EP0219751B1 - Elektroviskose Flüssigkeiten - Google Patents

Elektroviskose Flüssigkeiten Download PDF

Info

Publication number
EP0219751B1
EP0219751B1 EP86113763A EP86113763A EP0219751B1 EP 0219751 B1 EP0219751 B1 EP 0219751B1 EP 86113763 A EP86113763 A EP 86113763A EP 86113763 A EP86113763 A EP 86113763A EP 0219751 B1 EP0219751 B1 EP 0219751B1
Authority
EP
European Patent Office
Prior art keywords
electroviscous
weight
evf
dispersant
polysiloxanes
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.)
Expired - Lifetime
Application number
EP86113763A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0219751A2 (de
EP0219751A3 (en
Inventor
John Ir. Goossens
Günter Dr. Oppermann
Dr. Grape Wolfgang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bayer AG filed Critical Bayer AG
Priority to AT86113763T priority Critical patent/ATE83794T1/de
Publication of EP0219751A2 publication Critical patent/EP0219751A2/de
Publication of EP0219751A3 publication Critical patent/EP0219751A3/de
Application granted granted Critical
Publication of EP0219751B1 publication Critical patent/EP0219751B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
    • 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
    • C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
    • 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
    • C10M105/00—Lubricating compositions characterised by the base-material 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
    • C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
    • C10M107/50—Lubricating compositions characterised by the base-material being a macromolecular compound containing silicon
    • 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
    • C10M125/00—Lubricating compositions characterised by the additive being an inorganic material
    • C10M125/26—Compounds containing silicon or boron, e.g. silica, sand
    • 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
    • C10M155/00—Lubricating compositions characterised by the additive being a macromolecular compound containing atoms of elements not provided for in groups C10M143/00 - C10M153/00
    • C10M155/02—Monomer containing silicon
    • 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
    • C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
    • C10M171/001—Electrorheological fluids; smart fluids
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/087—Boron oxides, acids or salts
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/10—Compounds containing silicon
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/10—Compounds containing silicon
    • C10M2201/102—Silicates
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/10—Compounds containing silicon
    • C10M2201/105—Silica
    • 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
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/003—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions 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
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/02—Well-defined aliphatic compounds
    • 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
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/02—Well-defined aliphatic compounds
    • C10M2203/022—Well-defined aliphatic compounds saturated
    • 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
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/02—Well-defined aliphatic compounds
    • C10M2203/024—Well-defined aliphatic compounds unsaturated
    • 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
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/04—Well-defined cycloaliphatic compounds
    • 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
    • C10M2207/287—Partial esters
    • C10M2207/289—Partial esters containing free hydroxy groups
    • 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
    • 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
    • C10M2215/22—Heterocyclic nitrogen compounds
    • 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
    • C10M2215/22—Heterocyclic nitrogen compounds
    • C10M2215/221—Six-membered rings containing nitrogen and carbon only
    • 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
    • C10M2215/22—Heterocyclic nitrogen compounds
    • C10M2215/225—Heterocyclic nitrogen compounds the rings containing both nitrogen and oxygen
    • 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
    • C10M2215/22—Heterocyclic nitrogen compounds
    • C10M2215/225—Heterocyclic nitrogen compounds the rings containing both nitrogen and oxygen
    • C10M2215/226—Morpholines
    • 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
    • C10M2215/26—Amines
    • 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
    • C10M2215/30—Heterocyclic compounds
    • 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
    • C10M2229/02—Unspecified siloxanes; Silicones
    • 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
    • C10M2229/02—Unspecified siloxanes; Silicones
    • C10M2229/025—Unspecified siloxanes; Silicones 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
    • 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
    • C10M2229/0405—Siloxanes with specific structure 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
    • C10M2229/041—Siloxanes with specific structure containing aliphatic substituents
    • 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
    • C10M2229/041—Siloxanes with specific structure containing aliphatic substituents
    • C10M2229/0415—Siloxanes with specific structure containing aliphatic substituents 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
    • C10M2229/042—Siloxanes with specific structure containing aromatic substituents
    • 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
    • C10M2229/042—Siloxanes with specific structure containing aromatic substituents
    • C10M2229/0425—Siloxanes with specific structure containing aromatic substituents 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
    • C10M2229/043—Siloxanes with specific structure containing carbon-to-carbon double bonds
    • 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
    • C10M2229/043—Siloxanes with specific structure containing carbon-to-carbon double bonds
    • C10M2229/0435—Siloxanes with specific structure containing carbon-to-carbon double bonds 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
    • C10M2229/044—Siloxanes with specific structure containing silicon-to-hydrogen bonds
    • 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
    • C10M2229/044—Siloxanes with specific structure containing silicon-to-hydrogen bonds
    • C10M2229/0445—Siloxanes with specific structure containing silicon-to-hydrogen bonds 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
    • C10M2229/045—Siloxanes with specific structure containing silicon-to-hydroxyl bonds
    • 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
    • C10M2229/045—Siloxanes with specific structure containing silicon-to-hydroxyl bonds
    • C10M2229/0455—Siloxanes with specific structure containing silicon-to-hydroxyl bonds 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
    • C10M2229/046—Siloxanes with specific structure containing silicon-oxygen-carbon bonds
    • 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
    • C10M2229/046—Siloxanes with specific structure containing silicon-oxygen-carbon bonds
    • C10M2229/0465—Siloxanes with specific structure containing silicon-oxygen-carbon bonds 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
    • 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
    • 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
    • C10M2229/048—Siloxanes with specific structure containing carboxyl groups
    • 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
    • C10M2229/048—Siloxanes with specific structure containing carboxyl groups
    • C10M2229/0485—Siloxanes with specific structure containing carboxyl groups 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
    • C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
    • 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
    • C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
    • C10M2229/0505—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon 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
    • C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
    • C10M2229/051—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing halogen
    • 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
    • C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
    • C10M2229/051—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing halogen
    • C10M2229/0515—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing halogen 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
    • C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
    • C10M2229/052—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing nitrogen
    • 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
    • C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
    • C10M2229/052—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing nitrogen
    • C10M2229/0525—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing nitrogen 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
    • C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
    • C10M2229/053—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing sulfur
    • 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
    • C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
    • C10M2229/053—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing sulfur
    • C10M2229/0535—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing sulfur 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
    • C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
    • C10M2229/054—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing phosphorus
    • 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
    • C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
    • C10M2229/054—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing phosphorus
    • C10M2229/0545—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing phosphorus 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
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • 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
    • C10N2040/14—Electric or magnetic purposes
    • 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
    • C10N2040/14—Electric or magnetic purposes
    • C10N2040/16—Dielectric; Insulating oil or insulators
    • 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
    • C10N2040/14—Electric or magnetic purposes
    • C10N2040/17—Electric or magnetic purposes for electric contacts
    • 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
    • C10N2040/14—Electric or magnetic purposes
    • C10N2040/175—Pantographs, i.e. printing devices
    • 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
    • C10N2040/14—Electric or magnetic purposes
    • C10N2040/18—Electric or magnetic purposes in connection with recordings on magnetic tape or disc
    • 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
    • C10N2040/14—Electric or magnetic purposes
    • C10N2040/185—Magnetic fluids

Definitions

  • the invention is based on electroviscous suspensions which contain more than 25% by weight of an aluminum silicate with a water content of 1 to 25% by weight as the disperse phase and an electrically non-conductive hydrophobic liquid as the liquid phase, and also a dispersant.
  • Electroviscous liquids are dispersions of finely divided hydrophilic solids in hydrophobic, electrically non-conductive oils, the viscosity of which can be increased very quickly and reversibly from the liquid to the plastic or solid state under the influence of a sufficiently strong electric field. Both electrical DC fields and AC fields can be used to change the viscosity. The currents flowing through the EVF are extremely low. Therefore EVF can be used wherever the transmission of large forces should be controlled with the help of low electrical power, e.g. in couplings, hydraulic valves, shock absorbers, vibrators or devices for positioning and holding workpieces.
  • the requirements established by practice are that the EVF is liquid and chemically stable in a temperature range from approximately -50 ° C. to 150 ° C. and that it is sufficiently electroviscous at least in a temperature range from -30 ° C. to 110 ° C. Effect shows. It must also be ensured that the EVF remains stable over a long period of time, i.e. no phase separation takes place and in particular no sediment that is difficult to redisperse forms. If the EVF comes into contact with elastomeric materials, they should not be attacked or swollen by it.
  • the particle size of the ion exchange particles should be between 1 and 50 ⁇ m. As a result, the particles settle. To avoid settling of the relatively large particles it is common the density of the liquid phase is adapted to the density of the disperse phase. However, this density adjustment is temperature-dependent and therefore not practical.
  • US Pat. No. 3,367,872 describes aluminum oxide and aluminum silicates as the disperse phase, which may contain up to 95% by weight of silicon dioxide.
  • the unpublished EP-A 170,939 describes electroviscous liquids in which silica gels, which can still contain up to 20% by weight Al2O3, Na2O and CaO, are used as the disperse phase.
  • the invention has for its object to provide EVF with a significantly higher electrical reactivity, which is preferably maintained even at high temperatures and also have a low electrical conductivity.
  • this object is achieved according to the invention in that the Al / Si atomic ratio on the surface of the aluminum silicate is between 0.15 and 0.80, preferably between 0 , 2 and 0.75.
  • the Al / Si atomic ratio on the surface of the particles can differ considerably from the volume composition.
  • the present invention accordingly relates to EVF which contain more than 25% by weight of an aluminum silicate with a water content of 1 to 25% by weight as the disperse phase and an electrically non-conductive hydrophobic liquid as the liquid phase and a dispersant, which are characterized in that that the atomic ratio Al / Si on the surface of the aluminum silicate is between 0.15 and 0.80.
  • amino-functional or hydroxy-functional or acetoxy-functional or alkoxy-functional polysiloxanes with a molecular weight> 800 are used as dispersants.
  • the functional polysiloxanes are added at a concentration of 1 to 30% by weight, preferably 5 to 20% by weight, based on the water-containing aluminum silicate particles.
  • the amino groups are linked to the silicone base body either via an SiC or via an SiOC bond.
  • X represents a divalent hydrocarbon radical having 1 to 6, preferably 1 to 3, carbon atoms.
  • the aminomethyl and ⁇ -aminopropyl groups are particularly preferred as the amino-functional radical.
  • the divalent radical X can also contain H.
  • X-NHR can mean the grouping CH2-CH2-CH2-NH-CH2-CH2-NH2.
  • the amino-functional residue is an aminoalkoxy grouping. For reasons of stability to hydrolysis, a secondary SiOC linkage is preferred.
  • the 1-amino-2-propoxy radical is particularly suitable or the 1-amino-3-butoxy radical
  • silicon-functional polysiloxanes of the general formula can also be used can be used as dispersants. 10 ⁇ n ⁇ 1000.
  • Y represents a hydrolyzable group, preferably a hydroxyl, an alkoxy or carboxy group.
  • the aforementioned functional polysiloxanes which can be used as dispersants preferably contain 20 to 300 dimethylsiloxane units. In particular, these enable the production of dispersions with a high solids content and not too high a basic viscosity.
  • Aluminum silicate-containing EVFs surprisingly show significantly greater electrical reactivities than those with silica gel or aluminum oxide.
  • the EVF according to the invention which is produced with silicone oil, that it is perfectly compatible with elastomeric materials, in particular with rubber, is stable in settling and is physiologically indifferent (non-toxic). In addition, they are heat and cold resistant within an unusually wide temperature range and have only a low pressure dependence of the viscosity.
  • the electroviscous suspensions according to the invention have favorable dielectric values, which are only slightly dependent on the temperature and frequency, and have a high dielectric strength.
  • Another advantage is that the production of the EVF is relatively simple and therefore inexpensive and that commercially available products can be used as starting materials.
  • Aluminum silicates can be used to manufacture EVF. If necessary, the moisture content of the aluminum silicate can be increased or decreased.
  • the dispersion medium and part or all of the amount of dispersant are introduced and the aluminum silicate is stirred into the dispersion medium with constant stirring.
  • the aluminum silicate can be metered in quickly, while towards the end the aluminum silicate is slowly added with increasing viscosity. If only a part of the dispersant is initially introduced, the remaining amount of dispersant is simultaneously added during the addition of the aluminum silicate.
  • the manufacturing procedure is not critical for the final properties of the EVF.
  • the type of mixing is also not critical for the EVF's final properties. For example, simple stirring devices, ball mills or ultrasound can be used for the dispersion.
  • the dispersions can generally be prepared more quickly and become somewhat finer in the process.
  • the amount of dispersant required depends strongly on the specific surface of the aluminum silicate used. Approx. 1 to 4 mg / m2 are required as a guideline. However, the absolute amount required still depends on the type of aluminum silicate used and the dispersant.
  • the aluminum silicates used can be both amorphous and crystalline, such as precipitated aluminum silicate or zeolite.
  • the Al / Si atomic ratio on the surface of the aluminum silicate particles which is decisive for the size of the electroreactivity, was determined by means of ESCA (electron spectroscopy for chemical analysis).
  • the aluminum silicates need not be pure and can easily contain up to 20 wt .-% Fe2O3, TiO2, CaO, MgO, Na2O and K2O. Also up to a few wt .-% SO3 and Cl can still be present.
  • the surface examined by means of ESCA can have up to 25 at% C.
  • the loss on ignition ie the weight loss at 1000 ° C.
  • the loss on ignition generally ranges between 10 and 15% by weight in the case of the amorphous aluminum silicates.
  • An average of approx. 6% by weight of this is moisture, which is equivalent to the weight loss which is determined by drying at 105 ° C.
  • the specific surface area of the amorphous aluminum silicate, measured by the BET method is generally between 20 and 200 m2 / g.
  • the crystalline aluminum silicates can be present not only in a salt form, with the monovalent salts being preferred, but also in the H+ form.
  • the water content determined by drying at 500 ° C. is approximately 1 to 25% by weight, but should preferably be between approximately 5 and 15% by weight.
  • Silicone oils such as polydimethylsiloxanes and polymeric methylphenylsiloxanes are preferably used as the dispersion medium for the aluminum silicate particles.
  • Liquid hydrocarbons such as Paraffins, olefins and aromatic hydrocarbons are useful. Further e.g. fluorocarbons, polyoxyalkylenes or fluorinated polyoxyalkylenes can also be used.
  • the solidification point of the dispersion media is preferably set below -30 ° C, the boiling point above 150 ° C.
  • the viscosity of the oils is between 3 and 300 mm2 / s at room temperature. In general, the low-viscosity oils are preferred (3 to 20 mm2 / s), because this achieves a lower intrinsic viscosity of the EVF, so that strong viscosity changes can be achieved by means of the electro-viscous effect.
  • Surfactants which are soluble in the dispersion medium and are derived, for example, from amines, imidazolines, oxazolines, alcohols, glycol or sorbitol can be used as dispersants.
  • Polymers soluble in the dispersion medium can also be used. Suitable are, for example, polymers which contain 0.1 to 10% by weight of N and / or OH and 25 to 83% by weight of C4-C24 alkyl groups and have a molecular weight in the range from 5 ⁇ 103 to 106.
  • the containing N and OH Compounds in these polymers can be, for example, amine, amide, imide, nitrile, 5- to 6-membered N-containing heterocyclic rings or an alcohol and the C4-C24 alkyl groups are esters of acrylic or methacrylic acid.
  • Specific examples of the aforementioned N- and OH-containing compounds are NN-dimethylaminoethyl methacrylate, tertiary butyl acrylamide, maleimide, acrylonitrile, N-vinyl pyrolidone, vinyl pyridine and 2-hydroxyethyl methacrylate.
  • the abovementioned polymeric dispersants generally have the advantage over the low molecular weight surfactants that the dispersions prepared with them are more stable with regard to the sales behavior and the electroreactivity is less frequency-dependent.
  • the functional polysiloxanes according to the invention are particularly preferred dispersants for the production of EVF, the aluminum silicate being dispersed in a silicone oil. Their production is known in principle to the person skilled in the art.
  • the Cl-containing compound is made by. Cohydrolysis of desired amounts of ClCH2 (CH3) 2SiCl, ClCH2 (CH3) SiCl2 and (CH3) 2SiCl2. Of course, Br can also be used instead of Cl.
  • X is an alkyl radical having 2 to 6 carbon atoms
  • X is an alkyl radical having 2 to 6 carbon atoms
  • alternative routes are also familiar to the person skilled in the art.
  • X stands for an aminoalkoxy grouping
  • X stands for an aminoalkoxy grouping
  • silicon-functional oils which, for example, SiCl, SiOCH2H5, or contain SiH groups with aminoalkanols, optionally with the addition of suitable catalysts.
  • 1-Propanolamine is particularly suitable.
  • m (advantageously) can assume the value O.
  • An aminoalkoxy-functional polysiloxane of the formula is particularly preferred as the dispersant where n assumes a value between 15 and 100, preferably between 30 and 70.
  • the electrode area of the inner rotating cylinder with a diameter of 50 mm is approx. 78 cm2, the gap between the electrodes is 0.58 mm.
  • the shear stress can be set up to a maximum of 2330 s ⁇ 1.
  • the measuring range of the viscometer for the shear stress is a maximum of 750 Pa. Static and dynamic measurements are possible.
  • the EVF can be excited with both DC voltage and AC voltage.
  • a constant shear rate O ⁇ D ⁇ 2330 s ⁇ 1 is set and the dependency of the shear stress ⁇ on the electrical field strength E is measured effective current of 4 mA and a frequency of 50 Hz.
  • the measurements can be repeated with different shear rates D.
  • the values determined for E O and S generally vary in a range of approx. ⁇ 5% to ⁇ 20% around the mean.
  • the recipes marked with the letter E correspond to the examples according to the invention, while the other examples are to be regarded as prior art (basis for comparison).
  • Formulations 1 to 14 show the influence of the Al / Si atomic ratio on the surface of the different disperse phases. With the formulations 15, 16, 18, 20, 21, 23 and 24 it is clear that the good effect of the Al silicates according to the invention is also retained with other dispersants. Examples 20, 21 and 25 show that this also applies to other dispersion media.
  • Examples 6, 7, 9, 10, 16, 21, 25 show that the EVF according to the invention still have a good effect even at higher temperatures. Particularly noteworthy is the good effect at higher temperatures in the EVF which contain dispersants based on polysiloxane (Examples 7 and 25 compared to Examples 15 and 20).
  • Silicone oil 1 polydimethylsiloxane
  • Silicone oil 2 polymethylphenylsiloxane

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Lubricants (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Colloid Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Saccharide Compounds (AREA)
  • Liquid Crystal Substances (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Organic Insulating Materials (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
EP86113763A 1985-10-17 1986-10-04 Elektroviskose Flüssigkeiten Expired - Lifetime EP0219751B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86113763T ATE83794T1 (de) 1985-10-17 1986-10-04 Elektroviskose fluessigkeiten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3536934 1985-10-17
DE19853536934 DE3536934A1 (de) 1985-10-17 1985-10-17 Elektroviskose fluessigkeiten

Publications (3)

Publication Number Publication Date
EP0219751A2 EP0219751A2 (de) 1987-04-29
EP0219751A3 EP0219751A3 (en) 1989-10-11
EP0219751B1 true EP0219751B1 (de) 1992-12-23

Family

ID=6283752

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86113763A Expired - Lifetime EP0219751B1 (de) 1985-10-17 1986-10-04 Elektroviskose Flüssigkeiten

Country Status (14)

Country Link
US (1) US4702855A (ko)
EP (1) EP0219751B1 (ko)
JP (1) JPS6295397A (ko)
KR (1) KR940008392B1 (ko)
AT (1) ATE83794T1 (ko)
AU (1) AU579945B2 (ko)
BR (1) BR8605052A (ko)
CA (1) CA1280590C (ko)
DE (2) DE3536934A1 (ko)
DK (1) DK162725C (ko)
ES (1) ES2053427T3 (ko)
FI (1) FI82260C (ko)
NO (1) NO168537C (ko)
ZA (1) ZA867836B (ko)

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4744914A (en) * 1986-10-22 1988-05-17 Board Of Regents Of The University Of Michigan Electric field dependent fluids
US5143708A (en) * 1987-03-31 1992-09-01 Mizusawa Industrial Chemicals, Ltd. Tetracosahedral siliceous particles and process for preparation thereof
US4772407A (en) * 1987-12-02 1988-09-20 Lord Corporation Electrorheological fluids
JPH01266195A (ja) * 1988-04-19 1989-10-24 Bridgestone Corp 電気粘性液体
JPH02164438A (ja) * 1988-12-17 1990-06-25 Bridgestone Corp 電気粘性液体
EP0396237A1 (en) * 1989-03-20 1990-11-07 Imperial Chemical Industries Plc Electrorheological fluids
GB8929065D0 (en) * 1989-12-22 1990-02-28 Ici Plc Apparatus
EP0393830A1 (en) * 1989-03-20 1990-10-24 Imperial Chemical Industries Plc Electrorheological fluids
EP0393831A1 (en) * 1989-03-20 1990-10-24 Imperial Chemical Industries Plc Electrorheological fluids
US5075021A (en) * 1989-09-29 1991-12-24 Carlson J David Optically transparent electrorheological fluids
FR2652818B1 (fr) * 1989-10-09 1994-04-01 Rhone Poulenc Chimie Suspension de zeolite comprenant une resine silicone.
US5032308A (en) * 1989-11-07 1991-07-16 The Dow Chemical Company Layered mixed metal hydroxides in electrorheological fluids
EP0432601B1 (de) * 1989-12-14 1996-05-15 Bayer Ag Elektroviskose Flüssigkeiten auf der Basis dispergierter Polyether
US5496483A (en) * 1989-12-14 1996-03-05 Bayer Ag Electroviscous liquid based on dispersed modified polyethers
US4994198A (en) * 1990-01-29 1991-02-19 Dow Corning Corporation Electrorheological fluids based on silicone ionomer particles
US5071581A (en) * 1990-03-01 1991-12-10 The Dow Chemical Company Electrorheological fluids based on crown ethers and quaternary amines
US5032307A (en) * 1990-04-11 1991-07-16 Lord Corporation Surfactant-based electrorheological materials
US5252249A (en) 1990-04-26 1993-10-12 Bridgestone Corporation Powder and electrorheological fluid
JP2789503B2 (ja) * 1990-07-17 1998-08-20 信越化学工業株式会社 電気粘性流体組成物
DE4026881A1 (de) * 1990-08-25 1992-02-27 Bayer Ag Elektroviskose fluessigkeiten auf der basis von polymerdispersionen mit elektrolythaltiger disperser phase
US5330704A (en) * 1991-02-04 1994-07-19 Alliedsignal Inc. Method for producing aluminum powder alloy products having lower gas contents
DE4119670A1 (de) * 1991-06-14 1992-12-17 Bayer Ag Elektroviskose fluessigkeit auf basis von polyetheracrylaten als disperse phase
US5364565A (en) * 1991-08-30 1994-11-15 Ford Motor Company Electroviscoelastic gel-like solids
DE4131142A1 (de) * 1991-09-19 1993-03-25 Bayer Ag Elektroviskose fluessigkeit
DE69218915D1 (de) * 1991-10-10 1997-05-15 Lubrizol Corp Polyaniline enthaltende elektrorheologische Flüssigkeiten
US5595680A (en) * 1991-10-10 1997-01-21 The Lubrizol Corporation Electrorheological fluids containing polyanilines
US5800731A (en) * 1991-11-28 1998-09-01 Rwe-Dea Aktiengesellschaft Fur Mineraloel Und Chemie Homogeneous electroviscous fluids using aluminum compounds
DE69225340T2 (de) * 1991-12-27 1998-08-27 Nippon Oil Co Ltd Elektrorheologische Flüssigkeit mit karbonhaltigen Teilchen in anisotroper Form
US5294360A (en) * 1992-01-31 1994-03-15 Lord Corporation Atomically polarizable electrorheological material
US5320770A (en) * 1992-04-27 1994-06-14 Dow Corning Corporation Electrorheological (ER) fluid based on amino acid containing metal polyoxo-salts
US5702630A (en) * 1992-07-16 1997-12-30 Nippon Oil Company, Ltd. Fluid having both magnetic and electrorheological characteristics
DE69321247T2 (de) * 1992-10-30 1999-02-25 Lord Corp Magnetorheologische thixotrope materialien
US5536426A (en) * 1993-05-21 1996-07-16 Nippon Oil Company, Ltd. Electrorheological fluid containing carbonaceous particles
JPH0790290A (ja) * 1993-09-21 1995-04-04 Nippon Oil Co Ltd 磁性と電気粘性効果とを同時に有する流体用分散粒子及びそれを用いた流体。
FR2712600B1 (fr) * 1993-11-18 1996-01-12 Rhone Poulenc Chimie Fluide électrorhéologique anhydre.
DE69512328T2 (de) * 1994-01-31 2000-01-20 Tonen Corp Elektrovisköses fluid
US5552076A (en) * 1994-06-08 1996-09-03 The Regents Of The University Of Michigan Anhydrous amorphous ceramics as the particulate phase in electrorheological fluids
US5607996A (en) * 1994-10-05 1997-03-04 Ford Motor Company Electrorheological elastomers useful as variable stiffness articles
US5693367A (en) * 1995-03-24 1997-12-02 Bridgestone Corporation Process for producing a powder material for an electro-rheological fluid
CN1037911C (zh) * 1995-12-01 1998-04-01 清华大学 云母系列电流变液
JPH09255982A (ja) * 1996-03-26 1997-09-30 Nippon Oil Co Ltd 電気粘性流体
JPH1081889A (ja) 1996-09-06 1998-03-31 Bridgestone Corp 電気粘性流体用粉体
DE19717693A1 (de) 1997-04-26 1998-10-29 Schenck Ag Carl Stell- und Dämpfervorrichtung
DE19735898A1 (de) 1997-08-19 1999-02-25 Schenck Ag Carl Ventil und Stoßdämpfer auf Basis elektrorheologischer Flüssigkeiten
DE19735897A1 (de) * 1997-08-19 1999-02-25 Bayer Ag Kupplung
US6177031B1 (en) * 1998-05-26 2001-01-23 General Electric Company Thixotropic dielectric fluid for capacitors
US6352651B1 (en) 1998-06-08 2002-03-05 Bridgestone Corporation Electrorheological fluid
DE10115302A1 (de) 2001-03-28 2002-10-02 Matthias Hahn Verfahren zum Entfernen eines Ölteppichs oder dergleichen von einer Wasseroberfläche und Vorrichtung dazu
DE102005040157A1 (de) * 2005-08-25 2007-03-01 Degussa Ag Paste aus nanoskaligem Pulver und Dispergiermittel
DE102006031738A1 (de) * 2006-07-10 2008-01-17 Kastriot Merlaku Brems-System für Fahrzeuge oder Maschinen aller Art
KR20120055351A (ko) * 2010-11-23 2012-05-31 삼성전자주식회사 뉴토니안 유체 특성을 갖는 전기유변유체
DE102011018177A1 (de) 2011-04-19 2012-10-25 Raino Petricevic Paste und deren Verwendung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3047507A (en) * 1960-04-04 1962-07-31 Wefco Inc Field responsive force transmitting compositions
US3367872A (en) * 1967-02-15 1968-02-06 Union Oil Co Electroviscous fluid composition
JPS5832197B2 (ja) * 1976-07-31 1983-07-11 川崎重工業株式会社 電気粘性流体
DE3427499A1 (de) * 1984-07-26 1986-02-13 Bayer Ag, 5090 Leverkusen Elektroviskose fluessigkeiten

Also Published As

Publication number Publication date
ES2053427T3 (es) 1994-08-01
EP0219751A2 (de) 1987-04-29
EP0219751A3 (en) 1989-10-11
BR8605052A (pt) 1987-07-14
DK162725B (da) 1991-12-02
DE3536934A1 (de) 1987-04-23
KR940008392B1 (ko) 1994-09-14
FI864166A0 (fi) 1986-10-15
KR870003817A (ko) 1987-05-04
DK495386A (da) 1987-04-18
FI82260B (fi) 1990-10-31
ATE83794T1 (de) 1993-01-15
DK495386D0 (da) 1986-10-16
NO168537B (no) 1991-11-25
NO863932D0 (no) 1986-10-02
NO863932L (no) 1987-04-21
AU6395486A (en) 1987-04-30
NO168537C (no) 1992-03-04
DE3687337D1 (de) 1993-02-04
ZA867836B (en) 1987-06-24
FI864166A (fi) 1987-04-18
DK162725C (da) 1992-04-21
CA1280590C (en) 1991-02-26
US4702855A (en) 1987-10-27
AU579945B2 (en) 1988-12-15
FI82260C (fi) 1991-02-11
JPS6295397A (ja) 1987-05-01

Similar Documents

Publication Publication Date Title
EP0219751B1 (de) Elektroviskose Flüssigkeiten
EP0170939B1 (de) Elektroviskose Flüssigkeiten
EP0201827B1 (de) Elektroviskose Flüssigkeiten
DE3636473B4 (de) Voraktiviertes organophiles Tongeliermittel für Schmierfette und dessen Verwendung
DE3874825T2 (de) Vernetzte organopolysiloxane und darauf basierende emulsionen.
DE3885251T2 (de) Bohrflüssigkeit auf Ölbasis und Geliermittel dafür.
DE69935843T2 (de) Entschäumerzusammensetzungen für Bohrlochbehandlungsflüssigkeiten
CH663029A5 (de) Fluessigkeitsverluste vermindernde additive fuer bohrlochbearbeitungsfluessigkeiten.
EP0023533B1 (de) Mittel zum Entschäumen flüssiger Medien
EP0310903B1 (de) Verwendung von Organosilicium-Verbindungen zum Verdicken von Ölen
DE4026881A1 (de) Elektroviskose fluessigkeiten auf der basis von polymerdispersionen mit elektrolythaltiger disperser phase
EP0432601B1 (de) Elektroviskose Flüssigkeiten auf der Basis dispergierter Polyether
DE3124675A1 (de) Emulsionsbrecher und verfahren zum brechen von emulsionen
WO2007118328A1 (en) Methods of preparing hydrocarbon, water and organophilic clay emulsions and compositions thereof
DE69102660T2 (de) Elektrorheologische Flüssigkeiten auf der Basis von Silicon-ionomer-Partikeln.
DE1694345A1 (de) Fettartige Siliconmasse
DE4119670A1 (de) Elektroviskose fluessigkeit auf basis von polyetheracrylaten als disperse phase
DE3912888C2 (ko)
DE69916548T2 (de) Schwingungsdämpfende Zusammensetzung
DE2352548C3 (de) Versatzflüssigkeiten
DE69107406T2 (de) Elektroviskose-Flüssigkeit.
DE69200404T2 (de) Verfahren zum Kontrollieren des elektrorheologischen Verhaltens einer elektrorheologischen Flüssigkeit.
DE69819994T2 (de) Polyfluoroalkyl-Siloxane
DE1257332B (de) Schmierfett, enthaltend einen harzueberzogenen kolloidalen Ton
EP0524528B1 (de) Elektrorheologische Flüssigkeit

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19861009

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE ES FR GB IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

RHK1 Main classification (correction)

Ipc: C10M171/00

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE ES FR GB IT LI LU NL SE

17Q First examination report despatched

Effective date: 19901214

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 83794

Country of ref document: AT

Date of ref document: 19930115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3687337

Country of ref document: DE

Date of ref document: 19930204

ITF It: translation for a ep patent filed

Owner name: SOCIETA' ITALIANA BREVETTI S.P.A.

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19930329

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19931027

Year of fee payment: 8

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19931031

26N No opposition filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2053427

Country of ref document: ES

Kind code of ref document: T3

ITTA It: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19941031

EAL Se: european patent in force in sweden

Ref document number: 86113763.6

BERE Be: lapsed

Owner name: BAYER A.G.

Effective date: 19941031

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19960912

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19960917

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19960923

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19960925

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19961003

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19961016

Year of fee payment: 11

Ref country code: ES

Payment date: 19961016

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19961031

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971004

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971004

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971005

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19971006

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971031

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19971031

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980501

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19971004

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19980501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980701

EUG Se: european patent has lapsed

Ref document number: 86113763.6

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20001204

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051004