Billy R Allen

44339771, Feb 28, 1984

Sep 21, 1981

6/303735

Robert C. Carrier - Austin TX
Billy R. Allen - Bridge City TX

Texaco Inc. - White Plains NY

C10L 122

44 60

Disclosed is an in situ or "one pot" process for making a fuel additive comprising reacting an excess of at least one N-primary alkylalkylene diamine with maleic anhydride in the presence of from 20 to 36 weight percent of a mineral oil reaction diluent at a temperature ranging from ambient to about 225. degree. F. and recovering a product containing a primary aliphatic hydrocarbon amino alkylene substituted asparagine, an N-primary alkylalkylene diamine in the reaction oil with the product having a by-product succinimide content not in excess of 1. 0 weight percent, based on the weight of asparagine present.

52350673, Aug 10, 1993

Nov 3, 1989

7/431053

Billy R. Allen - Bridge City TX
Bobby R. Martin - Beaumont TX
John A. Lemen - Port Arthur TX
Leonard A. Matthews - Port Arthur TX

Texaco Inc. - White Plains NY

C07D20740

548520

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 %.