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| Number | Title | Issue Date |
| 4037014 | Semiconductor absorber for photothermal converter A layer of electrically insulating material is coated on a reflector. Granular semiconductor particles are uniformly dispersed in the layer of electrically insulating material. The combination forms an efficient absorber for high temperature photothermal ... | 07/19/1977 |
| 4035819 | Method of making a zinc sulphide ceramic body and a zinc sulphide ceramic body made thereby A method of making a zinc sulphide ceramic body having a low electrical resistance characterized by sulphurizing a starting oxide material consisting essentially of zinc oxide and from 0.01 atomic % to 6.0 atomic % of at least one oxide of a metal selecte... | 07/12/1977 |
| 4034128 | Production of a color developing record sheet containing metal-modified novolak resin particles Rheologically stable aqueous dispersions of metal-modified novolak resin particles are prepared by grinding an aqueous mixture of the metal-modified novolak resin and anionic polymeric dispersing agent in the presence of a small amount of an organo-phosph... | 07/05/1977 |
| 4027074 | Process for producing ferroelectric crystalline material Lead germanate, Pb5 Ge3 O11, or lead germanate/silicate in which up to 2/3 on a molar basis of the germanium has been substituted with silicon, can be formed from a glassy state to a ferroelectric state by a simple anneali... | 05/31/1977 |
| 4025339 | Electrophotographic film, method of making the same and photoconductive coating used therewith An electrophotographic film which is not only capable of being utilized for the same purposes as conventional xerographic and electrofax members but it also capable of being used in the same manner as silver halide emulsion photographic films, that is, wi... | 05/24/1977 |
| 4024546 | Metal-coated carrier for recordings and process for determining the oxygen-attached aluminum contents in the coating A carrier medium for recording comprises a ribbon of insulating material and a metal coating deposited thereon in a thickness of at least 250 A which coating is adapted to be electrically seared for producing writing trackings. The coating is predominantl... | 05/17/1977 |
| 4020261 | Copy sheet for use in pressure sensitive manifold sheet In a copy sheet for use in a pressure sensitive manifold sheet comprising support having coated thereon a layer of electron accepting reactant material, an improvement which is characterized in that said electron accepting reactant material is a calcined ... | 04/26/1977 |
| 4019873 | Coated hard metal body A wear-resistant shaped body comprises a core of a hard metal body and a surface coating on the core, with the hard metal body core containing at least one carbide suitable as a hard material and at least one binder metal. The surface coating is composed ... | 04/26/1977 |
| 4018631 | Coated cemented carbide product Improved adherence of oxide coatings on cemented carbide substrate containing tungsten and cobalt is attained by forming on the substrate a coating selected from carbide, nitride, carbonitride and mixtures thereof, diffusing tungsten and cobalt from the s... | 04/19/1977 |
| 4019168 | Bilayer thin film resistor and method for manufacture A composite thin film resistor is disclosed, including an electrically inert substrate upon which is deposited a nickel-chromium alloy thin film, and an overlying second thin film -- which is initially deposited as metallic tantalum. In the final product ... | 04/19/1977 |
| 4017661 | Electrically conductive transparent laminated window An optically clear, electrically conductive, transparent coating on a substrate and a method of coating are disclosed. The coating comprises a first transparent layer deposited as TiOx on the substrate, where x preferably has a value within the... | 04/12/1977 |
| 4015050 | Plastics film with an aluminium phosphate coating An organic, plastics film having a coating on at least one surface of said film of an aluminium phosphate, the aluminium phosphate being produced from halogen-containing complex aluminium phosphates.... | 03/29/1977 |
| 4010307 | Coating of paper, cardboard and the like and composition A paper or cardboard coating composition comprising an aqueous dispersion containing binder and pigment in which 5-30 percent by weight of the pigment are particles dimensioned within the range of 0.05-0.3 microns of a non-film forming synthetic polymer a... | 03/01/1977 |
| 4005232 | Coatings of metal phosphates on metals or glass A metal phosphate coating is applied to a glass article. A liquid composition containing at least in part an organic component and a metal compound having a metal with an atomic number of 12, 14, 20-32, 39-50, 56-80, 90 or 92 and an oxyacid of phosphorus ... | 01/25/1977 |
| 4004052 | Process for producing non-porous coating for corundum substrates A process for producing a non-porous coating for corundum substrates with a corundum content of 90 to 100% the process comprises applying a barium, calcium or strontium alumosilicate glaze to the substrate, followed by heat treatment of the substrate at a... | 01/18/1977 |
| 4000346 | Optically transparent, electrically conductive coating An electrically conductive and optically transparent coating comprising a very thin, noble metal oxide film applied to a nonconductive, transparent substrate, said noble metal selected from the group consisting of ruthenium, rhodium, osmium and iridium. T... | 12/28/1976 |
| 3998992 | Bonding of rubber to metal The bond strength of composite articles of rubber adhered to ferrous metal substrates through an adhesive is substantially improved at ambient and elevated temperatures by using as the adhesive an interpolymer comprising a conjugated diene and a heterocyc... | 12/21/1976 |
| 3998987 | Electrostatic recording element An electrostatic recording element comprising a conductive layer and a surface layer electrostatically chargeable upon application of an electric field, said surface consisting of an upper recording layer and a lower insulating layer, and said recording l... | 12/21/1976 |
| 3997343 | Material for electrostatic recording An electrostatic recording element suitable for use as a receiving sheet in an electrostatic transfer process, consisting essentially of: a translucent, non-conductive base selected from the group consisting of paper, a polyester film, and a polyvinyl flu... | 12/14/1976 |
| 3997700 | Fireproof glasswork The invention relates to a fire screening glazing panel and a method for forming the panel. The panel is composed of at least two structural plies, at least one of which is a vitreous sheet, and a layer therebetween composed at least in part of a heat con... | 12/14/1976 |
| 3996408 | Carbon-graphite brushes for electric machines and method for manufacturing same The present invention relates to heavy-current electrical engineering, and more particularly to carbon-graphite brushes characterized by high wear resistance and low adhesive capacity of the brush dust, said brushes being intended for operation in commuta... | 12/07/1976 |
| 3993847 | Silica in adhesive The bond strength of composite articles of rubber adhered to ferrous metal substrates through an adhesive is substantially improved at ambient and elevated temperatures by using as the adhesive an interpolymer comprising a conjugated diene and a heterocyc... | 11/23/1976 |
| 3991235 | Method of coating metal substrates Polymeric materials are disclosed which comprise a hydroxyalkyl ester of acrylic acid or methacrylic acid, a monoethylenically ,ଲ-unsaturated carboxylic acid, and an alkyl ester or esters of acrylic and/or methacrylic acid are partially neutr... | 11/09/1976 |
| 3989874 | Resistance material with colloidal AlOOH In a noble-metal containing resistor paste, there is added a quantity of colloidal aluminum oxide hydroxide (AlOOH) in order to make an upward adjustment in the TCR of the fired resistor film. The additions of AlOOH have only a small effect on the resisti... | 11/02/1976 |
| 3976810 | Process for anion removal from orthophosphate coatings The process of coating an organic polymeric shaped article with aluminum orthophosphate, using an anion compound as a source of aluminum, and topcoating with a polymer is further improved to enhance barrier properties under moist conditions. The aluminum ... | 08/24/1976 |
| 3975573 | Polyester film coated with an inorganic coating and with a vinylidene chloride copolymer containing a linear polyester resin A polyester film having an inorganic coating and an overcoating which contains 1. a vinylidene chloride copolymer, and 2. a minor amount of a linear polyester resin prepared by condensing a glycol and a polyfunctional acid, at least 70% of the polyfunctional a... | 08/17/1976 |
| 3974316 | Fireproof glasswork The invention relates to a fire screening glazing panel and a method for forming the panel. The panel is composed of at least two structural plys, at least one of which is a vitreous sheet, and a layer therebetween composed at least in part of a heat conv... | 08/10/1976 |
| 3971874 | Optical information storage material and method of making it An optical information storage material having a transparent base and a film deposited on the base, the state of which can be changed between a low optical density state and a high optical density state by the application of electrical, optical or thermal... | 07/27/1976 |
| 3962525 | Hot topping Ingot head surface finish is improved by providing a coating of mould flux on the molten metal-contacting surface of hot top lining slabs.... | 06/08/1976 |
| 3962489 | Copy sheet and method of printing the same A copy sheet that is capable of being printed by a reaction which requires the presence of three components. One of these components is carried by a printing master and another of these components is supplied to the copy sheet immediately prior to the pri... | 06/08/1976 |
| 3959565 | Tin oxide coating A sheet of glass coated with SnOx by intermittent spraying of a mixture of materials in non-aqueous solution and in an oxidizing atmosphere, while maintaining the glass at a fixed temperature by supporting the glass in molten liquid at a contro... | 05/25/1976 |
| 3954659 | Method of forming stable dispersions of alumina Stable aqueous dispersions of alumina are formed at concentrations of above about 25% Al2 O3 by dispersing alumina dried with a strongly acidic solution. Said stable aqueous dispersions of alumina are stable for at least 2.5 months.... | 05/04/1976 |
| 3950597 | Powder compositions of polynary oxides and copper This invention relates to improved powder compositions useful for forming resistors on dielectric substrates; the compositions comprise certain polynary oxides of silver and/or copper ions having a pyrochlore-related crystal structure, plus dielectric mat... | 04/13/1976 |
| 3950586 | Electrical insulator materials for use in micro-circuit construction Insulator material for microcircuit construction comprising a glaze composition intermixed with a proportion of refractory oxide particles sufficient to make the fluidity of the material considerably less than the fluidity of the glaze composition by itse... | 04/13/1976 |
| 3949131 | Photomasks with antistatic control In high resolution lithography, resolution impairment sometimes occurs due to dust collecting on the mask. The dust is often attracted to the mask by static electricity. The solution proposed is to coat the entire photomask with a transparent, electricall... | 04/06/1976 |
| 3949146 | Process for depositing transparent electrically conductive tin oxide coatings on a substrate Certain volatile organotin compounds are volatilized in a heated carrier gas stream and brought into contact with a preheated substrate to be coated in an atmosphere containing oxygen. The process is particularly applicable to deposition of tin oxide on g... | 04/06/1976 |
| 3949147 | Protection of turbine casings Shaped refractory articles, especially turbine casing liners, are formed of a refractory fibre/watersoluble binder composition, the hardness, strength and density of which do not vary across the bulk composition.... | 04/06/1976 |
| 3939028 | Protection of carbon articles Carbon articles, particularly carbon electrodes, are protected against corrosive attack in use by fusing material to the article, or applying material to the carbon article which under the conditions of its use is capable of fusing to the carbon article, ... | 02/17/1976 |
| 3936583 | Prevention of corrosion in metals A method of protecting an article having at least a surface layer of an alloy of iron and/or nickel which contains at least 1 per cent of chromium, against high temperature oxidation, by contacting the article with a solution or a suspension of a borate a... | 02/03/1976 |
| 3934070 | Recording sheet and color developer therefor A color developer is disclosed which, when contacted with a color former, is capable of forming a distinct color, the color developer comprising a metallic compound of an aromatic carboxylic acid. Suitable metals are, for example, those of the following g... | 01/20/1976 |
