Water dispersions emulsified latex

Several industrial systems involve emulsions, of which the following are worthy of mention. Food emulsions include mayonnaise, salad creams, deserts, and beverages, while personal care and cosmetics emulsions include hand creams, lotions, hair sprays, and sunscreens. Agrochemical emulsions include self-emulsifiable oils that produce emulsions on dilution with water, emulsion concentrates with water as the continuous phase, and crop oil sprays. Pharmaceutical emulsions include anaesthetics (O/W emulsions), hpid emulsions, and double and multiple emulsions, while paints may involve emulsions of alkyd resins and latex. Some dry-cleaning formulations may contain water droplets emulsified in the dry cleaning oil that is necessary to remove soils and clays, while bitumen emulsions are prepared stable in their containers but coalesce to form a uniform fihn of bitumen when apphed with road chippings. In the oil industry, many crude oils (e.g.. North sea oil) contain water droplets that must be removed by coalescence followed by separation. In oil slick dispersion, the oil spilled from tankers must be emulsified and then separated, while the emulsification of waste oils is an important process for pollution control. 

Emulsion polymerization is used in the chemical industry to produce a milky fluid called latex which is used as the synthetic rubber raw material in paints, surface coatings, adhesives, paper, textile and leather treatment chemicals and in the manufacture of various other products. In-situ formed micelles are used in order to perform an emulsion polymerization process, carried out in an aqueous medium. There are four basic ingredients required for emulsion polymerization. They are (a) the monomer, a polymerizable organic material, (b) the water dispersion medium, (c) the emulsifier (surfactant) and (d) the initiator. When correct amounts of the ingredients are mixed together properly in a suitable... 

Chem. Descrip. Nonoxynol-8 CAS 9016-45-9 EINECS/ELINCS 248-293-6 Uses Pigment dispersant emulsifier for polymerization (styrene acrylic, acrylic, vinyl acrylic, S/B, paints, coatings) contributes mech. and freeze/ thaw stability to latexes food pkg. adhesives, paper emulsifier in mfg. of food-contact articles Features Allows control of particle size Regulatory FDA 21CFR 175.105,176.180,178.3400 Properties Water-wh. to pale yel. clear liq. water-sol. nonionic 100% act. 

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