EP0408423A1 - Metallschützende Zusammensetzungen, ihr Herstellungsverfahren und Metallschutzverfahren - Google Patents

Metallschützende Zusammensetzungen, ihr Herstellungsverfahren und Metallschutzverfahren Download PDF

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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
Application number
EP90401929A
Other languages
English (en)
French (fr)
Other versions
EP0408423B1 (de
Inventor
Gérard Lapluye
Bo Tao Fan
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.)
Lapluye Gerard
Original Assignee
Lapluye Gerard
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
Priority claimed from FR8909378A external-priority patent/FR2649725B1/fr
Application filed by Lapluye Gerard filed Critical Lapluye Gerard
Publication of EP0408423A1 publication Critical patent/EP0408423A1/de
Application granted granted Critical
Publication of EP0408423B1 publication Critical patent/EP0408423B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
EP90401929A 1989-07-12 1990-07-04 Metallschützende Zusammensetzungen, ihr Herstellungsverfahren und Metallschutzverfahren Expired - Lifetime EP0408423B1 (de)

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
FR9005670A FR2661690A1 (fr) 1989-07-12 1990-05-04 Compositions protectrices des metaux, leur procede de preparation, et leurs procedes de protection des metaux.
FR9005670 1990-05-04

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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
EP0408423B1 (de) 1994-09-21
FR2661690A3 (de) 1991-11-08
US5156892A (en) 1992-10-20
IE65532B1 (en) 1995-11-01
PT94667B (pt) 1997-02-28
DE69012687T2 (de) 1995-03-23
ES2063308T3 (es) 1995-01-01
ATE111973T1 (de) 1994-10-15
PT94667A (pt) 1991-03-20
FR2661690A1 (fr) 1991-11-08
IE902527A1 (en) 1991-02-13
JP2835158B2 (ja) 1998-12-14
JPH03130383A (ja) 1991-06-04
DK0408423T3 (da) 1995-01-16
DE69012687D1 (de) 1994-10-27

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