Aromatic-aliphatic dinitriles of the formula ##STR1## in which Ar is an arylene or substituted arylene are useful in the preparation of the corresponding amines which are intermediates for the preparation of thermally stable, rigid, polyamides.
Bis(aminoneopentyl) aromatics and polyamides derived therefrom
申请人:E. I. Du Pont de Nemours and Company
公开号:US04451642A1
公开(公告)日:1984-05-29
Aromatic-aliphatic diamines of the formula ##STR1## in which Ar is an arylene or substituted arylene are useful in preparing thermally stable, rigid, polyamides, polyureas and polyurethanes having a repeating unit of the formula ##STR2## in which Ar is arylene or substituted arylene, X is --NH-- or --O--, n is 0 or 1, and R is a divalent organic radical. Polymers of this invention can be melt-spun into thermally stable fibers.