Latex emulsifying agent

Salts of a-sulfo fatty acid esters can work as emulsifying agents for the preparation of asphalt emulsions and asphalt-latex emulsions. The ester sulfonates improve the storage stability of the emulsions [101,102]. In the manufacture of lightweight gypsum products air bubbles have to be mixed into the slurries. The use of salts of sulfonated C10 l8 fatty acid alkyl esters as foaming agents produces uniformly distributed fine bubbles [103]. Salts of C10 16 fatty acid alkyl ester sulfonates can also be added to cement mixtures to prevent slump loss of the mixtures [104]. 

A substance added to an emulsion to increase its stability and reduce the risk of separation of the two components. In latex work soaps are widely used as emulsifying agents. 

Materials used in latex compounding, having the power to displace other substances already adsorbed on the mbber particles. See Emulsifying Agent, Protective Colloids and Wetting Agents. Surface Resistivity... 

A basic substance used particularly in compounds containing large quantities of white factice to offset the retarding effect of the factice. Also used to prepare emulsifying agents in latex compounding. 

In solution, block copolymers display interesting colloidal and interfacial properties. They can be used as emulsifying agents in water-oil and oil-oil systems (6 ). In the later case, the oil phases are solid and they give rise to polymeric alloys (7.) or they are liquid and they allow the preparation of latexes in organic medium (8 ). However, the molecular structure of block copolymers based on polybutadiene PB (70 ) and polystyrene PS behave as thermoplastic elastomers when engaged in multiblock (PB-PS)n or triblock (PS-PB-PS) structures but never when implied in inverse triblock or diblock arrangements. Similarly the... 

Use Nondrying emulsifying agent solvent plasticizer in polishes in cosmetics in textile, paper, and leather processing low-temperature lubricant. Stabilizes latex paints against breakdown due to repeated freeze-thaws. 

Emulsion polymerization is considered the generally accepted technique to produce dispersion (plastisol) resins and vinyl latexes today. The monomers are made dispersible by emulsifiers in a continuous water phase. The initiators or catalysts are water soluble while the emulsifying agents stabilize the emulsion formed when the system is agitated. Gellner (2 ) cites the following advantages of emulsion polymerization over other methods ... 

Polymerization in aqueous suspension is by far the most convenient and widely used technique. The monomer is moderately soluble in water, and the pol3uner usually separates as a fine white floe which can be filtered easily and washed. A particular advantage of aqueous polymerization is that one can employ redox initiators such as persulfate-bisulfite r chlorate-sulflte. These catalysts permit rapid polymerization to high conversion at relatively low temperatures, usually 20-40 C. Emulsifying agents may be present, and it is possible to prepare polymer in the form of a stable latex. ... 

Chem. Descrip. Ammonium lauryl sulfate CAS 2235-54-3 EINECS/ELINCS 218-793-9 Uses Emulsion polymerization surfactant latex foaming agent water resist, aid in coatings food pkg. adhesives, coatings, paper, cellophane, rubber articles, textiles emulsifier in mfg. of food-contact articles defoamer in food-contact paper/paperboard Regulatory FDA 21CER 175.105,175.300,176.170,176.210,177.1200,... 

Uses Emulsifier, solubilizer, solvent, detergent, and wetting agent for oil-based systems dispersant in oil and water-based systems in dry-cleaning surfactants hydrotrope for liq. detergents latex emulsifier ... 

Uses Surfactant, emulsifier, coupling agent, solubilizer, emulsion stabilizer for cosmetics, topical pharmaceuticals, polishes, leather, plastics, metalworking dye dispersant stabilizer for rubber latex emulsifier for waxes u in coating citrus fruit defoamer in food-contact coatings in food-pkg. adhesives in paper/paperboard in contact with dry food food-contact textiles... 

Uses Foaming agent, emulsifier, stabilizer for acrylic latex suspending agent in emulsion polymerization... 

Properties Clear liq. m.w. 289.47 Toxicology TSCA listed Uses Surfactant softener, conditioner, emulsifier, wetting agent, vise, builder, stabilizer, antistat for cosmetics emollient, lubricant, and slip agent for shave creams gel sensitizer for latex foaming agent for bubble baths hydrotrope, thickener for hypochlorite cleaners thixotrope for water-based paints emulsion stabilizer for textiles, petrol, additives, paper, plastics, rubber Trade Name Synonyms Aromox C/12-W [Akzo Nobel Surf. Chem. 

Foaming agent for latex. Emulsifier, dispersant, detergent. 

Emulsion polymerization is similar to suspension polymerization in that water is the continuous phase, but the main difference is that a water-soluble initiator is used. The water-insoluble monomer is dispersed in the water using emulsifying agents, such that the latex is made up of droplets (1.5 pm diameter) and micelles (0.01 pm). Because of the enormous surface area of the micelles, initiation and polymerization takes place at this interface and the monomer is replenished by diffusion from the larger droplets to the micelle/growing polymer particle. A latex is obtained which is often used directly as such for paints, adhesives, etc. 

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