EP1489199A1 - Composition et procédé pou appliquer un revêtement résistant à la corrosion et magnésium revêtu - Google Patents

Composition et procédé pou appliquer un revêtement résistant à la corrosion et magnésium revêtu Download PDF

Info

Publication number: EP1489199A1
Authority: EP; European Patent Office
Prior art keywords: magnesium; solution; phosphonic acids; corrosion; phosphate
Prior art date: 2003-06-20
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP04253681A

Other languages

German (de)

English (en)

Inventor

Xia Tang

Mark Jaworowski

Kenneth Hammerschmidt

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.)

RTX Corp

Original Assignee

United Technologies Corp

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.)

2003-06-20

Filing date

2004-06-18

Publication date

2004-12-22

2004-06-18 Application filed by United Technologies Corp filed Critical United Technologies Corp

2004-12-22 Publication of EP1489199A1 publication Critical patent/EP1489199A1/fr

Status Withdrawn legal-status Critical Current

Links

238000005260 corrosion Methods 0.000 title claims abstract description 30
230000007797 corrosion Effects 0.000 title claims abstract description 30
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 18
239000011777 magnesium Substances 0.000 title claims abstract description 14
229910052749 magnesium Inorganic materials 0.000 title claims abstract description 14
238000000034 method Methods 0.000 title claims description 4
230000008569 process Effects 0.000 title claims description 4
239000008199 coating composition Substances 0.000 title 1
229910000861 Mg alloy Inorganic materials 0.000 claims abstract description 16
239000003112 inhibitor Substances 0.000 claims abstract description 13
239000000758 substrate Substances 0.000 claims abstract description 10
LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 claims abstract description 6
ABLZXFCXXLZCGV-UHFFFAOYSA-N phosphonic acid group Chemical group P(O)(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims abstract description 4
150000003839 salts Chemical class 0.000 claims abstract description 4
-1 fluoride ions Chemical class 0.000 claims description 27
238000000576 coating method Methods 0.000 claims description 14
239000011248 coating agent Substances 0.000 claims description 13
NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 9
YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 claims description 8
239000002253 acid Substances 0.000 claims description 8
229910019142 PO4 Inorganic materials 0.000 claims description 6
150000007513 acids Chemical class 0.000 claims description 6
239000010452 phosphate Substances 0.000 claims description 6
ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 claims description 2
239000000203 mixture Substances 0.000 claims description 2
238000004519 manufacturing process Methods 0.000 claims 1
238000007739 conversion coating Methods 0.000 abstract description 13
FQKMRXHEIPOETF-UHFFFAOYSA-N F.OP(O)(O)=O Chemical compound F.OP(O)(O)=O FQKMRXHEIPOETF-UHFFFAOYSA-N 0.000 abstract description 4
NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 3
150000002222 fluorine compounds Chemical class 0.000 description 3
GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 description 3
BFXAWOHHDUIALU-UHFFFAOYSA-M sodium;hydron;difluoride Chemical compound F.[F-].[Na+] BFXAWOHHDUIALU-UHFFFAOYSA-M 0.000 description 3
229910052720 vanadium Inorganic materials 0.000 description 3
LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 3
KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
125000003277 amino group Chemical group 0.000 description 2
229940111685 dibasic potassium phosphate Drugs 0.000 description 2
SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 description 2
ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 description 2
238000010348 incorporation Methods 0.000 description 2
ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 description 2
229910001635 magnesium fluoride Inorganic materials 0.000 description 2
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 2
239000004137 magnesium phosphate Substances 0.000 description 2
229960002261 magnesium phosphate Drugs 0.000 description 2
229910000157 magnesium phosphate Inorganic materials 0.000 description 2
235000010994 magnesium phosphates Nutrition 0.000 description 2
230000004048 modification Effects 0.000 description 2
238000012986 modification Methods 0.000 description 2
229940111688 monobasic potassium phosphate Drugs 0.000 description 2
235000019796 monopotassium phosphate Nutrition 0.000 description 2
239000003973 paint Substances 0.000 description 2
NROKBHXJSPEDAR-UHFFFAOYSA-M potassium fluoride Chemical compound [F-].[K+] NROKBHXJSPEDAR-UHFFFAOYSA-M 0.000 description 2
239000007836 KH2PO4 Substances 0.000 description 1
206010073310 Occupational exposures Diseases 0.000 description 1
239000004480 active ingredient Substances 0.000 description 1
230000001464 adherent effect Effects 0.000 description 1
125000000217 alkyl group Chemical group 0.000 description 1
229910000147 aluminium phosphate Inorganic materials 0.000 description 1
230000004888 barrier function Effects 0.000 description 1
JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 1
150000001875 compounds Chemical class 0.000 description 1
229910000396 dipotassium phosphate Inorganic materials 0.000 description 1
230000003993 interaction Effects 0.000 description 1
HZZOEADXZLYIHG-UHFFFAOYSA-N magnesiomagnesium Chemical compound [Mg][Mg] HZZOEADXZLYIHG-UHFFFAOYSA-N 0.000 description 1
159000000003 magnesium salts Chemical class 0.000 description 1
229910000402 monopotassium phosphate Inorganic materials 0.000 description 1
231100000675 occupational exposure Toxicity 0.000 description 1
150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
235000003270 potassium fluoride Nutrition 0.000 description 1
239000011698 potassium fluoride Substances 0.000 description 1
CMZUMMUJMWNLFH-UHFFFAOYSA-N sodium metavanadate Chemical compound [Na+].[O-][V](=O)=O CMZUMMUJMWNLFH-UHFFFAOYSA-N 0.000 description 1
229940062627 tribasic potassium phosphate Drugs 0.000 description 1
LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 1
229910000404 tripotassium phosphate Inorganic materials 0.000 description 1
229910000166 zirconium 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/34—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
- C23C22/36—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides containing also phosphates
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/40—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing molybdates, tungstates or vanadates
- C23C22/44—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing molybdates, tungstates or vanadates containing also fluorides or complex fluorides
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/68—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous solutions with pH between 6 and 8
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
- C23C22/77—Controlling or regulating of the coating process

Definitions

the present invention relates to a corrosion resistant, chromate-free, phosphate-fluoride conversion coating, with or without vanadate, for a product formed from magnesium or a magnesium alloy and to a coating solution for use in a coating process.
Magnesium alloys are light and strong, but very vulnerable to corrosion due to the reactive nature of magnesium. Magnesium alloys are protected from corrosion in all practical applications.
a commonly used, low cost, corrosion resistant treatment for magnesium alloys is a dichromate based conversion coating. While dichromate based conversion coatings provide good corrosion protection, they are based on a chemical compound (hexavalent chromium) that has many occupational exposure risks.
a non-chromate, corrosion resistant magnesium conversion coating is required to meet industry demands.
U.S. Patent No. 5,683,522 to Joesten Another treatment for protecting magnesium or magnesium alloy products is shown in U.S. Patent No. 5,683,522 to Joesten.
a paint adherent and corrosion resistant coating of magnesium phosphate and magnesium fluoride is applied to a product formed from a magnesium alloy.
the process for applying the coating involves immersing the magnesium alloy product in a solution having phosphate and fluoride ions.
This treatment while providing a barrier film and very good paint adhesion, does not include electrochemically active ingredients to suppress corrosion.
U.S. Patent Application Publication No. 2003/0150525 discloses an improved phosphate-fluoride corrosion coating for magnesium and process for applying same.
a chromate-free, phosphate-fluoride conversion coating, with or without vanadate, formed on a magnesium or a magnesium alloy substrate includes an active corrosion inhibitor selected from the group consisting of organo-phosphonic acids.
the phosphonic acid group reacts with the magnesium metal of the substrate to form an insoluble salt.
the preferred organo-phosphonic acids used as corrosion inhibitors in accordance with the present invention are selected from the group consisting of straight chain or branched amino alkyl phosphonic acids, straight chain or branched alkyl phoshonic acids, and triphosphonic acids, particularly, nitrilotris (methylene) triphosphonic acid (NTMP).
the corrosion inhibitor includes amino alkyl phosphonic acids, the amine group can interact with vanadate ions in the coating solution to increase the vanadate incorporation into the conversion coating.
a solution for forming a chromate-free, corrosion resistant coating on a magnesium or magnesium alloy substrate comprises a solution having phosphate and fluoride ions and, an active corrosion inhibitor selected from the group consisting of organo-phosphonic acids.
the solution of the present invention may optionally include vanadate anions.
the active corrosion inhibitor is selected from the group consisting of straight chained or branched amino-alkyl phosphonic acids, straight chained or branched alkyl phosphonic acids, triphosphonic acids, and mixtures thereof.
a particular useful triphosphonic acid comprises nitrilotris (methylene) triphosphonic acid (NTMP).
the chromate-free solution include phosphate and fluoride ions.
Phosphate and fluoride ions are present in an amount of between about 1 g/L to 50 g/L and 1 g/L to 10 g/L, respectively, preferably between 10 g/L to 25 g/L and 3 g/L to 5 g/L, respectively. It is important in the present invention to control the pH of the solution and this is achieved by the amount of phosphate ions and fluoride ions in the solution.
the pH of the solution is preferably in the range of 5 to 7.
the particular phosphate and fluoride compounds employed in forming the solution having the appropriate pH is disclosed in detail in U.S. Patent Application Publication No.
suitable phosphate compounds include monobasic potassium phosphate (KH 2 PO 4 ), dibasic potassium phosphate (K 2 HPO 4 ), tribasic potassium phosphate (K 3 PO 4 ), or phosphoric acid (H 3 PO 4 ), or combinations of these alternatives.
a preferred embodiment is a combination of monobasic potassium phosphate and dibasic potassium phosphate.
Suitable fluoride compounds include sodium bifluoride (NaHF 2 ). In a preferred embodiment, the concentration is provided at about 0.3-0.5% by weight sodium bifluoride. Other fluoride compounds, such as potassium fluoride or hydrofluoric acid, may also be used.
the corrosion inhibitor is present in the solution in an amount of between about 1 ppm to 1 wt%, preferably 10 ppm to 0.5 wt%.
the corrosion inhibitor is in the form of an organo-phosphonic acid.
organo-phosphonic acids include straight chained and branched amino-alkyl phosphonic acids, straight chained or branched alkyl phosphonic acids and triphosphonic acids.
a particularly useful triphosphonic acid is nitrilotris (methylene) triphosphonic acid (NTMP).
the solution may optionally include vanadate anions.
Sodium vanadate is a suitable source of vanadate ions for the solution of the present invention.
the vanadate ions are present in an amount of between about 1.0 g/l to 5.0 g/l. It has been found that the vanadate anions interact with the amine group of the amino alkyl phosphonic acids increase incorporation of the vanadate into the conversion coating thereby improving the coating performance.
the phosphonic acid groups of the corrosion inhibitor react with the magnesium metal substrate to form insoluble salts which improve corrosion performance.
the preferred chromate-free solution comprises phosphate ions in an amount of between 10 to 25 g/L, fluoride ions in an amount of between 3 g/L to 5 g/L, vanadate anions in an amount of between 1 g/L to 5 g/L, and the corrosion inhibitor in an amount of between 10 ppm to 0.5 wt%.
a magnesium or magnesium alloy substrate having a conversion coating in accordance with the present invention comprises mostly magnesium phosphate and magnesium fluoride. It is believed that the amino alkyl phosphonic acid will form insoluble magnesium salt as part of the conversion coating. This component will increase the interaction of vanadium with conversion coating, therefore increase vanadium content in the coating, should vanadium is used as corrosion inhibitor as well.

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Chemical & Material Sciences (AREA)
General Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Chemical Treatment Of Metals (AREA)
Preventing Corrosion Or Incrustation Of Metals (AREA)

EP04253681A 2003-06-20 2004-06-18 Composition et procédé pou appliquer un revêtement résistant à la corrosion et magnésium revêtu Withdrawn EP1489199A1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US10/601,247 US20040256030A1 (en)	2003-06-20	2003-06-20	Corrosion resistant, chromate-free conversion coating for magnesium alloys
US601247		2003-06-20

Publications (1)

Publication Number	Publication Date
EP1489199A1 true EP1489199A1 (fr)	2004-12-22

Family

ID=33418585

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP04253681A Withdrawn EP1489199A1 (fr)	2003-06-20	2004-06-18	Composition et procédé pou appliquer un revêtement résistant à la corrosion et magnésium revêtu

Country Status (7)

Country	Link
US (1)	US20040256030A1 (fr)
EP (1)	EP1489199A1 (fr)
JP (1)	JP2005008985A (fr)
KR (1)	KR100611288B1 (fr)
CN (1)	CN100339507C (fr)
PL (1)	PL368625A1 (fr)
SG (1)	SG117497A1 (fr)

Cited By (2)

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Publication number	Priority date	Publication date	Assignee	Title
EP1950325A3 (fr) *	2007-01-19	2010-02-03	Nihon Hyomen Kagaku Kabushiki Kaisha	Solution dépourvue de chrome pour le traitement de surfaces métalliques
TWI394863B (zh) *	2007-12-27	2013-05-01	Kansai Paint Co Ltd	金屬表面處理用組成物及從該金屬表面處理用組成物獲得之具有金屬表面處理層的表面處理金屬材

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GB0507887D0 (en) *	2005-04-20	2005-05-25	Rohm & Haas Elect Mat	Immersion method
US20090004486A1 (en)	2007-06-27	2009-01-01	Sarah Arsenault	Corrosion inhibiting additive
WO2009072905A2 (fr) *	2007-12-04	2009-06-11	Katja Products Limited	Revêtement de surface
JP4908456B2 (ja)	2008-06-02	2012-04-04	パンパシフィック・カッパー株式会社	銅の製錬方法
US20130014670A1 (en) *	2010-04-01	2013-01-17	Commissariat a I'Energie Atomique et Aux Energies Altematives	Use of anticorrosion agents for conditioning magnesium metal, conditioning material thus obtained and preparation process
JP5595874B2 (ja) *	2010-11-04	2014-09-24	三井金属鉱業株式会社	マグネシウム合金の表面処理方法
JP6089053B2 (ja) *	2015-03-16	2017-03-01	有限会社エスク	防食能を有する生分解性金属表面修飾ステント
KR102142783B1 (ko) *	2018-11-30	2020-08-07	주식회사 포스코	마그네슘 또는 마그네슘 합금 표면처리용 조성물 및 이를 이용하여 표면처리된 마그네슘 또는 마그네슘 합금
US12331408B2 (en) *	2022-03-03	2025-06-17	Nippon Steel Corporation	Surface-treated steel sheet

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2003
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- 2004-06-15 KR KR1020040043886A patent/KR100611288B1/ko not_active Expired - Fee Related
- 2004-06-18 PL PL04368625A patent/PL368625A1/xx not_active Application Discontinuation
- 2004-06-18 CN CNB2004100714667A patent/CN100339507C/zh not_active Expired - Fee Related
- 2004-06-18 EP EP04253681A patent/EP1489199A1/fr not_active Withdrawn
- 2004-06-18 JP JP2004180425A patent/JP2005008985A/ja active Pending

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CN1572904A (zh)	2005-02-02
SG117497A1 (en)	2005-12-29
US20040256030A1 (en)	2004-12-23
KR100611288B1 (ko)	2006-08-10
PL368625A1 (en)	2004-12-27
JP2005008985A (ja)	2005-01-13
KR20040110097A (ko)	2004-12-29
CN100339507C (zh)	2007-09-26

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