acid can be used to produce non‐drip paints, as can ethylene diamine bis hydroxystearate, and glyceryl trihydroxystearate. Hydrogenated castor oil is useable in the making of thixotropic agents applicable to paints have been prepared from the material, plus oligomers of hydroxystearic acid/ethylenediamine/sebacic acid polymers. Ethyl linoleate and ethyl linoleate have been used as penetrants in anti‐corrosive paints based upon alkyd resins. Aluminium stearate can prevent excess penetration by paints of surfaces. Bis (hydroxymethyl) propanediol oleate has found use in alkyd resins derivative coatings with butylated melamine resins‐hardening materials to give pinhole resistant coatings. Butyl stearate is a good low temperature plasticiser for paints. Butyl acetyl ricinoleate imparts good plate release and cold crack resistance to leather lacquers, and provides good handle and excellent low temperature flexibility to coated fabrics on thick unsupported sheetings.

Oleo chemicals as additives in paints and varnishes, etc: Part 1

Oleochemicals are derivatives of the components of vegetable, marine and animal oils and fats, glycerides, i.e. glycerol and fatty acids substantially, and include the fatty acids such as and their derivatives including fatty alcohols, fatty esters, amides, amines and other nitrogen derivatives and also the heavy metal soaps and the water soluble alkali metal soaps, polyoxyethylated materials, polyoxypropylated products, sulphated and sulphonated derivatives and the quarternary ammonium compounds. Although only normally used in small amounts, oleo chemicals are amongst the important raw materials, additives, for aiding the production of paints, capable of having a profound effect in these preparations.

600 attend oleochemicals conference

600 attend oleochemicals conference

World conference on oleo chemicals

World conference on oleo chemicals

Lifesaving fuel tank

To date, as an oil yielder, palm oil takes second place only to coconut and stands above rapeseed, sunflower, groundnut, and cottonseed. Under good agricultural management, a hectare of oil palm yields about 5–7 tons of oil per annum. The oil palm is economically important for its oil and has become one of the major oil crops in the world. For a long time it was the “poor man's cooking oil,” but with the fossil fuel reserves fast depleting, it has become a much sought-after “green fuel.” The oil palm yields about a threefold more oil than coconut, sevenfold more oil than rapeseed, and almost a tenfold more than soybean. Palm oil and palm kernel oil can be used both for edible (90 percent) and nonedible (10 percent) purposes. Palm oil can also be used for frying meat, fish, and vegetables and for making salad dressing, margarines, shortenings, vanaspati, ice cream, confectioneries, and other emulsion-based products. As far as nonedible use is concerned, the oil is mainly used in the cosmetic industry (soap manufacturing) and also indirectly as oleo chemicals. Carotenoids, vitamin E, and sterols are minor components of crude palm oil that can be pretreated and encapsulated for pharmaceutical applications. The focus of this chapter is on research and development, which would ensure the sustainability of oil palm as a plantation crop. There is also an emphasis on plant breeding and selection of superior varieties and the potential of biotechnological interventions in the production of premium products. The need to manage oil palm in adjusting to a fast-changing environment is also highlighted.