Paints oleoresinous varnishes

Fluidized bed Photoresists Latex paints Oleoresinous varnish... 

Oil of lurpeiiline is used principally as a solvent for paints and varnishes, because it mixes readily with the various substances used and also because it evaporates quickly, causing the paint or varnish to dry, It is also used in making such things as sealing wax and shoe polish. Very pure grades of turpentine (the oleoresin) are used medicinally. 

Oils are more frequently used in oleoresinous paints and varnishes. In these, the oil is either mixed with, or heat-bodied in the presence of, some other resin. The resin may react with the oil to give larger molecules containing fatty acid. Reaction occurs with rosin and its derivatives, phenolic resins and petroleum resins. Other resins, such as terpene resins and coumarone-indene resins, do not react with the oil, but heat helps to dissolve the resin and causes the oil to body. The oils used are those found suitable for oil paints. 

Definition Oleoresin from Agathis aiba trees Properties Sol. in alcohol insol. in esters and hydrocarbons dens. 1.07 kg/l acid no. 120-150 soften, pt. (R B) 120-130 C Uses Binder in road marking paints, insulation varnishes, flexographic inks... 

Different t)q)es of industries can make use of oleoresins from pines pharmaceutical and perfume industries, food additives, and other chemical industries (household cleaning products, paints, inks, varnishes, rubber, insecticides, aromatherapy). These various uses are due to their pleasant fragrance [140,141], antimicrobial activity, among various other physical and biological properties. Examples of different terpenes obtained from pine oleoresin and their importance in distinct industrial segments are listed in Table 136.4. 

By midnineteenth century, iron boats began to displace wooden boats. This prompted naval stores producers to separate turpentine from oleoresin to meet the growing demand for a paint and varnish solvent. In the 20th century, the demand for rosin in paint and varnish was so great that its production reached 8.7 million pounds in 1900 and over 10 million pounds in 1910, the highest in the history of gum naval stores. Then wood rosin dominated the... 

PhenoHcs that are not heat-reactive may be incorporated into both air-dried and baked oleoresinous coatings. AppHcations vary widely and include clear and pigmented exterior varnishes, aluminum-maintenance paints, 2inc-rich primers, can coatings, insulation varnishes, and concrete paints. As modifiers in a great variety of appHcations, they enhance the performance of oleoresinous and alkyd coatings. 

NMR has been primarily applied in archaeometric studies [40]. In contrast, NMR has had a restricted application in the art conservation field due to the complexity of the paint samples. This technique has been chiefly used for identifying highly polymeric materials, such as triterpenoid varnishes, oil, oleoresinous media, and synthetic media [41]. 

Products and Uses Used in coffee (decaffeinated), fruits, hops extract, spice oleoresins, vegetables, adhesives, glues, cleaners, waxes, oven cleaners, paint strippers, paint removers, shoe polish, varnishes, stains, and sealants. It is also a degreasing and cleaning fluid used as a solvent for food processing. Used for color dye or fixative and as an extraction solvent. Not used much as a propellant anymore. 

Pine oleoresin is an abundant source of useful terpenes. It has two major fractions turpentine, which is the volatile fraction, and rosin, which is the solid fraction. A key element of tree defense, oleoresin is an important nonwood forestry product because of the various conventional and potential uses of its terpenes. Oleoresin derivatives can be used by different industries, including pharmaceutical, cosmetic, and food industries, as well as by the chemical industry in the manufacturing of various products, such as paint, varnishes, adhesives, insecticides, and disinfectants. Biotic and abiotic factors that affect oleoresin production can be used to improve yields by promoting specific... 

Varnishes. The bitumen replaces some or all parts of a resin in oleoresinous paints (oils combined with resin to obtain paints> such as alkyd, phenolics, etc.). 

These notable achievements of antiquity in developing proeesses for obtaining oleoresinous products from conifers and using them to produee varnishes, laequers, paints, and inks remained the state of the arts for many eenturies. Exeept for the eclectic writings of Theophrastus (372-287 b.c.), literature devoted to these processes suffered from historie amnesia well into the Renaissanee. 

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