PREPARATION OF POLYSUCCINIMIDE AND POLYASPARTIC ACID

PREPARATION OF POLYSUCCINIMIDE AND POLYASPARTIC ACID

Polysuccinimide is prepared by reaction of fumaric acid, maleic acid or a derivative thereof with urea, isourea, carbamic acid, ammonium carbamide, ammonium bicarbonate, diammonium carbonate or mixtures of the abovementioned substances in a reactor at temperatures of preferably 100 DEG C. to 300 DEG...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BINFURIITO IENTOGEN, HANSUUYOAHIMU TORENKUNAA, TORUSUTEN GUROTO, GERUTO SHIYUMITSUTSU, GIYUNTAA BEEMUKE
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:Polysuccinimide is prepared by reaction of fumaric acid, maleic acid or a derivative thereof with urea, isourea, carbamic acid, ammonium carbamide, ammonium bicarbonate, diammonium carbonate or mixtures of the abovementioned substances in a reactor at temperatures of preferably 100 DEG C. to 300 DEG C. over reaction times of preferably 0.5 minute to 300 minutes.