Drawable high tensile strength aramids

Details Drawable high tensile strength aramids Drawable high tensile strength aramids

1991-02-27

1995-10-17

Acquah, Samuel A.

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

Synthetic resins

From carboxylic acid or derivative thereof

528179, 528183, 528318, 528324, 5283291, 528335, 528338, 528339, 428364, 428395, 4284744, C08G 6932

Patent

active

054592313

ABSTRACT:
Aramids which after drawing have high tensile strengths and tensile moduli are made from units derived from selected 2,2'-disubstituted-4,4'-diaminobiphenyls, p-phenylenediamine, oxydianiline and terephthalic acid. Also disclosed is a process for drawing such aramids at least 1.5%, which results in the drawn aramid having significant crystallinity and higher tensile strength. The aramids are useful for ropes and composites.

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