Polyphenylene Sulfide PPS Ryton

W. Polyphenylene sulfide (PPS) (Ryton , Supec )—starting monomers para-dichlorobenzene and Na2S... [Pg.31]

Polyphenylene sulfide Polyphenylene sulfide PPS Ryton, Supec, Fortron... [Pg.134]

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. [Pg.92]

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. [Pg.175]

There have been several earlier attempts to make polyphenylene sulfide (PPS), but in the late 1960s, workers at Phillips Petroleum developed the first commercial process [36]. Sodium sulfide reacts with p-dicldorobenzene in a polar organic solvent. Common trade names are Ryton (Phillips Petroleum)... [Pg.128]

Polyphenylene sulfide (PPS) Fortron Ryton Ticona Phillips High temperature applications in electronics, housings, industrial, automotive, lamps, lighting fixtures... [Pg.509]

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. [Pg.101]

Ryton PPS—Polyphenylene Sulfide Res- 45. ins—Properties and Uses of Anti-Friction Compounds, TSM-262, Phillips Petroleum Company, Bartlesville, OK, October 1974. [Pg.83]

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