Paraffin repellents

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). 

The composition of beeswax varies by insect species and by what the bees have been eating. Beeswax has a low melting point, and is often cast into useful or decorative shapes. Combined with resins, it was used as a water-proofing and adhesive. It has been used as a coating on paintings and furniture, to enhance the appearance of and to protect the surfaces from moisture. It was used as a water-repellent and adhesive in ships and boats. Beeswax has been applied to fabric, cordage, and hair to add luster and increase water-resistance, and as a base for cosmetic and medicinal creams and lotions. Beeswax was the primary and best available material for making candles until the invention of paraffin wax, which is a by-product of the distillation of petroleum. 

Certain types of powder-form explosives contain moisture repelling additives such as stearates in paraffinated cartridges they can be applied even under wet conditions. Non-cartridged powder form explosives must be free-flowing (-> ANFO). 

TFE-impregnated Petrolatum or paraffin-impregnated Rubber-impregnated 300 Good chemical and heat resistance. High water repellency. Many combinations available properties vary widely depending on materials used. 

There are different ways that low energy surfaces can be applied to textiles. The first way is mechanical incorporation of the water-repellent prodncts in or on the fibre and fabric surface, in the fibre pores and in the spacing between the fibres and the yams. Examples of these are paraffin emulsions. Another approach is the chemical reaction of the repellent material with the fibre snrface. Examples of these are fatty acid resins. Yet another method is the formation of a repellent fihn on the fibre surface. Examples of these are silicone and flnorocarbon prodncts. The final approach is to use special fabric constructions like stretched polytetrafluoroethylene films (Goretex), films of hydrophilic polyester (Sympatex) and microporous coatings (hydrophilic modified polynrethanes). 

Unsuitable (increased pilling) Most softeners, especially silicones Silicone eleastomerics and repellents Paraffin water repellents Antistats, if softening... 

The PERSISTOL types are supplied in the form of aqueous emulsions. They are wash-resistant water-repelling agents derived from paraffin wax or silicone and are used mainly for the water-repellent finishing of outerwear. 

PERSISTOL E is an emulsifier-free, clrconium salt-containing paraffin wax emulsion, which is used as an all-purpose water-repelling agent. It can be combined with the KAURIT and FIXA-PRET types used in resin finishing. 

The RAMASIT types are water-repelling agents derived from paraffin wax. They are used mainly for finishing tent cloths and canvas and for the after-impregnation of textiles. 

RAMASIT K is a paraffin wax emulsion containing aluminum salt and glue for the water-repellent and waterproof impregnation of textiles, particularly canvas. It imparts a firm, full handle to the goods. 

Metallic salt and paraffin wax emulsion with antimicrobial additives. Special water-repellent agent for glass fiber fabrics. Used in combination with SARPIFAN BKF in the stiffening process of glass fiber fabrics. 

Stabilized emulsion of paraffin wax, and the recommended treatment is by a two-bath process in which the wax is applied first and the cloth is subsequently transferred to a liquor containing a metallic salt such as aluminium sulphate. Insoluble soaps have found extensive use in making water-repellent materials. In practice, aluminium soap is most favoured. The fabric is soaked, first in a soap solution and, after squeezing, in a bath containing alum. It is then dried and hot pressed to melt the aluminium soap so that it will be evenly spread and will adhere firmly. As an example, the first liquor might well be a 0-2 per cent soap solution, and the precipitating bath might contain a 0-1 per cent solution of aluminium acetate. 

Water repellancy Chlorinated paraffin waxes, fluorocarbons, silicone emulsions... 

Chem. Descrip. Alkaline paraffin wax emulsion CAS 8002-74-2 EINECS/ELINCS 232-315-6 Uses Water repellent for textured coatings... 

Chem. Descrip. 141° Paraffin emulsion CAS m2-lA-2 EINECS/ELINCS 232-315-6 Uses Lubricant, antiblocking agent, water resist, aid in nat. and syn. mbber, paints, coatings, and varnishes improves banier props., water repellency, MVTR props., rub/scuff/abrasion/mar resist, in latex coatings, printing inks, medical devices Features Usable pH 7+ low VOC Regular FDA compliance... 

Chem. Descrip. Cryst. oxidized Ziegler-type polyethylene wax CAS 68441-17-8 EINECS/ELINCS 200-815-3 Uses Lubricant wax PVC lubricant for transparent prods. in anionic emulsions to carry nonemulsifiable microwaxes, paraffins, etc. melting agent, water repellent in paints abrasion-resist, printing inks mixed saponified polishes preservative in textiles for crosslinking with wash-and-wear resins process aid and mold release in rubber compds. improves filler disp. corrosion inhibitor Features Hard, high-melting... 

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