Raw materials emulsifiers

Rewopoi . [RewoGmbH] Anionic surfactants foaming agent, emulsifier, raw material for perstmai cate prods., deter-goits, emulsion polymoizittion, paper, textile, paint, and dye industries. 

Uses Detergent, wetting agent, foaming agent, emulsifier, raw material for shampoos, shower gels, hand soaps, cosmetics, specialty cleaners, detergents, dish-washes... 

Uses Wetting agent, detergent, emulsifier, raw material for mfg. of surfactants ... 

Uses Raw material for surfactants, conditioners, disinfectants, plasticizers, emulsion polymerization emulsifiers, raw material tor creams/ointment, metal rolling oils oil base for lubricants of ABS, PS, PMMA, EVA emulsion stabilizer for creams and lotions quality modifier of lipsticks thickener Features Smooth touch to skin... 

Uses Raw material for surfactants, conditioners, disinfectants, plasticizers, emulsion polymerization emulsifiers, raw material forcreams/ointmenL metal rolling oils... 

Uses Cosmetic ester self-emulsifying raw material for emulsions, hair conditioners, creams, lotions, ointments industrial surfactant for agric. tbnnulalion Regulatory EPA exempt... 

The ingredients are nonionic surfactants. It is their application as amine replacements in steam-condensate systems that is novel, not the raw materials. These products are commonly found in skin and hair products and in cosmetics because of their mildness and their excellence as water-in-oil emulsifiers and co-emulsifiers in oil-in-water emulsions. Raw material brands include Tween (ICI, PLC), Crill , and Crillet (Croda PLC). 

Almost all urethane materials are synthesized without the use of solvents or water as diluents or earners and are referred to as being 100% solids. This is true of all foams and elastomers. There are many products, however, which do utilize solvents or water, and these are known as solvent-borne and waterborne systems, respectively. In the past, many coatings, adhesives, and binders were formulated using a solvent to reduce viscosity and/or ease application. However, the use of volatile solvents has been dramatically curtailed in favor of more environmentally friendly water (see Section 4.1.3), and now there are many aqueous coatings, adhesives, and associated raw materials. Hydrophilic raw materials capable of being dispersed in water are called water reducible (or water dispersible), meaning they are sufficiently hydrophilic so as to be readily emulsified in water to form stable colloidal dispersions. 

Liquid raw materials such as polymer emulsions, defoamers, pigment dispersions, dye solutions, dispersing aids and emulsifiers are all products that can themselves become infected with micro-organisms if not produced from non-contaminated ingredients, under good manufacturing conditions and with an effective preservative. 

As another case study a process synthesis of an emulsion polymerization process is given (Hurme and Heikkila, 1998). In emulsion polymerization unsaturated monomers or their solutions are dispersed in a continuous phase with the aid of an emulsifier and polymerized. The product is a dispersion of polymers and called a latex. The raw materials are highly flammable unsaturated hydrocarbons and the reaction is exothermic which both cause a risk. The main phases and systems in an emulsion polymerization plant are listed in Table 31. 

Direction of innovation The use of renewable raw materials and, closely linked with this, the compostability of prodnction waste are trend-setting. The absence of solvents was not traded in by nsing other problematic snbstances (such as e.g. chemical emulsifiers, drying agents or biocides). In professional applications the idea of water on wood and the comparatively long drying times are, however, considered with some reservations - despite the fact that the technical performance is in no way behind that of conventional products (EN certification). 

The most common method to simultaneously dry and encapsulate flavours is the spray-drying technique (Fig. 21.11). For this technology, carrier materials like maltodextrin, starch and gum arabic are dissolved in water. As a next step, the liquid flavour raw material is emulsified in this slurry. Also non-volatile flavour components can be added. The slurry is atomised and dried in a spraydrying facility. 

Uses Xylene occurs in the manufacture of different petroleum products and as an impurity in benzene and toluene. It is a colorless and flammable liquid. Commercial xylene is a mixture of three isomers, namely, ortho-, meta-, and paraisomer. It is extensively used in industries associated with paints, rubber, inks, resins, adhesives, paper coating, solvents, and emulsifiers. It also is used in the manufacture of plasticizers, glass-reinforced polyesters, and alkyl resins. Xylene is used as an important raw material. 

Some emulsifiers, e.g. lecithin, are purely natural products whereas others are manufactured usually from natural materials. Typical materials for manufactured emulsifiers are vegetable oils, e.g. soya bean oil or palm oil animal fats, e.g. lard or tallow and glycerol. Where required, some manufacturers can supply products with kosher or halal certificates. Other raw materials are organic acids such as fatty acids, citric acid, acetic acid and tartaric acid, in addition to sorbitol and propylene glycol. 

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