Preparation of polyamides from carbon monoxide, diamine and diiodide
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United States of America Patent
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Apr 14, 1992
Grant Date -
N/A
app pub date -
Jun 1, 1990
filing date -
Jun 1, 1990
priority date (Note) -
Expired
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Abstract
A process for the preparation of aromatic polyamides comprises reacting carbon monoxide, a diamine and an aromatic polyiodide having at least two iodine atoms covalently bonded to an aromatic ring in non-ortho positions. The process is conducted in the presence of a solvent, a catalyst and a base at a pressure greater than about 15 psia (1.05 kg/cm.sup.2).
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