Repellents waxes

Aquabead. [Micro Powders] Water beading/repellent wax. 

In order to improve storage stability of phosphites prone to hydrolysis, small amoimts of bases (sueh as tri-isopropanol amine) are added or blended with water-repellent waxes or other hydrophobie eom-pounds. 

Classification Solvent soluble copper-8-hydroxy-quinoline with water repellent waxes. 

Waxes are water repelling solids that are part of the protective coatings of a number of living things including the leaves of plants the fur of animals and the feathers of birds They are usually mixtures of esters m which both the alkyl and acyl group are unbranched and contain a dozen or more carbon atoms Beeswax for example contains the ester triacontyl hexadecanoate as one component of a complex mixture of hydrocar bons alcohols and esters... 

Wax (Section 26 5) A mixture of water repellent substances that form a protective coating on the leaves of plants the fur of animals and the feathers of birds among other things A principal component of a wax is often an ester in which both the acyl portion and the alkyl portion are characterized by long carbon chains... 

Most commercial aluminum formate is monobasic aluminum diformate because of the difficulties involved in triformate preparation. The main appHcation is in textile waterproofing. Aluminum formate reacts with casein to form a water-soluble complex, which can emulsify paraffin and certain other waxes. Fabrics immersed in these emulsions are rendered water repellent (26—28). 

Over 68 aerosol products containing isopropyl alcohol solvent have been reported (145). Aerosol formulations include hair sprays (146), floor detergents (147), shoe poHshes (148), insecticides (149,150), bum ointments (151), window cleaners, waxes and poHshes, paints, automotive products (eg, windshield deicer), insect repellents, flea and tick spray, air refreshers, disinfectants, veterinary wound and pinkeye spray, first-aid spray, foot fungicide, and fabric-wrinMe remover (152) (see Aerosols). 

The polymeric acyl titanate esters are viscous Hquids or waxes that are soluble ia hydrocarbon solvents and can be used as Ti02-dispersiag agents, water-repellent agents for textile fabrics, and mst inhibitors for steel. 

Admixtures are sometimes used to reduce permeabiUty of concrete (80—82). These iaclude pore-filling materials such as chalk. Fuller s earth, or talc water repellents such as mineral oil, asphalt, or wax emulsions organic polymers (acryflc latexes, epoxies) and salts of fatty acids, especially stearates. 

The third and perhaps most important class of water repellents consists of materials appHed to the surface of concrete for above-grade stmctures or others where water pressure on the concrete is small. This iacludes damp-proofing ia which treatments cannot be subjected to continuous or even intermittent hydrostatic pressure (83). Repellents that may be used are oils, waxes, soaps, resias, and siUcon-based systems (84). 

Water repellency is achieved by making the surface hydrophobic - ysv has to be reduced as much as possible if ysv - ySL is negative, 9 > 90° C - water repelling materials include waxes, petroleum residues and silicones for example, if =SiOH groups on glass or Si02 surfaces have reacted with silanes to form =SiO—Si—Alkyl... 

Uses Manufacture of esters for use in perfumes, flavors, soaps, lotions, ointments photographic developer for color movie films dying nylon filament, textiles, and sheet plastics solvent for dyestuffs, cellulose, esters, casein, waxes, etc. heat-sealing polyethylene films bacteriostat, insect repellant emulsions ballpoint pen inks and stencil inks surfactant. 

PFCs comprise a large group of compounds characterized by a fully fluorinated hydrophobic linear carbon chain attached to one or more hydrophilic head. PFCs repel both water and oil, and are therefore ideal chemicals for surface treatments. These compounds have been used for many industrial applications including stain repellents (such as Teflon), textile, paints, waxes, polishes, electronics, adhesives, and food packaging [1]. 

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