Abstract: A method and composition for depositing SiO.sub.2 on substrates by chemical vapor deposition are provided wherein aminoxysilane reagents are utilized. These aminoxysilane reagents pyrolyze at about the same temperatures as organometallic reagents, permitting multiple alternating layers of silicon dioxide and metal oxides to be formed at the same operating temperature.

Abstract: A method of fabricating an optical coating includes a layer pair, with a layer of a first optical material having a first refractive index and a first nominal thickness and a layer of a second optical material having a second refractive index and a second nominal thickness. The first layer is deposited, then its actual thickness is measured. A target thickness for the second layer is determined so that the optical properties of the combined actual first layer and target second layer are substantially the same as the optical properties of the combined nominal first layer and nominal second layer. The second layer is then deposited. Where the optical coating further includes a plurality of layer pairs, the steps of depositing, measuring, determining, and depositing are repeated for each of the layer pairs in the pairwise approach.

Abstract: A process for formation of tin oxide film is described, wherein a glass substrate is heated to a high temperature and then tin oxide film is formed on the surface of said substrate by a thermal decomposition oxidation reaction caused by bringing a tin compound or a mixture of a tin compound and a fluorine-containing compound into contact with the surface of said glass substrate, and wherein prior to the formation of tin oxide film, said glass substrate is preliminarily brought into contact with a solution of chloride of a metal belonging to Group IVB of the Periodic Table so that a layer of a composition containing the chloride of the Group IVB metal as the primary component is formed on the surface of said substrate.

Abstract: A tin oxide coated article characterized by including a transparent, haze-free tin oxide coating on a substrate, such as glass. The tin oxide coating is formed by deposition from a liquid coating composition including an organotin compound, such as an alkyltin trichloride, and a haze-reducing additive, such as a fluorocarboxylic acid or acid anhydride.

Abstract: Transparent, non-iridescent, infrared-reflecting glass window structures which are haze-free are provided herein. These structures comprise a glass sheet, an infrared-reflecting tin oxide coating on one major surface of the sheet, and an iridescence-reducing tin oxide coating on the opposed major surface of the sheet. The iridescence-reducing tin oxide coating is particularly characterized by being haze-free by virtue of its being made by contacting said sheet with monophenyltin trichloride in an oxygen-containing atmosphere.

Abstract: This disclosure teaches a new article of manufacture. The article includes a glass substrate and an adherent coating on the glass substrate of a gray color. The coating on the glass substrate has a composition selected from the group of glass coating compositions consisting essentially of oxides of cobalt, manganese, and copper, wherein the metal content of the metal oxide composition contains 45-60% by weight of cobalt, 26-39% by weight of manganese, and 12-20% by weight of copper. The actual weight percent of each metal is adjusted so that all metals are within their stated ranges when providing a total of 100% by weight metal. The coated glass substrate can be made into a product which has particular utility as a tinted architectural or a tinted automotive glass product.

Abstract: An improved liquid coating composition for producing high quality, high performance fluorine-doped tin oxide coatings by chemical vapor deposition includes the reaction product of a reactive fluorine dopant compound and an organotin compound, preferably 1-30 wt. % of the fluorine dopant and 70-99 wt. % of the organotin compound. The preferred liquid coating composition includes the reaction product of trifluoroacetic acid and monobutyltin trichloride.

Abstract: Apparatus for pyrolytically forming a metal compound coating on an upper face of a hot glass substrate 1 in sheet or ribbon form comprises conveyor means 2 for conveying a the substrate along a path also indicated at 1 in a downstream direction 3, a roof structure 5 defining a coating chamber 6 opening downwardly onto the path 1 and means 7 for discharging coating precursor material into the chamber 6. Upstream of the coating chamber 6 there is an antechamber 25 which communicates with the coating chamber 6 via an entry slot 24 which is defined in part by the path of the substrate 1, and via which gas can be caused to flow into the coating chamber 6 so as to form (when the apparatus is in use) a blanket layer which covers the upper face of the substrate 1 along a first part of the length of the chamber 6. Means 26 is provided for controllably preheating the gas forming the blanket layer.

Abstract: This specification is directed to a method of improving the conductivity and lowering the emissivity of a doped tin oxide film on the surface of a soda lime silica glass sheet. The method includes the steps of heating the glass sheet to a temperature in a range from 1000.degree. F. to 1250.degree. F. Thereafter, a fluorine-containing compound is applied to a surface of the heated glass sheet to react therewith to form a film in which divalent oxygen atoms and hydroxyl ions on the surface of the glass sheet are replaced with monovalent fluorine atoms. In this manner, the surface of the glass sheet is brought closer to a state of electro-neutrality and the monovalent fluorine atoms form a more stable bond with soda and silica atoms of the surface of the glass sheet. Thereafter, a doped tin oxide film is applied to the film formed on the heated glass sheet to a thickness required to give the doped tin oxide film the desired conductivity and emissivity characteristics.

Abstract: An improved process for coating the surface of a transparent refractory material such as glass with a semi-reflective film of tin oxide by depositing finely divided particles of a pyrolytically decomposable organotin compound on the surface of a substrate which has been heated to a temperature of between about 400.degree. and 650.degree. C. The finely divided organotin compound has a particle size not greater than about 20 microns. Before deposition, the organotin compound is mixed with a predetermined amount of finely divided particles of a compound containing a halogen constituent. Deposition is accomplished by suspending the mixture of both compounds in an anhydrous carrier gas which is projected onto the surface of the substrate. In an alternative process, a single compound containing both tin and halogen constituents is projected onto the surface of the pre-heated substrate by means of the anhydrous carrier gas.

Abstract: In accordance with the invention, there is provided herein an improved chemical vapor deposition method for forming fluorine-doped tin oxide coatings using a liquid coating composition which includes a reactive organic fluorine dopant and an organotin compound. The method is carried out under a defined set of process conditions such that the coating produced has a minimum and constant sheet resistance which is substantially independent of deposition temperature.

Abstract: A liquid crystal device for time-division driving comprising a plurality of picture elements arranged in a plurality of rows. Each picture element is composed of opposite electrodes, a layer of a ferroelectric liquid crystal having a volume resistivity of 1.times.10.sup.9 .OMEGA..cm or larger, disposed between the opposite electrodes and placed under bistability condition, and an insulating layer disposed on at least one of the opposite electrodes. The liquid crystal device is adapted to driving according to a time-division driving scheme wherein a writing signal is applied row by row and cyclically to the picture elements, and a particular row of picture elements to which the writing signal has been applied in a writing cycle retain their written states until a writing signal is applied to the particular row in a subsequent writing cycle.

Abstract: A process for the deposition, on an optical substrate, of an antireflection coating capable of being engraved. In the process, metal is evaporated in a reactive atmosphere within the enclosure of an evaporator under vacuum and then deposited on the substrate. Previously cleaned substrates are disposed within the enclosure, which is then evacuated until a pressure of at most 1.5 .mu.Pa (10.sup.-8 torr) is obtained. Pure oxygen is injected at a regulated throughput in such a manner that the pressure is within the range of from 2 to 4 mPa, preferably 3 mPa (2.times.10.sup.-5 torr). A heated boat which is disposed within the enclosure and contains chromium is unmasked. The chromium evaporates at a temperature such that a coating of chromium oxide grows in thickness on the substrates at a rate of 0.1 to 0.5 nm per second, preferably 0.2 nm per second.

Abstract: A continuous, chemical vapor deposition method for producing a coated glass article is disclosed. A glass substrate is advanced continuously, while hot, past first and second treating stations. A non-oxidizing atmosphere is maintained in the vicinity of the first treating station, while an oxidizing atmosphere is maintained in the vicinity of the second station. A non-oxidizing gas which contains a silane, e.g., SiH.sub.4, is directed from the first treating station against a surface of the glass to form a silicon coating on that surface. An oxidizing gas which includes a metal compound in the vapor phase is directed from the second station against the silicon-coated surface of the article.

Abstract: The present invention relates to a method of producing an optical recording medium containing a thin film photosensitive layer provided on a board. When subjected to an optical energy, the optical density of this thin film photosensitive layer varies. Such optical recording medium is formed by the method of (a) mixing tellurium dioxide TeO.sub.2 and a reducing substance or substances, (b) heating the obtained mixture and causing part of the TeO.sub.2 to react with the reducing substance to obtain a sintered body and (c) obtaining a TeO.sub.2 compound thin film photosensitive layer on a board by evaporation and deposition, using the sintered body obtained in steps (a) and (b) as the vacuum deposition source. The optical recording medium possessing such a TeO.sub.2 compound thin film photosensitive layer may be used as both a one-time recording type medium and as an erasable type medium, capable of erasing the previously recorded information and recording new information in its place.

Abstract: A novel process for producing a double refraction plate is disclosed. According to the process, a transparent dielectric material is directed to and deposited on a substrate from an oblique direction. Above all, for controlling the retardation of the resulting double refraction plate, a polarized light having a plane of polarization in a specific direction relative to the substrate is directed to the substrate through the variable phase plate and the light reflected from the substrate is observed through the variable phase plate, as the dielectric material is deposited from an oblique direction.

Abstract: Glass layers are deposited according to a prescribed refractive index profile. The multilayer component is divided into precalculated parts, which are rectangular in shape and which have the optical properties of cylinder lenses. The optical properties of such structural components can be determined within wide limits by the nature of the deposition.

Abstract: The specification discloses a low-temperature process for depositing a layer of a conductive oxide of a chosen metal, such as tin oxide, on the surface of a substrate while simultaneously avoiding damage to the substrate. The process comprises exposing the substrate to a selected vapor phase reactant containing the chosen metal, such as tetramethyl tin, in the presence of neutral, charge-free oxygen atoms formed in a manner which avoids the generation of charged particles and high energy radiation that would damage the substrate. The oxygen atoms react with the vapor phase reactant to form the conductive oxide, which deposits as a layer on the surface of the substrate. In a preferred process embodiment, the neutral oxygen atoms are photochemically generated. This process is especially useful for depositing a layer of a transparent conductive oxide on the surface of a radiation-hardened device while maintaining the radiation-hardness of the device.

Abstract: A process for producing an aerosol stream, which is conducted through an essentially aerosol-free vapor and/or gas stream to prevent undesirable precipitation of particles contained in the aerosol stream, is augmented by additionally employing thermophoresis. For this purpose, the vapor and/or gas stream is heated to a temperature which is higher than the temperature of the aerosol stream. Thermophoresis then causes the particles to be held within the aerosol stream.

Abstract: A method and apparatus are provided for producing fine quality pnictide films by vacuum evaporation and molecular beam deposition. A pnictide source, preferably phosphorous, is heated to produce a continuous supply of vapor species, preferably P.sub.4. The vapor species is cracked by a heated tungsten wire positioned adjacent the pnictide source to produce P.sub.2 molecules. A second tungsten wire cracker is located adjacent a substrate to prevent the recombination of P.sub.2 molecules into P.sub.4 molecules. The P.sub.2 molecules are deposited on the substrate and condense into amorphous pure phosphorous shiny red films. A separate source of alkali metal intercalate, preferably KC.sub.8, may also be heated to provide an alkali metal vapor for producing films of alkali metal polypnictide films, preferably KP.sub.x where x is equal to or greater than 15, to be deposited on the substrate.

Abstract: Chalcogenide suboxide, particularly tellurium oxides TeOx, are possible to reversibly change optical characteristics by changing power of irradiating light to repeat recording and erasure.If the TeOx is x<1, high sensitivity is obtained but the characteristic of film is greatly deteriorated due to the environment.In accordance with this invention there is proposed a film which can be used as an optical recording medium having a high sensitivity and a high stability under the conditions that a partial pressure of oxygen is in the range from 1.times.10.sup.-4 -9.times.10.sup.-3 Torr and a high frequency power for forming a plasma in the range of 50-500 W and wherein the TeOx film is formed by metal tellurium vapor passing through a plasma of oxygen gas.

Abstract: In a transparent molded segmented mirror having individual sectors on a transparent molding and comprising a myriad of reflecting surfaces at the rear side of the mirror away from the viewer, said surfaces located to produce, in the eyes of the viewer, a virtual image, or separate virtual images from separate portions of such molded mirror, there being zones separating the reflecting surfaces, the improvement comprising:(a) a material coating said zones and which includes a light absorber,(b) such material having approximately, the same index of refraction as the transparent molding,(c) whereby undesirable reflections from said zone are substantially reduced, because light impinging thereon cannot be reflected, but is only absorbed.

Abstract: An optical product having a thin film on the surface which is obtained by subjecting a mixed gas of oxygen and a hydrocarbon compound having a double bond to plasma polymerization in the presence of an optical product, thereby forming on the surface of the optical product a thin film of a reaction product of said plasma polymerization. Said optical product having a thin film on the surface has excellent resistance to fogging due to adhesion of water drops when used in gas phase, excellent resistance to adhesion of air bubbles when used in liquid phase, high resistance to being stained by oils and fats and an excellent removability of stains due to oils and fats.

Abstract: In a transparent molded segmented mirror having individual sectors on a transparent molding and comprising a myriad of reflecting surfaces at the rear side of the mirror away from the viewer, said surfaces located to produce, in the eyes of the viewer, a virtual image, or separate virtual images from separate portions of such molded mirror, there being zones separating the reflecting surfaces, the improvement comprising:(a) a material coating said zones and which includes a light absorber,(b) such material having approximately, the same index of refraction as the transparent molding,(c) whereby undesirable reflections from said zone are substantially reduced, because light impinging thereon cannot be reflected, but is only absorbed.

Abstract: A method for improving the adhesion of metal to metal oxide films is disclosed, along with improved coated articles produced thereby. The method comprises depositing between a metal and a metal oxide layer a metal containing layer having affinity for both the metal and metal oxide layers . . .

Abstract: The invention is a process for putting down coatings of aluminum oxide on optical surfaces using electron-beam deposition in an oxygen-enriched atmosphere. Particularly good results are obtained when oxygen is flowed over or directed at the surface to be coated. Such coatings have extremely low losses compared to many conventional optical coatings and are particularly useful for anti-reflection coatings on various devices. In particular, for optical devices with indium phosphide surfaces operating at wavelengths near 1.3 .mu.m, the optical properties of aluminum oxide coatings are near optimum for anti-reflection coatings and the thermal expansion characteristics are a close match to those of indium phosphide.

Abstract: This disclosure describes a novel method of coating a substrate, e.g., a transparent glass substrate, with a very thin inorganic coating of predetermined varying composition, e.g. an electrically-conductive tin oxide coating. The coating is carried out in such a way that quality control problems associated with leakage of the coating reactants from the reaction zone are virtually eliminated. The resulting coating can exhibit excellent non-iridescent properties even at thicknesses well below on micrometer.

Abstract: A method for producing a directed aerosol stream from gaseous and/or vapor phase reactants by conveying the gaseous and/or vapor phase reactants including vaporous silicon tetrachloride, water vapor, and at least one vaporous, fluorine-containing hydrocarbon to a reaction site; reacting the reactants at the reaction site in a flame-free chemical reaction to produce an aerosol composition constituted of solid silicon dioxide particles which include silicon dioxide doped with fluorine, whereby the optical index of refraction of the solid silicon dioxide particles is reduced; and causing the aerosol composition to flow as an aerosol stream from the reaction site and immediately surrounding the aerosol stream with a moving, essentially aerosol-free, gas and/or vapor stream to form a directed aerosol stream enveloped in the aerosol-free stream.

Abstract: In a transparent molded segmented mirror having individual sectors on a transparent molding and comprising a myriad of reflecting surfaces at the rear side of the mirror away from the viewer, said surfaces located to produce, in the eyes of the viewer, a virtual image, or separate virtual images from separate portions of such molded mirror, there being zones separating the reflecting surfaces, the improvement comprising:(a) a material coating said zones and which includes a light absorber,(b) such material having approximately, the same index of refraction as the transparent molding,(c) whereby undesirable reflections from said zone are substantially reduced, because light impinging thereon cannot be reflected, but is only absorbed.

Abstract: A laser or other light beam is directed onto an optical substrate while an optical coating is being vacuum deposited thereon. The laser has a wavelength at or near that at which a reduced absorptance of the coating is desired. In one embodiment, the substrate is heated electrically. Thin film optical coatings having a substantially lowered absorptance are made in this manner.

Abstract: The optical transmission of an amorphous, carbonaceous film having diamond-like properties is enhanced by the ion implantation thereof with carbon ions. The film preferably is between about 30 and 110 nanometers in thickness and is implanted with a dosage of between about 10.sup.12 and 10.sup.14 carbon ions per square centimeter.

Abstract: A liquid coating composition for producing high quality, high performance fluorine-doped tin oxide coatings by chemical vapor deposition includes 1-30 wt. % of a reactive fluorine dopant compound and 70-99 wt. % of an organotin compound.

Abstract: Transparent, haze-free tin oxide coatings on glass are obtained by chemical vapor deposition of liquid monophenyltin trichloride. The method includes the steps of vaporizing liquid monophenyltin trichloride and contacting the vapor in an oxidizing atmosphere with a substrate at an elevated substrate temperature, preferably about 450.degree. to 600.degree. C. The tin oxide coating on glass produced by this method has a haze which is less than 1%, and is substantially equal to the haze value for uncoated glass.

Abstract: The present invention relates to a method for producing a directed aerosol stream by a flame free reaction which is conducted while enveloped within an aerosol free gas and/or vapor stream. It is particularly suitable for use in coating systems, as it permits economical coating without so-called wall deposits.

Abstract: Fine quality catenated phosphorus thin films are produced in a high vacuum evaporator. Heated tungsten wire crackers are provided above the phosphorus boat and below the substrates. Amorphous pure phosphorus shiny red films have been deposited on glass, metallized glass and GaP and exhibit an optical edge at 2.0 eV. Films of KP.sub.x where x is equal to 15 or greater than 15 are produced by utilizing a second baffled boat source containing the potassium graphite intercalate, KC.sub.8. Addition of a nickel evaporation source provides nickel-doped polyphosphide films.

Abstract: A chemical vapor deposition method for forming fluorine-doped tin oxide coatings uses a liquid coating composition which includes an organic fluorine dopant and an organotin compound. In the method, the gas stream contains sufficient water vapor such that its relative humidity at 18.degree. C. is about 6% to 100%. A preferred liquid coating composition is monobutyltin trichloride and trifluoroacetic acid.

Abstract: A transparent conductive optical device comprising a transparent conductive layer of a metal oxide on a substrate wherein the degree of oxidation of the transparent conductive layer is differentiated depending on the proximity to the substrate so that the degree of oxidation adjacent to the substrate is higher than the rest of the layer.

Abstract: A process for coating a wide moving web with the product of chemical reactants first brought into contact at a point proximate the glass surface. The process comprises a primary distribution of reactants (across the width of the substrate) through a row of small apertures, then a segregation through a secondary passage to a reaction zone at the surface of the substrate. Reactant distribution pipes are advantageously positioned and shaped to form only a gradual increase in width of the reactant flow path as they enter the reaction zone.

Abstract: A method and apparatus are disclosed for depositing a metal-containing film on the bottom surface of a glass ribbon by chemical vapor deposition whereby a turbulent stream of vaporized coating reactant is delivered to the bottom surface of a glass ribbon at a sufficient temperature to cause deposition of a film on the surface, and unreacted and undeposited coating reactant and reaction by-products are immediately exhausted.

Abstract: A method for producing thin films of chalcogenides of the rare earths characterized by introducing a rare earth metal vapor into an atmosphere not containing oxygen, but containing a gaseous chalcogen as well as hydrogen, at a total pressure about 1.times.10.sup.-4, giving rise to a reaction which forms a gaseous rare earth chalcogenide. The gaseous rare earth chalcogenide is then deposited as a thin film on a substrate heated to 200.degree. C. to about 400.degree. C.

Abstract: This invention is directed to a method for producing thin, transparent metal oxide films of very uniform thickness through the pyrolysis of a metal salt which comprises spraying an atomized mist of the metal salt into a fuming chamber operating at a sufficiently high temperature to vaporize the mist and then drawing the fumes out of said chamber into contact with the surface of a substrate which is at a temperature essentially equivalent to that of the fumes at the exit end of said chamber, that temperature being sufficiently high to thermally decompose said metal salt and deposit a film of metal oxide on the substrate.

Abstract: In a solar cell comprising first and second members opposite other and an amorphous silicon lamina interposed between the first and the second members, a predetermined one of the first and the second members comprises a transparent conductive layer having an average particle size between 300 and 900 angstroms. The transparent conductive layer is positioned between the amorphous silicon lamina and a transparent insulative substrate (11) directed towards light when the first member is transparent while the transparent conductive layer is overlaid on the amorphous silicon layer and directed towards the light when the second member is transparent. The transparent conductive layer may comprise indium oxide, tin oxide, indium tin oxide, or the like.

Abstract: A process and apparatus for forming a glass pane having an upper filter band, and possibly both an upper and lower filter band. The glass pane may comprise a lamina of a laminated safety glass for use as a windshield of a vehicle.In the process filter strips are applied to a glass sheet as the glass sheet is moved through a chamber. The filter strips are applied as a family of filter strips which extend continuously along the glass sheet in the direction of its movement. The filter strips of the family are spaced apart laterally. Each filter strip may extend along a straight path, or the filter strips may be of repeating arcuate outline or of sineshaped outline, for example. The filter strips between a pair of marginal filter strips are of a width that may be greater than the width of the marginal strips, and the filter strips may vary in width along their continuous length.

Abstract: A coating having low absorbance of laser energy is provided on optical components substrates by molecular beam epitaxial growth techniques.The growth conditions prevent contamination of substrate and coating with water and carbonaceous gases. The method of coating has the following steps:arranging the substrate in a vacuum chamber,cleaning the component while holding the pressure below 10.sup.-4 millibar and the partial pressure of H.sub.2 O and carbonaceous gases below 4.10.sup.-9 mb,applying at least one layer of a coating material to the substrate, while holding the pressure below 10.sup.-8 mb and the partial pressure of H.sub.2 O and carbonaceous gases below 4.10.sup.-9 mb.The optical component may be lenses, windows, or reflectors e.g. of ZnSe, GaAs, glass, etc. The coating may be of selenide e.g. ZnSe, etc.

Abstract: A method of producing glass sheets having good transmission behavior in the visible spectrum range and having good reflection behavior as regards heat radiation. A transparent substrate S is coated by cathodic atomization with, successively, a first oxide layer 1 comprising indium oxide, tin oxide or mixtures thereof, a layer 2 consisting of silver in a thickness of 5 to 50 n, a metallic layer 3 selected from aluminium, titanium, tantalum, chromium, manganese and zirconium in a thickness ranging from 1 to 5 nm and applied directly to the silver layer 2 for the purpose of maintaining the condition thereof, and a final protective oxide layer 4 of indium oxide, tin oxide or mixtures thereof.

Abstract: This disclosure is directed to a method of making an infrared reflective glass sheet. The method has the following steps. The glass sheet formed of soda/lime silica glass is selected. The glass sheet is heated to a temperature in a range from 900.degree. to 1100.degree. F. If desired, the sheet glass selected may be selected at the time it is being manufactured in a glass manufacturing operation and it would have upon leaving a process such as a float process a temperature in a range of 900.degree. to 1100.degree. F. An organic/tin ion-containing, chlorine-free compound is applied to a surface of the glass sheet. Application of this compound forms a tin oxide seal coating having a columnar grain microstructure on the surface of the glass sheet. A coating of tin oxide is applied to the tin oxide seal coating. The coating of tin oxide is formed from the decomposition of butyltin trichloride.

Abstract: This disclosure is directed to a method of making an infrared reflective glass sheet. The method has the following steps. The glass sheet formed of soda/lime silica glass is selected. The glass sheet is heated to a temperature in a range from 900.degree. to 1100.degree. F. If desired, the sheet glass selected may be selected at the time it is being manufactured in a glass manufacturing operation and it would have upon leaving a process such as a float process a temperature in a range of 900.degree. to 1100.degree. F. An organic/metallic ion-containing, chlorine-free compound is applied to a surface of the glass sheet. Application of this compound forms a metallic oxide seal coating on the surface of the glass sheet. A coating of tin oxide is applied to the metal oxide seal coating. The coating of tin oxide is formed from the decomposition of butyltin trichloride. The glass sheet is cooled to room temperature after application of the metal oxide seal coating and the tin oxide coating thereon.

Abstract: A glass panel designed to block the transmission of selected radiation, especially heat rays, is produced by coating a face of a first glass pane with a layer of a material (e.g. metal) reflecting or absorbing the rays to be blocked, spacedly juxtaposing a second glass pane with the coated face of the first pane, introducing a preferably transparent synthetic resin such as polymethylmethacrylate or silicone rubber in a flowable state into the intervening space, and letting the resin harden in that space. The resin may be injected through an inlet port in a profiled frame temporarily surrounding the assembly, this frame also having a venting aperture at a level above that of the inlet port.

Abstract: A process for the chemical vapor deposition of oxidic particles by oxidat of halides or halide mixtures wherein dinitrogen monoxide is used as the oxidizing agent. The reaction is carried out at comparatively low temperatures of between 900.degree. and 1150.degree. C., but results in high yields.

Abstract: A process for making semi-reflective metallized glasses containing an anchoring layer, said anchoring layer being deposited by vacuum evaporation from an alloy comprising nickel in an amount of from about 40-70% by weight, chromium in an amount of from about 5-31% by weight, and molybdenum in an amount of from about 3-28% by weight. The anchoring layer may also be deposited from an alloy of nickel, chromium, molybdenum and at least one metal selected from the group of tungsten, iron and cobalt, in an amount of from about 55-75% by weight nickel, iron and cobalt, from about 5-31% by weight chromium, and from about 3-28% by weight molybdenum and tungsten. The anchoring layer is deposited upon the surface of a support glass by vacuum evaporation after which one or more layers may be deposited upon this anchoring layer.