Paint and coatings production

Metal Box has developed a copolymer polypropylene container. Poly-can, which has an anti-static additive and is suitable for water-based paints and coating products. Another development is the first bag-in-box paints from Ashwell Paints. A smooth flow is obtained in this system by the use of an open bung and screw top rather than a tap. 

Ability to offer paint and coatings products that are compliant to regulatory requirements... 

TABLE 27.3 Western European Paints and Coatings Production (millions of dollars) ... 

There are approximately 114 paint remover manufacturers in the United States. Among them are companies that speciali2e in the manufacture of paint removers only, paint and coating manufacturers that produce a line of paint removers, specialty products manufacturers, and other manufacturers of finish removers for unique or special appHcations. Each group of paint remover manufacturer can be divided into retail or industrial products. A Hst of U.S. paint remover manufacturers is given in Table 2. 

Dimethylethanolamine, diethylethanolaniine, and thek derivatives are used in pesticides, corrosion inhibitors, dmgs and pharmaceuticals, emulsification, paints and coatings, metal fabrication and finishing, petroleum and petroleum products, and plastics and resins (226). 

Use as Solvent. Toluene is more important as a solvent than either benzene or xylene. Solvent use accounts for ca 14% of the total U.S. toluene demand for chemicals. About two-thirds of the solvent use is in paints and coatings the remainder is in adhesives, inks, pharmaceuticals, and other formulated products utilizing a solvent carrier. Use of toluene as solvent in surface coatings has been declining, primarily because of various environmental and health regulations. It is being replaced by other solvents, such as esters and ketones, and by changing the product formulation to use either fully soHd systems or water-based emulsion systems. 

Calcium carbonate is one of the most common filler/extenders used in the paint and coatings industry. Consumer and contractor paint formulas can include products from submicrometer size to coarse mesh sizes. The main function of calcium carbonate in paint is as a low cost extender. It is also used to improve brightness, appHcation properties, stabiHty, and exposure resistance. Coarse products help to lower gloss and sheen or even provide textured finishes. The selection of product type and particle size is deterrnined by the desired performance and cost of the coating. 

BS 7079 1989, Preparation of Steel Substrates before Application of Paints and Related Products, Part Al. Specilication for Rust Grades and Preparation Grades of Uncoated Steel Substrates and of Steel Substrates after Overall Removal of Previous Coatings. 

NOTE The same polymer chemistries employed in the BW deposit control treatment market sector are also made available to other markets such as waste water, cooling water, potable water production from brackish or saline supplies, metal finishing, paint and coatings, electronics, pulp and paper, and more. 

Radiation-induced modification or processing of a polymer is a relatively sophisticated method than conventional thermal and chemical processes. The radiation-induced changes in polymer materials such as plastics or elastomers provide some desirable combinations of physical and chemical properties in the end product. Radiation can be applied to various industrial processes involving polymerization, cross-linking, graft copolymerization, curing of paints and coatings, etc. 

Copolymerization and crosslinking processes are very important in the paint and coating industry. The theoretical description of such processes is helpful in understanding the essential parameters in these complex operations and in improving process conditions and product specifications with a minimum of time-consuming systematic experiments. 

The following pollution prevention and cleaner production alternatives are recommended by the Paints and Coatings Resource Center of U.S. EPA15 ... 

MIBK is a valuable industrial solvent used primarily in the paint and coating industry and in metallurgical extraction processes. It is also used as a precursor in the production of specialty chemicals such as pesticides, rubber anti-oxidants as well as antibiotics and pharmaceuticals (1). Historically, MIBK has been produced commercially from acetone and hydrogen feedstock in three stages. First, acetone is dimerized to produce diacetone alcohol (DAA). Second, DAA is dehydrated to produce MO and water. Finally, the carbon-carbon double bond of MO is selectively hydrogenated to produce MIBK. These consecutive reactions are outlined in equations (1-3). 

Specialty chemicals comprise a large number of chemicals that are used as aids to the manufacture of other major products (e.g., in paper milling, plastic production, water treatment, mining), are used as end products (e.g., pesticides in farming), or are components of consumer products (personal care products, paints and coatings, adhesives and sealants, photographic chemicals). 

The substitution of chemical solvents by water in paint and coating systems and also in cleaning processes creates complex evaluation issues, as the number of the various chemical components contained in the corresponding products generally increases. In addition, the release of persistent substances into the aquatic environment tends to be favoured by this. This therefore raises the question for assessing two suitable strategies containment of known hazardous substances in closed systems or substitution of the mobile solvent by complex water-based systems that are scarcely evaluable from a toxicological aspect. 

Pigment slurries are one of the major components in paints and coatings that contribute to or affect the performance of a formulation. The nature of pigment slurries makes them extremely susceptible to microbiological contamination that can degrade the final formulation. Often biodeterioration can be prevented with plant sanitation and the use of a preservative, but formulators must not rely on the precept that a particular preservative that works today will always remain effective down the road. In complex environments, contaminants can enter the system at different points, or a formulation change may render the original preservative less effective. Manufacturers must remain aware of trends in the industry to ensure their products are properly protected. 

Occupational exposure to ethylbenzene may occur by inhalation during its production and use. Most occupational exposures are related to technical grades of mixed xylenes used as solvents in various paints and coatings, inks, insecticides and in rubber and plastic production, as well as from the production and handling of gasoline and bitumen. Ethylbenzene from these sources as well as from vehicle emissions is ubiquitous at Xg/m levels in ambient air. It is a component of tobacco... 

The focus is on a small and medium enterprise (SME) for which the use of chemicals is a minor part of the entire production chain. The SME uses painting guns for painting and coating operations of metals. These guns are cleaned with chemical substances, i.e. low volatile organic compounds (VOCs). 

Nitropropane is produced in low volume and occupational exposures occur primarily in its production and use as a solvent in inks, adhesives, paints and coatings. Exposures of the general population may occur in ambient air and water near industrial sites manufacturing or using 2-nitropropane, in cigarette smoke, and possibly from its solvent uses. 

Wapora, Inc. 1975. Assesment of Industrial Hazardous Waste Practices. Paint and Applied Product Industry. Contract Solvent Reclaiming Operations, and Factory Application of Coatings. U.S. Environmental Protection Agency, EPA-530-SW-119C. 

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