润滑科技信息平台

机械工程学会摩擦学分会固体润滑国家重点实验室摩擦学学报

一种铵基离子液体及其作为润滑油添加剂的用途

专利摘要

一种铵基离子液体化合物,其包含三正辛基甲基铵阳离子和羧酸根阴离子。包含它的润滑剂组合物,及其作为润滑剂、特别是船用润滑剂中的清净剂和/或抗腐蚀添加剂的用途。 ......

基本信息

专利类型:
发明专利
申请/专利号:
EP2024150300
申请日期:
2021-04-07
专利申请人:
分类号:
["C10M133/06","C10N20/00","C10N30/04","C10N30/12","C10N40/25"]
发明/设计人:
DE FEO, MODESTINO ， PICHON, VANESSA ， SCHUBERT, THOMAS ， ILIEV, BOYAN
权利要求: 1. Use of an ammonium-based ionic liquid compound in a lubricant composition as anti-corrosion additive, wherein the ammonium-based ionic liquid compound corresponds to formula (I) [CAT+] [X-] (I) wherein [CAT+] is tri-n-octylmethylammonium, and [X-] is selected from compounds of formula (IA): wherein R is selected from linear or branched alkyl and alkenyl groups comprising from 2 to 8 carbon atoms.2. The use according to claim 1, wherein in formula (IA), R represents a linear or branched alkyl group comprising from 2 to 8 carbon atoms.3. The use according to claim 2, wherein in formula (IA), R represents a linear or branched alkyl group comprising from 4 to 8 carbon atoms, preferably from 5 to 7 carbon atoms.4. The use according to claim 3, wherein [X-] is 2-ethylhexanoate.5. The use according to any one of the precedent claims, wherein the lubricant composition is a marine lubricant for lubricating a marine engine, preferably a two-stroke marine engine.6. Method to reduce and/or eliminate and/or delay the corrosion in the internal parts of a combustion engine, the method comprises at least a step of application to said combustion engine of an ammonium-based ionic liquid compound corresponding to formula (I) [CAT+] [X-] (I) wherein [CAT+] is tri-n-octylmethylammonium and [X-] is selected from compounds of formula (IA): wherein R is selected from linear or branched alkyl and alkenyl groups comprising from 2 to 8 carbon atoms.7. The method according to claim 6, wherein in formula (IA), R represents a linear or branched alkyl group comprising from 2 to 8 carbon atoms.8. The method according to claim 7, wherein in formula (IA), R represents a linear or branched alkyl group comprising from 4 to 8 carbon atoms, preferably from 5 to 7 carbon atoms.9. The method according to any one of claims 6 to 8, wherein the ammonium-based ionic liquid compound of formula (I) is tri-n-octylmethylammonium 2-ethylhexanoate.10. The method according to any one of claims 6 to 9, wherein the ammonium-based ionic liquid compound of formula (I) is applied in a lubricant composition comprising: • from 30.0 to 99.95 % of at least one base oil, • from 0.05 to 15.0 % of the ammonium-based ionic liquid compound of formula (I), the percentages being defined by weight of component with respect to the total weight of the composition.11. The method according to claim 10, wherein the lubricant composition comprises: • from 30.0 to 94.0 % of at least one base oil, • from 0.05 to 15.0 % of the ammonium-based ionic liquid compound of formula (I), • from 1 to 35% of at least one detergent selected from neutral and overbased detergents having a Total Base Number according to ASTM D2896 of from 20 to 450 mg KOH/g, the percentages being defined by weight of component with respect to the total weight of the composition.12. The method according to any one of claims 6 to 11, wherein the combustion engine is a marine engine.13. The method according to claim 12, wherein the marine engine is a two-stroke marine engine.14. The method according to any one of claims 6 to 13, wherein the ammonium-based ionic liquid or the lubricant composition is applied to the cylinder wall, preferably by a pulse lubricating system or by spraying the ionic liquid or the composition onto the piston's rings pack through an injector.