Method for preparing polysuccinimides with a rotary tray dryer

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

1992-07-10

1994-06-07

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528310, C08G 6910

Patent

active

053191455

ABSTRACT:
A method for producing polysuccinimides is provided. A rotary tray operating at an internal temperature of from about 110 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: 3052655 (1962-09-01), Fox et al.
patent: 3474083 (1969-10-01), Shiga et al.
patent: 3728797 (1973-04-01), Worden, Sr. et al.
patent: 3846380 (1974-11-01), Fujimoto et al.
patent: 4590260 (1986-05-01), Harada et al.
patent: 4839461 (1989-06-01), Boehmke
patent: 4996292 (1991-02-01), Fox et al.
patent: 5057597 (1991-10-01), Koskan

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