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| Number | Title | Issue Date |
| 7909944 | Surface conditioning composition and surface conditioning method A surface conditioning composition is provided in which a titanium phosphate compound can be stored in the state of a dispersion liquid for a long period of time while being stably present in the dispersion liquid, with favorable stability also in the bath, and with... | 03/22/2011 |
| 7344607 | Non-chromate conversion coating treatment for metals Chromate-free treatments and compositions, for applying a conversion or passivation coating to zinc coated metal surfaces. The compositions comprise a polyamidoamine/epihalohydrin polymer or cationic polyamine/epihalohydrin polymer component, fluoacid, H3... | 03/18/2008 |
| 7294210 | Use of substituted hydroxylamines in metal phosphating processes Alkyl-substituted hydroxylamines are useful as aids in the phosphating of metal substrates. In particular, the rate of phosphating and the rate at which manganese compounds are dissolved into aqueous phosphoric acid solutions may be accelerated by alkyl-substituted ... | 11/13/2007 |
| 7285200 | Process for electrocoating metal blanks and coiled metal substrates Processes for forming a coating on electroconductive flat blanks having two major surfaces and sheared edges are provided. Also provided is a process for forming a multi- composite coating on a pre-sheared, electroconductive, flat blank having two major surfaces and... | 10/23/2007 |
| 7285201 | Process for electrocoating metal blanks and coiled metal substrates Processes for forming a coating on electroconductive flat blanks having two major surfaces and sheared edges are provided. Also provided is a process for forming a multi-composite coating on a pre-sheared, electroconductive, flat blank having two major surfaces and ... | 10/23/2007 |
| 7208053 | Method for applying a phosphate covering and use of metal parts thus phospated Metallic surfaces are coated with an aqueous, acidic phosphate solution containing 10 to 60 g/l zinc, 0.5 to 40 g/l manganese, 50 to 300 g/l phosphate ions calculated as P2O5, and optionally other components. ... | 04/24/2007 |
| 7041629 | Stripper for special steel The inventive aqueous pickling agent on the basis of sulfuric acid or phosphoric acid and hydrogen fluoride for stainless steels, which pickling agent is free of wetting and emulsifying agents, contains (each as 100 wt-% substance) | 05/09/2006 |
| 7037385 | Aqueous metal treatment composition An aqueous metal surface treatment composition comprising the following ingredients: (A) an aqueous dispersion of a phenolic resin that includes a reaction product of (i) a phenolic resin precursor; | 05/02/2006 |
| 7030183 | Surface treating method and surface treating agent A plating solution containing zinc, an electrically conductive salt, an adsorbent, and at least one of mono- to hexavalent metal ions. A treatment using either a solution which contains, all per liter, 2–60 g Zn, 40–300 g caustic alkali, 0.01–50 g adsorbent, 0... | 04/18/2006 |
| 6902766 | Two-part aqueous metal protection treatment A two-part metal protection composition includes: an aqueous metal treatment conversion coating component that includes an admixture of an acid and a coating forming component; and an aqueous protective coating component that is applied over metal treated with the a... | 06/07/2005 |
| 6875334 | Method of anodizing of magnesium and magnesium alloys and producing conductive layers on an anodized surface A method, a composition and a method for making the composition for anodizing metal surfaces, especially magnesium surfaces is disclosed. The composition is a basic aqueous solution including hydroxylamine, phosphate anions and nonionic surfactants. A complementary ... | 04/05/2005 |
| 6858097 | Brightening/passivating metal surfaces without hazard from emissions of oxides of nitrogen A chromium- and nitrogen-free brightening and passivating treatment for metal surfaces, particularly iron and steel, comprises: at least one acid; at least one substance containing a peroxy moiety; and at least one organic substance selected from the group consistin... | 02/22/2005 |
| 6835460 | Dry-in-place zinc phosphating compositions and processes that produce phosphate conversion coatings with improved adhesion to subsequently applied paint, sealants, and other elastomers Excellent adhesion to subsequently applied paint or elastomer is obtained by coating a metal substrate with a phosphate conversion coating by contact with a liquid phosphating solution that contains zinc cations, phosphate anions, and at least one adhesion promoter ... | 12/28/2004 |
| 6818313 | Corrosion-inhibiting coating A corrosion-inhibiting coating, process, and system that provides a tight, adherent zinc- or zinc-alloy coating that is directly deposited onto steel or cast iron surfaces for enhanced corrosion protection. A process for applying the coating is also provided. The pr... | 11/16/2004 |
| 6805756 | Universal aqueous coating compositions for pretreating metal surfaces A universal aqueous composition and a process for using such a composition for pretreating metal substrates is provided. The aqueous composition includes a hydroxy functional cyclic compound, such as a tannin, in an amount of at least about 500 ppm, phosphate ions, ... | 10/19/2004 |
| 6758916 | Composition and process for treating metals A chromium free conversion coating at least equivalent in corrosion protective quality to conventional chromate conversion coatings can be formed on metals, particularly cold rolled steel, by a dry-in-place aqueous acidic liquid that preferably has a pH value betwee... | 07/06/2004 |
| 6638370 | Phosphate conversion coating process and composition By including nitric acid and hydroxylamine in a manganese phosphating composition and controlling the ratio of nitric to phosphoric acids and the ratio of Total Acid to Free Acid within a specified range, satisfactory manganese phosphate conversion coatin... | 10/28/2003 |
| 6569264 | Surface-treating agent for magnesium-based part and method of surface treatment The present invention provides a corrosion inhibitor composition for magnesium or magnesium alloys which contains as an effective component, at least one compound selected from among aromatic carboxylic acids and salts thereof as an effective component. F... | 05/27/2003 |
| 6461450 | Method for controlling the coating weight for strip-phosphating A process for controlling the layer weight during the phosphating of steel strip zinc-coated on one or both sides, using a phosphating solution which contains 1 to 6 g/l zinc ions and 10 to 30 g/l phosphate ions, characterized in that a Fe(II) ion content... | 10/08/2002 |
| 6447662 | Process for phosphatizing, rerinsing and cathodic electro-dipcoating A process for pretreating surfaces made from steel, galvanised steel and/or aluminum and/or alloys thereof, wherein, in a first process stage, phosphating is performed using a low-nickel zinc phosphating solution; in a second process stage, the phosphated... | 09/10/2002 |
| 6395105 | Phosphating process with a metalliferous re-rinsing stage A process for phosphating metal surfaces in which a nitrite- and nickel-free zinc-containing phosphating solution is applied to the metal surfaces which, if desired, are then rinsed and subsequently after-rinsed with an aqueous solution with a pH value of... | 05/28/2002 |
| 6383307 | Aqueous metal treatment composition An aqueous metal surface treatment composition that includes (A) an aqueous dispersion of a phenolic novolak resin that includes water and a reaction product of a phenolic resin precursor, a modifying agent and a multi-hydroxy phenolic compound wherein th... | 05/07/2002 |
| 6379474 | Phosphating method accelerated by N-oxides An acidic aqueous phosphating solution is presented having 0.2 to 3 g/l of zinc ions, 3 to 50 g/l of phosphate ions expressed as PO4-3, and 0.05 to 4 g/l of an organic N-oxide containing a saturated, unsaturated or aromatic 5- or 6-m... | 04/30/2002 |
| 6368426 | Zinc phosphate conversion coating and process Concentrates containing (a) an hydroxylamine sulfate accelerator, and (b) zinc, nickel, manganese, and phosphate ions are formulated into aqueous coating solutions for treating metal surfaces, such as ferrous, zinc, and aluminum surfaces. In the process o... | 04/09/2002 |
| 6361623 | Method for phosphatizing iron and steel A high quality lubricant carrier for lubrication in cold plastic working of iron and steel is provided by a process in which the surfaces of objects to be worked are first treated with a surface conditioning liquid composition that contains dispersed fine... | 03/26/2002 |
| 6342107 | Phosphate coatings for metal surfaces Processes and solutions for phosphating metal surfaces. The solutions are acidic aqueous phosphate solutions containing a) from 0.1 to 1.5 g/l of zinc ion; b) from 5 to 50 g/l of phosphate ion; c) from 0.2 to 4 g/l of manganese ion; d) at least 0.05 g/l o... | 01/29/2002 |
| 6261384 | Process and aqueous solution for phosphatizing metallic surfaces A process is disclosed for preparing an aqueous zinc phosphatizing solution for producing phosphate coatings on metallic surfaces of iron, steel, zinc, zinc alloys, aluminum or aluminum alloys, which comprises: (1) 0.3 to 5 g Zn2+ /1; (2) 0.1 to 3 g... | 07/17/2001 |
| 6231687 | Lubrication treatment method for cold working of steel A phosphating solution that contains from 3 to 30 g/l of zinc ions, from 0.1 to 20 g/l of ferrous ions, from 5 to 60 g/l of phosphate ions, from 5 to 60 g/l of nitrate ions, and a source of hydroxylamine in a concentration corresponding stoichiometrically... | 05/15/2001 |
| 6200672 | Surface-treated metal plate and metal surface treating fluid A surface treated metal sheet which is coated with a layer comprising, as main components, a complex and/or salt between a rare earth metal element and an organic compound having in the molecule one or more functional groups selected from among --O--, .db... | 03/13/2001 |
| 6179934 | Aqueous phosphating composition and process for metal surfaces An aqueous zinc phosphate conversion coating that contains 5 to 50 g/L of phosphate ions, 0.2 to 10 g/L of zinc ions, and 0.5 to 4.0 g/L as hydroxylamine of a hydroxylamine source, and also: (1) contains 0.01 to 5.0 g/L polycarboxylic acid or salt thereof... | 01/30/2001 |
| 6153022 | Composition and process for surface treatment of aluminum and its alloys An aqueous liquid surface treatment composition having a pH value not more than 6.5 and containing phosphoric acid ions, condensed phosphoric acid ions, an oxidizing agent, and a water-soluble polymer consisting, except for end groups, of polymer units ex... | 11/28/2000 |
| 6096139 | Triazinethiol-containing anticorrosive coating, anticorrosion treatment method, and anticorrosion treated metal materials A solution and a process for non-chromium rust proof coating is disclose. The rust proof coating solution includes a composite of which the main components are an aqueous resin and water, with 0.2-20 g/l of triazine thiol compound and 0.1/5 g/l phosphoric... | 08/01/2000 |
| 6090224 | Phosphating process with a copper-containing re-rinsing stage A process for phosphating metal surfaces in which a nitrite- and nickel-free zinc-containing phosphating solution is applied to the metal surfaces which, if desired, are then rinsed and subsequently after-rinsed with an aqueous solution with a pH value of... | 07/18/2000 |
| 6059896 | Composition and process for treating the surface of aluminiferous metals A surface of aluminiferous metal is brought into contact at 25 to 65° C. for 2 to 100 seconds with a surface treatment bath with a pH of 1.0 to 6.0 that contains phosphate ions, dissolved titanium and/or zirconium compounds, dissolved fluorine-containing... | 05/09/2000 |
| 6019858 | Zinc phosphate conversion coating and process Concentrates containing (a) an hydroxylamine sulfate accelerator, and (b) zinc, nickel, manganese, and phosphate ions are formulated into aqueous coating solutions for treating metal surfaces, such as ferrous, zinc, and aluminum surfaces. In the process o... | 02/01/2000 |
| 6013377 | Surface-treated metal material and metal surface treatment method A surface-treated metal material wherein a film comprising an organic polymer compound having 5-100 mg of carbon per m2 and a phosphoric acid compound having 1-30 mg of phosphorus per m2 is formed on a metal surface, the ratio C/P of... | 01/11/2000 |
| 5972433 | Method for treatment of metal substrates using Mannich-derived polyethers Methods for treating metal substrates are disclosed. These methods, which comprise contacting the surface to be treated with a composition comprising a Mannich-derivatized polyether, improve the corrosion resistance and/or adhesion properties of the treat... | 10/26/1999 |
| 5942052 | Surface treatment aqueous solution for metal A surface treatment aqueous solution is provided which is superior in corrosion resistance and coating adhesiveness as well as in ability of inhibiting the production of precipitate. A tinned DI can, which has been degreased, is conversion coating process... | 08/24/1999 |
| 5935348 | Composition and process for preventing corrosion and reducing friction on metallic surfaces Aqueous acid treatment solution for the treatment of beverage cans, in particular of aluminum, for producing a corrosion-protective, friction-reducing coating which improves the ability to be enameled, which comprises 0.14 to 2.25 mmol/l of an alkylamine ... | 08/10/1999 |
| 5925174 | Composition and process for treating the surface of copper-containing metals An aqueous liquid composition for treating the surface of copper-containing metals is a dispersion and/or solution in water and organic solvent, at least one silane coupling agent having a functional moiety selected from vinyl, mercapto, amino and glycidy... | 07/20/1999 |
