Process for the hydrolysis of poly(iminoimidazolidinediones) to

Details Process for the hydrolysis of poly(iminoimidazolidinediones) to Process for the hydrolysis of poly(iminoimidazolidinediones) to

1976-02-02

1977-06-07

Cockeram, H.S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 775AA, 260 775A, C08G 1882, C08G 1806

Patent

active

040283119

ABSTRACT:
Processes for the efficient sulfuric acid hydrolysis of poly(iminoimidazolidinediones) (PIPA) to the corresponding polyparabanic acids (PPA) have been developed. Process conditions can be manipulated to favor the formation of large crystalline particles of ammonium sulfate, a byproduct of the reaction, so that they can be readily separated from the reaction solution.

REFERENCES:
patent: 3661859 (1972-05-01), Patton

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