Method for preparing polysuccinimides using a rotary tray dryer

Details Method for preparing polysuccinimides using a rotary tray dryer Method for preparing polysuccinimides using a rotary tray dryer

1994-01-12

1996-02-13

Hampton-Hightower, P.

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

Synthetic resins

From carboxylic acid or derivative thereof

528310, 528328, 525419, 525420, C08G 6910

Patent

active

054912121

ABSTRACT:
A method for producing polysuccinimides is provided. A rotary tray dryer operating at an internal temperature of from about 110.degree. to about 300.degree. C. and providing a residence time of from about 1 hour to about 10 hours is used in the polycondensation of one or more amino acids, amic acids or ammonium salts of monoethylenically unsaturated dicarboxylic acids to produce polysuccinimides.

REFERENCES:
patent: 3728797 (1973-04-01), Worden, Sr. et al.
patent: 4839461 (1989-06-01), Boehmke
patent: 5057597 (1991-10-01), Koskan
patent: 5247068 (1993-09-01), Donachy et al.
patent: 5284936 (1994-02-01), Donachy et al.
patent: 5319145 (1994-06-01), Paik et al.
patent: 5329020 (1994-07-01), Kalota et al.
patent: 5371179 (1994-12-01), Paik et al.

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