Production of aromatic polysulphones

Details Production of aromatic polysulphones Production of aromatic polysulphones

1981-09-22

1983-11-15

Lee, Lester L.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528125, 528126, 528128, 528174, 528391, C08G 7523

Patent

active

044157207

ABSTRACT:
Aromatic polysulphones are prepared by the reaction under substantially anhydrous conditions in the presence of a fluoroalkane sulphonic acid, particularly trifluoromethane sulphonic acid or difluoromethane sulphonic acid, of the reactants selected from the following class:

REFERENCES:
patent: 3418277 (1968-12-01), Cohen
patent: 4094867 (1978-06-01), Jones
patent: 4229564 (1980-10-01), Dahl
Chemical Abstracts, vol. 67, p. 10299, Abstract No. 109055f (1967).

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