Tin-containing Coating Patents (Class 205/140)
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Patent number: 9309376Abstract: Waterborne coatings are described having an acceptable balance of properties both during the storage of coating, application and drying. The period in which irregularities in a freshly applied coating can be repaired without resulting in brush marks is referred to as the open time. Aqueous coatings generally employ dispersed high molecular weight polymers as binders. These binders often provide short open times when the coating is dried since the dispersed polymer particles tend to be immobilized quickly in the edge region of an applied coating. As a result, the viscosity of the coating increases rapidly, which leads to a limited window of workability. The instant invention provides additives that are not volatile but that will extend the time that the film is malleable after after it is applied without interfering with other attributes, such as the resistance of the coating to freezing while in the can prior to application.Type: GrantFiled: March 10, 2013Date of Patent: April 12, 2016Assignee: Ethox Chemicals, LLCInventors: Charles Francis Palmer, Jr., Lester Arnold Haney, II, Calvin M. Wicker, Jr.
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Publication number: 20150010773Abstract: The invention relates to a method for passivating the surface of a tinned steel strip which is moved through a coating system at a strip speed of at least 200 m/min. After the steel strip is tinned, the surface is anodically oxidized, and a liquid solution of a chromium-free aftertreatment agent is applied onto the oxide layer. The invention further relates to a tinned steel strip or sheet with a support layer made of a fine or ultrafine sheet of steel, a tin layer which is deposited thereon, and a surface layer of a chromium-free aftertreatment agent. An oxide layer is formed between the tin layer and the surface layer of the aftertreatment agent, said oxide layer substantially consisting of tetravalent tin oxide (SnO2).Type: ApplicationFiled: December 31, 2012Publication date: January 8, 2015Inventors: Reiner Sauer, Andrea Marmann, Helmut Oberhoffer, Tatjana Kasdorf
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Publication number: 20140037985Abstract: The present invention discloses a high-strength tin-plated bronze tire bead steel wire, which comprises a steel wire base body. The surface of the steel wire base body is provided with at least two plating layers, and the tin content of the plating layers decreases layer by layer from inside to outside. The plating layer directly adjoining the surface of the steel wire base body has a high tin content, the adhesive force between the plating layer and the steel wire base body is strong, and the plating layer which has a high tin content can more effectively prevent the steel wire base body from rusting. The plating layers with the tin content gradually decreasing from inside to outside are combined closely with each other, and a strong adhesive force exists between the outermost plating layer with the relatively lowest tin content and tire rubber.Type: ApplicationFiled: December 26, 2011Publication date: February 6, 2014Applicant: SHANDONG DAYE CO., LTD.Inventor: Yong Dou
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Patent number: 7517443Abstract: The invention refers to a composition and method of electrolytic tinning in continuous a steel strip or plate with an electrolyte composition comprising the following components (g/l): Tin (in a form of tin sulfamate) 50-90, Sulfamic acid, free 40-100, Sulfates, in a form of SO42-0-15, Nitrogen-bearing block polymer 1-6, said block polymer being a copolymer of propylene oxide and ethylene oxide with molecular weight of 3950 to 6450 and “number of ethylene oxide links-to-number of propylene oxide links” ratio of 1.4-1.2:1.0 at initial buildup of required number of links from propylene oxide followed by oxyethylation.Type: GrantFiled: March 24, 2005Date of Patent: April 14, 2009Assignee: Danieli & C. Officine Meccaniche S.p.A.Inventors: Vladimir Andreevic Paramonov, Vitalij Polikarpovic Vinogradov, Rafkat Spartakovic Takhautdinov, Angelo Frixione, Michele Turchetto, Joseph Frimpong, Anatoliy Aleksandrovic Karpov, Galina Sergeevna Guljaeva
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Patent number: 7465384Abstract: An acid electrolyte and method of using the electrolyte to both deposit tin and tin-alloys on iron containing substrates and at the same time perform as a flux to inhibit the formation of haze and stains on the tin and tin-alloys. The electrolytes and methods are suitable for plating on steel.Type: GrantFiled: February 28, 2006Date of Patent: December 16, 2008Assignee: Rohm and Haas Electronic Materials LLCInventors: Peter R. Levey, Neil D. Brown
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Patent number: 7390731Abstract: The process according to the invention makes it possible to deposit a transparent conductive oxide film on a toughened glass substrate placed inside a chamber. It consists in providing sources containing an oxygen-based liquid compound, a liquid compound of the metal intended to form the oxide, and a dopant in gaseous or liquid form, respectively; establishing a temperature between 130 and 300° C. and a pressure between 0.01 and 2 mbar in the chamber; and then bringing said sources into communication with the chamber, which has the effect of vaporizing the liquids at their surface, of drawing them up into the chamber without having to use a carrier gas, and of making them react therein with the dopant so that the oxide layer is formed on the substrate.Type: GrantFiled: August 23, 2002Date of Patent: June 24, 2008Assignee: Universite de Neuchatel, Institut de MicrotechniqueInventors: Ulrich Kroll, Johannes Meier
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Patent number: 7323097Abstract: An electroplating method calls for immersing a body to be plated in a plating solution containing tin and bismuth to form a tin-bismuth alloy skin layer on surfaces of the body. The plating is carried out such that a solid tin metal and a solid bismuth metal placed in the plating solution are connected to an anode and the body to be plated is connected to a cathode of a power supply.Type: GrantFiled: December 3, 2004Date of Patent: January 29, 2008Assignee: Renesas Technology Corp.Inventors: Mitsuru Kinoshita, Tsugihiko Hirano, Katsunori Takahashi
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Patent number: 7195796Abstract: A process is provided for making a composite work article suitable for fabricating rigid sheet metal can components. A steel sheet having first and second surfaces is pre-treated to enhance reception and retention of a multi-layer polymer coating on the pre-treated first surface. The multi-layer polymer coating is melt extruded on the pre-treated first surface and beyond opposite lateral edges of the work article to establish overhang portions, then solidified. The multi-layer polymeric coating has a tie polymeric layer contacting the pre-treated first surface, and a finish-surface polymeric layer.Type: GrantFiled: August 9, 2004Date of Patent: March 27, 2007Assignee: ISG Technologies, IncInventors: John A. Sinsel, Mark V. Loen, Michael S. Bailey
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Patent number: 6562221Abstract: A composition and process for electroplating tin or tin alloys onto a substrate at relatively high current densities. The electrolyte comprises toluene sulfonic acid and a source of ammonium ions and/or magnesium ions. The process is particularly suited to high speed reel to reel or strip steel plating.Type: GrantFiled: September 28, 2001Date of Patent: May 13, 2003Inventor: David Crotty
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Patent number: 6454928Abstract: A method for providing a tin-plated wire which is free from thermal oxidation yellowing. In a tin-plated wire which comprises a core wire 1 with its surface being formed with a tin-plating layer 2, the composition of the plating is comprised of 30 to 500 wppm gallium, and tin or tin alloy that makes up the remainder thereof. With the content of Ga more than 30 wppm, thermal yellowing is able to be prevented. As too much content of Ga causes surface roughness, the content of Ga must be 500 wppm or below.Type: GrantFiled: February 1, 2001Date of Patent: September 24, 2002Assignee: Riken Electric Wire Co., Ltd.Inventors: Yasuo Takeshita, Tomohiro Fujioka, Nobuhiro Miyazawa
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Patent number: 6372345Abstract: The present invention is applicable to composite particles for composite dispersion plating used for forming a self-lubricating composite dispersion coating and a method of plating using such composite particles as well as a plating (coating) using the same. The purpose of the invention is to obtain a composite particle for composite dispersion plating which is comprised of a particle with an excellent capability of reducing the friction and a low or very low specific gravity, and a method of plating using such composite particles. In this invention, each of the composite particles includes a friction-reducing mother or core particle (1) encapsulated with shell particles (2) comprised of the same components as a base metal of a composite dispersion plating bath (5). This provides a composite particle for composite dispersion plating which is comprised of a particle with an excellent capability of reducing the friction and a low or very low specific gravity.Type: GrantFiled: June 17, 1999Date of Patent: April 16, 2002Assignees: Nihon Parkerizing Co., Ltd., Isuzu Motors LimitedInventors: Takayuki Wakae, Akira Tsujimura, Yuichiro Hara, Tadashi Kamimura, Masaaki Beppu, Eiji Hirai, Seiki Mori
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Patent number: 6280596Abstract: Methods and apparatus enabling simultaneous electrolytic tinplating of bottom and top surfaces of continuous-strip flat-rolled steel substrate while moving in the direction of its length, are disclosed. Both surfaces are plated in a first cell of a multi-cell horizontally-oriented tinplating line. The stannous ion plating source and the source of electrical power, for each surface, differ. Tin pellets for an upper surface anode are confined in a solution-permeable material confined, within an electrically-conductive lining. Dissolution of surface iron from the steel strip is substantially eliminated, improving the stannous ion plating solution quality, eliminating requirements for harmful additives, and increasing the variety of electrolytically tinplated continuous-strip steel products and processes.Type: GrantFiled: October 1, 1999Date of Patent: August 28, 2001Assignee: Weirton Steel CorporationInventors: Ralph Wilkerson, John A. Sinsel, Tony Georgetti, Eugene J. Chelen, Lowell W. Austin
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Patent number: 6217738Abstract: There is a disclosed composition suitable for use in a process for electroplating surfaces with tin, comprising: a) one or more acids selected from sulphuric acid, sulphamic acid, aryl sulphonic acids, alkyl sulphonic acids and alkanol sulphonic acids, b) one or more addition agents comprising a mono-, di- or tri-substituted phenol (each optionally alkyoxylated) or a mixture of two or more such compounds, in which at least one of the substituents includes a secondary, tertiary or quaternary nitrogen atom, c) a tin source and d) water. There is also disclosed a method of tin plating using the composition of this invention.Type: GrantFiled: December 17, 1998Date of Patent: April 17, 2001Assignee: MacDermid, Inc.Inventor: Cavan Hugh O'Driscoll
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Patent number: 6174426Abstract: A method is provided for enhancing the adhesion of organic polymer coatings to electrolytically passivated (CDC) tin-plated steel strip. The method includes applying a solution comprising 0.1 to 7 percent of an adhesion promoter to the electrolytically tin-plated strip during the processing of the strip on an electrolytic tin-plating line. The adhesion promoter may be at least one selected from the group consisting of: where n is within a range of from 4 to 99; (b) C16H33+N(CH3) 3 M where M is member of the halogen group; and (c) Rn—Si—(X)4−n where R is a non-hydrolyzable organic radical selected from the group consisting of glycol, epoxy, amine, diamine or mercapto groups, and mixtures thereof, containing from 3 to 10 carbon atoms; the number n is an integer from 1 to 3; and X is a hydrolyzable group selected from the group consisting of Cl—, OCH3, OCH2CH5, OOCCH3, OCH2OCH3, amine, diamine, triamine, acyloxy and alkoxysilanes, and mixtures thereof.Type: GrantFiled: August 12, 1999Date of Patent: January 16, 2001Assignee: USX CorporationInventor: Gabriel Jeminiwa Osanaiye
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Patent number: 6022467Abstract: Continuous electrolytic tin plating is accomplished in a bath containing 90-160 g/L sulfuric acid, 4-70 g/L tin ion and a grain refiner, and 1-4% nonylphenol ethoxylated with 8-10 ethylene oxide groups, having a weight average molecular weight of 616.+-.18, at a speed of 900-1600 feet per minute and a current density as much as 1500 amperes per square foot or more.Type: GrantFiled: August 20, 1998Date of Patent: February 8, 2000Assignee: USX CorporationInventor: Ersan Ilgar
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Patent number: 5814202Abstract: Continuous electrolytic tin plating is accomplished in a bath containing 90-160 g/L sulfuric acid, 40-70 g/L tin ion and a grain refiner, at a speed of 900-1600 feet per minute and a current density as much as 1500 amperes per square foot or more.Type: GrantFiled: October 14, 1997Date of Patent: September 29, 1998Assignee: USX CorporationInventor: Ersan Ilgar
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Patent number: 5665219Abstract: Process for continuous manufacture of an electrical conductor consisting of an at least partially aluminium-based central core coated by continuous electrodeposition with at least one metal layer, including pretreatment of the surface of the core, characterized in that the following are subsequently performed successively on the core,a) an electrochemical deposition of copper in an aqueous bath maintained at a temperature of between 20.degree. C. and 60.degree. C., containing KCN, CuCN, K.sub.2 CO.sub.3 and KNaC.sub.4 H.sub.4 O.sub.6 with a current intensity of between 1 and 10 A/dm.sup.2 ;b) rinsing at ambient temperature;c) an electrochemical deposition of tin in an aqueous bath maintained at a temperature of between 20.degree. C. and 60.degree. C., containing essentially tin dissolved in methanesulphonic acid and, optionally, additives, with a current intensity of between 1 and 100 A/dm.sup.2 ;d) rinsing with water at 60.degree. C.Type: GrantFiled: June 1, 1995Date of Patent: September 9, 1997Assignee: Axon'Cable SAInventor: Ning Yu
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Patent number: 5641391Abstract: Embodiments of the present invention provide a new method for producing a three dimensional object, particularly suited to microfabrication applications. The method includes the steps of providing a substrate with a conducting interface, an electrode having a feature or features that are small relative to the substrate, and a solution. The solution has a reactant that will either etch the substrate or deposit a selected material in an electrochemical reaction. The electrode feature is placed close to but spaced from the interface. A current is passed between the electrode and the interface, through the solution, inducing a localized electrochemical reaction at the interface, resulting in either the deposition of material or the etching of the substrate. Relatively moving the electrode and the substrate along a selected trajectory, including motion normal to the interface, enables the fabrication of a three dimensional object.Type: GrantFiled: May 15, 1995Date of Patent: June 24, 1997Inventors: Ian W. Hunter, Serge R. Lafontaine, John D. Madden
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Patent number: 5628893Abstract: A composition of matter for electrolytically depositing a tin layer on an iron containing-substrate is disclosed comprising an acidic aqueous mixture of:(a) a stannous tin halide; and(b) a salt having(1) an alkaline cation, and(2) an oxygen-containing inorganic acid anion reducible to a lower oxidation state.The salt is selected to minimize oxidation of Sn (II) to Sn (IV). An electrolytic cell for electrolytically depositing a tin layer on an iron-containing substrate is also disclosed, where the cell has an electrolyte comprising the foregoing composition. The overall cell potential of the cell is decreased, and the free energy increased, compared to an electrolytic cell without the salt. A process is disclosed for depositing a tin layer on an iron containing substrate comprising electrolytically coating the substrate with the composition, or coating the substrate employing the foregoing electrolytic cell. A product made by any of the foregoing processes is also described.Type: GrantFiled: November 24, 1995Date of Patent: May 13, 1997Assignee: Atotech USA, Inc.Inventor: Vincent C. Opaskar
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Patent number: 5437096Abstract: A fabrication method and leadframe construction in which the leadframe is formed by selectively removing portions of a multilayer clad strip to expose a selected pattern of a conductive metal to conform to the desired application of the leadframe. The clad strip may be formed of a base layer of copper alloy, a conducting layer of aluminum or aluminum alloy, and an upper layer of copper or a copper alloy. A layer of tin or lead-tin alloy may be plated onto the upper layer.Type: GrantFiled: February 28, 1994Date of Patent: August 1, 1995Assignee: Technical Materials, Inc.Inventor: Joseph P. Mennucci
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Patent number: 5427677Abstract: An improved process for reflowing tinplate by treating a matte finish of tinplate with a flux, and reflowing the fluxed matte tinplate to produce bright tinplate, wherein the flux is a naphthalenesulfonic compound, preferably having the a naphthalene ring which is substituted with at least one --SO.sub.3 M group where M is hydrogen, an alkali metal or an alkaline earth metal and is optionally substituted with at least one hydroxy group. The flux is preferably applied to the matte tinplate in an aqueous solution which may contain an acid. The most preferred fluxes are 2-naphthol-6,8-disulfonic acid, 1-naphthol-3,6-disulfonic acid, and dipotassium 2-naphthol-6,8-disulfonate.Type: GrantFiled: February 18, 1994Date of Patent: June 27, 1995Assignee: LeaRonal, Inc.Inventor: Claudia Mosher
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Patent number: 5403468Abstract: A process for the manufacture of tinplates comprising electroplating a substrate in a fused-chloride tin plating bath at a temperature of about 150.degree. to 350.degree. C., a current density of about 100 to 500 A/dm.sup.2 in an atmosphere of a non-oxidizing gas. This process may be converted to a process for the manufacture of reflow type tinplates by only changing the bath temperature, and vice versa. For the manufacture of no-reflow type tinplates, the bath is kept at 150.degree. to 232.degree. C., while for the manufacture of reflow type tinplates, the bath is kept at 233.degree. to 350.degree. C. In these cases, the bath includes SnCl.sub.2 and at least one member selected from the group consisting of KCl, NaCl, LiCl and AlCl.sub.3, and may preferably be operated while flowing the bath at a flow rate of about 0.1 m/sec higher.Type: GrantFiled: March 10, 1992Date of Patent: April 4, 1995Assignee: Kawasaki Steel CorporationInventors: Hisatada Nakakoji, Seiji Nakajima, Shuji Gomi, Nobuyuki Morito
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Patent number: 5391290Abstract: A method for continuously tin-electroplating a metal strip, which comprises the steps of: causing a DC electric current to flow between a metal strip and an anode arranged adjacent to the metal strip while passing the metal strip at a travelling speed of at least 1 m/minute through an acidic tin-electroplating solution containing tin ions and an organic acid within a range of from 4.8 to 98 g/l as converted into sulfuric acid, to form a tin-electroplating layer on at least one surface of the metal strip; and applying an ultrasonic vibration, emitted from at least one ultrasonic vibrator and having an intensity within a range of from 0.01 to 1,000 W/100 cm.sup.2 and a frequency within a range of from 25 to 55 kHz, to the acidic tin-electroplating solution between the metal strip and the anode, thereby removing a diffusion layer of tin ions existing in the acidic tin-electroplating solution adjacent to the surface of the metal strip.Type: GrantFiled: March 29, 1993Date of Patent: February 21, 1995Assignee: NKK CorporationInventors: Mikiyuki Ichiba, Hiroki Iwasa, Toyofumi Watanabe, Masaaki Yamashita, Katsumi Kojima
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Patent number: 5346607Abstract: Stannous electrolytic tinplating baths utilized in flat-rolled steel tinplating operations contain non-filterable lead in solution at undesirable levels because of the lead content of commercially available tin anode materials. As taught herein, lead in the electrolyte is controllably incapacitated for deposition with the tin by chemical treatment of the bath which establishes, in solid phase, an insoluble bivalent metal compound having an affinity for lead which is adsorbed. In a preferred halogen-system embodiment, calcium fluoride presents an extended surface area for adhesion of lead and not only incapacitates lead in the bath for deposition purposes but also enables separation of such adsorbed lead from the plating bath as part of sludge removal.Type: GrantFiled: September 30, 1992Date of Patent: September 13, 1994Assignee: Weirton Steel CorporationInventors: John L. Swanson, Lowell W. Austin
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Patent number: 5132004Abstract: A method for the manufacture of a metal-coated steel strip with improved surface structure, wherein the strip is electrolytically coated with one or more metal coatings and the last-applied coating is temporarily melted by supplying heat to the strip (melting-on), is characterized in that the heat supplied to the strip for effecting the melting-on is generated at least in part by an electric current which is at all times non-zero. The heat supplied to effect the melting-on substantially continously compensates heat loss from the strip to the surroundings during the melting-on, and may for example be generated by electrical resistance heating using only a direct current or using an alternating current on which is superimposed a direct current. The strips produced are free of the so-called woodgrain effect.Type: GrantFiled: May 23, 1990Date of Patent: July 21, 1992Assignee: Hoogovens Groep AVInventors: Gijsbertus C. van Haastrecht, Jacob Miedema, Huig Bunk
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Patent number: 5084358Abstract: Composite-coated flat-rolled steel, product, method of manufacture and method of fabrication in which single or double-reduced low-carbon steel, after surface preparation, is flash-coated with tin (about 0.05 #/bb) which is alloyed with the base metal. Dichromate treatment passivates the tin-iron alloy surfaces depositing a chrome oxide layer prior to application of an organic coating (about 3 to 15 mg/in.sup.2 to each surface). Enhanced coating adhesion of the organic coating enables draw-processing of the double-reduced steel base metal substrate into unitary can bodies without damage to coating or substrate.Type: GrantFiled: March 3, 1989Date of Patent: January 28, 1992Assignee: Weirton Steel CorporationInventor: William T. Saunders
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Patent number: 5082538Abstract: A method and apparatus are disclosed for replenishing metal ions in an electrolyte depleted of the metal ions. A preferred example is replenishing tin in the electrolyte of an electrolytic tinning apparatus having an insoluble anode. The electrolyte thus becomes depleted of tin in the electrotinning process. The replenishment apparatus comprises an electrolytic cell including a tin anode, a cathode, and an electrolyte chamber for the tin anode and the cathode. The cathode is a gas diffusion electrode. An electrical circuit, usually having additional circuit resistance but free of connection to an external power source, connects the anode to the cathode. The electrolyte chamber has an electrolyte inlet, and an electrolyte outlet which is in flow communication with the electrolytic tinning apparatus. The gas diffusion electrode is exposed, on its gas side, to a source of gaseous reactant, e.g., oxygen.Type: GrantFiled: January 9, 1991Date of Patent: January 21, 1992Assignee: ELTECH Systems CorporationInventors: Donald L. DeRespiris, Eric J. Rudd, Carolyn Schue