Modified oils

The relatively slow drying speed of oils was the main limitation for their use in paints and coatings, and therefore for practical applications, a number of oils modified either chemically and/or structurally were introduced to improve their drying time and other performance factors. These modifications involving reactions of oils in other resins such as alkyds, epoxy esters and uralkyds will be covered in relevant chapters. Here we will briefly describe the chemical modification of an oil itself. 

Polymerized oil One of the common approaches used to improve drying time of coatings is to increase the MW of the oil by partial polymerization so that it will take less time to form a fully cross-linked network. In earlier times, when synthetic resins were not 

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Modified oil content in food crop USDA Safe to grow... 

It is worth noting that the name Sunola for modified oils is used in Austraha for high-oleic sunflower oil, whereas, in Canada, it is a registered trademark of two oils of different composition one of higher hnoleic acid content than traditional sunflower and another of high-oleic type. Care must be taken that this should not lead to confusion. Canadian Western Grower Seed Corporation has also developed... 

A varnish is a solvent-thinned combination of a drying oil and a hard resin. Also, a varnish is the clear film obtained using a varnish as a coating vehicle. By extension, vehicles used for clear films are called varnishes although the vehicle may be a true varnish, an alkyd resin solution, a urethane-modified oil, or even a lacquer. 

This flame tunnel set-up was originally equipped with a modified oil burner RZ 3.3 from MAN, Germany, The burner was then fitted with a pilot burner for ignition of the bio-oil. A fuel pump delivers the fuel flow rate and pressure for load levels varying between 70 % and 100 % via electrically controlled valves. 

After acrylation, cross-linked chiral polymer microspheres were synthesized by a modified oil-in-water (O/W) emulsion photopolymerization. The chiral particles showed a uniform spherical shape with a diameter ranging from a few microns to 80 microns. Amorphous chiral microspheres open the possibility to study the in vitro and in vivo enzymatic degradation as a function of chirality, without the influence of crystallinity. Moreover, they are promising as materials to conduct chiral separations of enantiomers. 

Among the genetic modifications for product quality, shown in Table II, the largest percentage was for delayed ripening at 32%. Modified oil profile, modified metabolic enzymes, modified storage protein, increased solids, and others accounted for the remainder. The "other" category under product quality includes such modifications as antisense manipulation, increased fatty acids, increased starch, modified nutritional value, modified color, and chalone suppression. 

Colorol Rustbinder. [Lucas Meyer] ConqxL based tm modified oils and carboxylic ester corrosion inhibitor. 

Oils. A number of oils (linseed, tung, oiticica) and modified oils have traditionally been used as penetrating wood finishes. These oils do not leave a film, and they do not last longer than 1-1.5 years because of their low resistance to UV light and water. Therefore, penetrating oils find limited use as outdoor finishes, but they are widely used as interior furniture finishes. 

Some traditional oils are not suitable for nutrition or are less suitable for specific technological uses (e.g., deep-frying) because of their enhanced resistance against oxidation. Therefore, their FA composition has been modified. Oils can be modified, either by classical breeding methods or, in recent years, by genetic manipulation (see Chapter 16). 

Of course, rapeseed oil is not the only modified oil (Krawczyk, 1999). Polyunsaturated FA cause low resistance against oxidation, especially under frying conditions but also on storage. Therefore, high-oleic cultivars are now available in which the polyunsaturated content has been reduced (Table 11.7). High-oleic and low- or medium-linoleic sunflower oils have been available on the market for... 

The Main Fatty Acid Groups of Modified Oils (% total fatty acids)... 

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