EP4532642A1 - Neue niedrigviskose funktionelle flüssigkeiten - Google Patents
Neue niedrigviskose funktionelle flüssigkeitenInfo
- Publication number
- EP4532642A1 EP4532642A1 EP23728357.7A EP23728357A EP4532642A1 EP 4532642 A1 EP4532642 A1 EP 4532642A1 EP 23728357 A EP23728357 A EP 23728357A EP 4532642 A1 EP4532642 A1 EP 4532642A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- particularly preferably
- component
- components
- composition according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- 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
- C10M111/02—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 non-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
- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
- C10M2207/0406—Ethers; Acetals; Ortho-esters; Ortho-carbonates 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
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
- C10M2209/1045—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only 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
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/108—Polyethers, i.e. containing di- or higher polyoxyalkylene groups etherified
-
- 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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
-
- 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
- C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
- C10M2227/04—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions having a silicon-to-carbon bond, e.g. organo-silanes
- C10M2227/045—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions having a silicon-to-carbon bond, e.g. organo-silanes 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
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/047—Siloxanes with specific structure containing alkylene oxide groups
- C10M2229/0475—Siloxanes with specific structure containing alkylene oxide groups used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/02—Pour-point; Viscosity index
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/08—Hydraulic fluids, e.g. brake-fluids
Definitions
- brake fluids have a high dry and wet boiling point and a low low-temperature viscosity, which makes them particularly suitable for modern brake systems.
- At least one silicon ester-based brake fluid is freely available on the market, which has a silicon content of 8% by weight, i.e. it is essentially a pure reaction product of an organic silicon compound with alkoxyglycols.
- Such liquids based on silicone esters and their use as hydraulic oils are known from DE-OS 2147853.
- the silicone esters are used in the examples either in pure form or in a mixture with boric acid esters and alkoxyglycols. Mixtures of silicone esters with alkoxyglycols are not described.
- the object of the present invention was to develop brake fluids that retain the advantage of high dry and wet boiling points of silicon ester-based compounds and reduce the viscosity at least to the low level required by DOT 5.1, preferably to a kinematic viscosity at -40 ° C of not more than 750 cSt (mm 2 /s), as required in ISO 4925, Class 6.
- R 11 Ci- to C 4 -alkyl especially methyl or ethyl, particularly preferably methyl and R 12 Ci- to C 4 -alkyl, especially methyl or n-butyl, particularly preferably methyl, in which the proportion of
- (E) is 40 to 55% by weight, preferably 43 to 55, particularly preferably 45 to 53, very particularly preferably 47 to 52% by weight,
- (D) is more than 0 to 5% by weight, with the proviso that the sum of all components (A) to (E) always amounts to 100% by weight, where in components (A) to (C) and (E)
- the functional liquids according to the invention still have a low viscosity with high values for dry and wet boiling points, with which the above requirements are met be fulfilled. These properties are achieved through a balanced and coordinated selection of components that have high dry and wet boiling points and those that have a low viscosity.
- the degree of alkoxylation of the glycols or alkoxyglycols is selected so that these compounds meet a compromise between a sufficiently high boiling point and a sufficiently low viscosity.
- H 3 CO-[-CH2-CH 2 -O-]nH where n is an integer from 2 to 5, preferably 2 to 4 and particularly preferably 3 or 4 and for at least 30% by weight of all components of the formula (I) n 3 applies.
- R 1 C 2 - to C4 alkyl preferably ethyl, n-propyl, n-butyl, particularly preferably ethyl and n-butyl and very particularly preferably n-butyl
- These can be one to five, preferably one to four, particularly preferably one to three, very particularly preferably one or two and in particular one alkoxyglycol.
- the proportion of triethylene glycol monoalkyl ether in component (B) is at least 65% by weight, preferably at least 70, particularly preferably at least 75 and very particularly preferably at least 80% by weight.
- component (C) are diethylene glycol and triethylene glycol, particularly preferably at least 85, very particularly preferably at least 90 and in particular at least 95% by weight.
- component (C) contains at least 60% by weight of diethylene glycol, preferably at least 75%, very particularly preferably at least 85% and in particular at least 90% by weight.
- the brake fluids according to the invention contain at least one additive as component (D), selected from the group consisting of corrosion inhibitors, amines, stabilizers, defoamers and lubricants.
- Component (D) which may be present in the functional fluid composition, is an additive package, which preferably comprises one or more additives with a corrosion-inhibiting effect.
- this is at least one additive with a corrosion-inhibiting effect selected from alkylamine ethoxylates and alkanolamines, preferably selected from the group consisting of alkylamine ethoxylates and trialkanolamines.
- Suitable examples of individual alkylamine molecules that are capable of ethoxylation and are also suitable as surfactants for the present invention are n-propylamine, isopropylamine, n-butylamine, isobutylamine, sec-butylamine, tert-butylamine, n-pentylamine, tert -Pentylamine, n-hexylamine, n-heptylamine, n-octylamine, 2-ethylhexylamine, n-nonylamine, n-decylamine, 2-propylheptylamine, n-undecylamine, n-dodecylamine, n-tridecylamine, isotridecylamine, n-tetradecylamine, n -Pentadecylamine, n-hexadecylamine, n-heptadecylamine,
- alkyl radicals can come entirely from petrochemical production, for example technical Cs-Cis-alkyl mixtures, 2-ethylhexyl or 2-propylheptyl, or can be based entirely or partially on renewable raw materials, for example fatty amines such as stearyl, as the basis for the alkylamine ethoxylates can be amines, oleylamines or Tallowamines are used.
- a typical suitable alkylamine ethoxylate is octylamine (caprylamine) with 2 EO units, which is commercially available.
- component (D) of the present functional liquid composition can comprise at least one further additive with a corrosion-inhibiting effect.
- Common additives with corrosion-inhibiting properties include fatty acids such as lauric, palmitic, stearic or oleic acid; Esters of phosphonic acid or phosphoric acid aliphatic alcohols; phosphites and phosphates such as ethyl phosphate, dimethyl phosphate, isopropyl phosphate, n-butyl phosphate, triphenyl phosphite and diisopropyl phosphite; Reaction products of phosphorus pentoxide with alkoxyglycols, as described above as components (A) or (B), heterocyclic nitrogen-containing organic compounds such as benzotriazole, tolutriazole, 1,2,4-triazole, benzoimidazole, purine, adenine and derivatives of such heterocyclic organic compounds; Alkylamines such as mono- and di-(C4- to C2o-alkyl)amines, for example n-butylamine, n-he
- additives with a corrosion-inhibiting effect can be included in the additive package of component (D), for example stabilizers such as pH stabilizers, antioxidants such as phenothiazine and phenolic compounds, for example hydroxyanisole and bisphenol A, defoamers and dyes.
- stabilizers such as pH stabilizers
- antioxidants such as phenothiazine and phenolic compounds, for example hydroxyanisole and bisphenol A
- defoamers and dyes for example stabilizers such as pH stabilizers, antioxidants such as phenothiazine and phenolic compounds, for example hydroxyanisole and bisphenol A, defoamers and dyes.
- the mixture of fatty acids preferably comprises a mixture of two molecules of ricinoleic acid with a fatty acid that does not carry a hydroxyl group, preferably selected from the group consisting of oleic acid, linoleic acid, palmitic acid and stearic acid.
- the structure of the alkoxylate preferably comprises a saturated or unsaturated Cs to C22 fatty monocarboxylic acid or at least one saturated or unsaturated Cs to C22 fatty monocarboxylic acid unit in the molecule which is esterified with one or more oxyalkylenes with the free carboxylic acid function, if such a free one Carboxylic acid function is present in the molecule and carries a hydroxyl group located on the fatty acid side chain of the alkoxylate etherified by one or more oxyalkylene units.
- the functional liquids according to the invention additionally or independently, preferably additionally, contain at least one compound selected from the group consisting of alkylamine ethoxylates with a linear Cs to Cw alkyl chain and 2 to 6 EO units, mono-, di- and Triisopropanolamine.
- R 11 Ci- to C 4 alkyl, especially methyl or ethyl, particularly preferably methyl and
- the brake fluids according to the invention contain at least one organic silicon compound (E), preferably one to four, particularly preferably one to three, very particularly preferably one or two and in particular one.
- organic silicon compound (E) preferably one to four, particularly preferably one to three, very particularly preferably one or two and in particular one.
- the radicals R 11 can be C1 to C4 alkyl, preferably methyl, ethyl or n-butyl, particularly preferably methyl or ethyl and very particularly preferably methyl.
- the x radicals R 11 can be independently the same or different, preferably they are the same.
- the number x of radicals R 11 is from 1 to 3, preferably 1 or 2 and particularly preferably 2.
- the substructures H-[-O-CH2-CH2-]zOR 12 are alkylene glycol monoalkyl ethers, as also described above for the compounds (A) and (B), preferably R 12 is Ci-bis C4 alkyl, preferably methyl, ethyl or n-butyl, particularly preferably methyl or n-butyl and very particularly preferably methyl.
- the running index z is a positive integer from 2 to 4, preferably 3 or 4 and particularly preferably 3.
- the substructures H-[-O-CH2-CH2-]zOR 12 are selected from the group consisting of diethylene glycol monomethyl ether, triethylene glycol monomethyl ether, tetraethylene glycol monomethyl ether, diethylene glycol monoethyl ether, triethylene glycol monoethyl ether, tetraethylene glycol monoethyl ether, diethylene glycol mono n-.
- butyl ether, triethylene glycol mono n-butyl ether and tetraethylene glycol mono n-butyl ether preferred are triethylene glycol monomethyl ether, tetraethylene glycol monomethyl ether, triethylene glycol mono n-butyl ether and tetraethylene glycol mono n-butyl ether, particularly preferred are triethylene glycol monomethyl ether and triethylene glycol mono n-butyl ether.
- composition of the functional fluids according to the invention preferably the brake fluids according to the invention, is as follows:
- Component (E) 40 to 55% by weight, preferably 43 to 55, particularly preferably 45 to 53, very particularly preferably 47 to 52% by weight,
- This embodiment is particularly preferred if the presence of polynuclear organic silicon compounds (see below) is desired.
- This change in the compositions can consist, on the one hand, in the replacement of the substructures H-[-O-CH2-CH2-]ZOR 12 in component (E) by the alkylene glycol monoalkyl ethers (A) and (B), so that the alkylene glycol monoalkyl ethers (A) and (B) are incorporated into component (E) and free alkylene glycol monoalkyl ether H-[-O-CH2-CH2-]zOR 12 is formed in the composition.
- trinuclear silicon compounds are as follows: where the variables are defined as above.
- x must be at least 2.
- the end point of this change is the composition of a mixture of all components (A) to (E), which is established in thermodynamic equilibrium starting from the initial composition.
- the composition of the reaction mixture lies between the initial composition and the composition in thermodynamic equilibrium.
- the mixtures according to the invention can be used as functional fluids, for example as hydraulic fluids or in particular as brake fluids.
- the pure silicone ester has slightly higher values for ERBP and WERBP compared to the pure boric acid ester, but has a significantly higher low-temperature viscosity (entries 1 vs. 4).
- Additive mixture 2.5% corrosion inhibitor, 2.5% and 10.0% lubricant as described in WO 2015/052234, composition FFC4, anionic wetting aid 0.25%, aminic antioxidant as heat stabilizer 1.5% dissolved in 83, 25% MTG
- the comparative example RD3 has a similar content of component 1 and MTG as Example 2 according to the invention, but contains 24% by weight of BTG, whereas in Example 2 according to the invention the content of BTG is only 10% by weight, but there is also a content of MTeG of 10% by weight % having.
- the comparative example RD8 has a similar content of component 1 and MTG as Example 3 according to the invention, but contains only 2% by weight of BTG, whereas in Example 2 according to the invention the content of BTG is 10% by weight.
- Example 3 has a wet boiling point (WERBP) that is 4 ° C higher than the comparative example RD8.
- WERBP wet boiling point
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP22176522.5A EP4286497A1 (de) | 2022-05-31 | 2022-05-31 | Neue niedrigviskose funktionelle flüssigkeiten |
| PCT/EP2023/063884 WO2023232577A1 (de) | 2022-05-31 | 2023-05-24 | Neue niedrigviskose funktionelle flüssigkeiten |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4532642A1 true EP4532642A1 (de) | 2025-04-09 |
| EP4532642B1 EP4532642B1 (de) | 2026-04-22 |
Family
ID=81854816
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22176522.5A Withdrawn EP4286497A1 (de) | 2022-05-31 | 2022-05-31 | Neue niedrigviskose funktionelle flüssigkeiten |
| EP23728357.7A Active EP4532642B1 (de) | 2022-05-31 | 2023-05-24 | Neue niedrigviskose funktionelle flüssigkeiten |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22176522.5A Withdrawn EP4286497A1 (de) | 2022-05-31 | 2022-05-31 | Neue niedrigviskose funktionelle flüssigkeiten |
Country Status (7)
| Country | Link |
|---|---|
| EP (2) | EP4286497A1 (de) |
| JP (1) | JP2025517526A (de) |
| KR (1) | KR20250019036A (de) |
| CN (1) | CN119301221A (de) |
| CA (1) | CA3258068A1 (de) |
| MX (1) | MX2024014860A (de) |
| WO (1) | WO2023232577A1 (de) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA975347A (en) * | 1970-09-25 | 1975-09-30 | David A. Csejka | Alkyl (polyalkoxy) silanes as components in hydraulic fluids |
| US4016088A (en) * | 1973-09-25 | 1977-04-05 | Castrol Limited | Hydraulic fluids |
| US4141851A (en) * | 1975-11-21 | 1979-02-27 | Castrol Limited | Silane derivatives |
| CN105637075B (zh) | 2013-10-10 | 2019-01-04 | 巴斯夫欧洲公司 | 新的功能性流体组合物 |
-
2022
- 2022-05-31 EP EP22176522.5A patent/EP4286497A1/de not_active Withdrawn
-
2023
- 2023-05-24 WO PCT/EP2023/063884 patent/WO2023232577A1/de not_active Ceased
- 2023-05-24 EP EP23728357.7A patent/EP4532642B1/de active Active
- 2023-05-24 CN CN202380043974.5A patent/CN119301221A/zh active Pending
- 2023-05-24 CA CA3258068A patent/CA3258068A1/en active Pending
- 2023-05-24 KR KR1020247039568A patent/KR20250019036A/ko active Pending
- 2023-05-24 JP JP2024569747A patent/JP2025517526A/ja active Pending
-
2024
- 2024-11-29 MX MX2024014860A patent/MX2024014860A/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| KR20250019036A (ko) | 2025-02-07 |
| EP4286497A1 (de) | 2023-12-06 |
| CN119301221A (zh) | 2025-01-10 |
| WO2023232577A1 (de) | 2023-12-07 |
| CA3258068A1 (en) | 2025-04-09 |
| JP2025517526A (ja) | 2025-06-05 |
| EP4532642B1 (de) | 2026-04-22 |
| MX2024014860A (es) | 2025-01-09 |
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