Classifications

• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
  • C10M169/04—Mixtures of base-materials and additives
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M111/00—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential
  • C10M111/04—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential at least one of them being a macromolecular organic compound
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
  • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
  • C10M2205/024—Propene
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
  • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
  • C10M2205/024—Propene
  • C10M2205/0245—Propene used as base material
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
  • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
  • C10M2205/026—Butene
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
  • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
  • C10M2205/026—Butene
  • C10M2205/0265—Butene used as base material
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
  • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
  • C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
  • C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms used as base material
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
  • C10M2207/28—Esters
  • C10M2207/283—Esters of polyhydroxy compounds
  • C10M2207/2835—Esters of polyhydroxy compounds used as base material
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
  • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
  • C10M2209/084—Acrylate; Methacrylate

Definitions

• the invention relates to a lubricant composition, which is a poly-alpha-olefin with side chains 6 to 14 carbon atoms, optionally a polyalkyl methacrylate and / or a polyisobutylene and / or a Olefin copolymer, optionally together with an ester and at least one anti-wear additive, non-ferrous metal inhibitor, Antioxidant, anti-corrosion additive and / or a detergent.
• a lubricant composition which is a poly-alpha-olefin with side chains 6 to 14 carbon atoms, optionally a polyalkyl methacrylate and / or a polyisobutylene and / or a Olefin copolymer, optionally together with an ester and at least one anti-wear additive, non-ferrous metal inhibitor, Antioxidant, anti-corrosion additive and / or a detergent.
• Lubricant Of essential importance is the influence of Lubricant on the protection of the wear stocks the energy-intensive components to be lubricated to be lubricated.
• the lifetime extension of components is a much more important aspect for environmental protection as the use of a lubricant, which only the Advantage of rapid biodegradability demonstrates.
• This holistic view on the use of Lubricants will be increasingly taken into account must, also from the constraint, the competitiveness by reducing operating costs.
• ester-based lubricants have quite a few known disadvantages of the literature. You can when mixing with oils based on mineral oil to unwanted Reactions lead. Furthermore, are Spüluge employmente Fresh oil losses in the amount of 2-4 times the amount of Oil circulation at oiling due to incompatibilities required. They also show a Hydrolyseinstabiltician in the presence of water, which in turn Water filter z. B. in the hydraulics required to to avoid smallest water contents. They show one certain aggressiveness towards elastomers, which originally were designed for mineral oil, which in turn Special elastomers required for hoses and seals power. Due to increased leaks due to Elastomer failure can cause losses and / or contamination of lubricants into the environment.
• polyalkylene glycol-based Lubricants following disadvantages. They are not miscible with mineral oils and usually require special Elastomers. The improvement of lubricity by additization is severely limited and the Water solubility / water insolubility may vary according to molecular structure be disadvantageous.
• the object of the present invention is to provide a To provide lubricant composition which both meets the requirements for environmental compatibility as well as higher performance in the application in the Compared to the conventional mineral oil or ester-based Lubricants.
• should present invention provides lubricant compositions, which with increased viscosity and under Maintaining the required high performance nevertheless ensure rapid biodegradability.
• the present invention relates to a lubricant composition
• a lubricant composition comprising 60 to 98 weight percent of at least one poly-alpha-olefin having side chains of 6 to 14 carbon atoms and 0.2 to 20 weight percent of at least one anti-wear additive, non-ferrous metal inhibitor, antioxidant, anti-corrosion additive and / or detergent.
• side chains of the poly-alpha-olefins with 8 to 14 C atoms, more preferably 10 to 14 C atoms, even more preferably having 11-14 C-atoms and in particular preferably with 12-14 C-atoms.
• the poly-alpha-olefins have the following structure wherein n is the number of carbon atoms of the side chains and is between 6 and 14.
• X indicates the degree of polymerization and is in the range to give average molecular weights of 400-700 g / mol, preferably 500-600 g / mol, and particularly preferably 530-580 g / mol.
• a polymeric molecule need not, as the above structural formula would suggest, contain only side chains of equal length.
• the side chains may have different lengths, depending on which monomers or monomer mixtures were used.
• the prerequisite is that the length of all side chains is in the range from 6 to 14 carbon atoms, ie the side chains thus have the following structures: -C 6 H 13 , -C 7 H 15 , -C 8 H 17 , -C 9 H 19 , -C 10 H 21 , -C 11 H 23 , C 12 H 25 , -C 13 H 27 , -C 14 H 29 ⁇
• the use of longer-chain poly-alpha-olefins with a preferred number of carbon atoms the side chains of 10-14, more preferably of 11-14, and more preferably from 12-14 a strong viscosity increase while retaining high performance and a fast biological Degradability.
• the present invention provides thus providing high performance lubricant compositions, which are good and fast biodegradable and due to the use of longer chain poly-alpha-olefins have an increased viscosity, which so far only through the use of low-viscosity poly-alpha-olefins up to approx. ISO VG 15 - 22 guaranteed could be.
• the lubricant composition according to the invention preferably contains 70-98% by weight, more preferably 74-98 Wt .-% and particularly preferably 76 - 97.5 wt .-% poly-alpha-olefin.
• Olefin copolymers are known alternative viscosity index improvers. These are at certain Lubricant groups may be better suited than Polymethacrylates. Depending on the requirement for shear stability may need to olefin copolymers as viscosity improvers be omitted or a determination of the Type and dosage take place.
• the lubricant composition according to the invention preferably contains 0.1-25% by weight, more preferably 5-20 Wt .-% and particularly preferably 8 - 18 wt .-% polyalkyl methacrylate and / or polyisobutylene and / or at least an olefin copolymer.
• Polyisobutylene and / or at least An olefin copolymer may also be at least one other Polymer are used, which are not significant performance-reducing changes to the lubricant composition Has.
• the lubricant composition according to the invention preferably contains 0.5-26 wt.%, More preferably 1.0. 24% by weight and especially preferably 2.0-22% by weight Ester.
• the esters are preferably selected from the group containing polyol ester, neopentyl glycol (NPG) ester, Trimethylolpropane (TMP) ester and pentaerythritol (PENTA) ester.
• NPG neopentyl glycol
• TMP Trimethylolpropane
• PENTA pentaerythritol
• the TMP esters, NPG esters, PENTA esters as well the polyol esters are preferably completely saturated and have the function if necessary to increase the solvent power and to balance the elastomer compatibility.
• esters used can also be used for sustained Cold even before reaching the pour point due to high Viscosities the pumpability of the invention Maintain lubricant compositions.
• lubricant composition includes both Lubricating oil compositions, lubricating oils, greases as well as grease compositions, which as High performance lubricants, gear oils, engine oils, Hydraulic fluids, turbine oils, compressor oils, Pump oils, metalworking fluids, release agents, saw chain oils, Process oils and greases used can be.
• Viscosity index (VI) improvers As viscosity index (VI) improvers, anti-wear additives, Non-ferrous metal inhibitors, antioxidants, anti-corrosion additives and detergents can be the usual used for the lubricant compositions and below exemplified substances be used. A detailed compilation the particular materials used is the references [1] to [9] of the bibliography. Those listed in references [1] - [9] Substances, in particular the viscosity index (VI) improvers, Anti-wear additives, non-ferrous metal inhibitors, Antioxidants, anti-corrosion additives and detergents become by the reference of the references [1] - [9] included in the present disclosure.
• viscosity index or (VI) improvers refers to substances that improve the viscosity-temperature behavior be used. in this connection become olefin copolymers (OCP), Styrene Butadiene (SBR), Styrene Isoprene (SIP), Radial Isoprene (RIP), Polyisobutylenes (PIB), styrene esters (MSC) and polymetacrylates (PMA) used. These VI improvers will be dosed in different applications. But there is also mixed applications such as e.g. the mixture OCP / PMA.
• OCP olefin copolymers
• SBR Styrene Butadiene
• SIP Styrene Isoprene
• RIP Radial Isoprene
• PIB Polyisobutylenes
• MSC styrene esters
• PMA polymetacrylates
• anti-wear additives refers to substances, the with simultaneous smoothing effect the direct prevent or avoid metallic contact.
• non-ferrous metal inhibitors refers to substances which prevent or reduce corrosion and non-ferrous metal surfaces passivate. This dimercaptothiadiazole derivative, Benzotriazole and Tolytriazol used.
• antioxidants refers to substances that the Reduce the oxidation tendency of lubricants. in this connection be phenolic antioxidants as well as aminic Antioxidants used.
• anti-corrosion additives refers to substances, which prevent corrosion on metallic surfaces or decrease. These are sulfonates, Naphthenates and carboxylic acid derivatives used.
• detergents refers to substances that the Increase soil carrying capacity and cleaning power. These are calcium alkyl phenates, succinimide and overbased calcium sulfonate used.
• Detergents are added to give a higher cleaning effect and a better detergent behavior Contaminants (including water) in the lubricating oil circuit to reach.
• Water exclusion is usually at all Lubricant applications unavoidable. condensation forms with temperature-dependent dew point undershoots especially in mobile applications under free Weather conditions and working in waters.
• the inventive lubricant compositions draw characterized by the fact that small amounts of water their Do not adversely affect features.
• the lubricant composition of the invention meets the requirements of environmentally friendly lubricants (rapid biodegradability) and also allows for higher performance in the application than conventional mineral oil or ester-based (rapidly biodegradable) lubricants.
• the advantages of the lubricant composition according to the invention Among others the good miscibility and Compatibility with hydraulic oils based on mineral oil, no fresh oil losses due to flushing at the level of 2-4 times the capacity of the hydraulic circuit in the case of re-oiling due to incompatibilities, no hydrolysis instability in the presence of water, which in turn the use of water filters for the hydraulics Removal of smallest amounts of water makes it unnecessary as well as no aggressiveness towards elastomers / hoses as with esters. Furthermore, no special elastomers required for hoses / seals. Thereby An elastomer failure can be avoided, thereby lower losses / contamination of lubricating oil get into the environment due to leaks. Furthermore, be on the longer service life by higher Stability and lower risk of use with the same Care and maintenance of the invention Lubricant composition noted.
• the lubricant composition according to the invention has also better low temperature capability / pumpability even before reaching the pour point by consistent low viscosity also after exposure to a Cold influence above the pour point over longer periods Time up.
• Another advantage of the invention Lubricant composition shows in the better LucasabscheideSullivan at lower air intake and less foaming.
• the lubricant compositions according to the invention are preferably suitable for use at low Temperatures and especially preferred for cryogenic applications, in which a pumpability or a sufficiently high viscosity must be given.
• Example 1 Wt .-% Poly-alpha-olefin with 12 to 14 carbon atoms 70.45 polymethacrylate 8.00 ester 20.50 Non-ferrous metal inhibitors, antioxidants, anti-corrosion / anti-wear additive 1.05 100.00
• Example 2 Wt .-% Poly-alpha-olefin with 6 to 14 carbon atoms 74.80 polymethacrylate 0.10 ester 22.00 Non-ferrous metal inhibitors, antioxidants, anti-corrosion / anti-wear additive 3.10 100.00
• Example 3 Wt .-% Poly-alpha-olefin with 6 to 14 carbon atoms 74.90 ester 22.00 Non-ferrous metal inhibitors, antioxidants, anti-corrosion / anti-wear additive 3.10 100.00
• Example 4 Wt .-% Poly-alpha-olefin with 6 to 14 carbon atoms 76,00 PIB 15.00 ester 8.00 Non-ferrous metal inhibitors, antioxidants, anti-corrosion / anti-wear additive 1

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• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Organic Chemistry (AREA)
• Lubricants (AREA)

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Citations (4)

• 2004
  • 2004-03-29 DE DE200410015792 patent/DE102004015792A1/de not_active Withdrawn
• 2005
  • 2005-03-24 EP EP05102424A patent/EP1582578A3/fr not_active Ceased

Patent Citations (4)

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