Latex, Liquid Synthetic

Latex, Liquid Synthetic Laughing Gas Lauroyl Peroxide Lauryl Alcohol Lauryl Ammonium Sulfate Lauryl Benzene Lauryl Magnesium Sulfate Lauryl Mercaptan... 

Lithium Aluminum Hydride Latex, Liquid Synthetic Nitrous Oxide Lauroyl Peroxide Dodecanol... 

Diisodecyl Phthalate Latex, Liquid Synthetic Lead Arsenate Lead Fluoride Litharge... 

Compound Name Hydrogen Peroxide Copper Arsenite Ethyl Nitrite Latex, Liquid Synthetic Oil Tall Tallow... 

Latex, Liquid Synthetic — Fire Hazards Flash Point (deg. F) Not flammable unless coagulated ... 

LATEX or LATEX , LIQUID SYNTHETIC (9016-00-6) see dimethicone. LATEX (LIQUID CONTAINING ACRYLONITRILE) (mixture) May react vigorously with strong oxidizers. Combustion produces hydrogen cyanide gas, nitrogen oxides, and carbon monoxide gases. LAUGHING GAS (10024-97-2) see nitrous oxide. 

Phosgene Plastic Latex Latex, Liquid Synthetic... 

Latex is a stable dispersion of a polymeric material (Table 8.13) in an essentially aqueous medium. An emulsion is a stable dispersion of two or more immiscible liquids held in suspension by small percentages of substances called emulsifiers. In the adhesives industry, the terms latex and emulsion are sometimes used interchangeably. There are three types of latex natural, synthetic, and artificial. Namral latex refers to the material obtained primarily from the rubber tree. Synthetic latexes are aqueous dispersions of polymers obtained by emulsion polymerization. These include polymers of chloroprene, butadiene-styrene, butadiene-acrylonitrile, vinyl acetate, acrylate, methacrylate, vinyl chloride, styrene, and vinylidene chloride. Artificial latexes are made by dispersing solid polymers. These include dispersions of reclaimed rubber, butyl rubber, rosin, rosin derivatives, asphalt, coal tar, and a large number of synthetic resins derived from coal tar and petroleum. ... 

In contrast to this the name latex (Latin latex, liquid Greek A-ata, droplet) is derived from the naturally occurring rubber milk and is most widely used for aqueous synthetic organic polymer colloids, especially for the substitution products of natural latex, butadiene-styrene copolymer emulsions. 

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. 

Latex originally meant the sap of the rubber plant and is a dispersion of particulate rubber. Emulsion polymerization produces a similar dispersion of synthetic rubber or polymers and was rapidly developed to obtain a substitute for natural rubber during World War II. Therefore the product of emulsion polymerization was first called polymer latex, but is now known simply as latex. Sometimes the product of emulsion polymerization is called polymer emulsion. But this terminology is incorrect for latices of solid polymer particles, because emulsion indicates liquid-in-liquid dispersion (1). 

Synthetic resin cements withstand hydrochloric acid, dilute nitric acid, dilute sulfuric acid, and dilute bases, and are frequently more resistant to organic liquids than is rubber latex cemenl. The adherence to ceramic materials is good, and the liability to cracking less than for sodium silicate cement. 

Butadiene-Styrene Rubber occurs as a synthetic liquid latex or solid rubber produced by the emulsion polymerization of butadiene and styrene, using fatty acid soaps as emulsifiers, and a suitable catalyst, molecular weight regulator (if required), and shortstop. It also occurs as a solid rubber produced by the solution copolymerization of butadiene and styrene in a hexane solution, using butyl lithium as a catalyst. Solvents and volatiles are removed by processing with hot water or by drum drying. 

Latex consists of tiny particles of polymer dispersed in liquid. It is naturally occurring and also made synthetically in large volumes. Latex is the major component of paints as well as being used in paper, textiles and adhesives, with an annual market for these polymer dispersions in excess of 20 billion. 

Latex is a dispersion of polymer particles in a liquid medium, where the particles will remain suspended indefinitely. This property means that latices are colloidal dispersions. By nature of its origin, latex is classified into natural latex for dispersions obtained from plants, and synthetic latex for dispersions that are man made, typically by a process called emulsion polymerization. Blackley discusses a number of further classifications including artificial latex for dispersions in which the polymer is dispersed after synthesis, and modified latex where a chemical modification of existing latex is made. 

Emulsion polymerization technique is used to manulac-ture several commercially important polymers. Many of these polymers are used as solid materials and must be isolated from the aqueous dispersion after polymerization. In other cases, the dispersionitself is the end product A dispersion resulting from the emulsion polymerization technique is often called latex (especially if derived fiom a synthetic rabber) or an emulsion (even though emulsion strictly speaking refers to a dispersion of an immiscible liquid in water). 

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