EP1257624B1 - Composition de laminage a chaud et a temperature intermediaire de metaux non ferreux, d'alliages de cuivre, et de cuivre hydrosoluble - Google Patents

Composition de laminage a chaud et a temperature intermediaire de metaux non ferreux, d'alliages de cuivre, et de cuivre hydrosoluble Download PDF

Info

Publication number
EP1257624B1
EP1257624B1 EP01905750A EP01905750A EP1257624B1 EP 1257624 B1 EP1257624 B1 EP 1257624B1 EP 01905750 A EP01905750 A EP 01905750A EP 01905750 A EP01905750 A EP 01905750A EP 1257624 B1 EP1257624 B1 EP 1257624B1
Authority
EP
European Patent Office
Prior art keywords
water
oil composition
composition according
emulsion
soluble oil
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
EP01905750A
Other languages
German (de)
English (en)
Other versions
EP1257624A1 (fr
Inventor
Francis Prince
Jean-Yves Claire
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.)
Mobil Oil Francaise SA
Original Assignee
Mobil Oil Francaise SA
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 Mobil Oil Francaise SA filed Critical Mobil Oil Francaise SA
Priority to EP01905750A priority Critical patent/EP1257624B1/fr
Publication of EP1257624A1 publication Critical patent/EP1257624A1/fr
Application granted granted Critical
Publication of EP1257624B1 publication Critical patent/EP1257624B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M173/00Lubricating compositions containing more than 10% water
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M141/00Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
    • C10M141/06Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic nitrogen-containing compound
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M141/00Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
    • C10M141/12Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic compound containing atoms of elements not provided for in groups C10M141/02 - C10M141/10
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/10Compounds containing silicon
    • C10M2201/105Silica
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/106Naphthenic fractions
    • C10M2203/1065Naphthenic fractions used as base material
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02Hydroxy compounds
    • C10M2207/023Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
    • C10M2207/026Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10Carboxylix acids; Neutral salts thereof
    • C10M2207/12Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C10M2207/126Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28Esters
    • C10M2207/283Esters of polyhydroxy compounds
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28Esters
    • C10M2207/287Partial esters
    • C10M2207/289Partial esters containing free hydroxy groups
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/104Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/04Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2215/042Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/22Heterocyclic nitrogen compounds
    • C10M2215/223Five-membered rings containing nitrogen and carbon only
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2223/00Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04Phosphate esters
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2229/00Organic 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
    • C10M2229/02Unspecified siloxanes; Silicones
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/02Pour-point; Viscosity index
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/12Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/24Emulsion properties
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/20Metal working
    • C10N2040/24Metal working without essential removal of material, e.g. forming, gorging, drawing, pressing, stamping, rolling or extruding; Punching metal

Definitions

  • the present invention relates to a water-soluble copper, copper alloys and non-ferrous metals intermediate cold and hot rolling composition and to a process for intermediate cold or hot rolling copper, copper alloys and non-ferrous metals.
  • the copper, copper alloys and non-ferrous metals rolling industry expresses the need to maximize the efficiency of their rolled metal manufacturing process. In general terms, this means that there is a wish to operate at higher rolling speeds and to produce more marketable products per operating shift. Additionally, there is also a wish to minimize the number of passes through the mill taken to achieve a given level of reduction. Both these routes require that quality and surface finish be not compromised.
  • the invention thus provides an oil composition for rolling mills that enables to prepare emulsions which affords the following customer benefits:
  • the invention is effective on any type of rolling, be it reversible or not, on breakdown, intermediate and finishing mills.
  • the invention exhibits high reduction and rolling capabilities while providing an excellent strip surface finish when rolling at high speed.
  • the invention provides a water-soluble copper, copper alloys and non-ferrous metals rolling oil composition
  • a water-soluble copper, copper alloys and non-ferrous metals rolling oil composition comprising a base stock oil and, based on the total weight of the composition
  • intermediate cold is herein meant that the temperature is the ambiant temperature for the copper and copper alloy ingot.
  • hot rolling is herein meant that the temperature is around 750°C for the copper and copper alloy ingot.
  • the oil composition further comprises, based on the total weight of the composition, from 0,1 to 20% of a mixture of ethoxylated alcohols (having from 5 to 15 carbons atoms and preferably from 12 to 15 carbon atoms).
  • a mixture of ethoxylated alcohols sold by ICI under tradenames Synperonic® A7 and Hypermer® A60 can be used, the Synperonic® A7:Hypermer® A60 weight ratio preferably ranging from 1:10 to 10:1.
  • the invention further provides a process for preparing the oil composition.
  • the invention further provides an emulsion containing the oil composition and a process for preparing this emulsion.
  • the invention provides the use of the oil composition of the invention to prepare emulsions intended to be used in a copper, copper alloys and non-ferrous metals hot or cold intermediate rolling process.
  • the invention also provides a process for hot roiling copper, copper alloys and non-ferrous metals sheets, comprising applying an effective amount of the emulsion of the invention.
  • the invention provides the use of the emulsion in a hot rolling process or in an intermediate rolling process.
  • Figure 1 shows the curves obtained when plotting the copper loss in weight (ppm) against the duration of the test in hours, when using an emulsion of the prior art and an emulsion of the invention.
  • Figure 2 is a graph showing the applied rolling force in ton/meter versus the number of passes, when using an emulsion of the prior art and an emulsion of the invention.
  • the oil compositions of the invention are neat oil concentrates generally intended to be diluted in water to give oil-in-water emulsions.
  • the base stock oil is any oil typically used in the field of intermediate cold or hot rolling. It can be paraffinic or naphthenic.
  • Paraffinic base oils are made from crude oils that have relatively high alkane contents (high paraffin and isoparaffin contents). Typical crudes are from the Middle East, North Sea, US mid-continent. The manufacturing process requires aromatics removal (usually by solvent extraction) and dewaxing. Paraffinic base oils are characterized by their good viscosity/temperature characteristics, i.e. high viscosity index, adequate low-temperature properties and good stability. They are often referred to as solvent neutrals, where solvent means that the base oil has been solvent-refined and neutral means that the oil is of neutral pH. An alternative designation is high viscosity index (HVI) base oil. They are available in full range of viscosities, from light spindle oils tc viscous brightstock.
  • HVI high viscosity index
  • Naphthenic base oils have a naturally low pour point, are wax-free and have excellent solvent power. Solvent extraction and hydrotreatment can be used to reduce the polycyclic aromatic content.
  • a preferred base oil is an hydrotreated paraffinic neutral.
  • the base oil typically has a viscosity from 10 to 15C cSt at 40°C, preferably from 20 to 50 cSt at 40°C.
  • the fatty acid of the monoester has from 16 to 20 carbon atoms and preferably is oleic acid.
  • the polyol of the monoester is preferably glycerol.
  • the fatty acid of the tetraester has from 16 to 20 carbon atoms and preferably is oleic acid.
  • the azole derivative is generally selected from the group consisting of an aryltriazole, an arylimidazole and an arylthiazole.
  • Examples of an aryltriazole include benzotriazole, toluol triazole and toluyl triazole.
  • Examples of an arylimidazole include benzimidazole and 2-(5-aminopentyl) benzimidazole.
  • benzothiazole may be used.
  • Preferred azole is toluol triazole.
  • the oil composition may comprise classical additives, such as surfactants, coupling agents or cosurfactants, friction reducing agents or lubricity agents, corrosion inhibitors or anti-oxidants, extreme-pressure and anti-wear agents, bactericides and fungicides, anti-foaming agents, anti-rust agents.
  • classical additives such as surfactants, coupling agents or cosurfactants, friction reducing agents or lubricity agents, corrosion inhibitors or anti-oxidants, extreme-pressure and anti-wear agents, bactericides and fungicides, anti-foaming agents, anti-rust agents.
  • oil composition and therefore also the emulsion, do not comprise nonyl-phenol surfactants, which are considered to raise environment problems.
  • anti-foaming agents are silicone based, especially polydimethylsiloxane.
  • corrosion inhibitors are hindered phenols and zinc dialkyldithiophosphates (ZDDP).
  • extreme-pressure and anti-wear agents are dilauryl phosphate, didodecyl phosphite, trialkylphosphate such as tri(2-ethylhexyl)phosphate, tricresylphosphate (TCP), zinc dialkyl(or diaryl)dithiophosphates (ZDDP), phospho-sulphurized fatty oils, zinc dialkyldithiocarbamate), mercaptobenzothiazole, sulphurized fatty oils, sulphurized terpenes, sulphurized cleic acid, alkyl and aryl polysulphides, sulphurized sperm oil, sulphurized mineral oil, sulphur chloride treated fatty oils, chlornaphta xanthate, cetyl chloride, chlorinated paraffinic oils, chlorinated paraffin wax sulphides, chlorinated paraffin wax, and zinc dialkyl(or diaryl)dithiophosphates (
  • corrosion inhibitors or anti-oxidants are radical scavengers such as phenolic antioxidants (sterically hindered), aminic antioxidants, organo-copper salts, hydroperoxides decomposers, butylated hydroxytoluene.
  • radical scavengers such as phenolic antioxidants (sterically hindered), aminic antioxidants, organo-copper salts, hydroperoxides decomposers, butylated hydroxytoluene.
  • anti-rust agents are amine derivative of alkenyl succinic anhydride.
  • the water-soluble oil composition of the invention is prepared by blending the base oil and the other ingredients under stirring or with any mixing device, preferably whilst controlling the temperature so that is does not exceed 50°C, and more preferably 35°C.
  • An oil-in-water emulsion is prepared by diluting under stirring the oil composition of the invention in water.
  • An interesting feature of the invention is that it is possible to use hard water having up to 200 mg calcium carbonate per liter.
  • deionized water which may previously have been warmed to around 35°C.
  • the emulsion generally comprises water and, based on the total volume of the emulsion, from 0.5 to 30%, preferably from 1 to 20%, by volume, of the oil composition.
  • the copper alloys to which the invention applies are any copper alloy, including brass and bronze alloys.
  • non-ferrous metals to which the invention applies are nickel and nickel alloys, zinc and zinc alloys.
  • the hot rolling process can be the classical process. It is generally carried out at a temperature of ingot 750°C.
  • the cold intermediate rolling process can be the classical process. It is generally carried out at ambient temperature.
  • the rolling process is preferably carried out on breakdown or finishing mills.
  • the instant oil-in-water composition allows a significant reduction of the number of passes. With conventional prior art emulsions, the number of passes was typically 3-10. The emulsion of the invention allows lowering this number by 1 pass, which is a significant improvement.
  • the emulsion preferably comprises, based on the total volume of the emulsion, from 2 to 3% by volume of the oil composition.
  • the emulsion preferably comprises, based on the total volume of the emulsion, from 4 to 7% by volume of the oil composition.
  • a composition is prepared by mixing the ingredients of Table 1 in the order in which they appear in this table. The temperature is maintained at a maximum of 50°C to ensure a complete dissolution and homogeneisation of the ingredients without impairing the properties of the emulsion.
  • Ingredients Content wt%) Hydrotreated naphthenic base oil (20 cSt at 40°C) 33.50 Hydrotreated naphthenic base oil (110 cSt at 40°C) 39.50
  • Polydimethylsiloxane dispersed silica compound defoamant
  • Di-tertiobutyl paracresol antioxidant
  • Trioctylphosphate ester extremee-pressure agent
  • Petroleum sulfonate surfactant
  • Triethanolamine cosurfactant
  • Glycerol monooleate ester lubricity agent
  • An emulsion is prepared by diluting under stirring the oil composition of Table 1 in deionized water prewarmed to 35°C. The characteristics of the obtained emulsion are given in Table 3.
  • Emulsion Method Typical characteristics Stability of the 6% (v/v) emulsion (at room temperature, for 20 hours) Mobil 1.0% cream pH value of fresh 6% (v/v) emulsion at 20°C ASTM E 70-90 8.6
  • a blank is first prepared by diluting a prior art oil composition which has the composition set out in Table 4 : Ingredients Content (wt%) Naphthenic base oil (100 cSt at 40°C) 39.0 Naphthenic base oil (22 cSc at 40°C) 36.0 Tap water 0.5 Petreoleum sulfonate 3.0 Amino ethyl alkanediol (C 3 to C 6 ) 0.3 Trioctyl phosphate ester 3.0 Trialkanol amine (C 2 to C 4 ) 1.0 5-carboxy 4-hexyl 2-cyclohexen 1-octanoic acid 0.7 Ethoxylated nonylphenol (5 ethylene oxide groups) 0.7 Ethoxylated nonylphenol (10 ethylene oxide groups) 2.4 Alkanol oleic acid ester (C 2 to C 12 ) 13.4
  • Two emulsions are prepared by respectively diluting the oil compositions of the invention and of the prior art in dionized water.
  • Both emulsions are tested on copper to assess the surface finish improvement.
  • the tests are carried out on copper strips in the following way.
  • All surface blemishes are removed from the test copper strips with silicon carbide paper. Each side is polished with silicon carbide grains picked with a pad of cotton moistened with iso-octane. The strips must be handled only with stainless steel forceps. After polishing, each strip is washed with iso-octane to remove the grains and immersed into fresh iso-octane. The strips are then removed from the wash solvent, dried with air and weighed to the nearest 0.1 mg. 500 ml of the test metal processing oil emulsion are prepared and 200 ⁇ 1 g are weighed twice and each emulsion sample is introduced into a 250 mf flask.
  • the dry copper strips are then immersed into the flasks containing the emulsion samples and the flasked are corked.
  • the flasked are placed into an oven at a temperature of 50°C for a given test period.
  • the flasks are withdrawn from the oven.
  • the strips are removed from the test emulsions, washed with acetone to remove water and with iso-octane to remove the oil. They are dried with air and then, weighed to the nearest 0.1 mg.
  • a further test cycle can be carried out by reimmersing the strips into the original test samples, corking the flasks and placing them into the ovent at the same temperature and for the same period as before.
  • Figure 1 shows the curves obtained when plotting the copper loss (or copper dissolution) in weight (ppm) against the duration of the test in hours.
  • Figure 2 is a graph showing the applied rolling force in metric ton/meter versus the number of passes.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
  • Conductive Materials (AREA)
  • Metal Rolling (AREA)
  • Contacts (AREA)

Claims (26)

  1. Composition d'huile hydrosoluble pour laminage à chaud et à froid intermédiaire de cuivre, d'alliages de cuivre et de métaux non ferreux, comprenant une huile de base et, par rapport au poids total de la composition :
    1 à 80% en poids d'une combinaison :
    d'un monoester d'un acide gras avec un polyol et
    d'un tétraester d'un acide gras avec du pentaérythritol;
       le rapport en poids du monoester au tétraester de ladite combinaison se situant dans la plage de 1:20 à 10:1; et
    0,02 à 2% en poids d'un dérivé d'azole.
  2. Composition d'huile hydrosoluble selon la revendication 1, comprenant en outre, par rapport au poids total de la composition, 0,1 à 20% d'un mélange d'alcools éthoxylés ayant 5 à 15 atomes de carbone et, de préférence, 12 à 15 atomes de carbone.
  3. Composition d'huile hydrosoluble selon la revendication 1 ou 2, comprenant, par rapport au poids total de la composition, 3 à 30% en poids de ladite combinaison.
  4. Composition d'huile hydrosoluble selon l'une quelconque des revendications 1 à 3, comprenant, par rapport au poids total de la composition, 0,05 à 1 % dudit dérivé d'azole.
  5. Composition d'huile hydrosoluble selon l'une quelconque des revendications 1 à 4, dans laquelle ledit rapport en poids du monoester au tétraester se situe dans la plage de 1:10 à 5:1.
  6. Composition d'huile hydrosoluble selon l'une quelconque des revendications 1 à 5, dans laquelle l'acide gras du monoester a 16 à 20 atomes de carbone et est de préférence l'acide oléique.
  7. Composition d'huile hydrosoluble selon l'une quelconque des revendications 1 à 6, dans laquelle le polyol du monoester est le glycérol.
  8. Composition d'huile hydrosoluble selon l'une quelconque des revendications 1 à 7, dans laquelle l'acide gras du tétraester a 16 à 20 atomes de carbone et est de préférence l'acide oléique.
  9. Composition d'huile hydrosoluble selon l'une quelconque des revendications 1 à 8, dans laquelle le dérivé d'azole est choisi dans le groupe constitué d'un aryltriazole, d'un arylimidazole et d'un arylthiazole.
  10. Composition d'huile hydrosoluble selon la revendication 9, dans laquelle l'aryltriazole est choisi dans le groupe constitué du benzotriazole, du toluènetriazole et du toluyltriazole.
  11. Composition d'huile hydrosoluble selon la revendication 9, dans laquelle l'arylimidazole est choisi dans le groupe constitué du benzimidazole et du 2-(5-aminopentyl)benzimidazole.
  12. Composition d'huile hydrosoluble selon la revendication 9, dans laquelle l'arylthiazole est le benzothiazole.
  13. Composition d'huile hydrosoluble selon la revendication 10, dans laquelle l'aryltriazole est le toluènetriazole.
  14. Composition d'huile hydrosoluble selon l'une quelconque des revendications 1 à 13, comprenant (en pourcentage en poids par rapport au poids total de la composition) :
    0,1 à 10% de trialkyl(en C1-C4)phénol;
    0,5 à 4,0% d'ester phosphate de trialkyle (en C3-C10);
    1 à 4% de sulfonate de pétrole;
    0,1 à 0,5% d'aminoalkyl(en C2-C3)alcanediol (en C2-C3)
    1 à 4% de trialcanol(en C2-C4)amine;
    2 à 10% de monoester d'acide gras(en C16-C20) et de glycérol;
    5 à 15% de tétraester d'acide gras(en C16-C20) et de pentaérythritol;
    0,5 à 1,0% d'acide 5-carboxy-4-hexyl-2-cyclohexène-1-octanoique;
    3 à 6% d'alcools éthoxylés (en C5-C15, comprenant 2 à 10 groupes CH2O);
    0,05 à 0,3% de dérivé de triazole;
    0,05 à 0,4% de polymère à base de siloxanne;
    le restant étant une huile de base lubrifiante naphténique ou un mélange d'huiles de base naphténiques.
  15. Composition d'huile hydrosoluble selon l'une quelconque des revendications 1 à 14, dans laquelle l'huile de base a une viscosité de 10 à 150 cSt, de préférence de 20 à 50 cSt à 40°C.
  16. Emulsion d'huile dans l'eau comprenant de l'eau et 0,5 à 30%, de préférence 1 à 15% (v/v), de la composition d'huile hydrosoluble selon l'une quelconque des revendications 1 à 15.
  17. Procédé pour la préparation d'une composition d'huile hydrosoluble selon l'une quelconque des revendications 1 à 15, comprenant le mélange de l'huile de base et des autres ingrédients en agitant ou avec un dispositif de mélange quelconque.
  18. Procédé pour la préparation d'une émulsion d'huile dans l'eau selon la revendication 16, comprenant la dilution de la composition d'huile dans de l'eau tout en mélangeant.
  19. Procédé de laminage à froid intermédiaire pour laminer des tôles de cuivre, d'alliages de cuivre et de métaux non ferreux, comprenant l'application d'une quantité efficace de l'émulsion selon la revendication 16.
  20. Procédé de laminage à froid intermédiaire selon la revendication 19, dans lequel le procédé de laminage est effectué dans un laminoir dégrossisseur et l'émulsion comprend, par rapport au volume total de l'émulsion, 2 à 3% en volume de la composition d'huile hydrosoluble selon l'une quelconque des revendications 1 à 15.
  21. Procédé de laminage à froid intermédiaire selon la revendication 19, dans lequel le procédé de laminage est effectué dans un laminoir finisseur et l'émulsion comprend, par rapport au volume total de l'émulsion, 4 à 7% en volume de la composition d'huile hydrosoluble selon l'une quelconque des revendications 1 à 15.
  22. Procédé de laminage à chaud pour laminer des tôles de cuivre, d'alliages de cuivre et de métaux non ferreux, comprenant l'application d'une quantité efficace de l'émulsion selon la revendication 16.
  23. Procédé de laminage à chaud selon la revendication 22, dans lequel le procédé de laminage est effectué dans un laminoir dégrossisseur et l'émulsion comprend, par rapport au volume total de l'émulsion, 2 à 3% en volume de la composition d'huile hydrosoluble selon l'une quelconque des revendications 1 à 15.
  24. Procédé de laminage à chaud selon la revendication 22, dans lequel le procédé de laminage est effectué dans un laminoir finisseur et l'émulsion comprend, par rapport au volume total de l'émulsion, 4 à 7% en volume de la composition d'huile hydrosoluble selon l'une quelconque des revendications 1 à 15.
  25. Utilisation de la composition d'huile hydrosoluble selon l'une quelconque des revendications 1 à 15 pour préparer des émulsions destinées à être utilisées dans un procédé de laminage à chaud ou à froid intermédiaire de cuivre, d'alliages de cuivre et de métaux non ferreux.
  26. Utilisation de l'émulsion d'eau dans l'huile selon la revendication 16 dans un procédé de laminage à chaud ou à froid intermédiaire.
EP01905750A 2000-02-08 2001-02-07 Composition de laminage a chaud et a temperature intermediaire de metaux non ferreux, d'alliages de cuivre, et de cuivre hydrosoluble Expired - Lifetime EP1257624B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP01905750A EP1257624B1 (fr) 2000-02-08 2001-02-07 Composition de laminage a chaud et a temperature intermediaire de metaux non ferreux, d'alliages de cuivre, et de cuivre hydrosoluble

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP00400348 2000-02-08
EP00400348A EP1123971A1 (fr) 2000-02-08 2000-02-08 Composition soluble dans l'eau pour le laminage à froid et à chaud de cuivre, d'aliages de cuivre et de produits intermédiaires non-ferreux
EP01905750A EP1257624B1 (fr) 2000-02-08 2001-02-07 Composition de laminage a chaud et a temperature intermediaire de metaux non ferreux, d'alliages de cuivre, et de cuivre hydrosoluble
PCT/EP2001/001381 WO2001059046A1 (fr) 2000-02-08 2001-02-07 Composition de laminage a chaud et a temperature intermediaire de metaux non ferreux, d'alliages de cuivre, et de cuivre hydrosoluble

Publications (2)

Publication Number Publication Date
EP1257624A1 EP1257624A1 (fr) 2002-11-20
EP1257624B1 true EP1257624B1 (fr) 2004-10-06

Family

ID=8173544

Family Applications (2)

Application Number Title Priority Date Filing Date
EP00400348A Withdrawn EP1123971A1 (fr) 2000-02-08 2000-02-08 Composition soluble dans l'eau pour le laminage à froid et à chaud de cuivre, d'aliages de cuivre et de produits intermédiaires non-ferreux
EP01905750A Expired - Lifetime EP1257624B1 (fr) 2000-02-08 2001-02-07 Composition de laminage a chaud et a temperature intermediaire de metaux non ferreux, d'alliages de cuivre, et de cuivre hydrosoluble

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP00400348A Withdrawn EP1123971A1 (fr) 2000-02-08 2000-02-08 Composition soluble dans l'eau pour le laminage à froid et à chaud de cuivre, d'aliages de cuivre et de produits intermédiaires non-ferreux

Country Status (10)

Country Link
US (1) US20060142167A1 (fr)
EP (2) EP1123971A1 (fr)
JP (1) JP2003522282A (fr)
CN (1) CN1395612A (fr)
AT (1) ATE278753T1 (fr)
AU (2) AU2001233748B2 (fr)
BR (1) BR0108159A (fr)
CA (1) CA2397879A1 (fr)
DE (1) DE60106208T2 (fr)
WO (1) WO2001059046A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4851749B2 (ja) * 2005-08-31 2012-01-11 住友軽金属工業株式会社 銅材用塑性加工油
JP5351428B2 (ja) * 2008-03-28 2013-11-27 出光興産株式会社 圧延油組成物
CN101307270B (zh) * 2008-07-04 2011-02-16 北京科技大学 一种铜及铜合金冷轧乳化油及其制造方法
JP2015503012A (ja) * 2011-12-09 2015-01-29 ロバート ディー. エバンス, 金属加工用流体組成物および圧密化黒鉛鉄の機械加工におけるその使用方法
CN106190458A (zh) * 2016-06-29 2016-12-07 兰晓光 一种环保型热轧油
CN114525166A (zh) * 2021-12-21 2022-05-24 西安思凯石化科技有限公司 一种环保型铜及铜合金专用乳化液配方及其制备方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS498004B1 (fr) * 1968-12-30 1974-02-23
US3923671A (en) * 1974-10-03 1975-12-02 Aluminum Co Of America Metal working lubricant
US4178260A (en) * 1974-10-31 1979-12-11 Exxon Research & Engineering Co. Ester based metal working lubricants
GB1521081A (en) * 1975-02-06 1978-08-09 Exxon Research Engineering Co Metal-working lubricants
JPS62285991A (ja) * 1986-06-03 1987-12-11 Nippon Mining Co Ltd 金属もしくは合金の圧延加工における4段冷間圧延機用圧延油
DE3620025A1 (de) * 1986-06-13 1987-12-17 Henkel Kgaa Verwendung von acylierten 3-amino-1,2,4-triazolen als korrosionsinhibitoren fuer buntmetalle
US4767554A (en) * 1987-09-18 1988-08-30 Nalco Chemical Company Polycarboxylic acid ester drawing and ironing lubricant emulsions and concentrates
US5114603A (en) * 1988-02-08 1992-05-19 Amoco Corporation Friction reducing lubricating oil composition
JP2990021B2 (ja) * 1994-08-23 1999-12-13 住友軽金属工業株式会社 アルミニウム用熱間圧延油および該圧延油を使用するアルミニウムの熱間圧延方法
WO1998008919A2 (fr) * 1996-08-30 1998-03-05 Solutia Inc. Nouveaux fluides hydrosolubles d'usinage de metaux
DE19703085A1 (de) * 1997-01-29 1998-07-30 Henkel Kgaa Kühlschmierstoffemulsion
US6060438A (en) * 1998-10-27 2000-05-09 D. A. Stuart Emulsion for the hot rolling of non-ferrous metals
EP1123969A1 (fr) * 2000-02-08 2001-08-16 Mobil Oil Francaise Composition soluble dans l'eau pour le laminage à froid d'aluminium et d'aliages d'aluminium
EP1123965A1 (fr) * 2000-02-08 2001-08-16 Mobil Oil Francaise Composition d'huile pour le laminage à froid d'acier et d'acier inoxydable

Also Published As

Publication number Publication date
JP2003522282A (ja) 2003-07-22
EP1257624A1 (fr) 2002-11-20
BR0108159A (pt) 2003-01-21
CN1395612A (zh) 2003-02-05
CA2397879A1 (fr) 2001-08-16
EP1123971A1 (fr) 2001-08-16
DE60106208D1 (de) 2004-11-11
AU2001233748B2 (en) 2004-12-23
US20060142167A1 (en) 2006-06-29
WO2001059046A1 (fr) 2001-08-16
AU3374801A (en) 2001-08-20
DE60106208T2 (de) 2006-02-16
ATE278753T1 (de) 2004-10-15

Similar Documents

Publication Publication Date Title
US6087308A (en) Non-sludging, high temperature resistant food compatible lubricant for food processing machinery
EP1265978B1 (fr) Aluminium hydrosoluble et une composition de laminage a chaud d'alliages d'aluminium
US6090761A (en) Non-sludging, high temperature resistant food compatible lubricant for food processing machinery
AU2001248310B2 (en) Hot rolling process for rolling aluminium and aluminium alloys sheets
AU2001239249A1 (en) Water-soluble aluminium and aluminium alloys hot rolling composition
EP1257624B1 (fr) Composition de laminage a chaud et a temperature intermediaire de metaux non ferreux, d'alliages de cuivre, et de cuivre hydrosoluble
AU2001248310A1 (en) Hot rolling process for rolling aluminium and aluminium alloys sheets
US6843087B2 (en) Cold rolling process for rolling hard metal or metal alloys
US4946612A (en) Lubricating oil composition for sliding surface and for metallic working and method for lubrication of machine tools using said composition
AU2001233748A1 (en) Water-soluble copper, copper alloys and non-ferrous metals intermediate cold and hot rolling composition
JP5607350B2 (ja) 電磁鋼板用冷間圧延油組成物及び圧延方法
EP1123968A1 (fr) Composition pour le laminage à froid d'alumine et d'alliages d'alumine
EP1123966A1 (fr) Composition d'huile pour le laminage à froid de cuivre et d'alliages non-ferreux
EP1123970A1 (fr) Composition d'huile pour le laminage à froid d'alumine et des alliages condenant de l'alumine
EP1123963A1 (fr) Composition lubrifiante non-salissante

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: 20020827

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RIN1 Information on inventor provided before grant (corrected)

Inventor name: CLAIRE, JEAN-YVES

Inventor name: PRINCE, FRANCIS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

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 CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;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: 20041006

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041006

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041006

Ref country code: LI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041006

Ref country code: CH

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041006

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041006

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041006

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 60106208

Country of ref document: DE

Date of ref document: 20041111

Kind code of ref document: P

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

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050106

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050106

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050106

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

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050117

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: 20050207

Ref country code: IE

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

Effective date: 20050207

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050207

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

Ref country code: MC

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

Effective date: 20050228

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20041006

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

ET Fr: translation filed
26N No opposition filed

Effective date: 20050707

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

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

Ref country code: GB

Payment date: 20070105

Year of fee payment: 7

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

Ref country code: NL

Payment date: 20070108

Year of fee payment: 7

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

Ref country code: DE

Payment date: 20070228

Year of fee payment: 7

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

Ref country code: PT

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

Effective date: 20050306

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

Ref country code: FR

Payment date: 20070201

Year of fee payment: 7

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

Effective date: 20080207

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

Effective date: 20080901

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: 20080901

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20081031

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: 20080902

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

Ref country code: FR

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

Effective date: 20080229

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: 20080207