WO1995002077A1 - Composition and process for treating tinplate and aluminum - Google Patents
Composition and process for treating tinplate and aluminum Download PDFInfo
- Publication number
- WO1995002077A1 WO1995002077A1 PCT/US1994/007298 US9407298W WO9502077A1 WO 1995002077 A1 WO1995002077 A1 WO 1995002077A1 US 9407298 W US9407298 W US 9407298W WO 9502077 A1 WO9502077 A1 WO 9502077A1
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- WO
- WIPO (PCT)
- Prior art keywords
- ppm
- cans
- component
- aluminum
- aqueous liquid
- Prior art date
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Classifications
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- 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
- C23C22/361—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 containing titanium, zirconium or hafnium compounds
Definitions
- the invention relates to a novel composition, usually called a "bath” here ⁇ inafter for brevity, and process that can be used to treat the surface of both alum ⁇ inum DI cans and tinplate DI cans and that impart an excellent corrosion resist- ance and paint adherence to the surface of these cans prior to painting and/or printing them.
- aluminum DI cans and “tinplate DI cans” refer to cans fabricated by the drawing and ironing, also called draw-ironing, of aluminum sheet and tin- plated steel sheet respectively.
- Aluminum DI cans and tinplate DI cans have heretofore been treated with separate special purpose surface treatment baths.
- Baths for treating the surface of aluminum DI cans are exemplified by the bath taught in Japanese Laid Open [Kokai or Unexamined] Patent Application Number Sho 52-131937 [131,937/ 1977].
- the surface treatment bath taught therein is an acidic aqueous coating solution that has a pH of approximately 1.0 to 4.0 and that contains phosphate, fluoride, and zirconium and/or titanium. Treatment with this conversion treatment bath results in the formation of a highly paint-adherent, highly corrosion-resistant conversion film on the aluminum surface.
- the main components of this film are phosphate salt and zirconium oxide or titanium oxide.
- Baths for treating the surface of tinplate DI cans are exemplified by the bath taught in Japanese Laid Open Patent Application Number Hei 1-100281 [100,281/1989].
- This invention comprises a conversion film-forming bath for the treatment of metal surfaces.
- the bath in this case has a pH of 2 to 6 and con ⁇ tains 1 to 50 g/L of phosphate ions, 0.2 to 20.0 g/L of oxyacid ions, 0.01 to 5.0 g/L of tin ions, and 0.01 to 5.0 g/L of condensed phosphate ions.
- Treatment with this conversion treatment bath results in the formation of a highly corrosion-re ⁇ sistant film on the surface of tinplate DI cans.
- the main component of this film is tin phosphate.
- a device known as a washer is generally used to treat the surface of DI cans.
- the formed DI cans are continuously treated with a degreasing composi ⁇ tion and a conversion coating composition while turned upside down.
- Washers currently in use most often execute the following 6 processes: preliminary de ⁇ greasing, degreasing, water wash, surface treatment, water wash, and a wash with de-ionized water.
- a treatment bath in accordance with, for example, the invention in Japanese Laid Open Patent Application Number Sho 52-131937 would be used as the surface treatment bath for aluminum DI cans
- a treat ⁇ ment bath in accordance with, for example, Japanese Laid Open Patent Applica ⁇ tion Number Hei 1-100281 would be used as the treatment bath for tinplate DI cans. Disclosure of the Invention Problems to Be Solved bv the Invention
- this invention takes as its object the provision of a multipurpose treatment bath and treatment process wherein a single treatment bath can be used to lay down a highly corrosion-re ⁇ sistant, highly paint-adherent film on the surface of both aluminum DI cans and tinplate DI cans.
- Tin ions Sn 2+ , Sn 4+ elute from the surface of tinplate DI cans under the conditions noted in item (2).
- the divalent tin ions that have eluted into the treatment bath tend to be re ⁇ cuted to tin metal at the aluminum surface; this prevents the formation of a high-quality film on the aluminum surface.
- an oxidizing ag ⁇ ent is preferably added to the treatment bath in order to rapidly oxidize the tin ions in the treatment bath to the tetravalent state and thereby achieve their stable presence in the bath.
- Aluminum ions elute from the aluminum surface under the conditions not ⁇ ed in item (2), and these aluminum ions destabilize any zirconium or titani ⁇ um compounds present in the bath.
- fluoride or hydro- fluoric acid preferably is added to the treatment bath in order to stabilize the presence of aluminum in the treatment bath by forming fluoride com ⁇ plexes with the aluminum ions.
- the oxidizing agent accelerates the formation of zirconium oxide or titanium oxide on an aluminum surface, it tends to inhibit the formation of a protective coating including tin phosphate on a tin surface.
- ppm parts per million by weight
- the appropri ⁇ ate upper limit on the oxidizing agent is 500 ppm.
- Excessive levels of hy ⁇ drofluoric acid or fluoride result in an excessive etch, which degrades the appearance, and a suitable upper limit on this additive is 2,000 ppm as fluorine. Accordingly, a composition according to the invention for the treatment of
- DI cans contains phosphate ion and at least 1 selection from zirconium com ⁇ pounds and titanium compounds and has a pH of 2.0 to 4.0, contains oxidizing agent at no more than 500 ppm and at least 1 selection from simple and complex fluorides and their corresponding acids in a total amount that is no more than 2,000 ppm stoichiometric equivalent as fluorine.
- a composition according to the invention consists essentially of water, the other ingredients not ⁇ ed above, and, if desired, the optional ingredient(s) noted below, and still more preferably consists only of these ingredients plus any necessary counterions to provide electrical neutrality to the composition and possible impurities in the de- sired ingredients.
- Another embodiment of the invention is a process for treating the surface of aluminum DI cans and tinplate DI cans, said process being characterized by contacting the cleaned surface of aluminum DI cans or tinplate DI cans with the treatment bath described above.
- the oxidizing agent in a composition according to the invention is exempli ⁇ fied by hydrogen peroxide, chlorates, nitrites, tungstates, molybdates, and the like, and thus is not narrowly restricted in scope.
- hydrogen peroxide is preferred.
- the oxidizing agent functions to stabilize the tin ion eluted from the DI cans, its optimal content is a function of the amount of tin elution.
- An oxidizing agent content in the range of 20 to 500 ppm is preferred for eluted tin concentrations on the level of 50 ppm, while the range of 40 to 200 ppm for the oxidizing agent is particularly preferred under most conditions of operation of a process according to this invention.
- the oxidizing power may be mea ⁇ sured by comparing the electrical potential of an inert electrode such as a platin ⁇ um electrode that is immersed in the composition, and adjusting the amount of other oxidizing agents so that the same electrical potential is produced in the treatment composition according to the invention as with the specified amounts of hydrogen peroxide.
- An organic acid that can readily form complexes with dissolved tin ions, aluminum ions, or both, for example, gluconic acid or oxalic acid, may be added on a supplementary basis in the event of a major decline in treatment bath stabi ⁇ lity due to metal ions, for example, iron or tin ions eluting from tinplate DI cans, aluminum eluting from aluminum DI cans, and the like.
- the treatment bath must contain at least 1 selection from simple and com ⁇ plex fluorides and their corresponding acids.
- the fluoride content preferably is derived from hydrofluoric acid (HF) or a salt thereof such as sodium fluoride (NaF), or through the use of fluozirconic acid (HjZrF,,) or fluotitanic acid (H 2 TiF 6 ) or their salts.
- HF hydrofluoric acid
- NaF sodium fluoride
- HjZrF,, fluozirconic acid
- H 2 TiF 6 fluotitanic acid
- the optimal fluoride content is determined as a function of the con ⁇ centration of aluminum that elutes from the aluminum DI cans. For example, 100 ppm aluminum preferably requires approximately 200 ppm fluorine.
- the fluoride content preferably falls in the range of 10 to 2,000 ppm as fluorine and more preferably, with increasing preference in the order given, falls in the range of 20 to 900, 40 to 500, 60 to 200, or 90 to 165, ppm as fluorine.
- the fluoride content falls below 10 ppm as fluorine, the treatment bath becomes poorly react ⁇ ive with the surface of aluminum DI cans and an acceptable film is not usually produced.
- the other components used in the invention treatment bath correspond to those used in conventional treatment baths.
- phosphoric acid H 3 P0 4
- sodium phosphate Na 3 P0 4
- condensed phosphoric acids such as pyrophosphoric acid (H 4 P 2 0 7 ) and tripolyphosphohc acid (H 5 P 3 O 10 ) and their salts can also be used.
- the phosphate ion content is not narrowly re ⁇ stricted, values in the range of 10 to 500 ppm are preferred and values in the range of 20 to 90 ppm are more preferred. In determining these values, the stoi- chiometric equivalent as phosphate of all phosphoric acid(s) and anions formed by ionization thereof is considered to be phosphate.
- the source of the zirconium and titanium compounds for the treatment bath is not narrowly restricted in scope, and the oxides, hydroxides, fluorides, and the like of zirconium and titanium can all be used, as can fluozirconic and flu- otitanic acids and their salts, these acids and their salts being preferred.
- the content of zirconium or titanium compound is preferably 10 to 200 ppm as Zr or Ti and more preferably, with increasing preference in the order given, 10 to 150, 20 to 100, or 25 to 90, ppm as Zr or Ti.
- the pH of the treatment bath can be adjusted through the use of an acid such as phosphoric acid, nitric acid, hydrochloric acid, or hydrofluoric acid, or through the use of an alkali such as sodium hydroxide, sodium carbonate, or am ⁇ monium hydroxide.
- the pH of the treatment bath normally should be from 2.0 to 4.0, while the range of 2.5 to 3.3 is preferred.
- the technique for contacting the surface treatment bath with aluminum DI cans or tinplate DI cans is exemplified by immersion, spraying, and the like as generally known in the art, with spraying being the preferred technique.
- the tem ⁇ perature of the treatment bath should usually be 20 to 65 ° C and is preferably 25 to 65, more preferably 30 to 60, or still more preferably 30 to 35, ° C.
- the treatment time usually is from 2 to 120 seconds, preferably from 2 to 60 seconds, and particularly preferably from 15 to 60 seconds.
- a treatment time below 2 sec ⁇ onds does not usually produce an adequate reaction, thereby essentially preclud ⁇ ing the formation of a highly corrosion-resistant film, while the improvement in performance diminishes at treatment times in excess of 60 seconds.
- the treatment bath of the present invention is preferably used as part of the following process steps:
- any unspeci ⁇ fied material in a treatment bath composition is water.
- the aluminum DI cans were fabricated by the draw-ironing of aluminum sheet. They were cleaned using the hot aqueous solution of an acidic degreaser (PalklinTM 400, from Nihon Parkerizing Company, Ltd., Tokyo) and then subject- ed to surface treatment.
- the tinplate DI cans were fabricated by the draw-ironing of aluminum sheet. They were cleaned using the hot aqueous solution of an acidic degreaser (PalklinTM 400, from Nihon Parkerizing Company, Ltd., Tokyo) and then subject- ed to surface treatment.
- the tinplate DI cans The tinplate DI cans
- the tinplate DI cans were fabricated by the draw-ironing of tin-plated steel sheet. They were cleaned using a hot aqueous solution of a weakly alkaline de ⁇ greaser (FinecleanerTM 4361A, from Nihon Parkerizing Company, Ltd., Tokyo) and then subjected to surface treatment. Corrosion resistance
- the corrosion resistance of the aluminum DI cans was evaluated by im ⁇ mersing the treated cans in boiling water for 30 minutes and then evaluating the degree of blackening (the absence of blackening is preferred).
- the corrosion re- sistance of the tinplate DI cans was evaluated using the iron exposure value ("IEV") measured in accordance with United States Patent Number 4,332,646. A lower IEV is indicative of a better corrosion resistance, and values at or below 150 are generally considered excellent. Paint adherence
- the paint adherence was evaluated on the basis of the peel strength as follows: An epoxy-urea can paint was applied on the surface of the treated can to yield a paint film thickness of 5 to 7 micrometers. After baking for 4 minutes at 215° C, a 5 x 150 mm strip was cut from the can. A test specimen was pre ⁇ pared by hot-press bonding the strip with polyamide film, and the test specimen was peeled in a 180° peel test to provide the peel strength value. Higher peel strength values are indicative of a better paint adhesion, and values of at least 1.5 kilograms-force ("kgf ')/5 mm of width are generally considered excellent.
- Example 1 Cleaned aluminum DI cans and cleaned tinplate DI cans were subjected to the following sequence of treatments: spraying for 30 seconds with surface treatment bath 1 heated to 40° C, then washing with tap water, spraying with de ⁇ ionized water (having a specific resistance of at least 3 megaohm-cm) for 10 sec ⁇ onds, and finally drying for 3 minutes in a forced convection drying oven at 180° C. The corrosion resistance and adherence of the resulting DI cans were then measured.
- Cleaned aluminum DI cans and cleaned tinplate DI cans were subjected to the following sequence of treatments: spraying for 15 seconds with surface treatment bath 2 heated to 30° C, then a water wash, wash with de-ionized wat ⁇ er, and drying as in Example 1.
- spraying for 15 seconds with surface treatment bath 2 heated to 30° C then a water wash, wash with de-ionized wat ⁇ er, and drying as in Example 1.
- Example 3 Cleaned aluminum DI cans and cleaned tinplate DI cans were subjected to the following sequence of treatments: spraying for 15 seconds with surface treatment bath 3 heated to 35° C, then a water wash, wash with deionized water, and drying as in Example 1. The corrosion resistance and adherence of the re ⁇ sulting DI cans were subsequently measured.
- Surface treatment bath 3 75 % phosphoric acid (H 3 P0 4 ): 69 ppm (PO, 3 -: 50 ppm)
- Example 5 As discussed above, a critical issue for multipurpose treatment baths is the film performance when metal ions different from the substrate metal have entered the bath by a preceding elution from DI cans. In this example, 500 ppm of tin ions was introduced into surface treatment bath 1 and the resulting surface treatment bath, heated to 60° C, was used for a 30-second spray treatment. Washing and drying were then carried out as in Example 1.
- Example 6 100 ppm of aluminum ions were introduced into surface treatment bath 1 and the resulting surface treatment bath, heated to 30° C, was used for a 30-sec ⁇ ond spray treatment. Washing and drying were then carried out as in Example 1.
- Example 7 50 ppm of tin ions were introduced into surface treatment bath 2 and the resulting surface treatment bath, heated to 60° C, was used for a 30-second spray treatment. Washing and drying were then carried out as in Example 1.
- Example 8 100 ppm of aluminum ions were introduced into surface treatment bath 2 and the resulting surface treatment bath, heated to 30° C, was used for a 30-second spray treatment. Washing and drying were then carried out as in Ex ⁇ ample 1 , and the corrosion resistance and adherence of the resulting DI cans were measured.
- Comparative Example 1 Cleaned aluminum DI cans and cleaned tinplate DI cans were subjected to the following sequence of treatments: spraying for 30 seconds with surface treatment bath 5 heated to 30° C, then a water wash, wash with deionized water, and drying as in Example 1. The corrosion resistance and adherence of the re ⁇ sulting DI cans were subsequently measured.
- Surface treatment bath 5 75 % phosphoric acid (H 3 P0 4 ): 69 ppm (PO ⁇ : 50 ppm)
- Comparative Example 2 Cleaned aluminum DI cans and cleaned tinplate DI cans were subjected to the following sequence of treatments: spraying for 30 seconds with surface treatment bath 6 heated to 30° C, then a water wash, wash with deionized water, and drying as in Example 1. The corrosion resistance and adherence of the re ⁇ sulting DI cans were subsequently measured.
- Surface treatment bath 6 75 % phosphoric acid (H 3 P0 4 ): 69 ppm (PO ⁇ : 50 ppm)
- Example 1 50 ppm of tin ions were introduced into surface treatment bath 5 and the resulting surface treatment bath, heated to 30° C, was used for a 30-second spray treatment. Washing and drying were then carried out as in Example 1 , and the corrosion resistance and adherence of the resulting DI cans were measured.
- Comparative Example 4 Cleaned aluminum DI cans and cleaned tinplate DI cans were subjected to the following sequence of treatments: heating a commercial surface treatment bath intended for application to aluminum DI cans (AlodineTM 404, from Nihon Parkerizing Company, Ltd., Tokyo) to 30° C and spraying with this for 30 sec ⁇ onds, then a water wash, wash with deionized water, and drying as in Example 1. The corrosion resistance and adherence of the resulting DI cans were subse- quently measured.
- Comparative Example 5 Cleaned aluminum DI cans and cleaned tinplate DI cans were subjected to the following sequence of treatments: heating a commercial surface treatment bath intended for application to tinplate DI cans (PalfosTM K3482, from Nihon Parkerizing Company, Ltd., Tokyo) to 30° C and spraying with this for 30 sec ⁇ onds, then a water wash, wash with deionized water, and drying as in Example 1. The corrosion resistance and adherence of the resulting DI cans were subse ⁇ quently measured.
- the treatment bath in accordance with the present invention produces a titanium oxide-containing or zirconium oxide-containing film on the surface of aluminum DI cans and produces a tin oxide-containing film on the surface of tin- plate DI cans.
- This multipurpose applicability to different types of substrates is made possible by the presence in the treatment bath of both an oxidizing agent and hydrofluoric acid and/or fluoride and by the stipulation of specific upper limits for them.
- a process according to the invention provides cans, prior to painting and/or printing them, with an excellent corrosion resistance and paint adherence through a low-temperature treatment.
- Example 1 no 100 5.0 3.5 blackening
- Example 2 no 100 5.0 3.5 blackening
- Example 3 no 100 5.0 3.5 blackening
- Example 4 no 100 5.0 3.5 blackening
- Example 5 no 100 5.0 3.5 blackening
- Example 6 no 100 5.0 3.5 blackening
- Example 7 no 100 5.0 3.5 blackening
- Example 8 no 100 5.0 3.5 blackening
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69421716T DE69421716T2 (en) | 1993-07-05 | 1994-07-05 | COMPOSITION AND METHOD FOR TREATING TIN AND ALUMINUM |
EP94922040A EP0726968B1 (en) | 1993-07-05 | 1994-07-05 | Composition and process for treating tinplate and aluminum |
AU72521/94A AU682706B2 (en) | 1993-07-05 | 1994-07-05 | Composition and process for treating tinplate and aluminum |
US08/571,951 US5603754A (en) | 1993-07-05 | 1994-07-05 | Composition and process for treating tinplate and aluminum |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5/165601 | 1993-07-05 | ||
JP5165601A JPH0748677A (en) | 1993-07-05 | 1993-07-05 | Aluminum di can and common surface treatment solution and process for tin di can |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995002077A1 true WO1995002077A1 (en) | 1995-01-19 |
Family
ID=15815457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1994/007298 WO1995002077A1 (en) | 1993-07-05 | 1994-07-05 | Composition and process for treating tinplate and aluminum |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0726968B1 (en) |
JP (1) | JPH0748677A (en) |
AT (1) | ATE186755T1 (en) |
AU (1) | AU682706B2 (en) |
CA (1) | CA2166482A1 (en) |
DE (1) | DE69421716T2 (en) |
ES (1) | ES2140546T3 (en) |
WO (1) | WO1995002077A1 (en) |
ZA (1) | ZA944822B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0837954A1 (en) * | 1995-06-30 | 1998-04-29 | Henkel Corporation | Composition and process for treating the surface of aluminiferous metals |
WO2000068458A1 (en) * | 1999-05-11 | 2000-11-16 | Chemetall Gmbh | Pretreatment of aluminum surfaces with chrome-free solutions |
US6193815B1 (en) | 1995-06-30 | 2001-02-27 | Henkel Corporation | Composition and process for treating the surface of aluminiferous metals |
EP2112251A1 (en) * | 2006-12-20 | 2009-10-28 | Chemteall GmbH | Surface pretreatment fluid for the metal to be coated by cationic electrodeposition |
EP2143822A4 (en) * | 2007-04-04 | 2015-03-11 | Nippon Steel & Sumitomo Metal Corp | Plated steel sheet for can and process for producing the same |
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JP2828409B2 (en) * | 1994-03-24 | 1998-11-25 | 日本パーカライジング株式会社 | Surface treatment composition for aluminum-containing metal material and surface treatment method |
MY130189A (en) * | 1994-03-24 | 2007-06-29 | Nihon Parkerizing | Aqueous composition and solution and process for metallic surface-treating an aluminum-containing metal material |
JP3349851B2 (en) * | 1994-12-22 | 2002-11-25 | 日本パーカライジング株式会社 | Surface treatment composition for aluminum-containing metal material excellent in sludge suppression property and surface treatment method |
US6432603B1 (en) * | 1998-11-27 | 2002-08-13 | Canon Kabushiki Kaisha | Process for producing electrophotographic photosensitive member |
JP5111701B2 (en) * | 2001-09-11 | 2013-01-09 | 日本ペイント株式会社 | Surface treatment method for aluminum or aluminum alloy |
JP4778769B2 (en) * | 2005-10-24 | 2011-09-21 | 昭和アルミニウム缶株式会社 | Aluminum can manufacturing method and aluminum can manufactured by the method |
JP5023468B2 (en) * | 2005-10-28 | 2012-09-12 | Jfeスチール株式会社 | Surface treatment metal plate for can or can lid and method for producing the same, resin-coated metal plate for can or can lid, metal can and can lid |
DE102007037903A1 (en) * | 2007-08-10 | 2009-02-12 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Process for cleaning surfaces and use of the process |
US8404357B2 (en) | 2007-08-23 | 2013-03-26 | Nippon Steel & Sumitomo Metal Corporation | Environmentally-friendly steel sheet for a can or a container as well as laminated and pre-coated steel sheet by using it |
WO2011126137A1 (en) | 2010-04-06 | 2011-10-13 | 新日本製鐵株式会社 | Process for production of steel sheet for container material which has reduced load on environments, steel sheet for container material which has reduced load on environments, and laminate steel sheet for container material and coated precoat steel sheet for container material which are produced using the steel sheet |
JP6295832B2 (en) * | 2014-05-28 | 2018-03-20 | 株式会社ブリヂストン | Aluminum-rubber composite and method for producing the same |
EP4276219A1 (en) * | 2022-05-09 | 2023-11-15 | Atotech Deutschland GmbH & Co. KG | Process for wet-chemical formation of a stable tin oxide layer for printed circuit boards (pcbs) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5424232A (en) * | 1977-07-26 | 1979-02-23 | Nippon Packaging Kk | Surface treating method of aluminum |
DE3236247A1 (en) * | 1982-09-30 | 1984-04-12 | Metallgesellschaft Ag, 6000 Frankfurt | METHOD FOR SURFACE TREATMENT OF ALUMINUM |
US4992116A (en) * | 1989-04-21 | 1991-02-12 | Henkel Corporation | Method and composition for coating aluminum |
US4992115A (en) * | 1988-02-15 | 1991-02-12 | Nippon Paint Co., Ltd. | Surface treatment chemical and bath for aluminum and its alloy |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1098253A (en) * | 1976-04-05 | 1981-03-31 | Timm L. Kelly | Zirconium/titanium coating solution for aluminum surfaces |
JPS5468734A (en) * | 1977-11-11 | 1979-06-02 | Nippon Packaging Kk | Surface treatment of tin plated steel plate and can |
FR2417537A1 (en) * | 1978-02-21 | 1979-09-14 | Parker Ste Continentale | COMPOSITION BASED ON HAFNIUM TO INHIBIT CORROSION OF METALS |
US4470853A (en) * | 1983-10-03 | 1984-09-11 | Coral Chemical Company | Coating compositions and method for the treatment of metal surfaces |
AU4751885A (en) * | 1984-10-09 | 1986-04-17 | Parker Chemical Company | Treating extruded aluminium metal surfaces |
US5139586A (en) * | 1991-02-11 | 1992-08-18 | Coral International, Inc. | Coating composition and method for the treatment of formed metal surfaces |
US5143562A (en) * | 1991-11-01 | 1992-09-01 | Henkel Corporation | Broadly applicable phosphate conversion coating composition and process |
-
1993
- 1993-07-05 JP JP5165601A patent/JPH0748677A/en active Pending
-
1994
- 1994-07-04 ZA ZA944822A patent/ZA944822B/en unknown
- 1994-07-05 AT AT94922040T patent/ATE186755T1/en not_active IP Right Cessation
- 1994-07-05 CA CA002166482A patent/CA2166482A1/en not_active Abandoned
- 1994-07-05 AU AU72521/94A patent/AU682706B2/en not_active Ceased
- 1994-07-05 EP EP94922040A patent/EP0726968B1/en not_active Expired - Lifetime
- 1994-07-05 DE DE69421716T patent/DE69421716T2/en not_active Expired - Fee Related
- 1994-07-05 WO PCT/US1994/007298 patent/WO1995002077A1/en active IP Right Grant
- 1994-07-05 ES ES94922040T patent/ES2140546T3/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5424232A (en) * | 1977-07-26 | 1979-02-23 | Nippon Packaging Kk | Surface treating method of aluminum |
DE3236247A1 (en) * | 1982-09-30 | 1984-04-12 | Metallgesellschaft Ag, 6000 Frankfurt | METHOD FOR SURFACE TREATMENT OF ALUMINUM |
GB2131052A (en) * | 1982-09-30 | 1984-06-13 | Pyrene Chemical Services Ltd | Phosphating aluminium surfaces |
US4992115A (en) * | 1988-02-15 | 1991-02-12 | Nippon Paint Co., Ltd. | Surface treatment chemical and bath for aluminum and its alloy |
US4992116A (en) * | 1989-04-21 | 1991-02-12 | Henkel Corporation | Method and composition for coating aluminum |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0837954A1 (en) * | 1995-06-30 | 1998-04-29 | Henkel Corporation | Composition and process for treating the surface of aluminiferous metals |
EP0837954A4 (en) * | 1995-06-30 | 1998-10-28 | Henkel Corp | Composition and process for treating the surface of aluminiferous metals |
US6193815B1 (en) | 1995-06-30 | 2001-02-27 | Henkel Corporation | Composition and process for treating the surface of aluminiferous metals |
WO2000068458A1 (en) * | 1999-05-11 | 2000-11-16 | Chemetall Gmbh | Pretreatment of aluminum surfaces with chrome-free solutions |
US6562148B1 (en) | 1999-05-11 | 2003-05-13 | Chemetall Gmbh | Pretreatment of aluminum surfaces with chrome-free solutions |
EP2112251A1 (en) * | 2006-12-20 | 2009-10-28 | Chemteall GmbH | Surface pretreatment fluid for the metal to be coated by cationic electrodeposition |
EP2112251A4 (en) * | 2006-12-20 | 2010-04-28 | Chemetall Gmbh | Surface pretreatment fluid for the metal to be coated by cationic electrodeposition |
AU2007335382B2 (en) * | 2006-12-20 | 2012-01-19 | Chemetall Gmbh | Surface pretreatment fluid for the metal to be coated by cationic electrodeposition |
EP2143822A4 (en) * | 2007-04-04 | 2015-03-11 | Nippon Steel & Sumitomo Metal Corp | Plated steel sheet for can and process for producing the same |
Also Published As
Publication number | Publication date |
---|---|
JPH0748677A (en) | 1995-02-21 |
ES2140546T3 (en) | 2000-03-01 |
EP0726968A1 (en) | 1996-08-21 |
DE69421716T2 (en) | 2000-06-29 |
AU682706B2 (en) | 1997-10-16 |
ZA944822B (en) | 1995-02-22 |
AU7252194A (en) | 1995-02-06 |
DE69421716D1 (en) | 1999-12-23 |
EP0726968B1 (en) | 1999-11-17 |
EP0726968A4 (en) | 1996-05-24 |
CA2166482A1 (en) | 1995-01-19 |
ATE186755T1 (en) | 1999-12-15 |
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