Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1989-11-03
1993-08-10
Ivy, C. Warren
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
548545, 252 515A, C07D20740
Patent
active
052350673
ABSTRACT:
A continuous process has been found for producing hydroxyacylated alkenyl-substituted mono- and bis- succinimides. The Mannich phenol coupled compositions are produced continuously as well. In the imidization reaction, an alkenyl succinic anhydride is contacted with a polyamine to form mono- and bis- polyamino alkenyl succinimides in continuous stirred tank reactor for a residence time of 1 to 3 hours. The reaction product is then, optionally Mannich base coupled. Finally, in the amidization, the mono- and bis- polyamino alkenyl succinimide is contacted with an acylating agent such as hydroxyacetic acid. Contacting is carried out in a continuous stirred tank reactor for a residence time of 3 to 6 hours. A hydroxyacylated alkenyl-substituted mono- and bis- succinimide product free of haze is produced in the absence of filtering, by reducing water continuously in all three reactors to a concentration of 0.4 wt %.
REFERENCES:
patent: 4364846 (1982-12-01), Kaufman
patent: 4636322 (1987-01-01), Nalesnik et al.
patent: 4699724 (1987-10-01), Nalesnik et al.
patent: 4713189 (1987-12-01), Nalesnik et al.
Allen Billy R.
Lemen John A.
Martin Bobby R.
Matthews Leonard A.
Chang Celia
Ivy C. Warren
Morgan Richard A.
Park Jack H.
Priem Kenneth R.
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