PROCESS FOR THE MANUFACTURE OF POLYAMINO ACIDS

PROCESS FOR THE MANUFACTURE OF POLYAMINO ACIDS

A process for the manufacture of polyamino acids, particularly polyaspartic acid. A solid, particulate, amino acid is fluidized by agitation in a nitrogen atmosphere and heated to a temperature of at least 180 DEG C. and maintained at that temperature for a sufficient amount of time to polymerize th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: KOSKAN, LARRY, P
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:A process for the manufacture of polyamino acids, particularly polyaspartic acid. A solid, particulate, amino acid is fluidized by agitation in a nitrogen atmosphere and heated to a temperature of at least 180 DEG C. and maintained at that temperature for a sufficient amount of time to polymerize the amino acid and to drive off water from the heated bed. A degree of agitation sufficient to substantially fluidize the particles is provided and a particle size of no more than 150 microns is maintained throughout the process. The resultant anhydropolyamino acid is then hydrolyzed to a polyamino acid.