Oleoresinous coatings

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. 

So far as iron and steel are concerned, the adhesion problem is simple, and the oleoresinous coatings which are generally applied to them form a good bond with them. Mechanical pretreatments are always extremely useful. 

Lutxal 2522 Lutxal 2544 Lubtal 5005 Lubtal 5011 antistat, nylon finishes Standapol 1610 antistat, oleoresinous coatings Witcamlde 5138 antistat, paints... 

N- Tallow-1,3-dlamlnopropane dbleate wetting agent, oil-based systems Isopropylamlne dodecylbenzenesulfonate PEG-Stallate-, Teric N3 wetting agent, oleoresinous coatings WItcamIde 5138... 

Oleoresinous. Oleoresinous coatings, based on drying oils such as soybean and linseed, are slow curing. For many years prior to the introduction of synthetic resins, they were used as the vehicles in most coatings. They still find application alone or as modifiers to other resins. 

Other coatings resins that are used alone or as modifiers with other resins include aminos, ceUulosics, chlorinated rubber, fluorocarbons, oleoresinous coating, pheno-Ucs, polyamides, polyolefins, polyimides, and silicones. 

C). Alkyd coatings have superior gloss, adhesion, hardness, and chemical resistance, and they dry fester than oleoresinous coatings. 

Uses Emulsifier, detergent, lubricant, wetting agent, penetrant, dye dispersant, scouring aid, antistat for industrial use, textiles, metal processing, dry cleaning, oleoresinous coatings, petrol, industry... 

Types of internal enamel for food containers include oleoresins, vinyl, acryflc, phenoHc, and epoxy—phenoHc. Historically can lacquers were based on oleoresinous products. PhenoHc resins have limited flexibiHty and high bake requirements, but are used on three-piece cans where flexibiHty is not required. Vinyl coatings are based on copolymers of vinyl chloride and vinyl acetate dissolved in ketonic solvents. These can be blended with alkyd, epoxy, and phenoHc resins to enhance performance. FlexibiHty allows them to be used for caps and closures as weU as drawn cans. Their principal disadvantage is high sensitivity to heat and retorting processes this restricts their appHcation to cans which are hot filled, and to beer and beverage products. 

Substituted heat-reactive resins are most widely used in contact-adhesive appHcations and, to a lesser extent, in coatings (77,78) -butylphenol, cresol, and nonylphenol are most frequendy used. The alkyl group increases compatibiHty with oleoresinous varnishes and alkyds. In combination with these resins, phenoHcs reduce water sensitivity. Common appHcations include baked-on and electrical insulation varnishes, and as modifiers for baking alkyds, rosin, and ester gum systems. Substituted heat-reactive resins are not used for air-dry coatings because of theh soft, tacky nature in the uncured state substituted nonheat-reactive phenoHcs are the modifying resin of choice in this case. 

To avoid peeling of oleoresinous top coats from zinc-rich primers, a sufficient interval should be allowed between coats to permit the zinc-rich primer to weather first in sheltered conditions soluble products should be removed before recoating. 

The conventional bituminous or oleoresinous paints previously described are still used on the bottoms of smaller ships, the chief difference being that they are applied mainly by airless spraying. The formulations may be adjusted to permit application of thicker coats than by brush or roller, although the coats must not be too thick because oleoresinous paints require... 

Improved stability of lipophilic bioactives may be obtained by tailoring the interfacial membranes of oil droplets. Rosenberg and Lee (2004) coated a primary whey protein-based oil-in-water emulsion containing paprika oleoresin (as the model core) with calcium alginate to enhance the stability and control the core release. 

As noted, coating systems were advanced from oil-only vehicles to oleoresinous varnishes for improved performances. These are basically oils that have been... 

Use Adhesives, gloss oils, paper label coatings, oleoresinous varnishes, solder flux, spirit varnishes, waxed paper and hot melt compounds, synthetic resins. 

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