Production of polyamides in the presence of a phosphorus acid es

Details Production of polyamides in the presence of a phosphorus acid es Production of polyamides in the presence of a phosphorus acid es

1973-10-12

1976-01-13

Anderson, Harold D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 457P, 260 47CZ, 260 78A, C08G 6928

Patent

active

039323641

ABSTRACT:
Polyamides are produced by reacting a dicarboxylic acid with a diamine or polycondensing an amino acid in the presence of a phosphorous acid ester of the formula, R.sup.3.R.sup.4.HPO.sub.3, wherein R.sup.3 and R.sup.4 may be the same or different and are individually an alkyl, aralkyl or aromatic group which may have at least one substituent, such as diphenyl phosphite, and an organic base such as pyridine.

REFERENCES:
floyd- Polyamide Resins, Second Edition, 1966, pp. 48-49.

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