SCHERER MARKUS
,
STRITTMATTER JAN
,
BREITSCHEIDEL BORIS
权利要求:
1. A lubricant comprising a diester of adipic acid with a tridecanol mixture which comprises - 25 to 50 % of at least triply branched tridecanols, - 20 to 45 % doubly branched tridecanols, and - 10 to 25 % singly branched and/or linear tridecanols, and where the percentages are determined by gas chromatography, and where the tridecanol mixture comprises at least 95 wt% of linear or branched tridecanols.2. The lubricant according to claim 1 where the tridecannol mixture is obtained by hydroformylation and hydrogenation of a mixture of isomeric dodecenes.3. The lubricant according to claim 2 where the mixture of isomeric dodecenes is obtained by reacting a hydrocarbon mixture comprising butenes on a heterogeneous catalyst.4. The lubricant according to any of claims 1 to 3 where the tridecanol mixture comprises 40 to 48 % of at least triply branched tridecanols.5. The lubricant according to any of claims 1 to 4 where the tridecanol mixture comprises 30 to 40 % doubly branched tridecanols.6. The lubricant according to any of claims 1 to 5 where the tridecanol mixture comprises 15 to 20 % singly branched and/or linear tridecanols.7. The lubricant according to any of claims 1 to 6 where the tridecanol mixture comprises at least least 98 wt% of linear or branched tridecanols.8. The lubricant according to any of claims 1 to 7 where the tridecanol mixture comprises less than 15 %, preferably less than 5 wt%, and in particular less than 2 wt% dodecanol.9. The lubricant according to any of claims 1 to 8 where the tridecanol mixture comprises less than 5 %, preferably less than 3 wt%, and in particular less than 1 wt% tetradecanol.10. The lubricant according to any of claims 1 to 9 further comprising a base oil selected from mineral oils, polyalphaolefins, polymerized and interpolymerized olefins, alkyl naphthalenes, alkylene oxide polymers, silicone oils, phophate ester and carboxylic acid ester; and/or a lubricant additive.11. A method for reducing friction between moving surfaces comprising the step of contacting the surfaces with the lubricant as defined in any of claims 1 to 10.12. A use of the diester as defined in any of claims 1 to11 for reducing the viscosity index of a lubricant.13. A use of the diester as defined in any of claims 1 to 10 for reducing the pour point of a lubricant.14. A use of the diester as defined in any of claims 1 to 10 in axel lubrication, medium and heavy duty engine oils, industrial engine oils, marine engine oils, automotive engine oils, crankshaft oils, compressor oils, refrigerator oils, hydrocarbon compressor oils, very low-temperature lubricating oils and fats, high temperature lubricating oils and fats, wire rope lubricants, textile machine oils, refrigerator oils, aviation and aerospace lubricants, aviation turbine oils, transmission oils, gas turbine oils, spindle oils, spin oils, traction fluids, transmission oils, plastic transmission oils, passenger car transmission oils, truck transmission oils, industrial transmission oils, industrial gear oils, insulating oils, instrument oils, brake fluids, transmission liquids, shock absorber oils, heat distribution medium oils, transformer oils, fats, chain oils, minimum quantity lubricants for metalworking operations, oil to the warm and cold working, oil for water-based metalworking liquids, oil for neat oil metalworking fluids, oil for semi-synthetic metalworking fluids, oil for synthetic metalworking fluids, drilling detergents for the soil exploration, hydraulic oils, in biodegradable lubricants or lubricating greases or waxes, chain saw oils, release agents, molding fluids, gun, pistol and rifle lubricants or watch lubricants and food grade approved lubricants.