EP0408423A1 - Metallschützende Zusammensetzungen, ihr Herstellungsverfahren und Metallschutzverfahren - Google Patents
Metallschützende Zusammensetzungen, ihr Herstellungsverfahren und Metallschutzverfahren Download PDFInfo
- Publication number
- EP0408423A1 EP0408423A1 EP90401929A EP90401929A EP0408423A1 EP 0408423 A1 EP0408423 A1 EP 0408423A1 EP 90401929 A EP90401929 A EP 90401929A EP 90401929 A EP90401929 A EP 90401929A EP 0408423 A1 EP0408423 A1 EP 0408423A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- solution
- dicyclohexylamine
- mixture
- metals
- stearic acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 50
- 239000002184 metal Substances 0.000 title claims abstract description 33
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- 230000001681 protective effect Effects 0.000 title claims description 20
- 150000002739 metals Chemical class 0.000 claims abstract description 18
- XBPCUCUWBYBCDP-UHFFFAOYSA-N Dicyclohexylamine Chemical compound C1CCCCC1NC1CCCCC1 XBPCUCUWBYBCDP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 15
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 15
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000008117 stearic acid Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- GGZHVNZHFYCSEV-UHFFFAOYSA-N 1-Phenyl-5-mercaptotetrazole Chemical compound SC1=NN=NN1C1=CC=CC=C1 GGZHVNZHFYCSEV-UHFFFAOYSA-N 0.000 claims abstract description 9
- 150000007980 azole derivatives Chemical class 0.000 claims abstract description 7
- 238000005260 corrosion Methods 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 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
Definitions
- the present invention relates to compositions for protecting metals as well as to a process for the manufacture of said compositions, and to a process for protecting metals.
- Some of these products contain chromic acid. This compound, which is suitable for cleaning metal surfaces, however has only limited effectiveness in protecting them against oxidation.
- the object of the present invention is therefore to provide a new composition for protecting metals which is more effective than the known compositions, and non-toxic since it does not require the use of an organic solvent.
- the present invention relates to protective compositions for metals, characterized in that they contain a mixture consisting of stearic acid, dicyclohexylamine, and an azole derivative endowed with anticorrosive properties.
- the protective compositions for metals in accordance with the present invention contain a mixture comprising from 0.8 to 1.5 g / l of an appropriate azole derivative, endowed with anti-corrosion properties, and from 0.005 to 0.01 g / l of a stearic acid: dicyclohexylamine mixture in a 1: 1 molar ratio, in solution in water
- said composition contains a mixture consisting of 0.8 to 1.5 g / l of 1-phenyl-5-mercaptotetrazole, and 0.005 to 0.01 g / l of an acid mixture stearic: dicyclohexylamine in a 1: 1 molar ratio, in solution in water.
- the present invention further relates to a process for the preparation of a protective composition for metals, characterized in that a solution of an appropriate azole derivative, endowed with anti-corrosive properties, is prepared in water , at a concentration of 0.8 to 1.5 g / l and adding to this solution 0.005 to 0.01 g / l of an equimolar mixture of stearic acid and dicyclohexylamine.
- a solution of 1-phenyl-5-mercaptotetrazole in water is prepared, at a concentration of 0.8 to 1.5 g / l and in that 0.005 to 0.01 g / l of an equimolar mixture of stearic acid and dicyclohexylamine are added to this solution.
- the present invention further relates to a method for protecting a metal surface, characterized in that said metal surface is brought into contact with a protective composition according to the present invention, then rinsed with water.
- the metal surface to be protected is immersed in the protective composition.
- the protective composition is sprayed onto the metal surface to be protected.
- a stearic acid: dicyclohexylamine mixture is carried out in the molar ratio 1: 1. The mixture is brought to 70 ° C., then cooled to room temperature. 0.005 g of this powdered mixture are dissolved, with stirring, in a liter of 1-phenyl-5-mecaptotetrazole solution.
- Example 2 The operation is carried out according to the method described in Example 1, using a 1.5 g / l solution of 1-phenyl-5-mercaptotetrazole, to which 0.008 g / l of the stearic acid: dicyclohexylamine mixture is added.
- Example 2 The operation is carried out according to the method described in Example 1, using a 0.8 g / l solution of 1-phenyl-5-mercaptotetrazole, to which 0.006 g / l of the stearic acid: dicyclohexylamine mixture is added.
- Example 2 The operation is carried out according to the method described in Example 1, using a solution of 1.2 g / l of 1-phenyl-5-mercaptotetrazole, to which 0.01 g / l of the stearic acid: dicyclohexylamine mixture is added.
- the metal surface to be treated is pickled, if necessary, by a treatment with chromic acid, followed by a treatment with concentrated NH3, then rinsed with tap water and distilled water.
- the surface to be treated is immersed in the protective composition prepared according to one of examples 1 to 4, maintained at a temperature of 30 to 40 ° C, for a period of 3 to 5 minutes, then rinsed twice with distilled water .
- the first rinse is carried out at room temperature, the second rinse at a temperature of 50 to 60 ° C. the metal surface is then dried at a temperature of about 60 to 70 ° C.
- a protective composition prepared according to one of examples 1 to 4 is sprayed onto the surface to be protected and left in contact with it for 3 to 5 minutes.
- the surface thus treated is rinsed and dried as described in the previous example.
- One liter of protective solution makes it possible to treat, by one or other of the methods given as an example, a metal surface of 40 to 70 dm2.
- an untreated silver object changes color after 2 minutes, while the treated object retains its color for 60 minutes.
- An untreated copper plate completely changes color after one minute, while a treated copper plate begins to change color after 132 minutes.
- An object in 18 carat gold changes color after 60 minutes without treatment, and 230 minutes after treatment.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Paints Or Removers (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8909378A FR2649725B1 (fr) | 1989-07-12 | 1989-07-12 | Composition protectrice des metaux, son procede de preparation, et procedes de protection des metaux |
FR8909378 | 1989-07-12 | ||
FR9005670 | 1990-05-04 | ||
FR9005670A FR2661690A1 (fr) | 1989-07-12 | 1990-05-04 | Compositions protectrices des metaux, leur procede de preparation, et leurs procedes de protection des metaux. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0408423A1 true EP0408423A1 (de) | 1991-01-16 |
EP0408423B1 EP0408423B1 (de) | 1994-09-21 |
Family
ID=26227469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90401929A Expired - Lifetime EP0408423B1 (de) | 1989-07-12 | 1990-07-04 | Metallschützende Zusammensetzungen, ihr Herstellungsverfahren und Metallschutzverfahren |
Country Status (10)
Country | Link |
---|---|
US (1) | US5156892A (de) |
EP (1) | EP0408423B1 (de) |
JP (1) | JP2835158B2 (de) |
AT (1) | ATE111973T1 (de) |
DE (1) | DE69012687T2 (de) |
DK (1) | DK0408423T3 (de) |
ES (1) | ES2063308T3 (de) |
FR (1) | FR2661690A1 (de) |
IE (1) | IE65532B1 (de) |
PT (1) | PT94667B (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5378798A (en) * | 1992-07-10 | 1995-01-03 | Shell Oil Company | Composition and process for coating metallic substrates |
EP0636937B1 (de) | 1993-07-28 | 2000-10-04 | Chugai Photo Chemical Co. Ltd. | Zusammensetzung enthaltend eine Farbentwicklersubstanz, Farbentwickler zur Verarbeitung von photographischen Silberhalogenidfarbmaterialien und deren Verwendung |
US20050145311A1 (en) * | 2003-12-30 | 2005-07-07 | Walker Elizabeth L. | Method for monitoring surface treatment of copper containing devices |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3341461A (en) * | 1964-07-24 | 1967-09-12 | C J Webb Inc | Composition for protecting metals against corrosion |
US3382087A (en) * | 1964-08-20 | 1968-05-07 | Pittsburgh Plate Glass Co | Silver and copper coated articles protected by treatment with aminoazole compounds |
GB1183399A (en) * | 1966-10-07 | 1970-03-04 | Hoechst Ag | Liquid Fuels |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3015580A (en) * | 1948-08-30 | 1962-01-02 | William A Zisman | Method of protecting a metal surface with a coating of primary-n-octa-decylamine andarticle produced thereby |
DE1301475C2 (de) * | 1965-10-02 | 1973-07-12 | Bayer Ag | Verfahren zur Erhoehung der Haftfestigkeit zwischen Gummi und Textilien |
US3573225A (en) * | 1968-02-01 | 1971-03-30 | Masahiko Kondo | Rust-proofing composite solutions |
US3625859A (en) * | 1968-08-06 | 1971-12-07 | San Abbott Ltd | Corrosion inhibiting composition |
JPS5013751Y1 (de) * | 1970-11-11 | 1975-04-26 | ||
JPS5013750U (de) * | 1973-06-06 | 1975-02-13 | ||
JPS5013753A (de) * | 1973-06-11 | 1975-02-13 | ||
JPS604565B2 (ja) * | 1974-11-21 | 1985-02-05 | 富士写真フイルム株式会社 | 耐食性強磁性金属粉末 |
US4051066A (en) * | 1975-01-13 | 1977-09-27 | Northern Instruments Corporation | Corrosion-inhibiting rubber and methods of preparation |
US4233176A (en) * | 1979-05-09 | 1980-11-11 | Conner Alvin James Sen | Non-petroleum based metal corrosion inhibitor |
US4957640A (en) * | 1985-10-15 | 1990-09-18 | The Dow Chemical Company | Corrosion prevention with compositions prepared from organic fatty amines and nitrogen-containing aromatic heterocyclic compounds |
US4705703A (en) * | 1986-06-30 | 1987-11-10 | Nalco Chemical Company | Method of preventing corrosion of uncoated aluminum sheet or beverage cans in a brewery pasteurizer water system |
GB2206129B (en) * | 1987-06-23 | 1991-10-16 | Glaverbel | Decorative mirror and process of manufacturing same |
JPS6473092A (en) * | 1987-09-16 | 1989-03-17 | Daiwa Kasei Kenkyusho | Production of rust-preventive agent for metal |
-
1990
- 1990-05-04 FR FR9005670A patent/FR2661690A1/fr active Pending
- 1990-07-04 ES ES90401929T patent/ES2063308T3/es not_active Expired - Lifetime
- 1990-07-04 EP EP90401929A patent/EP0408423B1/de not_active Expired - Lifetime
- 1990-07-04 DK DK90401929.6T patent/DK0408423T3/da active
- 1990-07-04 DE DE69012687T patent/DE69012687T2/de not_active Expired - Fee Related
- 1990-07-04 AT AT90401929T patent/ATE111973T1/de not_active IP Right Cessation
- 1990-07-06 US US07/554,691 patent/US5156892A/en not_active Expired - Fee Related
- 1990-07-11 PT PT94667A patent/PT94667B/pt not_active IP Right Cessation
- 1990-07-11 IE IE252790A patent/IE65532B1/en not_active IP Right Cessation
- 1990-07-12 JP JP2185168A patent/JP2835158B2/ja not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3341461A (en) * | 1964-07-24 | 1967-09-12 | C J Webb Inc | Composition for protecting metals against corrosion |
US3382087A (en) * | 1964-08-20 | 1968-05-07 | Pittsburgh Plate Glass Co | Silver and copper coated articles protected by treatment with aminoazole compounds |
GB1183399A (en) * | 1966-10-07 | 1970-03-04 | Hoechst Ag | Liquid Fuels |
Non-Patent Citations (3)
Title |
---|
CHEMICAL ABSTRACTS, vol. 86, no. 20, 16 mai 1977, page 101, résumé no. 141827n, Columbus, Ohio, US; & CZ-A-165 655 (P. MITYSKA et al.) 15-11-1976 * |
CHEMICAL ABSTRACTS, vol. 97, no. 6, 9 août 1982, page 484, résumé no. 46455h, Columbus, Ohio, US; A. RAUSCHER et al.: "Inhibitive effect of some heterocyclic mercaptan derivatives and their relation to parameters describing chemical structure", & KORROZ. FIGY. 1982, 22(2), 27-32 * |
WERKSTOFFE & KORROSION/MATERIALS & CORROSION, vol. 38, no. 11, novembre 1987, pages 649-659, VCH Verlagsgesellschaft mbH, Weinheim, DE; J. PENNINGER et al.: "Molecular structure and efficiency of triazole derivates and other heterocyclics as corrosion inhibitors for copper" * |
Also Published As
Publication number | Publication date |
---|---|
PT94667B (pt) | 1997-02-28 |
JP2835158B2 (ja) | 1998-12-14 |
FR2661690A1 (fr) | 1991-11-08 |
EP0408423B1 (de) | 1994-09-21 |
FR2661690A3 (de) | 1991-11-08 |
US5156892A (en) | 1992-10-20 |
JPH03130383A (ja) | 1991-06-04 |
IE65532B1 (en) | 1995-11-01 |
ES2063308T3 (es) | 1995-01-01 |
DE69012687D1 (de) | 1994-10-27 |
DE69012687T2 (de) | 1995-03-23 |
PT94667A (pt) | 1991-03-20 |
IE902527A1 (en) | 1991-02-13 |
DK0408423T3 (da) | 1995-01-16 |
ATE111973T1 (de) | 1994-10-15 |
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