Abstract: An article is coated with a multi-layer coating comprising a polymeric layer deposited on the surface of the article, a zirconium compound, titanium compound or zirconium/titanium alloy compound layer deposited on the polymeric layer, and a silicone resin layer deposited on the zirconium compound or titanium compound layer.

Abstract: An organic rust-roof treated copper foil characterized in that it has a metallic rust-proof layer formed on the non-adhesive side of the original copper foil and has an organic rust-proof layer formed on said metallic rust-proof layer, the organic rust-proof layer comprising a mixture of at least two kinds of chemicals selected from the group consisting of benzotriazole, its derivatives, aminotriazole and its isomers and derivatives is provided with on said metallic rust-proof layer, or it further has a chromate-treated layer formed between said metallic rust-proof layer and said organic rust-proof layer.

Abstract: A solar control window film having low emissivity minimizes the transfer of thermal energy through window glass by thermal radiation between a temperature controlled interior environment and a uncontrolled exterior environment. The film is comprised of a transparent flexible polymeric substrate bearing various transparent thin film layers of coating materials, including a highly reflective metal. The film is devoid of laminations and laminating adhesives and provides high visual light transmission of up to 50% or more while maintaining a very low emissivity of 0.30 or less. The film is especially suited for retrofitting existing plain glass windows to convert the same to solar control windows.

Abstract: A device for generating electrical current in the presence of ambient heat includes an intermediate layer having a predetermined electronegativity value interposed between a first outer layer and a second outer layer, in which the first outer layer has an electronegative value less than the intermediate layer, and the second outer layer has an electronegative value less than the first outer layer. The intermediate layer includes a first binder combination and a second binder combination. The first binder combination contains a polymeric binder and a first electronegative material. The second binder combination contains a polymeric binder and a second electrogneative material. The first and second binder combinations have a predetermined electronegative value that is greater than said first and second outer layers. A method of making and a method of activating the device for the generation of electricity are also disclosed.

Abstract: High-tensile steel, particularly automotive coil springs formed of high-tensile steel, are coated first with an epoxy coating powder containing high levels of zinc and then with a poly(ethylene/acrylic acid copolymer) coating powder. Both coatings are applied and fused or fused and cured at temperatures of 325.degree. F. or below so as not to affect the metallurgic properties of the steel. The dual-coating protects the steel from pitting and corrosion.

Abstract: A transparent electrically conductive plate contains a transparent substrate, a transparent electrically conductive layer, an ultraviolet absorbing layer disposed between the transparent substrate and the transparent electrically conductive layer and containing an organic ultraviolet absorber, and an overcoating layer disposed between the transparent electrically conductive layer and the ultraviolet absorbing layer for protecting the ultraviolet absorbing layer.

Abstract: An insulating vacuum panel comprising an insulating support member enclosed within a sealed, flexible polymeric envelope, the envelope comprising a polymeric barrier film which minimizes permeation of gas and liquid through the barrier film, the panel having an R value per inch of at least about 20 wherein the enclosed insulated vacuum panel is useful as insulation to maintain an essentially constant temperature in a closed structure, and a system for storing and transporting temperature-sensitive materials wherein the insulated vacuum panels are employed to provide and maintain a constant temperature in the system are described.

Abstract: A composition comprising an immobilized biological membrane is provided. The functional immobilized biological membrane consists of a support structure, a metal layered onto a surface of the support structure, an alkanethiol monolayer assembled onto the metal, and a biological membrane deposited on the alkanethiol monolayer. Also provided is a method of producing the immobilized biological membrane, wherein the method involves contacting an alkanethiol with a metal surface of a support structure in forming an alkanethiol monolayer assembled onto the metal, and depositing a biological membrane onto the alkanethiol monolayer such that the biological membrane becomes associated with the alkanethiol monolayer. Uses of the biological membrane include as a sensing indicator in a biosensor, as an adsorbent in a chromatography system, and as a coating for medical devices.

Abstract: A layer of conformationally adaptive organic molecules are used in epitaxially layered structures to accommodate lattice mismatch between layers at least one of which is of a nonorganic crystalline material. Such a layer on a substrate layer may constitute the epitaxially layered structure or the conformationally adaptive organic molecule layer may be used to accommodate a lattice mismatch between two other layers or the substrate and another layer.

Abstract: There is provided a composite article which comprises a first substrate comprising a body of metal containing aluminium or galvanised steel, a second substrate and, interposed between said first and second substrates whereby to provide adhesive bonding between said substrates, an adhesive and 2.sup.1,3,4.sup.1,5,7-pentahydroxyflavone with the proviso that when either substrate is etched or anodised aluminium, the pentahydroxyflavone is not present thereon as a primer coat.

Abstract: An acrylic rubber composition comprising 100 parts by weight of acrylic rubber containing cross-linkable groups and 2 to 40 parts by weight of tri(2-ethylhexyl) phosphate has quite an unexpected effect on prevention of fixation of its vulcanized rubber moldings to metallic materials or resin moldings when brought into direct contact with the latter due to the presence of tri(2-ethylhexyl) phosphate in the acrylic rubber containing cross-linkable groups.

Abstract: A masking tape for preventing the formation of coatings such as nickel aluminide on localized areas of a surface is formed from a tape comprising a first separating layer containing powdered metal oxide and a polytetrafluoroethylene binder; a second brazing alloy layer comprising a metal selected from the group consisting of brazing alloy, nickel, cobalt, iron, mixtures thereof, and alloys thereof in a fibrillated polytetrafluoroethylene binder; and an optional third layer comprising a powdered metal selected from the group consisting of nickel, cobalt, and iron in a fibrillated polytetrafluoroethylene binder.

Abstract: The present invention relates to an aircraft transparency including an electroconductive metal oxide coating over a rigid plastic substrate, and a polyurethane protective liner over the metal oxide coating, and more specifically to the use of a primer for adhering the metal oxide coating to the substrate and/or a primer for adhering the polyurethane protective liner to the metal oxide coating. The metal oxide primer includes a carbonate diol-based crosslinked polyurethane. The polyurethane primer is selected from the group consisting of a crosslinked copolymer of acrylic acid and substituted acrylates such as 2-ethylhexylacrylate; a crosslinked copolymer of cyanoethylacrylate and acrylic acid; and a crosslinked terpolymer of 2-ethylhexylacrylate, cyanoethylacrylate and acrylic acid.

Abstract: This invention provides a rust-proofed steel sheet for a fuel tank including an alloy layer containing at least one of Ni, Fe, Zn and Sn and deposited on the surface of a steel sheet to a thickness of 2 .mu.m per surface, and a Sn--Zn alloy plating layer consisting of 40 to 99 wt % of Sn and the balance of iron, containing not greater than 20 crystals/0.25 mm.sup.2 of zinc crystals having a major diameter of not greater than 250 .mu.m and deposited on the alloy layer to a thickness of 2 to 50 .mu.m per surface. The to-be-plated steel sheet to which the plating layer is applied has a composition consisting of C.ltoreq.0.1%, Si.ltoreq.0.1%, Mn: 0.05 to 1.2%, P.ltoreq.0.040%, Al<0.1% and if necessary, at least one of B, Ti, Nb and Cr, and the balance of Fe and unavoidable impurities. This invention provides also a production method of a rust-proofing steel sheet for a fuel tank comprising the steps of applying Ni--Fe type pre-plating to an annealed steel sheet in a quantity of 0.1 to 3.0 g/m.sup.

Abstract: A transparent electrically conductive plate contains a transparent substrate, a transparent electrically conductive layer, an ultraviolet absorbing layer disposed between the transparent substrate and the transparent electrically conductive layer and containing an organic ultraviolet absorber, and an overcoating layer disposed between the transparent electrically conductive layer and the ultraviolet absorbing layer for protecting the ultraviolet absorbing layer.

Abstract: The invention concerns a binding matrix containing a carrier material and a solid phase reactant which is adsorbed to this via anchor groups that is capable of binding to at least one free reaction partner wherein the solid phase reactant forms a dilute and essentially laterally homogeneous binding layer on the surface of the carrier material. In addition a method for the determination of an analyte in a sample solution is claimed in which a solid phase reactant is used which is a component of a binding matrix according to the present invention. In this process the specific binding reaction is preferably determined by optical reflection techniques.

Abstract: A method of forming a solder film on a metallic surface such as a pad of a metallic circuit of a printed circuit board and a lead frame of electronic parts, which is capable of forming a precise and fine pattern and which comprises selectively imparting tackiness to only a predetermined part of the metallic surface by means of a tacky layer-forming solution, adhering a powdered solder to the resulting tacky part, and then melting the solder by heating to thereby form a solder film.

Abstract: A thin silver layer is deposited on the surface of a nonconducting substrate using an electroless process. The surface is cleaned and activated in aqueous solution containing stannous tin. The silver is deposited as a colloidal material from an aqueous solution of a silver-containing salt in the absence of an electric current, but in the presence of a deposition control agent. Optionally, the silver layer is stabilized with an aqueous solution of a platinum-group metal and/or gold. The resulting silver layer is uniform and of 2-2000 .ANG. thickness; it strongly adheres to the substrate.

Abstract: A heat insulating film comprises a plastic film, a surface metal layer coating the plastic film, a thin metal layer coating the surface metal layer and a protective membrane layer coating the thin metal layer. The surface metal layer has crystal grains having flat upper surfaces and the thin metal layer has flat crystal grains disposed in a single grain layer and formed and overlying respective flat upper surfaces of the crystal grains of the surface metal layer. Heat rays which irradiate on the heat insulating film pass freely through the protective membrane layer but are reflected by the crystal grains of the thin metal layer. Absorption of heat rays by the heat insulating film is remarkably suppressed.

Abstract: There is provided an anodizable aluminum substrate having an increased breakdown voltage. The increase in breakdown voltage is achieved by selecting an appropriate aluminum alloy and appropriate processing parameters. Sealing the anodic film increases the breakdown voltage by decreasing corrosion. A preferred sealant is an epoxy cresol novolac having a low room temperature viscosity that cures to a highly cross-linked polymer.

Abstract: A vacuum insulation panel is comprised from a base and a cover member joined together to define an inner cavity. The cover is provided with a planar fastening surface for bonding the vacuum panel to a target surface to be insulated. A peripheral rounded corner around the fastening surface is configured to eliminate deformation of the fastening surface due to atmospheric forces arising from the evacuation of the inner cavity. The rounded peripheral corner of the cover is configured to permit lateral expansion of the cover member to accommodate lateral expansion of the base member during evacuation. The corner also adds strength to the panel cover, permitting the inner fiber glass mat to be formed with a void near the flange weld and eliminating the risk of weld contamination by the fiber glass material during assembly. The fastening surface remains planar and disposed above the outer flange after evacuation of the panel, thus providing an improved fastening surface compared to prior art vacuum panels.

Abstract: A copper foil for printed circuits of which a shiny side has resin dust resistance, excels in heat discloration resistance and rust preventiveness, and does not adversely affect the solderability and resist adhesion, and a method of treating the surface of such copper foil. The copper foil for a printed circuit comprises a first layer of zinc alloy composed of zinc and nickel and/or cobalt, formed on the shiny side surface of a copper foil, and a second layer composed of a mixture or compound of benzotriazole derivative and phosphorus compound (and silicon compound) formed on the layer. The method for treating the surface of a copper foil for a printed, circuit comprises the steps of forming a first layer of zinc alloy composed of zinc and nickel and/or cobalt be electroplating on the shiny side surface of a copper foil, and forming a second layer by immersing it in an aqueous solution of benzotriazole derivative and phosphorus compound (and silicon compound).

Abstract: An ink composition is provided for forming an ultra-thick thick film which is suitable for conducting heat laterally from a heat generating device supported on a substrate. The ink composition is formulated to enable the ultra-thick thick film to be formed as a single layer, such that only a single print, dry and fire cycle is required to form the film. Advantageously, ultra-thick thick films having thicknesses of about 125 micrometers (about 0.005 inch) and greater can be formed by a single layer of the ink composition.

Abstract: A method for making multilayer laminates having at least one exposed layer of copper foil. The exposed layer of copper foil is covered with a adhesively attached protective metal sheet made of a copper prior to being laminated.

Abstract: A vacuum insulated panel having high thermal insulating value and long vacuum life, and a method of making such a panel are disclosed. The panel is formed of peripherally welded metal wall members which define a cavity within which, in one embodiment, a compressed block of particulate material is disposed. The particulate material, in this embodiment, serves as a barrier to radiant thermal transmission through the panel, acts as a getter to maintain the vacuum in the panel, and supports the walls of the panel against collapse when the cavity is evacuated. The vacuum insulated panel can be covered with a polyurethane foam insulating material. According to a further embodiment of the invention, the filler within the cavity is a sandwich comprising a compressed layer of particulate material suspended between two layers of fiberglass.

Abstract: An electromagnetic wave absorber comprising at least one of a unit film as a multilayered film comprising a resin layer (A) optionally containing a pigment and a layer (B) applied onto the resin layer (A), selected from a group consisting of a metal layer, an alloy layer and a partly oxidized layer of the metal layer or the alloy layer, and having a film thickness of 1 nm to 50 nm.

Abstract: A weather-resistant strip roofing material having improved corrosion-resistant properties includes a strip of stainless steel which is pre-treated by an aggressive pickling process and/or a chemical activating process prior to applying a hot-dip tin coating, The pre-treatment of the stainless steel strip produces superior alloying between the stainless steel and the tin coating which reduces flaking of the tin coating.

Abstract: The object of the present invention is to provide an aluminum plate for fabrication which has an excellent formability, easy degrease after fabrication, coating properties, and less tendency of flawing, in which the aluminum plate for fabrication which is plated, and coated with a lubricant containing (A) a fatty acid ester of polyol, (B) an alkaline or alkaline metal salt of sulfonate, and (C) a controlling agent, and having saponification value of 20 or more.

Abstract: A copper foil for printed circuits having a rust-preventive and heat-discoloration resistant coat, comprising a first layer of zinc or an alloy or a compound or a composition including zinc mainly, and a second layer including a silane coupling agent and phosphorus or a phosphorus compound, said second layer being positioned on the first layer. A method of producing a copper foil for printed circuits comprising the steps of treating the shiny side of a copper foil in a manner of cathode electrolysis in an alkaline solution including zinc ions and chrome ions, or providing the shiny side of a copper foil with a thin plating layer of zinc or a zinc alloy, and thereafter applying onto the treated surface of the copper foil a solution including a silane coupling agent and phosphorus or a phosphorus compound.

Abstract: Improved via-filling compositions for producing conductive vias in circuitized ceramic substrates, particularly multilayer substrates, without cracking and/or loss of hermetic sealing. The via-filling compositions comprise pastes containing a mixture of (a) ceramic and/or glass spheres of substantially- uniform diameter between about 0.5 and 6 .mu.m, (b) conductive metal particles or spheres having a maximum dimension or diameter between about 1/3 and 1/4 of the diameter of the ceramic and/or glass spheres, and (c) a binder vehicle. The formed conductive via bodies comprise a uniform conductive skeletal network of sintered metal particles densely packed within a uniform matrix of the co-sintered ceramic and/or glass spheres, which matrix is hermetically fused and integrated with ceramic layers forming the wall of the via in the ceramic circuit substrate.

Abstract: Foil strip conductor comprising a continuous tape of dielectric material placed adjacent to and facing an equally wide band of a conductive material like e.g. copper foil on one side, and another, wider, dielectric tape facing the conductor on its opposite side, the overlapping edges of the wider of the two tapes being folded around the edges of the conductor and the first mentioned dielectric tape at the same time, and in the process being bonded to the outside surface of the first mentioned tape.

Abstract: A vacuum insulated panel having high thermal insulating value is described together with a method of making such a panel. The panel is formed of peripherally welded metallic wall members which define a cavity within which a solid compressed block of particulate material is disposed. The particulate material, preferably an activated carbon black, a silica gel or a combination thereof, serves as a barrier to radiant thermal transmission through the panel, acts as a getter to maintain the vacuum in the cavity, and, with proper density, supports the walls of the panel against collapse when the cavity is evacuated. In one embodiment of the invention, the vacuum insulated panel is covered on one side with a polyurethane foam insulating material.

Abstract: A tape carrier having a connection function prepared by etching a metal foil to form an conductive pattern comprising outer leads and inner leads on a starting tape carrier and then providing, by plating, the connection portion of at least one group of said outer and inner lead groups with nodules for connecting said at least one group of the leads to a mating conductive pattern via the nodules.

Abstract: A modular computer system is disclosed that includes a self-contained work-slate unit having a housing comprising a dense layer forming an external surface of the housing, a first layer of woven structural fiber material overlaying the relatively high density layer, a layer of closed cell foam material overlaying the first layer of structural fiber material preferably woven, a second layer of woven structural material overlaying the layer of closed cell foam material, a layer of electro-magnetic shielding material overlaying the second layer of woven structural material and a third layer of woven structural fiber material overlaying the layer of electromagnetic shielding. The first, second and third layers of woven structural fibers, the layer of electro magnetic shielding and the layer of closed cell foam are permeated with a thermoset resin for binding the respective layers of the composite housing together.

Abstract: A recording medium lubricated with a thin film of a substituted N-acyl sarcosine. The lubricant is dissolved in a volatile organic solvent (preferably hexane) and coated onto the recording medium. A particularly preferred lubricant is N-oleoyl sarcosine.

Abstract: A multilayer wiring substrate which includes a glass ceramic section, a wiring layer section having a plurality of wiring layers electrically insulated from each other by a polyimide material, and an intermediate layer made of an inorganic material and arranged between the ceramic section and the wiring layer section.

Abstract: This invention provides a highly corrosion-resistant, colored thin film-coated steel sheet having excellent press-processability and spot-weldability, which comprises a plated steel sheet, a first layer of a sparingly soluble chromate film formed on surface(s) of the plated steel sheet and having a water soluble content of 1 to 30%, a Cr.sup.6+ /Cr.sup.3+ ratio of 0.01 to 1.0 and a total chromium build-up of 10 to 150 mg/m.sup.2 on one surface, and a second layer of a 0.3 to 5 .mu. thick solid coating film formed of an organic solvent-type coating composition, the solid coating film being comprised, based on the weight of the nonvolatile content, of(a) a urethanated epoxy ester resin having a number average molecular weight of 300 to 100,000: 30 to 90%,(b) a hydrophilic polyamide resin having a polymerization degree of 50 to 1,000: 5 to 40%,(c) a silica powder having an average particle diameter of 1 to 100 .mu.

Abstract: The invention concerns three-layer composites with their plastic core so uniformly enriched with an appropriate percentage by volume of a ferrosilicon with an appropriate particle size that the composites can be securely joined to each other and to sheets of metal alone by resistance welding. The property applies to composites with either a viscously elastic or an impact-resistant core.

Abstract: The present invention relates to a process for surface treatment for cathodic electrodeposit coating of a zinc-plated or zinc alloy-plated steel sheet comprising coating and drying a protective coating material on said steel sheet chromate-treated beforehand, to form a protective film before subjecting the sheet to the cathodic electrodeposit coating, which comprises coating a protective coating material having as a principal constituent of film-forming organic component a block isocyanate-containing prepolymer containing in one and the same molecule respectively at least one blocked isocyanate group, hydroxyl group, and tertiary amono group and containing 10-100 parts by weight of silica sol relative to 100 parts by weight of said prepolymer, in an amount of 0.3 g-4 g/m.sup.2, and then heat-drying the same.

Abstract: The invention provides a high-purity electroaluminum layer having a purity of greater than 99.99% and, preferably, a thickness of 10 to 20 .mu.m which serves as a gas barrier layer, particularly for hydrogen, oxygen, tritium and water vapor, for metallic materials and nonmetallic materials such as glass, quartz, ceramic and cermets with an electroconductive surface as well as for conductive plastics. By post-treatment, the electroaluminum layer can be compacted. The electroaluminum layer is precipitated by electroplating from aprotic oxygen-free and anhydrous electrolyte media of the general formula M.sup.I X.2AlR.sub.3.nLsm, wherein M.sup.I is an alkali metal ion or a quaternary onium ion, X is a halogen ion, preferably F.sup.- or Cl.sup.-, R is an alkyl radical, preferably CH.sub.3, C.sub.2 H.sub.5, C.sub.3 H.sub.7 or C.sub.4 H.sub.9, Lsm is an aromatic solvent molecule, preferably toluene, ethyl benzene, xylene or a mixture thereof, and n=0 to 12, at a bath temperature of 50.degree. to 110.degree. C.

Abstract: A decorative and protective coating is provided on articles by a composite of a dry metallized layer on the substrate, a substantially transparent base coating of a synthetic resin formulation, a decorative metal layer hereon and a substantially transparent top coating of a synthetic resin formulation. As a result, the metallic layer is visible through the top coating to provide the desired metallic appearance, and the thin metallic deposit on the surface of the substrate is visible through both of the resin coatings in the event that the continuity of the metallic layer is ruptured during use. The coatings are produced by dry metallizing the surface of the article to provide the thin metallic deposit, electrostatically spraying the base coating thereon and thereafter curing the coating. Dry metallizing the base coating to provide the decorative metallic layer and then depositing the top coating thereon and effecting its curing.

Abstract: A bonded body of aluminum and electroconductive polymer, said aluminum having a surface to which said polymer is bonded, and mainly having (HOO) face (H=1,2,4) as a crystal face at said surface.

Abstract: A compliant sealing material with low or no gas permeability and low spring rate is made by coating a metal such as gold, on the surface of a polymer sheet. The metal acts as a complete gas barrier on an atomic level, and the polymer provides structural integrity and mounting attributes without detrimentally increasing compliance. A small number of metal atoms injected at a moderate energy into the near surface of the polymer act as link sites for joining subsequent lower energy atoms forming an impermeable layer. The total heat delivery to the polymer is minimized thereby preserving integrity and continuity. The material is particularly useful in micromechanical devices where high flexibility is needed with complete sealing.

Abstract: A porous metallic material of the present invention is constructed of a laminate consisting of an expanded metal and a fibrous metallic fiber both of which are pressed to be joined to each other under pressure. This porous metallic material is excellent in bending strength and workability. The porous metallic materials may be laminated to a honeycomb structural element and a rigid plate so as to form a porous structural material. To this porous metallic material may be also laminated a decorative layer so as to form a porous decorative sound absorbing material. The present invention provides the above-mentioned products and method for manufacturing the same.

Abstract: Disclosed herein is a process for producing electroconductive fibrous shaped-articles comprising the steps of:soaking water-absorptive fibrous shaped-articles in a palladium hydrosol containing a cationic surfactant, an anionic surfactant, a non-ionic surfactant or a mixture thereof, and after (i) drying the thus treated shaped-articles, (ii) washing the thus treated shaped-articles with water or (iii) washing the thus treated shaped-articles and then drying, subjecting the thus obtained, shaped-articles on which colloidal palladium is adsorbed to chemical plating, thereby obtaining the electroconductive fibrous shaped-articles of which fibers thereof are subjected to metallizing plating.

Abstract: Composite sheet material, used for shielding magnetism and electromagnetic waves, principally made of an electrodeposited iron foil, as the core, with a thickness of at least 10 .mu.m which is applied on either side surface thereof a plating layer with a respectively predetermined metal, and of, a covering layer which is formed of a suitable sheet-like material and which is to be laminated on at least one of the two plating layers through the medium of an adhesive layer. A variety of products utilizing this composite sheet material as an essential elements thereof which stretches over a wide field wherein magnetic and electronic shield is required, for example: magnetic-card holders; magnetic-card protection cases or boxes; envelopes and containers for keeping and transporting magnetic recording media; wallpapers for various special rooms, etc.

Abstract: An amorphous metal laminate sheet having an excellent electromagnetic wave-shielding effect including a core layer containing at least one amorphous metal sheet layer which may be plated with an electroconductive metal, at least one flexible polymeric coating layer laminated on at least one surface of the amorphous metal-coating core layer, and optionally, at least one reinforcing fibrous fabric layer.

Abstract: A corrosion resistant coating and process comprises the following layers applied in sequence over a ferrous metal substrate: a micro-throwing nickel-zinc alloy plating; galvanically protective zinc metal plating; a zinc-nickel alloy plating containing 5 to 30 weight percent nickel; and an organic coating such as paint. The coating is preferably used with steel fasteners wherein it also reduces installation torque and drill time.

Abstract: A novel method is provided for producing high technology decorative materials that incorporates both computer-aided design and semiconductor processing. The high technology decorative materials thereby produced also make use of microscopic diffraction gratings for generating a dynamic spectral pattern of changing colors when exposed to ambient light such as sunlight, incandescent light, and the like. The decorative materials comprise a semiconductor substrate (10), at least one patterned coating (14) formed on one major surface (12) of the substrate and a transparent layer (28) formed thereover. The patterned coating comprises a material that is capable of being patterned to the dimensions required to diffract incident visible light and includes a series of lines (26) having an arrangement, spacing and width such that incident light will be diffracted in a pleasing pattern. A suitable jewelry mount (44) may be attached to individual pieces formed from the substrate.

Abstract: A surface-coated steel strip having improved corrosion resistance as well as a good surface appearance is disclosed. The steel strip comprises a zinc alloy layer plated on the steel strip, and a passive-state layer 0.005 to 1.0 .mu.m thick which is applied on top of the plated zinc layer. A chromate film and/or an organic resin layer may be applied thereon.