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U.S. Department of Energy
Office of Scientific and Technical Information

Diesel fuel comprising a glycolated Mannich coupled bis-succinimide detergent

Patent ·
OSTI ID:7024304
This patent describes a diesel fuel composition. It comprises a major portion of a diesel fuel, and a minor amount, as a diesel fuel injector detergent, of a glycolated Mannich coupled product of bis-polyisobutylene succinimide of a polyamine, prepared by: reacting an alkenylsuccinic acid anhydride; treating the bis-succinimide with a nonylphenol in the presence of an aldehyde to form a Mannich phenol coupled bis-succinimide product; glycolating the Mannich phenol coupled bis-succinimide product with glycolic acid to form a glycolated Mannich phenol coupled bissuccinimide product; and recovering the glycolated Mannich phenol coupled bis-succinimide product.
Assignee:
Texaco Inc., White Plans, NY (United States)
Patent Number(s):
US 5122161; A
Application Number:
PPN: US 7-636469
OSTI ID:
7024304
Country of Publication:
United States
Language:
English