|
| US4559155 | 12 mars 1985 | 17 déc. 1985 | The Lubrizol Corporation | Hydrocarbyl substituted carboxylic acylating agent derivative containing combinations, and fuels containing same |
| US4564460 | 9 août 1982 | 14 janv. 1986 | The Lubrizol Corporation | Hydrocarbyl-substituted carboxylic acylating agent derivative containing combinations, and fuels containing same |
| US4575526 | 12 mars 1985 | 11 mars 1986 | The Lubrizol Corporation | Hydrocarbyl substituted carboxylic acylaging agent derivative containing combinations, and fuels containing same |
| US4608411 | 23 oct. 1985 | 26 août 1986 | Societe Nationale Elf Aquitaine | Grafted ethylene polymers usable more especially as additives for inhibiting the deposition of paraffins in crude oils and compositions containing the oils and said additives |
| US4613342 | 16 oct. 1985 | 23 sept. 1986 | The Lubrizol Corporation | Hydrocarbyl substituted carboxylic acylating agent derivative containing combinations, and fuels containing same |
| US4623684 | 16 oct. 1985 | 18 nov. 1986 | The Lubrizol Corporation | Hydrocarbyl substituted carboxylic acylating agent derivative containing combinations, and fuels containing same |
| US4862908 | 14 juil. 1987 | 5 sept. 1989 | Ruhrchemie Aktiengesellschaft | Mineral oils and mineral oil distillates having improved flowability and method for producing same |
| US6017370 | 25 sept. 1998 | 25 janv. 2000 | The Lubrizol Corporation | Fumarate copolymers and acylated alkanolamines as low temperature flow improvers |
| US6610110 | 11 févr. 2000 | 26 août 2003 | The Lubrizol Corporation | Aviation fuels having improved freeze point |
