Process for synthesis of aromatic sulfides

Details Process for synthesis of aromatic sulfides Process for synthesis of aromatic sulfides

1990-08-30

1993-01-05

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From sulfur-containing reactant

528 86, 528271, 528360, 528361, 528362, 528373, C08G 7514, C08G 6300, C08G 6368, C08G 6344

Patent

active

051771837

ABSTRACT:
Aromatic sulfides including diarylsulfides and poly(arylene sulfides) are produced in a novel synthesis in high yield under moderate conditions by heating an aromatic disulfide in the presence of aromatic halide, in which the halide is chloride, bromide or iodide; the diaryl sulfides are useful precursors and starting materials for a range of compounds and the poly(arylene sulfides) are important high temperature engineering thermoplastics.

REFERENCES:
patent: 3354129 (1967-11-01), Edmonds, Jr. et al.
patent: 3870686 (1975-03-01), Campbell
patent: 4605732 (1986-08-01), Heitz et al.
patent: 4786713 (1988-11-01), Rule et al.
patent: 4857629 (1989-08-01), Rule et al.
patent: 4859762 (1989-08-01), Rule et al.
patent: 4983720 (1991-01-01), Tsuchida et al.
H. Wayne Hill, Jr. et al, Polymer Engineering and Science, Dec. 1976, vol. 16, No. 12, "Properties, Environmental Stability, and Molding Characteristics of Polyphenylene Sulfide", pp. 831-835.

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