Phillips Petroleum Company was the first commercial producer of poly(phenylene sulfide), PPS, and manufactures today the full line of cured, linear, and branched polymers under the "Ryton" tradename. The plant in Borger, Texas, has been producing regular PPS polymer commercially since 1972. The company began commercial production of high molecular weight (HMW) polymers in 1977. Phillips Petroleum Chemicals NV (Brusselsesteenweg 355, B-3090 Overijse): "We are the industry leader in PPS technology, holding over 200 patents in this area."

Each polymer type (cured, linear, or branched) has unique properties that affect compound peformance. This allows tailor-make compounds to meet specific customer applications. Regardless of the polymer type utilized. "Ryton" PPS satisfies a broad range of physical, electrical, thermal, and chemical requirements.

READER SERVICE: Up-to-date press release with definitions and graphs demonstrating the performance characteristics inherent to a few of PPS polymer systems: PIE-No. 35372 – "Ryton" PPS brochure "High Performance Engineering Thermoplastics": PIE-No. 35373.