EP0710733B1 - Mischung zur Korrosionshemmung von Metallen - Google Patents
Mischung zur Korrosionshemmung von Metallen Download PDFInfo
- Publication number
- EP0710733B1 EP0710733B1 EP95116654A EP95116654A EP0710733B1 EP 0710733 B1 EP0710733 B1 EP 0710733B1 EP 95116654 A EP95116654 A EP 95116654A EP 95116654 A EP95116654 A EP 95116654A EP 0710733 B1 EP0710733 B1 EP 0710733B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- parts
- acid
- benzotriazole
- gew
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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
-
- 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 invention relates to the use of mixtures of polyamino acids and usual corrosion inhibitors for corrosion inhibition of metals.
- organic compounds as metal passivators for example for copper or brass, in functional media such as hydraulic Liquids or in anti-freeze solutions for surface protection against corrosion can be used.
- Known connections for this include, for example Benzimidazole, Benzothiazole and Benzotriazole Derivatives.
- Metal passivators are particularly advantageous for such functional media, which have a high solubility so that they are in the media in which they are used can be distributed quickly and well and thus an optimal Ensure protection for the metal objects.
- polyaspartic acid acts as a corrosion inhibitor is especially effective for brass.
- EP-A 672 625 Mixtures of polyaspartic acid and phosphonic acids or phosphonates known. These mixtures can also contain azoles (e.g. tolyl or benzotriazole) contain. You can use sequestrants or as a limescale blocker Corrosion inhibitors are used.
- Detergents for dishwashers are known from the older EP-A 651 052, which according to Example 1 also polyaspartic acid and very small amounts of benzotriazole can contain.
- the older EP-A 700 987 describes a method for inhibiting corrosion of Ferrous metals with polyamino acids, e.g. Polyaspartic acids, e.g. Polyaspartic acid known.
- polyamino acids e.g. Polyaspartic acids
- polyaspartic acid e.g. Polyaspartic acid known.
- metal deactivators such as benzotriazole or tolyltriazole is mentioned; However, quantities are missing.
- DE-OS 42 44 031 relates to a process for the production and use of polyaspartic acid and its salts, inter alia as corrosion inhibitors for brass. Surprisingly, it has now been found that poly-C 4 -C 5 amino acids in combination with conventional corrosion inhibitors further improve their action.
- the weight ratio A / B is preferably 4: 1 to 1: 4.
- Preferred polyamino acids A include especially polyaspartic acid and polyglutamic acid as well as the salts of these acids and their anhydrides, e.g. Polysuccinimide.
- Preferred salts are the sodium and potassium salts.
- This maleic acid monoammonium salt can preferably be in at 150 to 180 ° C. a reactor with a residence time of 5 to 300 minutes of a thermal, optionally subjected to continuous polymerization and the obtained Polysuccinimide by hydrolysis to polyaspartic acid or a salt of which are implemented.
- the "other" recurring units can be in quantities up to 100% by weight, based on the sum a + b, contained in the polyasperic acid be.
- Preferred polyamic acids A have as weight average by gel permeation chromatography (calibrated with polystyrene) certain molecular weights of 500 up to 10,000, preferably 1,000 to 5,000, in particular 2,000 to 4,000.
- Corrosion inhibitors B are benzotriazole, 4- and 5-C 1 -C 4 -alkylbenztriazoles such as 4-methylbenztriazole, 5-methylbenztriazole and the mixtures of these isomers, 4-butylbenztriazole. Particularly preferred corrosion inhibitors B are benzotriazole, 4- and 5-methylbenztriazole.
- the components of the mixtures to be used according to the invention can the medium in which they are supposed to work, individually or mixed, solid or dissolved or dispersed in a liquid, preferably water.
- the amount of the mixture to be used can be 0.1 mg to 10 g, preferably 1 mg to 0.1 g, each per kg of the medium in which they are supposed to act.
- the mixtures used or their aqueous solutions can each If necessary, additional aids can be added that reflect their performance properties increase. This can, for example, improve wetting Suppressed growth of microorganisms (addition of microbicides) or the Failure of precipitation of substances in the aqueous substances are solved, prevented.
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)
- Compositions Of Macromolecular Compounds (AREA)
- Paints Or Removers (AREA)
- Detergent Compositions (AREA)
Description
- 15 Gew.-Teilen Zitronensäure,
- 4 Gew.-Teilen Natriumcitrat,
- 13 Gew.-Teilen wasserfreiem Natriumsilicat,
- 9 Gew.-Teilen wasserfreiem Natriumcarbonat,
- 5 Gew.-Teilen Polyasparaginsäure,
- 3 Gew.-Teilen agglomerisierter Teilchen, die 32Gew.-% Silikat, 10 Gew.-% C12-C15-Alkylethoxysulfat (Ethoxylierungsgrad 3), 10 Gew.-% Natriumcarbonat, 36 Gew.-% Natriumsulfat und als Rest Wasser und Verschiedenes enthalten,
- 8 Gew.-Teilen wasserfreiem Natriumpercarbonat,
- 1,6 Gew.-Teilen Protease,
- 1,5 Gew.-Teilen Amylase,
- 1,5 Gew.-Teilen Lipase,
- 3,8 Gew.-Teilen Tetracetyl-ethylendiamin,
- 0,5 Gew.-Teilen Paraffin,
- 0,3 Gew.-Teilen Benztriazol und
- 0,13 Gew.-Teilen Diethylentriamin-pentamethylen-phosphonsäure
- m =
- Massenverlust der Metallprobe ohne Inhibitor (Blindprobe) und
- m1 =
- Massenverlust der Metallprobe mit Inhibitor
Polyasparaginsäure Na-Salz | Tolyltriazol | % Schutzwirkung |
10 mg/l | - | 46,2 |
- | 1 mg/l | 64,6 |
10 mg/l | 1 mg/l | 80,5 |
Polyasparaginsäure Na-Salz | Tolyltriazol | % Schutzwirkung |
25 mg/l | - | 0 |
- | 2 mg/l | 53 |
10 mg/l | 2 mg/l | 79,4 |
Claims (3)
- Verwendung vonA. Poly-C4-C5-aminosäure undB. Korrosionsinhibitor aus der Reihe Benztriazol, 4-C1-C4-Alkylbenztriazol, 5-C1-C4-Alkylbenztriazol
dadurch gekennzeichnet, daß das Gewichtsverhältnis A/B 99:1 bis 1:99 beträgt mit der Maßgabe, daß bei der Verwendung in Geschirrspülem die Verwendung einer Mischung aus15 Gew.-Teilen Zitronensäure,4 Gew.-Teilen Natriumcitrat,13 Gew.-Teilen wasserfreiem Natriumsilicat,9 Gew.-Teilen wasserfreiem Natriumcarbonat,5 Gew.-Teilen Polyasparaginsäure,3 Gew.-Teilen agglomerisierter Teilchen, die 32 Gew.-% Silikat, 10 Gew.-% C12-C15-Alkylethoxysulfat (Ethoxylierungsgrad 3), 10 Gew.-% Natriumcarbonat, 36 Gew.-% Natriumsulfat und als Rest Wasser und Verschiedenes enthalten,8 Gew.-Teilen wasserfreiem Natriumpercarbonat,1,6 Gew.-Teilen Protease,1,5 Gew.-Teilen Amylase,1,5 Gew.-Teilen Lipase,3,8 Gew.-Teilen Tetracetyl-ethylendiamin,0,5 Gew.-Teilen Paraffin,0,3 Gew.-Teilen Benztriazol und0,13 Gew.-Teilen Diethylentriamin-pentamethylen-phosphonsäure - Verwendung nach Anspruch 1, wonach das Gewichtsverhältnis A/B 4:1 bis 1:4 beträgt.
- Verwendung nach Ansprüchen 1 und 2, wobei die Komponente A aus der Reihe Polyasparaginsäure, Polyglutaminsäure, Salze dieser Säuren, Polysuccinimid ausgewählt ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4439193A DE4439193A1 (de) | 1994-11-03 | 1994-11-03 | Mischung zur Korrosionshemmung von Metallen |
DE4439193 | 1994-11-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0710733A1 EP0710733A1 (de) | 1996-05-08 |
EP0710733B1 true EP0710733B1 (de) | 1999-06-16 |
Family
ID=6532348
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95116654A Expired - Lifetime EP0710733B1 (de) | 1994-11-03 | 1995-10-23 | Mischung zur Korrosionshemmung von Metallen |
Country Status (5)
Country | Link |
---|---|
US (1) | US5785896A (de) |
EP (1) | EP0710733B1 (de) |
JP (1) | JPH08225969A (de) |
DE (2) | DE4439193A1 (de) |
ES (1) | ES2133645T3 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19721346A1 (de) * | 1997-05-22 | 1998-11-26 | Henkel Kgaa | Verwendung von Asparaginsäure-haltigen Polymeren zusammen mit Hydroxycarbonsäuren zur Korrosionsinhibierung in Kühlkreisläufen |
AT408103B (de) * | 1998-06-24 | 2001-09-25 | Aware Chemicals Llc | Verfahren zur vorbehandlung eines metallischen werkstückes für eine lackierung |
US6585933B1 (en) | 1999-05-03 | 2003-07-01 | Betzdearborn, Inc. | Method and composition for inhibiting corrosion in aqueous systems |
JP3952410B2 (ja) * | 2004-02-10 | 2007-08-01 | タムラ化研株式会社 | 金属の表面処理剤、プリント回路基板およびプリント回路基板の金属の表面処理方法 |
US20080096784A1 (en) * | 2006-05-15 | 2008-04-24 | Voco Gmbh | Composition for Cleaning Dental Instruments and Process |
JP5464809B2 (ja) * | 2008-02-29 | 2014-04-09 | 横浜油脂工業株式会社 | 塗膜用水系剥離剤および塗膜剥離方法 |
US9290850B2 (en) | 2013-10-31 | 2016-03-22 | U.S. Water Services Inc. | Corrosion inhibiting methods |
CN103666738B (zh) * | 2013-12-06 | 2014-11-26 | 华阳新兴科技(天津)集团有限公司 | 一种环保型液压支架防冻液及其制备方法 |
US9688605B2 (en) | 2013-12-10 | 2017-06-27 | The Lubrizol Corporation | Organic salts of glyceride-cyclic carboxylic acid anhydride adducts as corrosion inhibitors |
EP3374440B1 (de) | 2015-11-09 | 2023-06-21 | The Lubrizol Corporation | Beschichtunszusammensetzung enthaltend quaternäre aminadditive und deren verwendung |
CN109715766B (zh) | 2016-07-20 | 2022-06-28 | 路博润公司 | 用于润滑剂中的烷基磷酸酯胺盐 |
EP3487966B1 (de) | 2016-07-20 | 2022-10-26 | The Lubrizol Corporation | Alkylphosphataminsalze in schmierstoffen |
CA3037497A1 (en) | 2016-09-21 | 2018-03-29 | The Lubrizol Corporation | Fluorinated polyacrylate antifoam components for lubricating compositions |
BR112019005332A2 (pt) | 2016-09-21 | 2019-06-11 | Lubrizol Corp | componentes antiespumantes de poliacrilato para uso em combustíveis de diesel |
WO2019183365A1 (en) | 2018-03-21 | 2019-09-26 | The Lubrizol Corporation | NOVEL FLUORINATED POLYACRYLATES ANTIFOAMS IN ULTRA-LOW VISCOSITY (<5 CST) finished fluids |
KR20220149549A (ko) | 2020-03-12 | 2022-11-08 | 더루브리졸코오퍼레이션 | 오일-기반 부식 저해제 |
CN113999592A (zh) * | 2021-11-29 | 2022-02-01 | 国网山东省电力公司电力科学研究院 | 一种水性环氧带锈防腐涂料、制备方法及其应用 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0700987A2 (de) * | 1994-09-12 | 1996-03-13 | Rohm And Haas Company | Verfahren zur Korrosionsinhibierung in wässrigen Systemen |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2618606A (en) * | 1949-02-04 | 1952-11-18 | Procter & Gamble | Detergent compositions containing metal discoloration inhibitors |
GB1061904A (en) * | 1963-01-22 | 1967-03-15 | Castrol Ltd | Improvements in or relating to compositions containing metal deactivators |
GB1347008A (en) * | 1970-11-13 | 1974-02-13 | Ciba Geigy Uk Ltd | Detergent compositions |
US3933531A (en) * | 1972-04-11 | 1976-01-20 | Natsuo Sawa | Method of rust-preventing for copper and copper alloy |
US4522785A (en) * | 1982-11-04 | 1985-06-11 | The Sherwin-Williams Company | Dialkylaminomethyl aromatic triazoles as corrosion inhibitors |
US4595523A (en) * | 1983-07-01 | 1986-06-17 | Petrolite Corporation | Corrosion inhibition in engine fuel systems |
JPS60251288A (ja) * | 1984-05-25 | 1985-12-11 | Otsuka Chem Co Ltd | 揮散性非鉄金属用防錆剤組成物 |
DE3626672A1 (de) * | 1986-08-07 | 1988-02-11 | Bayer Ag | Polyasparaginamidsaeure |
JP2625700B2 (ja) * | 1987-02-14 | 1997-07-02 | 三菱化学株式会社 | ポリアミノ酸ウレタン樹脂組成物 |
US4994197A (en) * | 1989-12-18 | 1991-02-19 | Mobil Oil Corporation | Triazole compositions as fuel and lube additives |
US5434265A (en) * | 1992-12-22 | 1995-07-18 | Eli Lilly And Company | Inhibitors of HIV protease |
DE4244031A1 (de) * | 1992-12-24 | 1994-06-30 | Bayer Ag | Verfahren zur Herstellung und Verwendung von Polyasparaginsäure und ihrer Salze |
DE4305368A1 (de) * | 1993-02-22 | 1994-08-25 | Bayer Ag | Verfahren zur Herstellung von Polyasparaginsäure und ihrer Salze |
US5362411A (en) * | 1993-05-10 | 1994-11-08 | Mobil Oil Corporation | Antirust/dispersant additive for lubricants |
ES2121955T3 (es) * | 1993-11-03 | 1998-12-16 | Procter & Gamble | Composiciones detergentes para lavavajillas. |
DE4408478A1 (de) * | 1994-03-14 | 1995-09-21 | Bayer Ag | Mittel zur Wasserbehandlung |
-
1994
- 1994-11-03 DE DE4439193A patent/DE4439193A1/de not_active Withdrawn
-
1995
- 1995-10-23 ES ES95116654T patent/ES2133645T3/es not_active Expired - Lifetime
- 1995-10-23 EP EP95116654A patent/EP0710733B1/de not_active Expired - Lifetime
- 1995-10-23 DE DE59506222T patent/DE59506222D1/de not_active Expired - Fee Related
- 1995-10-26 JP JP7300446A patent/JPH08225969A/ja active Pending
- 1995-10-31 US US08/551,187 patent/US5785896A/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0700987A2 (de) * | 1994-09-12 | 1996-03-13 | Rohm And Haas Company | Verfahren zur Korrosionsinhibierung in wässrigen Systemen |
Also Published As
Publication number | Publication date |
---|---|
DE59506222D1 (de) | 1999-07-22 |
ES2133645T3 (es) | 1999-09-16 |
DE4439193A1 (de) | 1996-05-09 |
EP0710733A1 (de) | 1996-05-08 |
JPH08225969A (ja) | 1996-09-03 |
US5785896A (en) | 1998-07-28 |
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