Abstract: A valuable document is protected from counterfeiting by applying an extremely thin layer of metal to the document at predetermined locations. The thin layers of metal form a "ghost image" which changes in appearance as the angle of view is varied, making the valuable document easily recognizable by a lay observer. The portions of the valuable document covered by the thin layers of metal reflect ultra-violet and infra-red light making a photocopy of the valuable document strikingly different in appearance than the original document. Counterfeiting the document by any method is extremely difficult as the process of applying the thin layers of metal is one of high technology, not readily available to the public.

Abstract: The method for producing foil paper and foil board with a bright surface, by first metalizing a transfer-carrier, applying a compatible tacky dress to the metalized carrier, pressing the metalized carrier at its tacky surface against a base of paper or board; then separating the carrier from the metalized portion transferred to the base of paper or board, and curing it at an elevated temperature.

Abstract: An organic coating with slits or holes in a predetermined pattern is disposed on the surface of an electrically insulating substrate on which electrode leads have been formed. A paste of an electrically resistive material fills the slits or holes and is dried at 120.degree. to 140.degree. C. The surface of the paste is flush with that of the coating after which the paste preliminarily baked in a stream of oxygen at 500.degree. to 600.degree. C. while the coating is burnt off. The paste is fully baked at 800.degree. to 1000.degree. C. to form a heating resistor elements.

Abstract: A decorative film laminate is disclosed comprising: (a) a substantially transparent plastic film; (b) a thin metallic layer having one side attached to one side of the film by means of an adhesive layer; and (c) a pressure sensitive adhesive layer attached to the other side of the metallic layer, said adhesive layer being optionally covered on its exposed surface by a release liner. The film laminate is formed by applying the metallic layer to one side of the plastic film by transfer lamination followed by attachment of the pressure sensitive adhesive layer, and, if desired, release liner, to the other side of the metallic layer.

Abstract: A coating for hulls of ships to be applied underwater to areas of the hull not accessible when ship is in dry dock. The means for applying the coating may take several forms: (1) a multilayered tape system having impregnated in or carrying an antifoulant and having an adhesive tape operable underwater on one side; (2) a sponge like layer having an antifoulant paint or coating liquid which can be squeezed onto the hull; (3) the use of a water soluble sponge having mixed therein microspheres of resin and pigment and microspheres of activator material such that when the microspheres or crushed, the pigmented resin, which may contain an antifoulant, and the activator are mixed and cured to form a coating on the hull while the sponge material will dissolve away when exposed over its surface to seawater.

Abstract: Disclosed is a release coating provided by a coating composition having an acrylic functional component which has been polymerized by electron beam radiation. In a preferred embodiment the coating composition does not contain polysiloxane. In another preferred embodiment some of the acrylic functional component has one acrylic group per molecule and some has three or more acrylic groups per molecule before polymerization.

Abstract: The present disclosure is concerned with solvent free or very low solvent coating compositions suitable for use on flexible sheet form substrates particularly textile substrates. The composition comprises a urethane group-containing prepolymer with OH or CONH.sub.2 terminal groups mixed with a urea or melamine formaldehyde resin and a stable aqueous polymer dispersion or solution. The composition may also contain small amounts of an organic solvent. The coating can be applied to the substrate by direct or reverse coating techniques.

Abstract: A transferable flocked fiber design or sticker material which comprises a releasably flocked fiber base including fibers releasably flocked at one end to one major surface of a release support base sheet in upright position by means of a release adhesive layer; and a thermoplastic and pressure-sensitive synthetic resin layer applied to the other end of the flocked fibers. The entire area of the fiber-flocked surface of the release support base sheet is colored or printed or a selected area of the surface is colored or printed in a desired design or pattern and hot melt resin in the form of particles or pellets is sprinkled over the colored or printed surface of the release support base sheet. A method for preparing the releasably flocked fiber base in which a release adhesive layer is formed on one major surface of a release support base sheet, fibers are releasably flocked to the adhesive-applied surface of the release support base sheet and the adhesive-applied surface is colored or printed.

Abstract: A label for application to containers to be shipped under bottle-to-bottle contact conditions comprising a laminate structure of superposed layers of transparent film printed with indicia on the underside thereof, and adhered to an intermediate paper layer, said paper layer being adhered on its underside to a foam layer.The process for making the laminate is also disclosed.

Abstract: A plastic material which is suitable for simulating engraving on metal has a substrate which is not deformed by the heat or pressure of a hot stamping process. A sheet or layer of thermoplastic material of limited thickness is laminated to the upper surface of the substrate. The opposite side of the thermoplastic material is covered by a containment film. Thus, within the limits of manufacturing tolerances, the layer of thermoplastic material may be subjected to any amount of pressure to produce a debossment which is no deeper than the depth of the limited thickness when a hot stamping die bottoms on the non-deformable substrate. Therefore, there is a much more predictable end product.

Abstract: A label for application to containers to be shipped under bottle-to-bottle contact conditions comprising a laminate structure comprising a film layer superposed over a layer having indicia printed thereon which in turn is superposed upon a foam layer.The process of making the laminate is also disclosed.

Abstract: A process for preparing an epoxy impregnated laminate having an adhesive surface conductive to electroless plating wherein the adhesive surface is applied from a transfer sheet as a substantially uncured phenolic thermosetting resin/nitrile rubber polymer adhesive layer which is thereafter cured by subjecting the laminate to heat and pressure curing conditions.

Abstract: Methods of restoring or repairing damaged areas in the coating of high performance reflective glass composed of a thin, transparent film such as a metal and/or a metal oxide deposited on a vitreous substrate. Damages to the film such as scratches, abrasive rubs and the like are covered with a compatible filler to substantially restore the light transmittance characteristics. The repaired areas are covered with a protective coating to increase their durability.

Abstract: Production of a magnetically and visibly detectable two-layer structure by coating a first layer including a binder with a visibly distinct magnetic material in a dispersion comprising a partial solvent for the binder and selectively applying a magnetic field to cause the magnetic material to migrate into the first layer.

Abstract: A method of producing a stretchable coated fabric having waterproof or like characteristics of particular application to the manufacture of protective clothing is proposed wherein plural layers of a coating material are applied to a carrier element having release characteristics relative to the material of the layers, and such layers are laminated to a stretchable textile fabric comprising continuous filament yarns by utilizing the tension in the carrier element to provide a laminating pressure.

Abstract: Polystyrene pellets are continuously supplied to extrusion means which continuously forms an elongated element whose form and shape is stabilized by hydraulic cooling means through which the element is moved, following which the element is dried and heated and then supplied between heated pressure rolls along with a tape on one surface of which a coating has been applied and which includes a decorative film, the coating being in face contacting relation with a surface of the elongated element, the temperature of the pressure rolls and the velocity of the movement of the tape and elongated element therebetween being correlated in such manner as to cause a decorative film to be removed from the tape and deposited on the elongated element, following which the element and tape are engaged and transported away from the pressure rolls into a cutting station at which the element is severed into desired lengths.

Abstract: A polarizer of particularly small thickness for an electro-optically activated cell, wherein a polarization foil is provided between an adhesion layer causing the adhesion to the cell and a protective layer providing protection from external influences. The small thickness of the polarizer is achieved by the use of a particularly thin protective layer consisting of a curable lacquer of the type which is used for coating packaging foils in the foodstuffs packaging industry, thereby reducing the thickness of the polarizer provided with protective layers on both sides to much less than 50 .mu.m, without the polarizer sacrificing its outstanding resistance to chemical and mechanical influences.

Abstract: Process for depositing a thin conducting metal layer on an insulating support comprising the steps of applying on said support a layer of nonconducting ink loaded with a powder of metal, alloy or metallic derivative, heating said support and said layer to harden said ink layer, treating the surface of said layer so as to lay the particles forming said powder bare and immersing said thus coated support into a bath containing, in the form of particles, the conducting metal to be deposited, under conditions which are known per se and such that said conducting metal particles are deposited on the powder particles laid bare, wherein is used as insulating support a support made of an inorganic material provided with an enamel coating and the ink used being a compound formed of an enamel and a carrier, the melting point of said enamel being substantially equal to, and preferably slightly lower than, the softening point of the outer layer of said coating.

Abstract: The present disclosure is concerned with an improved method of reverse coating textile sheets with storage stable polyurethane top and adhesive coats which are formulated to have improved resistance to deformation under heat and pressure. At least one of the coats is formulated from a diisocyanate, a high molecular weight dihydroxy compound and a mixture of at least one low molecular weight diol with a low molecular weight monoalkanolamine. The coatings are applied in the usual reverse coating manner, i.e. the top coat is applied to a release substrate from solution; dried; the adhesive coat is applied from solution onto the dried top coat; and the textile substrate is laminated to the adhesive coat.

Abstract: A method and apparatus is disclosed for producing a laminated sheet wherein a thin film laminate is provided which is formed of a thin film laminating or substrate sheet with a heat reactivatible adhesive layer on one side thereof to produce a combined thickness of 11/2 to 3 mils. On the other side of the laminating or substrate sheet a paper carrier sheet is adhesively attached for stiffening the thin film laminating sheet. The thin film laminate or substrate is folded to form a pouch and the sheet to be laminated is placed therebetween. The pouch is then processed in an oven-type laminator to produce the laminated sheet with attached carrier sheet. Finally, the carrier sheet is stripped away to produce the final product. By use of an integral carrier sheet, the relatively thin film laminating sheets may be conveniently used in conventional oven laminators without the need for special supporting techniques.

Abstract: A process for manufacturing transfer sheets is disclosed in which short fibers are temporarily stuck to a base sheet to form a short fiber layer to which two kinds of adhesives are applied to a desired design or letter to be transferred. When the transfer sheet thus made is put on a clothes or the like and heat and pressure are applied, the short fibers are transferred to the clothes only where coated with the adhesive.

Abstract: A laminating material such as a fibrous glass formed as a woven fabric or chopped strand mat which has been coated with a plastic resin on both sides thereof. The plastic resin is applied so that it does not permeate the fibers of the reinforcing material but is only adhered on the surfaces thereof. The resin coating is maintained intact on the reinforcing material by incorporation of a fine light mat, referred to as a carrier, in the resin coating.The reinforcing material can be made by initially laying down a resin coating on release film, together with the carrier. After processing of the resin to its final tackiness required for laminating, the resin sheet is adhered to one or preferably both surfaces of the laminating fabric.

Abstract: This application relates to textile sheets which have been coated with polyurethanes and to a process for coating said textile sheets wherein a solution of polyurethane is applied as a top coat to a release substrate and then a bonding coat is applied before application of the textile material. The polyurethane which is used as a top coat is prepared by reacting a dihydroxyl compound with a molecular weight between about 600 and 4000 and a mixture of at least 2 diols with a molecular weight between 62 and 450 with at least one organic diisocyanate. The invention overcomes the difficulty of the top coat being lifted from the release substrate in numerous areas while other areas remain firmly attached giving the so-called "hoar-frost" effect.

Abstract: Process for coating flexible substrates which comprises applying a finishing polyurethane-polyurea elastomer coating to a release surface, applying an undercoat of a polyurethane-polyurea elastomer having a different composition than the finishing coating on the finishing coating and applying a flexible substrate to the undercoating.The polyurethane-polyurea elastomers used as the finishing coat are prepared by forming a polyether-polyol prepolymer in which the polyol consists essentially of a diol or a mixture of diols and which prepolymer is subsequently reacted with an aromatic diamine.The polyurethane-polyurea elastomers used to form the undercoat are obtained by reacting the aromatic diamine with a polyether-polyol prepolymer in which the polyol consists essentially of one having an hydroxyl functionality of at least 3 or a mixture of polyols in which at least one of the polyols has a hydroxy functionality greater than 2 in a sufficient amount to increase the resistance to flexing.

Abstract: In the method for making an article having a replicated coating with a durable dielectric overcoat. A master is formed having a surface to be replicated formed thereon. A parting compound such as silicon oil is placed on the surface while under a vacuum. An optical coating is formed in reverse order, with the protective coat first and the reflective coat last, on the coated surface while in the vacuum under a low temperature to cause initial curing of the protective coat without reevaporation of the silicon oil. Thereafter, the optical coating on the master is post-cured in air at an elevated temperature to cause final curing and hardening of the protective coat. After the post-curing has been completed, the replicated part, if desired, is transferred to the part to carry the same and is mounted thereon by a sealing plastic.

Abstract: The production of electrical machines and more specifically to assembling the stator of a slotless electrical machine. The essence consists in splitting the process of assembling the slotless stator of an electrical machine into such production operations and in fulfilling these operations in such succession that it is possible to create an active distributed layer from separate coil groups beyond the yoke of the slotless stator being assembled and then to transfer simultaneously all coil groups of the assembled active distributed layer onto the surface of said yoke.

Abstract: A web of indeterminate length carrying thermally transferable material, usually referred to as hot stamp tape, is structured to provide an improved simulated wood grain pattern on a substrate after transfer to the substrate of transferable portions of the tape. The web or tape may be provided in sheet form. The structure comprises "ticks" or discrete linearly oriented spots of material having low specular reflectivity coated on a matte carrier sheet, as by printing, and a layer coated thereon to provide the top layer of the transferred material, which replicates the surface of the carrier sheet and the coated ticks or spots.

Abstract: A method for the production of a material for printed circuits is disclosed. A temporary base is coated by electroplating with a thin, unbroken and unpatterned metallic layer having a thickness less than 17.mu.m and the free surface of said metallic layer is bonded to a final insulating base. The temporary base is thereafter removed and the desired wiring pattern is produced by a process comprising etching of the metal layer. A material for use in production of printed circuits is also disclosed comprising a temporary base which is coated by electroplating with a thin, unbroken and unpatterned metal layer having a thickness less than 17.mu.m. Said material can comprise a final, insulating base bonded to the free surface of the thin metal layer.

Abstract: A method of producing an imprinting device having a supporting member and an impression conforming film thereon comprising depositing a thin, conformable elastomeric coating on a web from a mixture of resinous elastomer, filler and liquid solvent, drying the coating to form a film; applying a coating of wet ink on one surface of the film and bonding the film to the supporting member and the method of producing the thin flat conformable film.

Abstract: A web of indeterminate length carrying thermally transferable material, usually referred to as hot stamp tape, is structured to provide an improved simulated wood grain pattern on a substrate after transfer to the substrate of transferable portions of the tape. The web or tape may be provided in sheet form. The structure comprises "ticks" or discrete linearly oriented spots of material having low specular reflectivity coated on a matte carrier sheet, as by printing, and a layer coated thereon to provide the top layer of the transferred material, which replicates the surface of the carrier sheet and the coated "ticks" or spots.

Abstract: Artificial leather is produced by applying a dope comprising urethane prepolymers containing terminal isocyanate groups, an amine catalyst and a foam stabilizer onto a releasing carrier sheet, exposing the resulting coating layer to a moisture-containing gas under controlled conditions, laminating the coating layer onto a backing material and stripping off the releasing carrier sheet. The resulting artificial leather has a cellular structure of polyurethane microfoam in adhesion with the backing material and an adhesion strength of 100 to 10,000 g/cm of width.

Abstract: An improved method of finishing leather by transferring a finish coating, at least the outer stratum of which comprises a thermoplastic, adhesive acrylic polymer, from a release layer bearing the finish coating to the leather. The leather to be coated (which may be supported on an appropriate backing layer) and the release layer are pressed into a sandwich-like assembly with the concurrent application of sufficient heat and pressure to transfer substantially the entire finish coating to the surfaces of the leather and the backing layer juxtaposed therewith. Transfer of the finish coating is effected without the application of any adhesive material or "tie coat" prior to pressing the coating into contact with the leather, by virtue of the thermoplastic, adhesive characteristics of the acrylic finish coating per se.The method may be carried out batch-wise employing discrete backing and release layers for the transfer of finish coatings to individual leather pieces.

Abstract: A method for the production of a material for printed circuits is disclosed. A temporary base is coated by electroplating with a thin, unbroken and unpatterned metallic layer having a thickness less than 17.mu.m and the free surface of said metallic layer is bonded to a final insulating base. The temporary base is thereafter removed and the desired wiring pattern is produced by a process comprising etching of the metal layer. A material for use in production of printed circuits is also disclosed comprising a temporary base which is coated by electroplating with a thin, unbroken and unpatterned metal layer having a thickness less than 17.mu.m. Said material can comprise a final, insulating base bonded to the free surface of the thin metal layer.