Latex paints, emulsion

Chem. Descrip. 3-lodo-2-propynyl butyl carbamate CAS 55406-53-6 EINECS/ELINCS 259-627-5 Uses Fungicide for latex emulsions, latex paints, pigment slurries, thickeners, cutting oils, aq. wood preservatives, aq. stains, adhesives, aq. dye baths, textiles, plastics Regulatory EPAreg. no. 5383-55... 

Water-based paints are also known as latex paints, because the binder used is the latex emulsion. Latex paints are not uniform liquids. Unlike oil-based paints, latex paints contain polymer molecules not dissolved in a solvent, but dispersed or emulsified in water. The polymer molecules are actually insoluble in water, and to emulsify or disperse them in water, surfactants are incorporated. 

The quaternary bis-hexaminium salt described here is particularly useful as a preservative in a wide variety of water based systems, e.g. polymer emulsions, latex paints, pigment and dye slurries, concrete additives, starches, thickener solutions. Addition rates 0 05-0-2%. For the rest what is mentioned before under Section 3.3 and 3.3.2 is valid. 

Preservatives based on BIT may be used for the in-tank/in-can protection of polymer emulsions, latex paints, pigment and filler slurries, paper coatings, adhesives and other aqueous functional fluids. Because of the heat stability and non-volatility of BIT the preservatives can be incorporated in fluids which are still hot. BIT exhibits no headspace activity. It is compatible with non-ionic and anionic compounds and active in acid and alkaline media. 

Uses Antifoam, defoamer for waterborne paints/coatings, latex emulsions, latex paints/coatings, wax emulsions, clear and high gloss applies. 

Product COSAN 101 is an effective preservative for resin emulsions, latex paints, adhesives, dispersed colors, pigment slurries, and ready-mix joint cements. This product is a 77.2% aqueous solution of 4,4-dimethyloxazolidine and its trimethyl homolog. This organic molecule contains only four elements carbon hydrogen oxygen nitrogen and when used at recommended levels will prevent bacterial deterioration of water-based systems. 

Resin Emulsions Latex Paints Adhesives Dispersed Colors Ready-mix Joint Cement... 

Product COSAN 145 is a liquid organic preservative recommended for use in resin emulsions, latex paint, adhesives, dispersed colors, pigment slurries, and ready-mix joint cements. 

Styrene—acrylic copolymers provide latices with good water resistance and gloss potential in both interior and exterior latex paints. However, they are typically regarded as having limited exterior durabiUty compared to all-acryhc latex emulsions that are designed for exterior use. 

For the most part, additives control the appHcation or theological properties of a paint. These additives include materials for latex paints such as hydroxyethylceUulose, hydrophobicaHy modified alkah-soluble emulsions, and hydrophobicaHy modified ethylene oxide urethanes. Solvent-based alkyd paints typically use castor oil derivatives and attapulgite and bentonite clays. The volume soHds of a paint is an equally important physical property affecting the apphcation and theological properties. Without adequate volume soHds, the desired appHcation and theological properties may be impossible to achieve, no matter how much or many additives are incorporated into the paint. 

The product of an emulsion polymerization is a latex ie, polymer particles on the order of 0.5—0.15 p.m stabilized by the soap. These form the basis for the popular latex paints. SoHd mbber is recovered by coagulating the latex with ionic salts and acids (see Latex technology). 

The largest volume commercial derivatives of 1-butanol are -butyl acrylate [141-32-2] and methacrylate [97-88-1] (10). These are used principally ia emulsion polymers for latex paints, ia textile appHcations and ia impact modifiers for rigid poly(vinyl chloride). The consumption of / -butanol ia the United States for acrylate and methacrylate esters is expected to rise to 182,000—186,000 t by 1993 (10). 

Closely related to films are paints. Previously linseed oil, thinned with turpentine, fornted the film into which were imbedded pigments. Turpentine, from pine trees, is still used, but competes with a petroleum distillate (less smelly). Water-based latex paints are a water emulsion of an organic paint that is thinned with water. 

The chemical resistance of group (b), frequently used in emulsion or latex paints, is often upset by the presence of water-soluble emulsion stabilisers and thickeners, which remain water soluble in the dried paint film. 

Vehicles include liquids such as oils (both natural and modified natural) and resins and water. A latex vehicle is made by suspending synthetic resins, such as PMMA, in water. This suspension is called an emulsion, and paints using such vehicles are called latex, waterborne, or emulsion paints. When the vehicle comes in contact with air, it dries or evaporates, leaving behind a solid coating. For latexes, the water evaporates, leaving behind a film of the resin. 

The conditions required to form an emulsion of oil and water and a microemulsion. The complex range of structures formed by a microemulsion fluid. Emulsion polymerization and the production of latex paints. Photographic emulsions. Emulsions in food science. Laboratory project on determining the phase behaviour of a microemulsion fluid. 

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