Aramid composition

Year	Description
1993	Invention patented by Robert S. Irwin on May 20th, 1993. 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.
1996	Invention patented by Beverly J. Selle on January 15th, 1996. Abstract: An aramid composition consisting essentially of repeat units derived from p-phenylenediamine, terephthalic acid, 3,3'-bibenzoic acid, and optionally chloroterephthalic acid, is disclosed. The aramids are especially useful for fibers, which after drawing usually have enhanced tensile moduli and strengths, which makes them especially useful in ropes and cables, and in composites.
Source: selected by the editor from original sources.

Invention: Aramid composition