Preparation of polysuccinimide

Details Preparation of polysuccinimide Preparation of polysuccinimide

1993-10-05

1994-07-12

Lee, Mary C.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D20740

Patent

active

053290208

ABSTRACT:
The present invention relates to a process for the production of polysuccinimide by the thermal condensation of aspartic acid wherein the rate of reaction is increased by contacting the aspartic acid with a gas containing a catalytic amount of carbon dioxide. When the atmosphere in contact with the aspartic acid during the condensation reaction contains about 10 percent, by volume, carbon dioxide, substantially complete conversion to the polymer occurs within about one hour when the reaction is performed in a tray dryer.

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