Situ process for making multifunctional fuel additives
US4433977A · kind A · utility
4Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1981 |
| Grant date | Feb 28, 1984 |
| Priority date | — |
| Expiry date | Sep 21, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L1/224
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.