Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1993-05-21
1994-08-02
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528338, 528339, 528340, 528344, 528348, 4284744, 428395, C08G 6926
Patent
active
053346939
ABSTRACT:
Aramids having repeat units derived from p-phenylenediamine, 4,4'-bis(3-aminophenoxy)biphenyl and terephthalic acid. These aramids have good strength properties, particularly after drawing, and good high temperature properties. The aramids are useful for fibers and films.
REFERENCES:
patent: 4217227 (1980-08-01), Elfert et al.
patent: 4239880 (1980-12-01), Darms
E. I. Du Pont de Nemours and Company
Evans Susan Borden
Hampton-Hightower P.
Kight III John
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