Process for preparing polysuccinimides from maleamic acid

Details Process for preparing polysuccinimides from maleamic acid Process for preparing polysuccinimides from maleamic acid

1992-07-10

1994-12-06

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528328, 528363, 526209, 526210, 526213, 526217, 526304, 524243, 524244, 524300, 524376, 524377, 524555, C08G 6910, C08G 7310

Patent

active

053711777

ABSTRACT:
A process is provided for preparing polysuccinimides by forming a polymerization mixture of poly(alkylene glycol), maleamic acid and, optionally one or more other amic acids, heating the mixture to an elevated temperature, and maintaining the mixture at the elevated temperature to form polysuccinimides.

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patent: 5219952 (1993-06-01), Koskan et al.
patent: 5296578 (1994-03-01), Koskan

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