EP2350243A2 - Korrosionsschutzmittel für metallische bauteile - Google Patents
Korrosionsschutzmittel für metallische bauteileInfo
- Publication number
- EP2350243A2 EP2350243A2 EP09752763A EP09752763A EP2350243A2 EP 2350243 A2 EP2350243 A2 EP 2350243A2 EP 09752763 A EP09752763 A EP 09752763A EP 09752763 A EP09752763 A EP 09752763A EP 2350243 A2 EP2350243 A2 EP 2350243A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- corrosion inhibitor
- inhibitor according
- corrosion
- platelet
- surfactant
- 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.)
- Withdrawn
Links
- 239000002184 metal Substances 0.000 title abstract 3
- 238000000576 coating method Methods 0.000 claims abstract description 18
- 239000000945 filler Substances 0.000 claims abstract description 13
- 239000011248 coating agent Substances 0.000 claims abstract description 11
- 239000004094 surface-active agent Substances 0.000 claims abstract description 11
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical class OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000314 lubricant Substances 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 239000011230 binding agent Substances 0.000 claims abstract description 5
- 150000001734 carboxylic acid salts Chemical class 0.000 claims abstract description 5
- 238000005260 corrosion Methods 0.000 claims description 65
- 230000007797 corrosion Effects 0.000 claims description 61
- 239000003112 inhibitor Substances 0.000 claims description 41
- 239000002245 particle Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000010445 mica Substances 0.000 claims description 6
- 229910052618 mica group Inorganic materials 0.000 claims description 6
- -1 acetylene glycol Chemical compound 0.000 claims description 5
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 5
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 5
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 4
- 150000000475 acetylene derivatives Chemical group 0.000 claims description 4
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- 229910019142 PO4 Inorganic materials 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- 239000007795 chemical reaction product Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- 235000021317 phosphate Nutrition 0.000 claims description 3
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 3
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 3
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 2
- 229910052582 BN Inorganic materials 0.000 claims description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 2
- CEGOLXSVJUTHNZ-UHFFFAOYSA-K aluminium tristearate Chemical compound [Al+3].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CEGOLXSVJUTHNZ-UHFFFAOYSA-K 0.000 claims description 2
- 229940063655 aluminum stearate Drugs 0.000 claims description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 2
- 235000013539 calcium stearate Nutrition 0.000 claims description 2
- 239000008116 calcium stearate Substances 0.000 claims description 2
- ZCZLQYAECBEUBH-UHFFFAOYSA-L calcium;octadec-9-enoate Chemical compound [Ca+2].CCCCCCCCC=CCCCCCCCC([O-])=O.CCCCCCCCC=CCCCCCCCC([O-])=O ZCZLQYAECBEUBH-UHFFFAOYSA-L 0.000 claims description 2
- 150000004676 glycans Chemical class 0.000 claims description 2
- MAQCMFOLVVSLLK-UHFFFAOYSA-N methyl 4-(bromomethyl)pyridine-2-carboxylate Chemical compound COC(=O)C1=CC(CBr)=CC=N1 MAQCMFOLVVSLLK-UHFFFAOYSA-N 0.000 claims description 2
- 229920001282 polysaccharide Polymers 0.000 claims description 2
- 239000005017 polysaccharide Substances 0.000 claims description 2
- 239000000454 talc Substances 0.000 claims description 2
- 229910052623 talc Inorganic materials 0.000 claims description 2
- LPEBYPDZMWMCLZ-CVBJKYQLSA-L zinc;(z)-octadec-9-enoate Chemical compound [Zn+2].CCCCCCCC\C=C/CCCCCCCC([O-])=O.CCCCCCCC\C=C/CCCCCCCC([O-])=O LPEBYPDZMWMCLZ-CVBJKYQLSA-L 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 239000003795 chemical substances by application Substances 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 4
- 239000000049 pigment Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000001050 lubricating effect Effects 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003925 fat Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229920000609 methyl cellulose Polymers 0.000 description 2
- 239000001923 methylcellulose Substances 0.000 description 2
- 239000011814 protection agent Substances 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- GVALZJMUIHGIMD-UHFFFAOYSA-H magnesium phosphate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O GVALZJMUIHGIMD-UHFFFAOYSA-H 0.000 description 1
- 239000004137 magnesium phosphate Substances 0.000 description 1
- 229960002261 magnesium phosphate Drugs 0.000 description 1
- 229910000157 magnesium phosphate Inorganic materials 0.000 description 1
- 235000010994 magnesium phosphates Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229910000165 zinc phosphate Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
- C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
- C09D5/084—Inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/10—Liquid materials
-
- 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
- C10M173/00—Lubricating compositions containing more than 10% water
- C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/0073—Anticorrosion compositions
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/164—Organic compounds containing a carbon-carbon triple bond
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/166—Organic compounds containing borium
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/12—Oxygen-containing compounds
- C23F11/124—Carboxylic acids
-
- 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
- C10M2201/04—Elements
- C10M2201/041—Carbon; Graphite; Carbon black
-
- 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
- C10M2201/06—Metal compounds
- C10M2201/061—Carbides; Hydrides; Nitrides
-
- 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
- C10M2201/103—Clays; Mica; Zeolites
-
- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix 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
- C10M2207/126—Carboxylix 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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an alcohol or ester thereof; bound to an aldehyde, ketonic, ether, ketal or acetal radical
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/12—Polysaccharides, e.g. cellulose, biopolymers
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
- C10M2227/06—Organic compounds derived from inorganic acids or metal salts
- C10M2227/061—Esters derived from boron
-
- 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
- C10N2020/02—Viscosity; Viscosity index
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/055—Particles related characteristics
- C10N2020/06—Particles of special shape or size
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/40—Low content or no content compositions
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/64—Environmental friendly compositions
Definitions
- the invention relates to a corrosion inhibitor for metallic components.
- a corrosion protection coating on a metallic component in particular a component with a high content of iron, for.
- a steel component to protect the component from oxidative corrosion and be environmentally friendly.
- a corrosion inhibitor which is to be used for the production of anti-corrosion coatings on metallic components, is also often required that this does not bother after a shoring of components in machinery or equipment or does not need to be removed before installation, which is complicated and therefore undesirable .
- anticorrosive coatings usually consist of oily or oil or greasy coatings. These coatings are often paraffinic, naphthenic or aromatic mineral oils or synthetic or natural fats or oils. These known anti-corrosion coatings serve to seal a surface of components by an oil or grease layer against moisture and oxidative attack. During or after assembly of the components thus protected, the anticorrosive coatings are in many cases troublesome and therefore undesirable. The components are therefore usually degreased and cleaned prior to installation in complex processes. This not only leads to considerable environmental pollution, but also to considerable additional costs.
- Aqueous corrosion inhibitors which contain carboxylic acids and phosphate esters have also become known from the prior art. Although such corrosion inhibitors are intended to delay an oxidative attack on metallic components, they are not or only insufficiently compatible with aqueous lubricant compositions. From the document JP 2003013263 A, an aqueous corrosion inhibitor has become known, which can be used for components made of steel. According to this document, an aqueous corrosion inhibitor is disclosed, which in addition to water and additives such as surfactants and thickeners, for. As kaolin, clay or mica, pigments containing which should ensure corrosion protection. The pigments which z.
- Example of phosphates such as zinc phosphate or magnesium phosphate have an average particle size of at most 3 microns.
- an average particle size of the pigments is chosen to be small so that the pigments do not agglomerate.
- a corrosion protection effect of such a corrosion inhibitor is based essentially exclusively on the effect caused by the pigments, which is unsatisfactory for a sustainable corrosion protection.
- it can not be ruled out, despite the small particle size, that the intended pigments agglomerate.
- the object of the invention is to provide a corrosion protection agent of the type mentioned, which allows a good coating of metallic components, possibly also oiled or greased metallic components, the corrosion inhibitor or a corrosion protection coating created from this must be removed neither from obstructing the components still disturbs after installation and wherein the corrosion inhibitor or the anti-corrosion coating created from this has great corrosion protection, is environmentally compatible and compatible with an aqueous lubricant fluid.
- a corrosion inhibitor which comprises (by weight): a) more than 50% water; b) a surfactant; c) a boric acid derivative; d) a platelet or rod-shaped filler; e) optionally a binder; f) optionally a carboxylic acid salt.
- a corrosion inhibitor according to the invention has a double anti-corrosion effect.
- the platelet-shaped or rod-shaped filler whose particles have a very high aspect ratio, ie a large ratio of particle diameter or length to particle thickness, seals them off by the attachment of particles to the surface of the component, so that very long diffusion paths are corrosive acting substances arise, which come into contact with the coated surface.
- a physically effective corrosion protection mechanism is given.
- a boric acid derivative is provided, for example a reaction product of boric anhydride with triethanolamine, so that a chemically effective corrosion protection mechanism is also provided.
- a corrosion protection coating can be produced, which has no or only a small number of capillary channels for gases such as air and also protects the coated surface in a chemical manner.
- the surface is not only quasi-diffusion-proof, but also chemically passivated.
- the corrosion inhibitor according to the invention is completely compatible with aqueous or aqueous lubricating or cooling liquids, wherein surprisingly it has been shown in relation to aqueous lubricating fluids that a lubricating effect is increased by the interaction of a corrosion inhibitor according to the invention in the form of a corrosion protection coating with aqueous lubricating fluids is because the corrosion inhibitor of the invention leads to a reduction of a friction coefficient.
- the anticorrosive agent comprises a platelet-shaped filler.
- Particularly suitable fillers are selected from the group consisting of graphite, mica, hexagonal boron nitride, talc, kaolin and iron mica. It also proves favorable in this regard that an average particle diameter of the platelet-shaped filler is less than 15 ⁇ m, preferably less than 10 ⁇ m, in particular less than 7.5 ⁇ m. An average particle diameter is preferably 0.5 to 5.0 ⁇ m.
- any substances which lower a surface tension can be used as surfactants.
- Such surfactants or wetting agents have the advantage that good wetting performance can be achieved without toxic or environmentally harmful side effects are to be feared.
- acetylene derivatives a corrosion inhibitor having a particularly high corrosion protection effect can be produced, although the interaction of this component with the other corrosion protection active components of the anticorrosive agent has not yet been clarified.
- a binder from the group of polysaccharides can be added to the corrosion protection agent.
- a carboxylic acid salt selected from the group consisting of zinc stearate, calcium stearate, aluminum stearate, zinc oleate, calcium oleate and aluminum oleate may be provided in a corrosion inhibitor according to the invention, which has proved to be advantageous.
- a corrosion inhibitor according to the invention is essentially free of phosphates, which represents a further advantage with regard to environmental compatibility.
- the corrosion inhibitor comprises greater than 80%, preferably greater than 90%, water.
- An amount of the fillers can be chosen arbitrarily in a wide range.
- a preferred range in which a high corrosion protection effect is given, but the corrosion inhibitor can also easily be processed or applied to metallic components is 0.5 to 30%, preferably 0.5 to 5.0%.
- An amount of the surfactant in the anticorrosion agent is preferably in the range of 0.1 to 2.0%. In this area, the benefits of the surfactant come fully to fruition. at Lower levels may not be given a desired effect of the surfactant. Even higher contents than 2.0% can be disadvantageous.
- a corrosion inhibitor according to the invention is preferably used for components made of a steel alloy.
- An application of the corrosion inhibitor can be carried out in any manner, in particular by immersing a component or spraying the corrosion inhibitor on the component.
- Example 1 92.0 liters of demineralized water are introduced and 2.0 kg of polyvinyl alcohol (fully hydrolyzed, viscosity 30 mPas 2ig% Hoppler) dissolved and added 0.5 kg of acetylene glycol. Thereafter, 2.5 kg of graphite (d50 4.0 microns, and 99.5% carbon) and 2.0 kg of zinc stearate and 1, 0 kg of boric acid derivative (prepared according to Example 1) are added. The corrosion inhibitor prepared in this way can be used according to Example 1.
- Example 3 92.0 liters of demineralized water are introduced and 2.0 kg of polyvinyl alcohol (fully hydrolyzed, viscosity 30 mPas 2ig% Hoppler) dissolved and added 0.5 kg of acetylene glycol. Thereafter, 2.5 kg of graphite (d50 4.0 microns, and 99.5% carbon) and 2.0 kg of zinc stearate and 1, 0 kg of boric acid derivative (prepared according to Example 1) are added. The corrosion inhibitor prepared
- Example 1 According to the method of Example 1 90.0 liters of demineralized water are introduced and added 0.5 kg of acetylene glycol. Then there are 3.5 kg
- Methylcellulose (viscosity 300 mPas 2% Höppler) dissolved. It will then be 2.5 kg
- Example 1 The corrosion inhibitor can be used according to Example 1.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Lubricants (AREA)
- Paints Or Removers (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008051264A DE102008051264A1 (de) | 2008-10-10 | 2008-10-10 | Korrosionsschutzmittel |
| PCT/EP2009/063295 WO2010040859A2 (de) | 2008-10-10 | 2009-10-12 | Korrosionsschutzmittel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2350243A2 true EP2350243A2 (de) | 2011-08-03 |
Family
ID=41796095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09752763A Withdrawn EP2350243A2 (de) | 2008-10-10 | 2009-10-12 | Korrosionsschutzmittel für metallische bauteile |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20110275548A1 (de) |
| EP (1) | EP2350243A2 (de) |
| CN (1) | CN102177228A (de) |
| DE (1) | DE102008051264A1 (de) |
| WO (1) | WO2010040859A2 (de) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009032520A1 (de) | 2009-07-10 | 2011-01-20 | Magna Steyr Fahrzeugtechnik Ag & Co Kg | Verfahren zur Herstellung und Erstinbetriebnahme eines Getriebes mit einem Schmiermittel auf Basis von Wasser |
| US8782150B2 (en) * | 2010-11-09 | 2014-07-15 | Sony Corporation | Method and apparatus for enabling device communication and control using XMPP |
| CN103806004B (zh) * | 2014-02-25 | 2015-09-30 | 山东省科学院能源研究所 | 太阳能热水器用换热工质 |
| EP3042946A1 (de) * | 2015-01-07 | 2016-07-13 | Bondmann Quimica Ltda | Bio-Schmier-Metallbearbeitungsflüssigkeit ohne Öle und Emulgatoren |
| CN104910875A (zh) * | 2015-06-24 | 2015-09-16 | 芜湖市晨曦新型建材科技有限公司 | 防腐蚀阻垢防冻液及其制备方法 |
| DE102016207082A1 (de) * | 2016-04-26 | 2017-10-26 | Zf Friedrichshafen Ag | Konservierung von Bauteilen |
| CN106010181B (zh) * | 2016-06-20 | 2018-04-06 | 上海理工大学 | 含纳米氮化硼的金属表面处理剂及其耐腐蚀涂层的制备方法 |
| CN106189602B (zh) * | 2016-08-22 | 2018-10-16 | 广东纳路纳米科技有限公司 | 一种改性白石墨烯复合抗氧化涂料及其制备 |
| US10822501B2 (en) * | 2016-11-17 | 2020-11-03 | Ningbo Institute Of Materials Technology & Engineering, Chinese Academy Of Sciences | Hexagonal boron nitride epoxy compound anticorrosive paint, and preparation method and use thereof |
| FR3059007B1 (fr) * | 2016-11-21 | 2018-12-07 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Composition de protection pour des substrats a base d'aluminium |
| CN108504337A (zh) * | 2018-04-09 | 2018-09-07 | 徐冬 | 一种改性乙二醇基防冻冷却液的制备方法 |
| FR3096371B1 (fr) * | 2019-05-22 | 2021-05-14 | Safran Aircraft Engines | Formulation aqueuse lubrifiante, son utilisation et procédé de fabrication d'une pièce la mettant en œuvre |
| EP3901291B1 (de) | 2020-04-24 | 2022-03-02 | Schaeffler Technologies AG & Co. KG | Maschinenelement mit einer wälzkontaktfläche und verfahren zur wärmebehandlung eines maschinenelementes |
| CN111850626A (zh) * | 2020-07-06 | 2020-10-30 | 苏州剑派实业有限公司 | 一种耐腐蚀螺栓及其防腐蚀处理方法 |
| EP4189265A1 (de) | 2020-07-29 | 2023-06-07 | Sew-Eurodrive GmbH & Co. KG | Verfahren zum herstellen eines getriebes mit schmierstoff und getriebesystem |
| EP4332177A1 (de) * | 2022-09-02 | 2024-03-06 | Ewald Dörken Ag | Wässrige beschichtungszusammensetzung und ihre verwendung |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USB613810I5 (de) * | 1959-02-11 | |||
| DE2007229A1 (de) * | 1969-02-19 | 1970-09-10 | The Dow Chemical Company, Midland, Mich. (V.St.A.) | Borat-Korrosionsinhibitoren |
| US3719598A (en) * | 1970-10-23 | 1973-03-06 | Master Chemical Corp | Aqueous cutting fluid which protects ferrous metals against corrosion |
| US4257902A (en) * | 1976-08-04 | 1981-03-24 | Singer & Hersch Industrial Development (Pty.) Ltd. | Water-based industrial fluids |
| US4533481A (en) * | 1983-04-20 | 1985-08-06 | The Lubrizol Corporation | Polycarboxylic acid/boric acid/amine salts and aqueous systems containing same |
| US4755311A (en) * | 1986-08-14 | 1988-07-05 | The Lubrizol Corporation | Phosphorus-, sulfur- and boron-containing compositions, and lubricant and functional fluid compositions containing same |
| JPH02305894A (ja) * | 1989-05-19 | 1990-12-19 | Nkk Corp | 鋼板用冷間圧延油 |
| JP2920218B2 (ja) * | 1990-03-14 | 1999-07-19 | 大同化学工業株式会社 | 水溶性熱間潤滑剤組成物 |
| US5354485A (en) * | 1993-03-26 | 1994-10-11 | The Lubrizol Corporation | Lubricating compositions, greases, aqueous fluids containing organic ammonium thiosulfates |
| WO1995031297A1 (en) * | 1994-05-13 | 1995-11-23 | Henkel Corporation | Aqueous metal coating composition and process with reduced staining and corrosion |
| US5547595A (en) * | 1995-02-07 | 1996-08-20 | Henkel Corporation | Aqueous lubricant and process for cold forming metal, particularly pointing thick-walled metal tubes |
| US6194357B1 (en) * | 1996-06-21 | 2001-02-27 | Henkel Corporation | Waterborne lubricant for the cold plastic working of metals |
| JP3517522B2 (ja) * | 1996-06-21 | 2004-04-12 | 日本パーカライジング株式会社 | 金属材料の冷間塑性加工用水系潤滑剤 |
| JP2911113B2 (ja) * | 1997-06-02 | 1999-06-23 | 工業技術院長 | 高性能潤滑油 |
| CA2301141A1 (en) * | 1998-06-15 | 1999-12-23 | The Lubrizol Corporation | Methods of using an aqueous composition containing a water-soluble or water-dispersible synthetic polymer and resultant compositions formed thereof |
| DE19854592A1 (de) * | 1998-11-26 | 2000-05-31 | Henkel Kgaa | Metallbearbeitungs- und Reinigungsverfahren |
| WO2000043470A1 (en) * | 1999-01-22 | 2000-07-27 | Nalco Chemical Company | Water based metal working composition |
| US20040206266A1 (en) * | 2001-02-14 | 2004-10-21 | Metal Coatings International Inc. | Particulate metal alloy coating for providing corrosion protection |
| JP2003013263A (ja) | 2001-04-27 | 2003-01-15 | Mikuni Color Ltd | 防錆顔料分散液およびその製造方法、ならびに防錆塗料 |
| US8563481B2 (en) * | 2005-02-25 | 2013-10-22 | Clearwater International Llc | Corrosion inhibitor systems for low, moderate and high temperature fluids and methods for making and using same |
| US7915206B2 (en) * | 2005-09-22 | 2011-03-29 | Ecolab | Silicone lubricant with good wetting on PET surfaces |
| AT9168U1 (de) | 2006-03-03 | 2007-05-15 | Magna Steyr Fahrzeugtechnik Ag | Betriebsbereites getriebe, betriebsflüssigkeit für ein solches und verfahren zu dessen erstinbetriebnahme |
-
2008
- 2008-10-10 DE DE102008051264A patent/DE102008051264A1/de not_active Ceased
-
2009
- 2009-10-12 CN CN2009801405746A patent/CN102177228A/zh active Pending
- 2009-10-12 WO PCT/EP2009/063295 patent/WO2010040859A2/de not_active Ceased
- 2009-10-12 EP EP09752763A patent/EP2350243A2/de not_active Withdrawn
- 2009-10-12 US US13/123,429 patent/US20110275548A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| None * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008051264A1 (de) | 2010-04-15 |
| WO2010040859A3 (de) | 2010-07-15 |
| US20110275548A1 (en) | 2011-11-10 |
| CN102177228A (zh) | 2011-09-07 |
| WO2010040859A2 (de) | 2010-04-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2350243A2 (de) | Korrosionsschutzmittel für metallische bauteile | |
| CN101809131B (zh) | 用于热锻造应用的润滑剂 | |
| WO2020011758A1 (de) | Umweltverträgliches schmierfett für stahlseile | |
| DE3786268T2 (de) | Multifunktionaler Schutzanstrich für Zinkbeschichtete Stahloberflächen und ihre Legierungen. | |
| WO2002014458A1 (en) | Water-based composition for protective film formation | |
| DE69418029T2 (de) | Rohrelement für erdverlegte rohrleitung, entsprechende erdverlegte rohrleitung und herstellungsverfahren eines solchen rohrelementes | |
| WO2016037814A1 (de) | Verwendung eines sulfats sowie verfahren zum herstellen eines stahlbauteils durch umformen in einer umformmaschine | |
| EP0718377B1 (de) | Korrosionsschutzpigment und dessen Anwendung | |
| DE2513685C2 (de) | Rostschutz-Zubereitung zur Herstellung von Schutzüberzügen auf Metalloberflächen | |
| DE60304501T2 (de) | Rostschutzzusammensetzung | |
| DE3626657A1 (de) | Korrosionsschutzmittel und verfahren zum schutz von metalloberflaechen gegen korrosion | |
| DE2702503A1 (de) | Korrosionsinhibierende zubereitungen | |
| DD300744A5 (de) | Zusammensetzung | |
| EP0146140A2 (de) | Verfahren zum Verformen von Metall | |
| DE10212861A1 (de) | Formtrennmittel für langsamen Spritzguß | |
| WO2017186791A1 (de) | Rostlöser zum lösen von korrosionsschichten | |
| EP0024062A1 (de) | Reaktionsschmiermittel und Verfahren zur Vorbereitung von Metallen für die Kaltverformung | |
| EP2337833B1 (de) | Verfahren zur herstellung und erstinbetriebnahme eines getriebes mit einem schmiermittel auf basis von wasser und derartiges schmiermittel | |
| DE4402587A1 (de) | Chromatiertes Metallblech mit hoher Korrosionsbeständigkeit, das eine verbesserte Gleitfähigkeit und elektrische Leitfähigkeit aufweist | |
| DE1519047B2 (de) | Mit einem schwermetallueberzug versehene traegerpartikel, deren herstellung und verwendung in korrosionsverhindernden mitteln | |
| DE102019105336A1 (de) | Schmierstoff zur Metallumformung, insbesondere zur Umformung von Stahl, und Verfahren zur Herstellung des Umformschmierstoffs | |
| EP0231524A2 (de) | Verwendung von Alkylbenzoylacrylsäuren als Korrosionsinhibitoren | |
| EP1799775B1 (de) | Rostschutzmittel und verfahren zu dessen herstellung | |
| DE69915469T2 (de) | Wasserlösliche zusammensetzung als beschichtung für metalloberflächen in form von trockenen filmen, die abdichtend gegenüber atmosphärischer korrosion sind | |
| DE3341633A1 (de) | Rosthemmende substanz |
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: 20110426 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR |
|
| DAX | Request for extension of the european patent (deleted) | ||
| 17Q | First examination report despatched |
Effective date: 20161223 |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| INTG | Intention to grant announced |
Effective date: 20180802 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20181213 |