Abstract: Means are disclosed to provide a ceramic article with a protective coating which resists mechanical wear at elevated temperatures up to 500.degree. C. and higher. The coating is applied by first chemically depositing activating metal ions on the uncoated ceramic surface and thereafter vapor depositing an adherent organic polymer lubrication film on the activated surface. Ceramic materials provided with such protective coating include silicon carbide, silicon nitride and vitreous silica.

Abstract: A solid surface that is exposed to protein solutes in use, such as medical implants or capillary tubes useful in capillary zone electrophoresis, is defined by or carries a polymer. An interfacial layer is covalently bound to the polymer and functions to reduce interactions between the surface and protein solutes. The interfacial layer includes either a hydratable amphoteric phase or a plurality of halogen atoms bound in the interfacial layer through at least one heteroatom.

Abstract: A method for treating a suspension of a phenolic resin containing residual phenols comprising the step of adding a peroxidase enzyme and a peroxide material or an oxidase enzyme and an oxygen material to said suspension to polymerize said residual phenolic monomer, and the purified suspension produced thereby is disclosed. The inventive method is used to pretreat a suspension containing a phenolic material so that the suspension may be subsequently used in a commercial process, such as the production of paper.

Abstract: A metallization layer structure containing, in order, an aluminum nitride ceramic base layer, an aluminum titanium nitride layer, a titanium layer, a heat-resistant metallic layer and a metallic layer for facilitating soldering and brazing. The aluminum titanium nitride layer is formed at the interface between the aluminum nitride ceramic base layer and the titanium layer by subjecting a laminate containing, in order, an aluminum nitride ceramic base layer, a titanium layer, a heat-resistant metallic layer and a metallic layer for facilitating soldering and brazing to a heat treatment within the range of 350.degree.-1000.degree. C. for 40 minutes.

Abstract: A laminated rubber structure having a first layer formed of a first rubber composition including a copolymer of tetrafluoroethylene, vinylidene fluoride, and hexafluoropropylene, the copolymer having at least one peroxide-crosslinking peroxide unit each bonded to a corresponding one of at least one end thereof, and containing 10 to 50 mole % of the vinylidene fluoride; and a second layer formed of a second rubber composition which includes an acrylonitrile-butadiene rubber containing 25 to 45 weight % of acrylonitrile, and a bifunctional crosslinking aid, the second layer contacting the first layer, the first and second layers being chemically bonded to each other by crosslinking caused between the copolymer and the acrylonitrile-butadiene rubber owing to the peroxide-crosslinking unit.

Abstract: A polymeric resin laminate is manufactured by bonding the molecularly-modified, adhesion-improved surface of a rigid thermoplastic resin layer to a thermoset resin layer, advantageously, in a reaction injection molding operation.

Abstract: The trimer of 1,6-hexanediisocyanate, which has the chemical name in acconce with (International Union of Pure and Applied Chemistry) (IUPAC) nomenclature of 7-aza-8-oxo-7[1-isocyanato-6-oxohexyl]pentadecanediisocyanate, is employed in a method of chemical bonding of solid propellant grains to the internal insulation of an interceptor motor. Both the propellant composition and the insulation are chemically reactive with the trimmer identified hereinabove. The method comprises providing a solid propellant rocket motor case having the internal insulation installed therein. Following degreasing of the insulation outer surface, the trimer identified hereinabove is spray coated onto the insulation, and the solid propellant composition is placed onto the trimer. A chemical bond is formed between the propellant and the trimer and the insulation to achieve the chemical bonding of an isocyanate curable solid propellant composition to the internal insulation.

Abstract: The invention relates to a molded window glass intended to be installed by gluing it into a window opening, especially a window opening in a car.The molded profile has at least one reactive surface comprising free OH groups which can subsequently react with the strip of adhesive used for installation of the window glass in the window opening by gluing.

Abstract: A thermoplastic laminated film that has satisfactory adhesiveness to hydrophilic polymers, hydrophobic polymers, and inorganic substances is provided. The film comprises a base film made of thermoplastic resin and a layer formed on at least one side of said base film, wherein said layer is made of a composition comprising (a) at least one selected from the group consisting of water-soluble resins, water-emulsifiable resins, and water-dispersible resins, and (b) an organic boron polymer or a mixture composed of an organic boron polymer and vinyl alcohol polymer.

Abstract: A process for producing a metallized polyacetylene-type ultralong conjugated polymer comprising immersing a substrate having a hydrophilic surface in a first nonaqueous organic solution containing a compound containing an acetylenic group (--C.tbd.C--) and ##STR1## group (hereinafter referred to as silane-type surfactant) to deposit a chemisorbed layer of the silane-type surfactant on the substrate by chemisorption, immersing the substrate on which the chemisorbed layer is deposited in an aqueous solution containing a metal ion to replace a hydrogen atom connected to the acetylenic group by the metal atom, and immersing the substrate on which the chemisorbed layer is deposited in a second organic solution containing a metal salt catalyst to polymerize the molecules at the acetylenic group in the chemisorbed layer.

Abstract: An abrasion-resistant article and method for making is disclosed. The article includes a plastic substrate and a gradational coating applied by plasma-enhanced chemical vapor deposition to the surface thereof.

Abstract: An optical cement system having an index of refraction of 1.50 or less, which can be used to bond pieces of optical quality glass during the preparation of devices. The surfaces of the glass pieces to be bonded are treated with an organosilane to produce activated sites, to which the adhesive forms a chemical bond. The adhesive is prepared by mixing together a transparent polymerizable monomer having a refractive index of 1.50 or less, a thickener, and an initiator. The adhesive is flowable, and its consistency is determined by the nature of the thickener. A layer of the adhesive is placed between the pieces of organosilane-treated glass, and polymerized by ultraviolet light or other energy, bonding the pieces of glass together with an adhesive having a refractive index less than that of the glass.

Abstract: The invention relates to articles with a non-stick coating. It relates in particular to an article consisting of a substrate whose surface has -OH groups, and of at least one non-stick polymer layer, said article having also, applied between said substrate and said non-stick polymer layer, a layer which is obtained by making an appropriate bifunctional organosilane react with a polyamic-acid precursor of polyamide-imide and with -OH groups of the substrate surface, then drying and converting said polyamic-acid into a polyamide-imide by heating at an appropriately high temperature. The invention also provides processes and compositions to make non-stick glass and glass-ceramic cookware having clear, vivid, brilliant, attractive colors and stable and durable decorating patterns. Said coloring is achieved by precoating the substrate surface with a polyimide resin containing colored pigment, and preferably, an organosilane.

Abstract: The invention relates to a method of contacting two components to form a pressure-sensitive adhesive (PSA) construction, wherein the first component comprises a conventional PSA and a liquid copolymeric organopolysiloxane and the second component comprises the PSA and a cure agent for the liquid copolymeric organopolysiloxane. The method provides improved adhesion over the unmodified PSA as measured by bond strength and/or the percentage of cohesive failure of the construction, which bond strength generally increases with the passage of time.

Abstract: The present invention is directed to a hydrophilic transparent plastic slide for a microscope and a method for preparing the same. This slide is characterized in that at least one surface of the slide is rendered hydrophilic so that a staining solution which is generally used in microscopic examination may not be repelled thereon. Further, according to the present invention, the plastic slides can be manufactured by providing at least one surface of each slide with a hydrophilic layer of silicon oxide, a polysaccharide or the like.

Abstract: An adhesive made from a thermosetting resin composition consisting of (a) a condensed polycyclic aromatic compound, (b) an aromatic crosslinking agent and (c) an acid catalyst is applied to each surface of adherends treated with a particular surface treating agent and heated at a temperature of 100.degree.-400.degree. C. in an oxidizing or non-oxidizing atmosphere to produce an adhesion structure. In order to provide a conductive adhesion structure, a conductive promotion catalyst is included in the adhesive. Further, a carbonaceous or graphitic adhesion structure is obtained by carbonization or graphitization of the adhesion structure.

Abstract: Benzocyclobutene-functionalized organosilanes, and a method of increasing adhesion between a polymer and an inorganic surface by using benzocyclobutene-functionalized organosilanes as adhesion aids.

Abstract: An organic thin film device, including first and second organic thin films containing acceptor and doner molecules, respectively, stacked one on another, in which at least one of the first and second organic thin films contains a chemical species having a dipole moment P.sub.2, and the second dipole moment P.sub.2 and a dipole moment P.sub.1 produced by charge transfer between the acceptor and doner molecules satisfy the following formula:(P.sub.1 .multidot.P.sub.2).vertline.r.vertline..sup.2 -3(P.sub.1 .multidot.r)(P.sub.2 .multidot.r)<0wherein r represents a positional relationship between P.sub.1 and P.sub.2. Also disclosed is an organic thin film device, including the first and second organic thin films, and at least one of the first and second organic thin films contains at least one pigment skeleton which is inclined with respect to the lamination direction of the organic thin films.

Abstract: Disclosed are a functional organic thin film formed of a monolayer or multilayers composed of reactive functional group-containing amphiphilic organic molecules in which at least one of the amphiphilic organic molecules is a precursor of a nitrene or carbene and a functional organic thin film containing at least one kind of functional organic molecules formed by the reaction between the nitrene or carbene derived from the precursor and a guest compound molecule of a different kind as well as a method of producing the functional organic thin films. Utilizing the reactivity of the thin film, a functional compound, preferably a biotechnology-related functional compound, of various kinds can be fixed onto the film for use in the sensor image formation or information recording fields.

Abstract: Polyamide bodies, e.g., foils or sheets, are welding together or laminated by forming methylene bridges between nitrogen atoms in the separate bodies by pressing them together in the presence of a alkaline paraformaldehyde/methanol solution containing a catalytic amount of oxalic acid.

Abstract: This invention provides for the radiation grafting of certain organopolysiloxanes to polymeric supports. The organopolysiloxane material is partially crosslinked mixture which contains from about 10% to about 90% by weight of uncrosslinked organopolysiloxane oil and has a cone penetration of about 100 to about 350 (10.sup.-1 mm) and an ultimate elongation of at least about 100%. The organopolysiloxane fluid may be placed on the polymeric support and crosslinked to produce an organopolysiloxane material having the above properties and being bonded to the polymeric support. The organopolysiloxane material also can be crosslinked to the above properties by conventional means then placed in contact with the polymeric support and irradiated to crosslink the material to the polymeric support without substantially changing the properties of the organopolysiloxane material.

Abstract: An adhesive label comprising, in order, a printing carrier, a primer on the back of the printing carrier, an adhesion layer, a covering layer, and an optional adhesive-repellent layer between the adhesion layer and the cover layer. The primer comprises isocyanate-terminated compounds, particularly isocyanate-terminated polyurethanes. The adhesive label is made by applying the adhesion layer to the covering layer or to the optional adhesive-repellent layer on the covering layer, and combining the adhesion layer and a stratum made from the printing carrier and the primer by applying the adhesion layer onto the primer.

Abstract: Novel system for providing anti-corrosion protective coatings, e.g. for metal pipes and the like, comprising: (1) a rubber-based primer coating mixture; and (2) an adhesive tape comprising a backing carrying a rubber-based adhesive coating comprising a mixture of pre-crosslinked butyl rubber and virgin butyl rubber alone or in combination with reclaimed butyl rubber, the system further including a crosslinking agent and a crosslinking activator adapted to provide an incipient or in situ crosslinking of the system after the primer coating and tape are applied.Preferably, the crosslinking agent is contained initially in the adhesive coating; and the activator is contained initially in the primer.

Abstract: This invention relates to a method of joining two or more surfaces together by applying to at least one of the surfaces a water-based adhesive or an adhesive which liberates water during curing, and generating salt during the course of the joining operation, which salt will bind water that is present during the joining as water of crystallization.

Abstract: The present invention relates to a hermetically sealed Li.sub.2 O-Al.sub.2 O.sub.3 -SiO.sub.2 glass ceramic-aluminum containing stainless steel composite body and a method of producing the body. The composite body includes an oxide interfacial region between the glass ceramic and metal, wherein the interfacial region consists essentially of an Al.sub.2 O.sub.3 layer. The interfacial Al.sub.2 O.sub.3 region includes constituents of both the metal and glass ceramic.

Abstract: A process for improving the bonding of hotmelt materials which post crosslink in the presence of moisture, to water vapor impermeable substrates by applying an activator material, which release bound water at the hotmelt application temperature, to at least one of the water vapor impermeable substrates.

Abstract: A decorative pleatable material adapted for the fabrication of pleated shades is described. The material is comprised of a pleatable fabric having a decorative resin coat containing desired pigment adhered to the face of the fabric by means of a polyurethane layer embedded in the structure of the fabric. The decorative resin coat is overlaid with a top-coat that prevents blocking during pleating. A preferred top-coat is comprised of a film forming cellulose derivative containing amorphous fumed silica. A film transfer strip for producing the decorative pleatable material is also described.

Abstract: The invention relates to a method of contacting two components to form a pressure-sensitive adhesive (PSA) construction, wherein the first component comprises a conventional PSA modified with an alkoxy-functional silicon compound and the second component comprises the same PSA modified with a cure agent for the alkoxy-functional silicon compound. The method provides improved adhesive bond strength over the unmodified PSA which generally increases with time.

Abstract: A flexible optical recording material in the shape of tape or floppy disk comprising an optically isotropic laminate (A) comprising at least one thermoplastic gas-impermeable synthetic resin film layer (1) and at least one cured crosslinking resin layer (2), said layers having been formed by casting and having a retardation value of not less than 80 nm as a whole, and a recording layer (B) disposed on at least one side of said optically isotropic laminate.

Abstract: A cushion has a main body formed of fibers including organic synthetic fibers which are stereoscopically intertwined. A cured polyurethane resion covers surfaces of the fibers and binds the fibers at their intersections. The cured polyurethane resin is obtained by curing a polyurethane prepolymer with water or steam.

Abstract: Polyamide bodies, e.g., foils or sheets, are welding together or laminated by forming methylene bridges between nitrogen atoms in the separate bodies by pressing them together in the presence of a alkaline paraformaldehyde/methanol solution containing a catalytic amount of oxalic acid.

Abstract: The invention relates to thermoplastic particulate graft polymers of a rubber (AB), consisting of a core (A) of rubber-like polymer of olefinically unsaturated monomers having softening temperatures (glass temperatures) below 0.degree. C. and a shell (B) of organopolysiloxane, and a polymer (C) of at least one ethylenically unsaturated monomer grafted into the rubber (AB) and to their use, optionally in admixture with brittle thermoplastic vinyl resins, as thermoplastic molding compositions.

Abstract: A process for manufacturing a composite panel capable of shock absorption comprising applying a bonding agent with an added cross-linking agent on a surface of a foam member to form a primer treatment surface thereon and applying to a surface of a laminating member the same or a similar bonding agent with added cross-linking agent. The treated surfaces of the foam member and laminating member are then placed into contact with one another and the two members are bonded together while heating the same and applying pressure thereto.

Abstract: A two-step, sequential coating method is disclosed which permits the use of aqueous precursor solutions to coat water-insoluble compounds onto thermoplastic film. In a preferred embodiment, an aqueous oleic acid/ammonium oleate solution is coated onto amorphous polyester sheet which is subsequently monoaxially oriented by stretching in the machine direction, and coated with an aqueous solution of calcium hydroxide, thereby forming a layer of calcium oleate in situ. The coated film is subsequently biaxially oriented by stretching in the transverse direction, and heat-set.

Abstract: The invention relates to a fusible textile product and its method of manufacture. This thermally fusible product, intended particularly for the textile industry of a type comprising on one hand, a woven, knitted or non-woven textile substrate and, on the other hand, points of a thermally fusible material distributed on one of the external faces of the substrate, in particular polymer base. It comprises at least one reactive material and at least one reactive mean suitable for stimulating fixing and developing the reaction between the reactive material and a part of the thermally-fusible material with a view to partially modifying its chemical structure at least at the interface with the substrate, in such a way as to prevent the thermally-fusible material flowing through the substrate when affected by heat, pressure or steam. Method of manufacture of such a product.

Abstract: Thermoplastic particulate graft polymers comprising particles of a core (A) of an organic resin-like polymer of olefinically unsaturated monomers having softening temperatures (glass temperatures) above 30.degree. C., a shell polymer (B) or ogranopolysiloxane and a polymer (C) of at least one .alpha.,.beta.-unsaturated olefinic monomer grafted onto the particles consisting of A and B and their use as thermoplastic molding compositions.

Abstract: A fiber product comprising a core of a flexible, non-flammable carbonaceous polymeric fibers having an aspect ratio greater than 10:1, and a non-electrically conductive fluorinated surface.

Abstract: A conductive high molecular composition which comprises a non-conductive polymer component incorporated with a metal salt, characterized in that the melt salt is a salt of a metal with an acid substance selected from an organic carboxylic acid, rosin and a rosin derivative. This composition has an insulating property in the normal state but functions as an electroconductive material only in the event it is interposed between slightly spaced metals and heated. Thus, the composition can be used not only as an insulating binder but also for imparting conductivity only in the desired spots of electronic parts, keeping the other areas of the parts electrically insulated. The composition thus possessing a specific dual function is particularly useful in the electronic industry field.

Abstract: A light weight, durable plumbing fixture, e.g., a bathtub, sink, shower receptor, etc., is fabricated from a multilayer polymer composite structure of high impact strength and delamination resistance. The composite possesses a relatively thin polymeric cosmetic, or finish, layer, e.g., of acrylic resin, chemically bonded to a relatively thick, reinforced, cross-linked, isocyanate-modified thermosetting polyester or polyether dense foam resin substrate layer.

Abstract: A multilayer polymeric composite structure of high impact strength and delamination resistance possesses a polymeric cosmetic layer chemically bonded to a cross-linked, isocyanate-modified thermosetting polyester or polyether substrate layer. In one embodiment of the structure, a relatively thin, predominantly acrylic resin layer is chemically bonded through urethane linkages to a relatively thick, reinforced, polyester foam substrate layer. A reinforced reaction injection molding (RPIM) procedure for manufacturing the polymeric composite is also disclosed.

Abstract: A magnetic recording medium is described, comprising a non-magnetic support having provided thereon, in sequence, an intermediate layer and a magnetic layer coated with a dispersion of ferromagnetic particles in a binder, wherein said intermediate layer contains at least one binder containing at least one of a hydroxyl group and an amino group, and said magnetic layer contains an isocyanate compound.

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: HSA crystals are provided in the form of tetragonal plates having the space groups P42.sub.1 2, the crystals being grown to sizes in excess of 0.5 mm in two dimensions and a thickness of 0.1 mm. Growth of the crystals is carried out by a hanging drop method wherein a precipitant solution containing PEG and a phosphate buffer is mixed with an HSA solution, and a droplet of mixed solution is suspended over a well of precipitant solution. Crystals grow to the desired size in 3 to 7 days. Concentration of reagents, pH and other parameters are controlled within prescribed limits. The resulting crystals exhibit a size and quality such as to allow performance of x-ray diffraction studies and enable the conduct of drug binding studies as well as genetic engineering studies.

Abstract: Chlorine-resistant semipermeable membranes which comprise an interfacial polymerized reaction product composite on a porous support backing material may be prepared by contacting a porous support material such as polysulfone with an aqueous solution of an aromatic polyamine, said aqueous solution containing a polyhydric compound and an acid acceptor. The coated support material is then contacted with an organic solvent solution of an aromatic polycarboxylic acid halide for a period of time sufficient to form an interfacial polymerized reaction product on the surface of the support material. The resulting composite is then post treated by washing with an alkaline compound, leaching with sodium bisulfite and treating the leached composite with a polyhydric compound. The resultant membrane composite may be used in separation processes such as the desalination of brackish or sea water, trhe membrane being resistant to attack by chlorine which is present in the water.

Abstract: The invention relates to a method of contacting two components to form a pressure-sensitive adhesive (PSA) construction, wherein the first component comprises a conventional PSA and a liquid organohydrogenpolysiloxane and the second component comprises the same PSA and a cure agent for the liquid organohydrogenpolysiloxane. The method provides improved adhesive bond strength over the unmodified PSA, which bond strength generally increases with the passage of time.

Abstract: Machine parts to be brought into contact with an elongated fibrous member each consists of a substrate of an iron series metal and a surface layer which has high wear-resistance and a good sliding property, and which contains chromium oxide as a major constituent. The chromium oxide is converted from a chromium compound upon heating. An intermediate layer containing a reaction product between the chromium oxide in the surface layer and the substrate is formed at an interface between the surface layer and the substrate.

Abstract: A coupling agent for chemically linking metal substrates to thermoset polymers is composed of a hydrophobic polymer backbone having functional groups attached thereto at spaced intervals, the functional groups having the ability to form chemical bonds to both the metal substrate and the thermosetting polymeric resin. In a preferred embodiment, the hydrophobic polymeric coupling agent comprises mercaptoester functional groups placed along a strong, hydrophobic polymeric backbone. This polymeric backbone preferably comprises polyethylene resulting in an ethylene mercaptoester (EME) copolymer.

Abstract: Hydrogenated boron-silicon alloy films having unexpected properties permitting in one embodiment the bonding together of metal and ceramic substrates by coating the surfaces to be bonded with the film mating the surfaces and heat treating the mated surfaces to expell hydrogen therefrom and to react to resulting boron-silicon alloy film with the substrates to form a liquid reaction product which forms a surface bond with the substrates or is at least partially absorbed in the substrates. In another embodiment, at least one surface of an intermetallic compound formed from elements selected from groups III and V of the periodic table is sealed against structural degradation by forming on the surface a solid boron-silicon-hydrogen alloy film. In still another embodiment, metal and organic resin substrates are protected against attack by water vapor, dissociated oxygen and molecular oxygen by forming a solid boron-silicon-hydrogen alloy film on the substrates.

Abstract: The coefficient of friction of surfaces of articles, wherein the surface comprises a hydrophilic polyurethane polymer, is reduced by treating the surface with a mixture of concentrated sulfuric acid and a low molecular weight organic polyhydroxy compound, and removing excess treating mixture. Typical low friction articles produced thereby are boat hulls having drag resistant coatings, conduits having low friction linings, and cannula or body implants having slippery surfaces.

Abstract: The present invention relates to a light weight energy absorbing and damping device having a predetermined configuration, which is a composite of a foam element, and at least one visco-elastic element, each said visco-elastic element being permanently affixed by chemical bonding in a portion of the device through which energy is normally transmitted. The device may be configured to all or part of a shoe part or insole, a glove, a seat or seat pad, a helmet or helmet liner, a dash-board liner, head support pad or other energy absorbing or protection devices.