Abstract: In an optical recording medium, an under layer is formed between an even pattern of a substrate and a recording layer, and said under layer is made of a high polymeric material which can be melted, sublimated, or decomposed at a lower temperature than the melting point, the sublimating point, or the decomposing temperature of said recording layer. Accordingly, said under layer can relax the thermal shock transferred from said substrate into said recording layer, and the deformation of said substrate can be prevented, even through a laser beam for playback is repeatedly radiated onto said recording layer, and said optical recording medium has a larger recording sensitivity than the recording sensitivity of an optical recording disc of a prior art.

Abstract: Disclosed herein are free-standing, pinhole-free, ultrathin polyether sulfone films having thicknesses of about 400 angstroms or less and a process for preparing them. The films find particular utility in separatory applications.

Abstract: Disclosed herein are pinhole-free, ultrathin, free-standing cellulose ester films having thicknesses of 400 angstroms or less and a process to prepare them. The films find particular utility in separatory applications.

Abstract: This invention relates to multi-compositional, multiphase composite compositions comprising as phases thereof (i) an electronically conducting or semi-conducting substrate, (ii) an inorganic oxide composition layer in proximity to at least a portion of the surface of said electrically conducting or semi-conducting substrate and (iii) an inorganic crystalline molecular sieve composition layer upon at least a portion of the surface of said inorganic oxide composition layer. The inorganic crystalline molecular sieve composition layer is grown by crystal growth upon at least a portion of the inorganic oxide composition layer surface. The different phases of the composite compositions are substantially contiguous and exhibit a distinct compositional and/or structural heterogeneity of one phase to another.

Abstract: A semiconductor element heat-treatment member has a Si-SiC body and a SiO.sub.2 coating formed on the surface of the Si-SiC body so as to cover the Si-SiC body. The SiO.sub.2 coating has a thickness ranging between 20.ANG. and 100,000.ANG..

Abstract: A method is disclosed of forming a pyrolytic tin oxide coating on a face of a hot glass substrate during transport of the glass through a coating station into which a coating precursor solution containing a tin compound is sprayed so that the glass is contacted by material from which the tin oxide coating is formed by pyrolysis. The coating is formed by spraying a solution containing at least two additives. These additives and their amounts, and the thickness to which the coating is formed, are selected so that the coating contains doping atoms and has an emissivity in respect of infra-red radiation having wavelengths greater than 3 micrometers of at most 0.3 and a specific internal haze factor of at most 1.5.

Abstract: Disclosed herein are free-standing, pinhole-free, ultrathin, blended, cellulose nitrate films having thicknesses of about 400 angstroms or less and a process to prepare them. The films find particular utility in separatory applications.

Abstract: Metal adhesion to a polyolefin substrate is improved by subjecting the substrate to a plasma treatment with aliphatic hydrocarbon vapors.

Abstract: This invention relate to an optical information recording medium, characterized by having an organic thin film recording layer containing at least one of compounds expressed by the general formula (I), (II), (III) and (IV): ##STR1## (wherein in the above formulas, A, B, D and E represent a substituted or non-substituted aryl group; R.sub.1 to R.sub.8 may be the same or different and represent hydrogen atom, halogen atom or alkyl group; Y represents a divalent residue having atomic groups necessary for forming a five-membered ring or six-membered ring; m, n and l represents 0, 1 or 2; ans X.sup.

Abstract: A colored article comprises a workpiece having a surface producing a color by light interference. The surface is defined by forming a reflective surface and coating the reflective surface with a composite layer of SiC and SiO.sub.2 having an SiO.sub.2 ingredient ratio of 5 to 80% by weight and a thickness of 200 to 3000 .ANG. or with a composite layer of Si.sub.3 N.sub.4 and SiO.sub.2 having an SiO.sub.2 ingredient ratio of 5 to 80% by weight and a thickness of 400 to 4000 .ANG..

Abstract: Flat glass is disclosed, bearing a tin oxide coating layer which is at least 200 nm in thickness. In order to promote a uniform visual appearance across the coated area, the expected grain area of a representative sample of the tin oxide coating crystals measured in units of 10.sup.-4 .mu.m.sup.2 is numerically equal to a value of at least 0.4 times the layer thickness measured in nanometers.

Abstract: Disclosed herein are free-standing, pinhole-free, ultrathin polyimide films having thicknesses of about 400 angstroms or less and a process to prepare them. The films find particular utility in separatory applications.

Abstract: A multi-layer barrier film having heat seal properties to permit both fin and lap sealing is disclosed. The film comprises a pair of coextrusions that are adhesively bonded to one another.

Abstract: An optical information recording carrier comprises an optical recording layer provided on a transparent substrate, a film coating layer laminated with out adhesion on said optical recording layer, and further a fixing layer laminated thereon to fix said film coating layer.

Abstract: The invention relates to a transparent glass board for use in document copying machines as the copying glass on which each sheet of original documents is placed and, in the case of copying machines of automatic document feed type, is forced to slide. To ensure good copying and smooth sliding carriage of original paper sheets, a transparent antistatic coating layer using tin oxide and/or indium oxide is formed on one or each of the top and back surfaces of a transparent glass, and a transparent lubricative coating layer using an organic silicon compound having isocyanate groups attached to Si atom is formed on the top side of the glass plate so as to provide a top surface with which each sheet of documents comes into contact. The antistatic layer has a thickness of 300-1500 .ANG. and the lubricative layer has a thickness of 300-2000 .ANG..

Abstract: An optical recording medium comprising a recording layer on a substrate is more durable when an intermediate layer of a composition comprising a rare earth element oxide, silicon oxide, and silicon nitride is formed between the substrate and the recording layer.

Abstract: A method for bonding a cubic boron nitride sintered compact to other cubic boron nitride sintered compact or to a body of shank material is disclosed. The method comprises forming a Ti layer of 0.01-1 .mu.m in thickness over a bonding interface between two cubic boron nitride sintered compacts or between a cubic boron nitride sintered compact and a body of shank material, forming a layer of Ni or Cu over the Ti layer to a thickness of 0.01-5 .mu.n, putting together the two cubic boron nitride sintered compacts or the cubic boron nitride sintered compact and the body of shank material with a 10-1,000 .mu.m foil of Al, Al-Ni alloy or Ag--Cu--In alloy being placed over the boding interface, and heating the cubic boron nitride sintered compact structure to temperatures above the meeting point of the metal foil and not exceeding 750.degree. C. in an inert atmosphere or in a vacuum.

Abstract: A nonablative optical recording element comprising a light-absorptive layer supported upon a dimensionally stable substrate in which the light-absorptive layer is a continuous, morphologically stable, amorphous, thin layer of an eutectic alloy of Te with at least one thermally conductive metal.

Abstract: This disclosure is directed to a heat reflective glazing including a glass sheet having two generally planar parallel surfaces or sides with a multilayer coating on one of the side, and a method of producing such glazing. The side of the glass sheet having the multilayer coating thereon is designated as the film or coated side while the other side is designated as the glass side of the glass sheet. The multilayer coating comprises a first silicon-containing coating formed directly on the glass surface, a titanium nitride-containing coating overlying the first coating, a second silicon-containing coating covering the titanium nitride-containing coating, and an optional abrasion resistant coating, e.g., comprising tin oxide, on the second silicon-containing coating. The process for producing the coatings is a chemical vapor deposition process preferably carried out during the production of glass by the float process.

Abstract: A multidielectric mirror, in particular for the mid infrared, in which the last optical layer of a multidielectric stack is constituted by a composite layer including a thin protective surface layer of a material of amorphous structure together with a high index and very low absorption dielectric layer, with the thicknesses of these two layers being designed to obtain maximum reflectance given the indices of these materials. The protective layer is preferably made of amorphous hydrogenated silicon. The invention is applicable, in particular, to making carbon dioxide power lasers.

Abstract: The invention relates to a procedure for the transfer and immobilization of proteins onto a free surface formed on a chemically inert support, preferably porous glass, from a medium likely to contain them which is brought into contact with this surface. The said surface is composed of a film of a vinylpyridine polymer in which the nitrogen atom of the pyridyl moiety is substituted by an alkyl group, in particular by a methyl group; the proteins and/or the nucleic acids are brought into contact with the said surface in solution in the presence of a detergent bearing a negative charge, in particular SDS. The invention also relates more particularly to the supports coated with the said films, in particular as a monomolecular layer.

Abstract: Disclosed herein is an optical recording medium for recording informations by irradiating the optical recording medium with a laser beam to form a hole or a deformed part thereon, said optical recording medium comprising a substrate and a recording layer containing at least Te, Se and F in the amounts of from 35 to 94.9 atomic % of Te, from 5 to 25 atomic % of Se and from 0.1 to 40 atomic % of F, produced by a reactive sputtering, said Se being derived from selenium fluoride and a sputtering target of Te or a sputtering target comprising Te-Se-alloy, and a process for producing the same.

Abstract: An optical information recording medium according to the present invention is featured by its recording layer which contains a compound of tellurium (Te), selenium (Se) and nitrogen (N). The thickness of the recording layer 2 favorably ranges from about 100 angstroms (.ANG.) to about 1000 .ANG. and more favorably from 180 .ANG. to 400 .ANG.. The content of Se in the recording layer 2 favorably lies within a range from 2 to 40 atomic percent, more favorably from 10 to 30 atomic percent. The content of N is favorably to be from 2 to 20 atomic percent, and more favorably from 2 to 10 atomic percent.

Abstract: An optical recording material comprising a recording layer containing a substance with its optical properties changeable by irradiation with light in which information is recorded by irradiating the recording layer with light, said substance being an ethylene derivative having at its 1- and 2-positions heterocyclic groups which are cyclizable by irradiation with light to form a cyclohexadiene ring and thereby change the optical properties, and the other 1- and 2-positions connected to each other to form a ring.

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 invention concerns a security-marking procedure, an apparatus to sense a security marking, fiduciary documents provided with security markings, by resorting to rare-earth chelates consisting of at least two rare-earths and of which the fluorescence wavelengths vary as functions of temperature, and fiduciary document containing such chelate(s).

Abstract: A layer element comprises a base having a hydrophobic surface and, applied on this, one or more solid, thin, ordered layers of defined uniform and regular structure, in particular monolayers or multilayers, having a uniform orientation of the layer-forming molecules in one direction. The said layers are formed from a metallomacrocyclic polymer which is fusible and/or soluble in an organic, water-immiscible solvent and is of the general formula [M(Pcyc)O].sub.n, where M is Si, Ge or Sn, (Pcyc) is a complex-forming centrosymmetric polycyclic ring system, in particular a phthalocyanine ring system having hydrophobic substituents, and n is the mean degree of polymerization and is equal to or greater than 3. The novel layer elements can advantageously be produced by the Langmuir-Blodgett technique, in which a solid-like monolayer produced on a water surface from the metallomacrocyclic polymers is transferred to a substrate having a hydrophobic surface by immersion and withdrawal of the said substrate.

Abstract: The invention relates to composite thermoplastic polyester films with outstanding transparency, low surface roughness and good machinability.These films contain, in at least one outer layer, 0.1 to 1% of fine particles with a volume median diameter of between 0.6 and 1.5 micrometers.After being metallized, these films produce highly glossy films with a particularly low gloss difference between the 2 faces.

Abstract: The invention relates to composite thermoplastic polyester films with outstanding transparency, low surface roughness and good machinability. These films contain, in at least one outer layer, 0.1 to 1% of fine particles with a volume median diameter of between 0.6 and 1.5 micrometers. After being metallized, these films produce highly glossy films with a particularly low gloss difference between the 2 faces.

Abstract: Corrosion of ferrous metal and aluminum surfaces, in particular, is inhibited by a layer of an organic-metallic complex of a polyamine with a (i) metal oxide, or (ii) metallate ion, or (iii) water-soluble metallate salt, in aqueous systems having a pH greater than about 7. The polyamine contains at least four (4) amine groups, two of which are secondary amine groups. The effect of the N atoms stretched over the length of the polyamine produces a "caging effect"0 which immobilizes the oxide, or metallate ions, thus forming the protective layer. The organic-metallic complex deposited on the metal's surface forms the "amine-metallic" layer which may be either an "amine-metal oxide complex" which is a coordination complex, or, an "amine-metallate complex". The amine-metallate complex may be either an ionic complex of "amine.

Abstract: A multilayered article includes at least one periodically repeating set including a layer of amorphous crystallizable material and a layer of crystallization inhibiting material in generally superposed relationship. The layer of crystallizable material has its crystallization temperature raised by the presence of the inhibiting layer. Also disclosed are methods for the fabrication of the multilayered article.

Abstract: A logic circuit has the first electron transmission protein film made of the first electron transmission protein, the second electron transmission protein made of the second electron transmission protein having a redox potential different from that of the first electron transmission protein and glued on top of the first electron transmission film, the third electron transmission protein made of the third electron transmission protein having a redox potential different from that of the second electron transmission protein and glued on top of the second electron transmission protein film, an electrode connected to the first electron transmission protein film, an electrode having an electrical influence on the second electron transmission protein film, and an electrode connected to the third electron transmission protein film to form transistors making use of differences in redox potential among the respective electron transmission proteins for performing a logical operation for a plurality of inputs.

Abstract: An oriented polyester film having at least one surface being roughened by containing inactive particles and three-dimensional surface roughness exponents of the said roughened surface are within ranges simultaneously satisfying the following relationships (I) to (III), while the number of coarse projections is in excess of the fourth grade:0.014.ltoreq.S.DELTA.a.ltoreq.0.025 (I)5.2.ltoreq.S.lambda.a.ltoreq.13.0 (II)0.012.ltoreq.SRa.ltoreq.0.050 (III)where S.DELTA.a represents three-dimensional average gradient, S.lambda.a represents the spatial average wavelength (.mu.m) of three-dimensional surface roughness and SRa represents three-dimensional central plane average roughness (.mu.m).

Abstract: A composition of a metallic compound represented by the formula MT, and G is provided by sputtering an M.sub.x G.sub.100-x target. M is a metal selected from the group of titanium, hafnium, zirconium, and mixtures thereof. T is selected from the group of N, C, and mixtures thereof. G is a metal selected from the group of gold, platinum, and palladium. X is an integer from about 65 to about 95. Also provided are substrates coated with the composition and process for depositing the composition on substrates.

Abstract: An article of manufacture includes a substrate carrying at least two coating layers, one layer being of approximately quarter wave optical thickness, the other layer of approximately two quarter wave optical thickness, with the layers alternating between a material such as a dielectric having a first index of refraction and a second material such as a dielectric having a second index of refraction lower than the first index of refraction. These layers form a filtering system which removes narrow bands of light such as laser wavelengths by efficient reflection while permitting the remainder of the light spectrum to pass through the article. The coating layers have optical thicknesses and indices of refraction appropriate to reflect more than 99% of incident light at one or more predetermined wavelengths of light in the range of about 300 to about 1,200 nanometers and to transmit a substantial amount of all other incident light in the range.

Abstract: A thermal transfer recording medium having an improved hot-sticking resistance which comprises a thermoplastic resin film as a substrate, a thermally transferable ink layer provided on one surface of the film, and a thin layer of an inorganic substance provided on the other surface of the film. The thin layer of the inorganic substance prevents the recording medium from hot-sticking phenomenon, whereby a high speed printing is made possible.

Abstract: The invention relates to a manufactured article formed of two transparent layers, preferably one made of glass and the other made of plastic, adapted to be used as glazing for motor vehicle windows and buildings, consisting of a glass substrate onto which is applied a single-layer plastic comprising a composition of polycaprolactones, a vinyl monomer N-vinyl-2-pyrrolidone, mono-, di-, tri-, tetra-acrylic monomers, a photoinitiator, and flow control agents, reaction catalysts, solvents, plasticizers and adhesion promoters, and aliphatic polyisocyanate, which composition is distributed as a liquid with uniform thickness over the surface, which is spun and exposed to ultraviolet radiation to form the coating.

Abstract: A conventional broad-band camouflage material comprising a base layer, a reflective metal layer and a paint layer which imitates the visible and near IR spectral reflective properties of a natural background and contains binders which are transparent in the far IR range, is improved in the radar spectral range by providing the metal layer in the form of spaced squares or rectangles whose long dimension is smaller than 1/2 lambda of the largest radar wavelength used for reconnaissance and larger than 1/2 lambda of the radar wavelength used for homing missiles and bullets. The base layer consists of woven strips of polyethylene material forming squares or rectangles which are metallized on both sides and then covered with polyethylene film coated with liquid polyethylene adhesive. The adhesive fills in the spaces between the strips thus isolating the squares or rectangles from each other and preventing conductivity.

Abstract: A heat-resistant resin molded article excellent in abrasion resistance, surface smoothness, solvent resistance, durability and adhesiveness between base material and cured film, consisting of (1) a resin molded article composed of 2% by weight or more of a structural unit represented by the following structural formula ##STR1## (wherein R is a hydrogen atom, an alkyl group, an aryl group or an alicyclic group of 1 to 20 carbon atoms) and 98% by weight or less of an ethylenic monomer unit and (2) a cured film formed on the surface of said resin molded article by curing a crosslinking-curable resin material containing 30% by weight or more of at least one monomer having three or more (meth)acryloyloxy groups in one molecule, as well as a process for producing said heat-resistant resin molded article.

Abstract: A vinylidene fluoride resin film having (1) a crystal melting point of 182.degree. C. or higher as measured by differential scanning calorimeter in nitrogen atmosphere at a temperature elevation speed of 10.degree. C./min; (2) a diffraction point corresponding to (1 1 .zeta.) of the .alpha.-phase crystal in the wide angle X-ray diffraction photograph; and (3) an orientation degree of the crystal of 0.85 or more when measured under irradiation of X-ray incident vertically on a major surface of the film. The vinylidene fluoride resin film is obtained by inflation accompanying melt necking stretching. The film has improved mechanical properties and heat-stability and is also adapted for use as a base film of a metallized film.

Abstract: Articles exhibiting fabricated structures with nanometer size scale features (nanostructures), typically a device comprising nanostructures of a functional material on or in a substrate of dissimilar material, are produced by a method employing a substrate base or coating and a thin layer serving as a lithographic mask or template, consisting of a self-assembled ordered material array, typically a periodic array of molecules such as undenatured proteins, exhibiting holes, thickness or density variations. It is possible to produce complex structures containing large numbers of nanometers scale elements through a small number of simple steps.

Abstract: A data storage medium is provided which is suitable for production or replication by moulding, casting, embossing or a similar process against a tool. The data storage medium has a surface or a surface region which is strongly absorbent of at least a predetermined band of wavelengths of electromagnetic radiation. The surface or surface region includes a layer of a material which undergoes a large volume change or degradation and has a regular, sinuous textured surface pattern which is free from undercutting. The textured surface pattern is coated with a thin film of platinum or a platinum alloy, the thickness of the overcoating preferably being such as to give no more than 10% transmission of incident radiation.A method of storing information on such a data storage medium is also disclosed. The data storage medium may be prepared in blank form for use as the consumer desires, or it may be pre-recorded in part or in entirety.

Abstract: An oriented film is prepared by crosslinking a sheet of HDPE to provide maximum crosslinking at the surfaces of the sheet and minimum orientation at its middle layer portion, and thereafter heating and stretching the film to obtain an oriented HDPE of high clarity film of improved moisture proof.

Abstract: A film forming method, a recording medium formed thereby, and a recording method therewith are provided. The recording medium comprises a recording layer constituted of a monomolecular film or monomolecular-layer built-up film of a clathrate complex compound comprised of a host molecule and a guest molecule, said host molecule having a hydrophilic portion, a hydrophobic portion, and a portion capable of enclosing said guest molecule.

Abstract: X-ray dispersive and reflective structures and materials are provided which exhibit improved resolution and reflectivity in specific ranges of interest without substantial fluorescence or absorption edges. The structures are formed of metallic and non-metallic layer pairs and can include a buffer layer between each layer to prevent interdiffusion to stabilize the structures. The materials can be thermally activated to control the desired properties, during or post deposition. The structures can be deposited by ion beam absorption techniques to form the structures in a precise manner. The index of the refraction of the structures can be continuously varying throughout the structures.

Abstract: An improved resistive ribbon for resistive thermal transfer printing is described in which the resistive layer of the ribbon has enhanced thermal and mechanical properties. The ribbon is a multi-layer ribbon including a resistive layer, an electrical current return layer, and an ink layer. The resistive layer has an additive therein which phase separates and concentrates in a thin surface region near the interface of the resistive layer and the current return layer. This thin region has superior thermal and mechanical properties, and protects the remainder of the resistive layer during the printing operation, without adversely affecting the mechanical, electrical, and thermal properties of the overall resistive layer. These additives are those which will form a polymer having a sufficiently high dissociation temperature to withstand the adverse effects of heat build-up at the interface. Suitable additives include graphite fluorides, fluorocarbon resins such as Teflon.RTM., and CeF.sub.4.

Abstract: A conventional broad-band camouflage material comprising a base layer, a reflective metal layer and a paint layer which imitates the visible and near IR spectral reflective properties of a natural background and contains binders which are transparent in the far IR range, is improved in the radar spectral range by providing the metal layer in the form of spaced squares or rectangles whose long dimension is smaller than 1/2 lambda of the largest radar wavelength used for reconnaissance and larger than 1/2 lambda of the radar wavelength used for homing missiles and bullets.

Abstract: A magnetooptical recording medium is provided which comprises (a) a light-transmissive substrate formed of a material selected from the group consisting of plastic and glass, (b) a multilayer film disposed on said light-transmissive substrate, and multilayer film being formed by alternate lamination in three or more odd number of a high-refractive film composed of a high-refractive material and a low-refractive film containing SiO.sub.2 as the main constituent and the film in contact with said light-transmissive substrate being a high refractive film, and (c) a recording magnetic layer disposed on said multilayer film, recording on said magnetic film being performed by a light beam transmitting said substrate and said multilayer.

Abstract: Hard to simulate, readily distinguishable from counterfeits, optical interference authenticating devices are provided by depositing two coatings on a substrate, each coating comprising at least one optical interference layer, the material of each layer being selected so that the two coatings together and separately have different spectral reflectance and spectral transmittance characteristics at different angles of incidence of light thereon. The substrate may be, for example, a polyester film and a first one of the coatings is sufficiently radiation absorbing of, say, infrared radiation that at least one portion of that coating can be removed by an infrared laser beam through, for example, a mask to provide a readily distinguishable pattern on the substrate.

Abstract: Multilayer protective coatings that are applied over a substrate are disclosed that comprise a plurality of superimposed multilayer units. Each multilayer unit contains two or more superimposed thin layers in which at least two layers are compositionally different. The properties of the resulting coating are a combination of the properties of the individual layers. One layer of a multilayer unit may provide hardness or wear resistance and another layer may provide lubricity, for example. The thickness of the individual layers can be related to the microscopic surface relief of the substrate to which the protective coating is applied.One disclosed multilayer unit comprises three layers: an oxidation resistant layer; a nitride layer; and a layer of disordered boron and carbon material.