Additives plastics coloring

Applications The broad industrial analytical applicability of microwave heating was mentioned before (see Section 3.4.4.2). The chemical industry requires extractions of additives (antioxidants, colorants, and slip agents) from plastic resins or vulcanised products. So far there have been relatively few publications on microwave-assisted solvent extraction from polymers (Table 3.5). As may be seen from Tables 3.27 and 3.28, most MAE work has concerned polyolefins. 

All the properties are influenced by the additives used with the thermoplastic matrices, notably the reinforcements but also stabilizers, plasticizers, colorants and others. 

Ti02-mica pigments are used in all color formulations of conventional pigments where brilliance and luster are required in addition to color, i.e., in plastics, coatings, printing, and cosmetics. A major market for silver white pigments (pearl pigments, white metallic ) is the plastics industry. 

Compounding—Processing operation in which fillers, plasticizers, coloring agents, and other additives are mixed with a polymer, often in an extrude to obtain desired properties. 

Manufacturing-Specialty Chemicals Fuel Lubricant Additives Water-Soluble Polymers Performance Coatings, Resins Additives Plastic Plumbing, Automobile Molded Parts Film Rubber, Plastic Lubricants Additives Colorants, Preservatives, Flavors Fragrances Explosives... 

Most neat plastic materials used for packaging of pharmaceutical products absorb UV-VIS radiation below 280 nm. Therefore, photostabilization by plastic packaging is only possible by the addition of colorants, UV absorbers, or pigments to the plastic mass. 

P Patel and B Puckerin, "A Review of Additives for Plastics Colorants" Plastics Engineering, Society of Plastics Engineers, November, 2006. 

In addition, with colored glass or plastic, it is virtually impossible to observe a color change in a drug formulation, and it is difficult to examine an injectable drug solution for particulate matter. Therefore, injectable products raise the most difficult... 

Reed Stock Cones. [Reed Plastics] Color and additive cones, fen plastics. 

Dihydroxyphosphine oxide EINECS 237-066-7 Orthophosphorus Kid Phosphonic acid Phosphorous acid Phosphorus trihydroxide Trihydroxyphosphlne. Interm iate for manu ture of diphosphonic acids and phosphite salts used as pesticides, chelates, and plastic additives restricts color formation in esterification and condensation reactions (In small quantities) chemical reducing agent. Usually marketed as a 20% aqueous solution. White solid mp = 73° dj 1.65 soluble in H2O, EtOH. Albright Wilson Americas Inc. Asira Hassle AB CK Witco Corp. Janssen Chimica Lonzagroup Rasa. 

Very often, processed plastic materials contain additives plasticizers, stabilizers, fillers, or coloring agents such as pigments. Such additives usually do not interfere with the simple, not very specific, screening tests. For a quantitative determination or for the definite identification of a plastic... 

Additives that do not chemically react to become part of the polymer are disregarded for purposes of the two percent rule, and do not have to be named as part of the polymer. Examples of these additives include colorants and UV adsorbers, among others. Similarly, emulsifiers and plasticizers do not become part of the polymer s chemical composition and are not part of the polymer s description. Catalysts are not consumed in reactions and therefore do not have to be part of the polymer representation. 

The melt coloring of plastics is one of the most functional value added features a resin producer, compounder, or parts fabricator can impart to their products. It not only provides desired appearance properties that help sell the product, but it can also enhance several other properties, such as stability toward UV light. In addition, melt coloring usually eliminates the need for a separate, off-line, painting step. Overall manufacturing costs can thereby be reduced. 

Chem. Descrip. Sulfated castor oil CAS 8002-33-3 EINECS/ELINCS 232-306-7 Uses Textile penetrant/leveling agent defoamer and leveling agent for paper coatings fat liquor for suede leather cosmetics additive plasticizer for starch, glues, etc. emulsifier for insol. org. compds. Properties Straw colored liq. sol. in water dens. 8.64 Ib/gal pH 7.3 (10%) anionic moisture (30%) free fatty acid (12%) combined sulfur as sulfur trioxide (5%)... 

Plastics raw materials are synthetic polymers and oligomers, as well as a series of semisynthetics based on natural polymers. Additives may be of low or of high molar mass. The additives may, for example, act as fillers, plasticizers, colorants, lubricants, or antioxidants. 

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