Production of arylene sulfide polymer beads

Details Production of arylene sulfide polymer beads Production of arylene sulfide polymer beads

1983-01-06

1984-05-29

Marquis, Melvyn I.

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

Synthetic resins

From sulfur-containing reactant

524726, C08G 7514

Patent

active

044516436

ABSTRACT:
A method for producing a polymer in which lithium hydroxide, optionally also employing either lithium chloride or lithium acetate, is contacted with N-methyl-pyrrolidone in the presence of lithium halide to produce a reaction product mixture containing lithium N-methyl-4-aminobutyrate with this reaction mixture then being contacted with hydrogen sulfide and polyhalo aromatic compound in the presence of additional N-methyl-pyrrolidone under conditions to form a polymer. Lithium halide produced as a by-product is substantially recovered from the reaction mixture, converted to lithium hydroxide and can be recycled to the process.

REFERENCES:
patent: 3884884 (1975-05-01), Scoggins et al.
patent: 4024118 (1977-05-01), Campbell et al.
patent: 4025496 (1977-05-01), Anderson et al.
patent: 4038263 (1977-07-01), Edmonds, Jr. et al.
patent: 4060520 (1977-11-01), Irvin

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