ORI-inhibited and deposit-resistant motor fuel composition
US4852993A · kind A · utility
13Cited by
11References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1987 |
| Grant date | Aug 1, 1989 |
| Priority date | — |
| Expiry date | Aug 12, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L1/2383
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
ORI-inhibited and deposit-resistant motor fuel composition comprises a mixture of hydrocarbons boiling in the range of 90.degree. F.-450.degree. F. and (I) the reaction product of a dibasic acid anhydride, a polyoxyalkylene diamine, and a hydrocarbyl polyamine; and (II) a mixture comprising polyisobutylene ethylene diamine and polyisobutylene in a hydrocarbon solvent. Motor fuel compositions of the instant invention show improved ORI control and valve deposit control in comparison with typical commercial fuel compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.