Aromatic sulfide amide polymer and a process for the production

Details Aromatic sulfide amide polymer and a process for the production Aromatic sulfide amide polymer and a process for the production

1987-09-14

1989-04-04

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528206, 528207, 528208, 528210, 528226, 528337, 528387, 528388, C08G 6368, C08G 7500

Patent

active

048188093

ABSTRACT:
Aromatic sulfide amide polymers composed of a repeating unit having the formula (I) and a repeating unit having the formula (II) below, having an inherent viscosity ranging from 0.02 to 10 dl/g. ##STR1## wherein, Ar.sup.1, Ar.sup.2, Ar.sup.3 and Ar.sup.4 are same or different aromatic rings and R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are groups selected from the group consisting of alkyl groups having 1-20 carbon atoms, cycloalkyl group having 3-20 carbon atoms, aryl groups having 6-20 carbon atoms, alkoxyl groups having 1-20 carbon atoms, acyl groups having 2-20 carbon atoms, and aralkyl groups having 7-20 carbon atoms, and the four R's may be the same or different from each other, and a, b, c and d stand for integers from 0-4 and may be the same or different from each other, and the process comprises sulfide forming reaction of an amide group containing dihalogenide expressed by the general formula (III) with an aromatic dihalogenide expressed by the general formula (IV) under the action of a sulfide forming reagent, ##STR2##

REFERENCES:
patent: 2706726 (1955-04-01), Evans et al.
patent: 3640965 (1972-02-01), Brode et al.

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