Sulfar Fiber

First U.S. Commercial Sulfar Fiber Production: 1983, Phillips Fibers Corporation, A Subsidiary of Phillips 66 Company

Current U.S. Sulfar Fiber Producers: (Sulfar is not produced in the United States. The only producer is Toray Industries, Inc. Japan)

Federal Trade Commission Definition for Sulfar Fiber: A manufactured fiber in which the fiberforming substance is a long synthetic polysulfide in which at least 85% of the sulfide (-S_n-) linkages are attached directly to two (2) aromatic rings. (Complete FTC Fiber Rules here.)

Basic Principles ofSulfar Fiber Production — The PPS (polyphenylene sulfide) polymer is formed by reaction of sulfur with dichlorobenzene and then extruded by melt spinning to produce both staple and filament fibers.