Synthesis and Structure of Fiber Forming Polymethylene Sulfones and Evaluation of Such a Polysulfone Fiber'

Carothers, W. H., U. S. Patent 2,201,884.

See for example. Hill. Rowland. "Fibers from Synthetic Polymers," Elsevier Pub. Co., New York. 312 (1953).

Noether, H. D., U. S. Patent 2,534,366.

Noether. H.D. , J. Polymer Sci. 25. 217 (1957).

Stuffer, E. , Ber 23. 3226 (1890).

Suter, C.M. , "The Organic Chemistry of Sulfur," John Wiley & Sons, N. Y., 757 ff. (1944). Also numerous patents concerning polymerization and stability of these polysulfones.

Suter, C.M. , loc. cit., 740, 754.