Ryton polyphenylene sulfide

Newer fabrics, not in common use but in development, test, and field trials, are described for higher temperature applications by Reference [50]. Application to 400°F—2100°F are potentially available using ceramic fibers Nextel 312 , laminated membrane of expanded PTFE on a substrate, polyimid fiber P-84, Ryton polyphenylene sulfide, and woven fiberglass. The heat and acid resistance of these new materials... 

RYTON Polyphenylene sulfide Physical, Chemical, Thermal, and Electrical Properties, TSM-266, Phillips Chemical Co., Bartlesville, Okla., Apr. 1981, p. 2. 

In other high-temperature tests, Ryton polyphenylene sulfide coatings on aluminum will pass an 80 inch-pound reverse impact test after exposure in air at 600°F for eight days, or at 700°F for two days (Table VIII). 

Ryton polyphenylene sulfide coatings are finding excellent acceptance as corrosion-resistant, protective coatings for oil-field pipe, valves,... 

Figure 6. A CP/MAS NMR spectrum of Ryton (polyphenylene sulfide). The signals occur at 135 and —133 ppm (from an external reference of TMS).

Ryton Polyphenylene Sulfide is a new commercial plastic which is characterized by good thermal stability, retention of mechanical properties at elevated temperatures, excellent chemical resistance, a high level of mechanical properties, and an affinity for a variety of fillers. It is produced from sodium sulfide and dichlorobenzene. Its unusual combination of properties suggests applications in a variety of molded parts such as non-lubricated bearings, seals, pistons, impellers, pump vanes, and electronic components. Tough coatings of polyphenylene sulfide can be applied to metals or ceramics by a variety of techniques and are used as protective, corrosion-resistant coatings in the chemical and petroleum industries. Incorporation of small amounts of polytetrafluoroethylene provides excellent non-stick properties in both cookware and industrial applications. 

Ryton Polyphenylene sulfide 170 — Good Good Good Fair... 

Ryton Polyphenylene Sulfide Compounds Engineering Properties ,... 

Between 1967 and 1973, workers at Phillips refined the new polymerization process, defined physical properties, constructed and operated a pilot plant, established market demand for such a material and designed and constructed a full-scale commercial plant. In late 1972 the world s first polyphenylene sulfide plant came on stream in the Phillips Petroleum Company facility in Borger, Texas. The original plant had a nameplate capacity of 5 MM pounds per year. Subsequently, it has been enlarged and debottlenecked to its present capacity of 12 MM pounds per year. This material is sold under the tradename Ryton Polyphenylene Sulfide. 

Fortunately in the development of Ryton Polyphenylene Sulfide at Phillips Petroleum Company, all of the above factors were present throughout the project, thus contributing to its success. Once a new product becomes profitable, the same sort of backing is required to continue the growth of the market. However, this backing is generally easier to achieve since everyone likes a winner. 

RYTON polyphenylene sulfide resins and compounds are engineering thermoplastics developed by Phillips Petroleum Company. Available in both molding and coating grades, these materials feature excellent dimensional stability, inherent flame retardancy, thermal stability, chemical resistance, desirable electrical properties and ease of processing. 

Rotary Actuator A device for converting hydraulic energy into rotary motion. Ryton A polyphenylene sulfide elastomer. 

In the Phillips process, polyphenylene sulfide (PPS) is obtained from the polymerization mixture in the form of a fine white powder, which, after purification, is designated Ryton V PPS. Characterization of this polymer is complicated by its extreme insolubility in most solvents. At elevated temperatures, however, Ryton V PPS is soluble to a limited extent in some aromatic and chlorinated aromatic solvents and in certain heterocyclic compounds. The inherent viscosity, measured at 206°C in 1-chloronaphthalene, is generally 0.16, indicating only moderate molecular weight. The polymer is highly crystalline, as shown by x-ray diffraction studies (9). The crystalline melting point determined by differential thermal analysis is about 285°C. 

One very interesting application for polyphenylene sulfide is in coating cookware for nonstick use (10). Excellent, scratch-resistant, nonstick coatings are obtained when a formulation containing 10 to 20% polytetrafluoroethylene is used. Ryton PPS coatings are very insoluble and nontoxic, animal feeding studies indicate. 

The cross polarization, or CP, process may be used with any or all of the line narrowing techniques to obtain NMR spectra of solids with resolution approaching that of liquids ). A combination of cross polarization (CP), magic angle spinning (MAS) and dipolar decoupling were used to obtain the spectrum of a very insoluble polyphenylene sulfide (Ryton) as shown in Fig. 6. 

Ryton Phillips Petroleum s trade name for its family of polyphenylene sulfide plastics. 

Polyphenylene-Sulfide (PPS) Developed in 1968, PPS was commercially introduced in 1973 (Ryton). This is a prominent engineering polymer, of the HT family, withstanding very high temperatures (arovmd 280 C). It is considered borderline between thermoplastic and thermosetting. Its basic stmcture consists of an aromatic core bonded to sulfur in the para-position. 

Ryton R-404] Ryton R-406] Ryton R-702] Ryton V-1. See Polyphenylene sulfide resin Ryuron Graft H-110] Ryuron Graft H-120] Ryuron Graft H-130. See EVA/PVC graft polymer Ryuron Paste. See Polyvinyl chloride Ryuron TC-705. See Vinyl chloride/vinyl acetate copolymer... 

EMI-X PDX-O-91074 Fortron 0103B5 Fortron 0205B4 Fortron 0214B1 Fortron 0300B0 Polyphenylene sulfide resin RTP 1378 Ryton A-200 Ryton R-4XT R on R-7... 

Polyphenylene oxide (Noryl from GE) and polyphenylene sulfide (Ryton from Phillips) are used as high-temperature engineering plastics. Polyphenyl ether sulfones are manufactured by a number of companies under a variety of trade names including 720P, 220P by ICI and RADEL by Union Carbide. They are generally used as injection-moldable thermoplastics and in the adhesive and composite industry. 

Polyphenylene sulfide is a partially crystalline polymer featuring an aromatic ring bridged by sulfur atoms in the 1,4-positions, as shown below. The form presented has the trade name of Ryton. Sample preparation of this material can be difficult, and the traditional KBr pellet method produces a poor-quality spectrum with Christiansen-type distortion (see Fig. 44b). A Csl pellet may be used instead to obtain an improved IR spectrum, suitable for quantitative analysis (see Fig. 44a). This polymer is usually used in conjunction with structural reinforcement additives, such as glass fibers or fillers such as PTFE (Teflon), and caution is necessary when attempting... 

Technical Information on Ryton, 44. Polyphenylene Sulfide Resins 100—Properties, Processing, Phillips Petroleum Company, Bartlesville, OK, Undated. 

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