Solvent-free esterification of carboxyaromatics

Details Solvent-free esterification of carboxyaromatics Solvent-free esterification of carboxyaromatics

1982-03-08

1983-07-26

Trousof, Natalie

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

544388, 544406, 546170, 546326, 546327, 548492, 549 71, 549501, 560 11, 560 17, 560 52, 560 81, 560 84, 560 91, 560 93, C07C 6708

Patent

active

043955665

ABSTRACT:
An improved process for exterifying carboxyaromatics is disclosed wherein an anhydride of a carboxyaromatic, such as pyromellitic dianhydride, is reacted with a fluorinated alcohol and an epoxide to give a mixed ester capable of imparting oil and/or water repellency to textiles. The improvement comprises utilizing the epoxide as the reaction medium to reduce reaction times and waste water treatment requirements.

REFERENCES:
patent: 3870748 (1975-03-01), Katsushima et al.
patent: 4134839 (1979-01-01), Marshall
patent: 4209610 (1980-06-01), Mares et al.
patent: 4252982 (1981-02-01), Oxenrider
patent: 4329489 (1982-05-01), Saunders et al.

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