Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1990-03-12
1991-05-28
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528170, 528212, 558413, C08G 7314, C08G 6538, C08G 6926, C07C25500
Patent
active
050196421
ABSTRACT:
A diamine compound represented by general formula (I): ##STR1## wherein R is as defined in the specification a group of formula (II) ##STR2## where R.sup.1 and R.sup.2 as defined in the specification or a group of formula (III) ##STR3## where R.sup.1 and R.sup.2 have the same meanings as defined above, and Z is as defined in the specification, or --SO.sub.2 --. The diamine compound is produced by reducing a dinitro compound of general formula (IV) ##STR4## wherein R has the same meaning as defined above. Imidation of the diamine compound with a tetracarboxylic acid dianhydride produces a polyamideimide resin having a repeating unit represented by general formula (V): ##STR5## wherein Ar and Ar.sup.1, which are as defined in the specification R.sup.3 is a group of general formula (VI) below: ##STR6## where R has the same meaning as defined above; R.sup.4 is as defined in the specification and m and n are each zero or a positive integer which satisfy m.gtoreq.2n.
REFERENCES:
patent: 3382261 (1968-05-01), Kittredge et al.
Patent Abstracts of Japan, unexamined application, C field, vol. 10, No. 310, Oct. 22, 1986, p. 155 C 379 Kokai-no. 61-122 255.
Patent Abstracts of Japan, unexamined applications, C field, vol. 9, No. 241, Sep. 27, 1985, p. 50 C 306, Kokai-no. 60-99 133.
Kight III John
Shelborne Kathryne J.
Tomoegawa Paper Co. Ltd.
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