Production of polysuccinimide and derivatives thereof in a sulfu

Details Production of polysuccinimide and derivatives thereof in a sulfu Production of polysuccinimide and derivatives thereof in a sulfu

1996-12-18

1999-12-21

Hampton-Hightower, P.

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

Synthetic resins

From carboxylic acid or derivative thereof

528328, 528361, 528373, 525418, 525420, 548520, 548545, C08G 6910, C08G 7310

Patent

active

060050691

ABSTRACT:
Polysuccinimide of varying molecular weight has been prepared in a solvent system by heat polymerization of aspartic acid. The solvent system includes a sulfur oxygen acid and a sulfur oxygen acid salt. In a preferred embodiment, aspartic acid is polymerized in a liquid solvent reaction mixture at a temperature in the range of about 110.degree. C. to about 320.degree. C.

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