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Vinyls powder coatings

A wide range of internal lacquers developed for the heat processed food industry also find uses in the pharmaceutical and cosmetic field. The lacquers, which include acrylic, phenolics, polyesters, epoxy and vinyl resins, are normally applied via an organic solvent which is subsequently evaporated during curing. The use of aqueous carriers and powder coatings has also been developed. Ferrolite is a plastic coated metal using polypropylene, polyester, etc. [Pg.288]

Photopolymerization of Powder Formulations Powder coatings are very attractive [314]. The powder is applied on the substrate and exposed to an IR source to get the coalescence of the solid particules then, the cross-linking reaction is carried out under UV (or visible) light in a very short time and at a temperature about 100-120°C. Largely encountered systems are based on, for example, polyesters (with maleates or fumarates unsaturations) and polyurethane vinyl ethers that copolymerize according to a radical process, amorphous polyesters and functionalized polyesters (with allyl ethers). [Pg.404]

Most solution vinyl resins are more soluble than the powder coating or dispersion grade vinyl resins. They will, therefore, require much less plasticizer to reach any specific level of "softening." The compounder has to be extremely careful that he does not over plasticize and obtain a "tacky" or "soft" film. [Pg.1214]

Powder coatings are also formed from ethylene-vinyl acetate copolymers (see Section 3.4). Copolymers of ethylene with maleic acid (anhydride) of low molecular mass are water-soluble, form salts, and undergo cross-linking reactions. [Pg.25]

Polyvinyl Chloride Thermoplastic polymer of vinyl chloride, available in rigid and flexible forms. Has good dimensional stability, fire resistance, and weatherability, but decreased heat and solvent resistance and high density. Processed by injection and blow-molding, calendering, extrusion, and powder coating. Used in films, fabric coatings, wire insulation, toys, bottles, and pipes. Also called PVC. [Pg.207]

PPG-4 diacrylate Stearyl acrylate flexibilizer, photoresist coatings Polyvinyl methyl ether flexibilizer, polyolefin compounds Polyethylene, very low-density flexibilizer, powder coatings Bis (4-vinyl oxy butyl) hexanediyibiscarbamate flexibilizer, PU Polyether polyol flexibilizer, vinyl ether coatings Bis (4-vinyl oxy butyl) hexanediyibiscarbamate filexibilizer, skin care Dimethyl sulfone flocculant... [Pg.5292]

Polyvinyl chloride. Polyvinyl chloride (PVC) coatings, commonly called vinyls, are noted for their toughness, chemical resistance, and durability. They are available as solutions, dispersions, and lattices. Properties of vinyl coatings are listed in Table 10.15. They are applied as lacquers, plastisols, organisols, and lattices. PVC coating powders have essentially the same properties as liquids. PVC organ-isol, plastisol, and powder coatings have limited adhesion and... [Pg.862]

Powder coatings are not necessarily based on epoxy resins the first powder coatings were based on thermoplastic polymers, and polyolefin, vinyl polymer and polyamide coatings are still used. While those based on epoxy resins are very prominent, there are also polyester, polyurethane and acrylic thermosetting types which we will describe here. [Pg.209]

The most used thermosetting resins for powder coatings are EP (18%), acrylics (2%), unsaturated polyesters (28%), PU (7%), and hybrid systems (45%) and among thermoplastics, PA, polyolefins, PVC and poly vinyl fluoride are preferred [110, 111]. [Pg.76]

Producers of medium density fibreboard for the building industry opt for powder coatings instead of vinyl and laminate films because of waste savings, the environmental advantage of eliminating VOC-containing lamination adhesives and the possibility of using only a one-step process and not a multi-step one like lamination [116]. [Pg.77]


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See also in sourсe #XX -- [ Pg.308 ]




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