Multifunctional additive compositions enabling middle distillates to be operable in cold conditions
US8100988B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Feb 4, 2008 |
| Grant date | Jan 24, 2012 |
| Priority date | — |
| Expiry date | Oct 27, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L10/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention concerns a multifunctional additive enabling fuels to be operable in cold conditions, consisting of copolymers of at least a dicarboxylic compound with at least an olefin, and whereon are grafted nitrogenous functions and/or esters of general formula (1) wherein: R1 and R2, and R4 and R5, R3 and R6 are hydrogen or alkyl radicals, and x is selected among the amine salts and N-alkylpolyalkylenepolyamines and their monohydroxylated and polyhydroxylated derivatives, N-alkylpolyalkylenepolyamine alkylesters and esters, and alkylamines and N-alkylpolyalkylenepolyamines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.