Process for the manufacture of polyamides utilizing a mixture of an oxygenated phosphorus compound and a molybdenum compound as catalyst
AssigneeThe Standard Oil Company
InventorsBenedict S. Curatolo, Robert C. Sentman, Gerald P. Coffey
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Abstract
The process for manufacturing a nylon-type polyamide from a dinitrile, a diamine, water and a catalyst is improved by using as a catalyst an oxygenated phosphorus compound and a molybdate compound. For example, high quality nylon-6,6 is manufactured by contacting adiponitrile, hexamethylene diamine, water with disodium phosphite and sodium molybdate at an elevated temperature and pressure.
Claims23
In a process for the manufacture of a solid polyamide, the process comprising contacting an .alpha.,.omega.-dinitrile, an .alpha.,.omega.-diamine, water and a catalyst at an elevated temperature and pressure, the improvement comprising using as the catalyst an oxygenated phosphorus compound and a molybdenum compound.
Dependencies are inferred from the claim text.