Abstract: A composition comprising: (1) a susceptor of magnetically coupled radio frequency energy comprising a non-magnetic particulate substrate, e.g., an electrically insulative material in particulate form, bearing a thin magnetic coating, e.g., a magnetic inorganic film, and (2) a matrix that is substantially non-reflective of radio frequency energy, e.g., silicone rubber, which matrix can be heated upon the composition's being subjected to magnetically coupled radio frequency energy. It has been discovered that thin magnetic coatings on non-magnetic particles provide energy transfer with induction heaters equal to or better than many commonly used solid susceptor particles. It has also been discovered that the temperature of the composition of this invention can be regulated so as not to exceed a predetermined temperature.

Abstract: The present invention relates to a novel cost efficient luminescent composition comprising particles of a core material which have been coated with a luminescent material that is distributed in the form of a chemically homogeneous layer. The average diameter of the core particle is in the range of from about 0.5 to 20 microns, and the coating corresponds to between about 2 and 30 wt % of the total composition. The composition can be employed to form a luminescent film or layer within a plasma display panel.

Abstract: A flexible decorative sheet for use in surfacing an automobile body panel includes a first polyester carrier sheet having a high gloss surface, a clear coat of a weatherable optically-clear polymer containing fluorocarbon resin and an acrylic resin coated on the surface of the first carrier sheet, a tie coat on the clear coat, and a color coat containing a chlorinated polymer with dispersed pigments cast on the tie coat and dried. A pressure-sensitive adhesive layer is formed on a second polyester carrier sheet and then laminated to the exposed face of the color coat to form a pressure-sensitive, adhesive-backed composite paint coat between the outer carrier sheets which form protective removable backing sheets for the resulting laminate. The decorative sheet is applied to a substrate panel by pressure-sensitive adhesive bonding techniques, with the clear coat serving as a glossy, weatherable protective outer layer for the underlying color coat.

Abstract: Infrared (IR) reflective radio frequency (RF) transparent coating materials are comprised of coated microspheres dispersed as discrete pigment particles in an IR and RF transparent film forming binder. Each microsphere is comprised of a dielectric core, a layer of IR reflective RF conductive material on the core, and an IR and RF transparent layer of insulating material coated over and encapsulating the reflective layer. The insulating layer prohibits transmission of currents between the conductive layers and the spheres are of sufficiently small size in relation to RF wavelengths as to permit passage of RF energy through the coating. The coated microspheres are visually colored, and being spherical, provide on a coated object a film or coating that is visually colored and highly diffuse, as well as being IR reflective and RF transparent.

Abstract: Hollow microspheres produced by the present method each have a hollow interior evacuated of gases to a predetermined pressure. A reflective material layer coats the exterior of each microsphere and, optionally, an outer layer of a protective material is applied over the reflective material layer. Permeant gases are dissolved into glass or plastic frit particles prior to heating of the frit particles to form hollow microspheres having the permeant gases contained therein. The permeant gases are subsequently out-permeated in a non-permeant gas atmosphere to substantially evacuate the interior of each microsphere. The exterior layers of reflective material and protective material are then coated about each evacuated microsphere.

Abstract: A frosting agent in which particulate silica suspends with high dispersibility without lowering the flow-out and formability of an aqueous polyurethane as a binder of frosting coating agent. Such a frosting agent for use in an aqueous polyurethane is obtained by adding 0.5-5.0 parts by weight of .gamma.-ureidopropyltriethoxysilane and 0.1 part by weight or more of water to 100 parts by weight of particulate silica and reacting said substances at a temperature of 15.degree.-100.degree. C. to modify the surface of said particulate silica. By this reaction, .gamma.-ureidopropylsilane liberated by hydrolysis of ethoxysilane groups reacts with acid hydroxy groups. Thus, the wettability and compatibility of the frosting agent with respect to aqueous polyurethane increases. This improves the dispersibility and the resistance to scuff of the coating.

Abstract: A glass flake comprising a flake of glass having formed on its surface a metal covering layer on which is formed a dense protective covering layer of a metal oxide. The glass flake is produced by maintaining a flake of glass in an alkaline solution containing metal alkoxide, water and an alcohol, followed by the separation and firing thereof.

Abstract: The present invention relates to resin coated particulates, the process of forming the particulates, and the particulates' utilization in petroleum well completions. More particularly, the present invention comprises the resin coated particulates and the process whereby the high strength particulate substrates are coated with a heat curable resin which is reacted with a formaldehyde source-metal compound (FS-MC) complex. The resultant resin coated particulates are less reactive or interactive with the fluids employed to convey those particulates during petroleum well completion operations.

Abstract: A high strength particle comprised of a particulate substrate, a substantially cured inner resin coating, an outer resin coating, and a reinforcing agent interspersed at the inner coating/outer coating boundary.

Abstract: A solid support for oligonucleotide synthesis has the structure ##STR1## where CPG represents a controlled pore glass matrix, the wavy line represents a carbon chain covalently linking the NH group with the controlled pore glass matrix, X is 2,2'-dimethoxytrityl or H, and R is alkyl, aryl, arylalkyl, heteroalkyl, or heteroaryl. The dimethoxytrityl group is removed from the solid support by treatment with acid, and the oligonucleotide is built, step-by-step in a conventional synthesizer after attachment of the 3' end of the first oligonucleotide unit to the hydroxyl function connected to the R group.

Abstract: Materials, particularly wood materials and calcium carbonate-containing materials such as concrete and marble, can be protected from the growth of algae by being treated with a compound containing tin covalently bonded to a silylating group such that cleavage of the covalent bonds due to hydrolysis or photolysis is minimized, thus making the treatment ecologically safe. One such compound is (n-Bu).sub.3 SnCH.sub.2 CH.sub.2 Si(OEt).sub.3. The tin compound can either be incorporated into raw materials from which materials are to be made, or it can be applied to the finished materials. When the tin compound is applied to a material that is algae streaked, the streaking should disappear.

Abstract: The application relates to deagglomerated and readily dispersible platelet-like substrates with a high degree of softness, which are characterized by a content of 0.5-20% by weight of spherical particles having a small diameter in comparison with the platelet-like substrate, and to a process for their preparation and their use.

Abstract: Solid particles are coated with a polymer coating, by a process that includes, dispersing the uncoated particles in water, containing a wetting agent, adding a liquid polymer coupling agent, so that the dispersed solid particles have a film of the coupling agent, and agitating the mixture while adding a prepolymer. The coupling agent is reacted with the polymer to form polymer coatings on the dispersed particles. Relatively thin polymer coatings can be achieved by this process. As an extension of the process, the core particles can be materials used for abrasive blast cleaning, filtration, separation catalysis, animal feed, drug dispensing, contacting, tumble cleaning, and slow release of active ingredients.

Abstract: Articles of manufacture including: (a) a base substrate having an oxide surface layer, and a multidentate ligand, capable of binding a metal ion, attached to the oxide surface layer of the base substrate, (b) a base substrate having an oxide surface layer, a multidentate ligand, capable of binding a metal ion, attached to the oxide surface layer of the base substrate, and a metal species attached to the multidentate ligand, (c) a base substrate having an oxide surface layer, a multidentate ligand, capable of binding a metal ion, attached to the oxide surface layer of the base substrate, a metal species attached to the multidentate ligand, and a multifunctional organic ligand attached to the metal species, and (d) a base substrate having an oxide surface layer, a multidentate ligand, capable of binding a metal ion, attached to the oxide surface layer of the base substrate, a metal species attached to the multidentate ligand, a multifunctional organic ligand attached to the metal species, and a second metal spe

Abstract: A fiber reinforced composite material and a method for producing the same with a smooth outer surface wherein the shrinkage induced transferring of the fiber reinforcement's pattern to the composite surface is completely or substantially inhibited through the application of a shrinkage barrier which includes uniformly dispersed microspherical particles in a compatible resin matrix.

Abstract: An electromagnetic radiation absorbing material comprises doubly layered core particles dispersed in a dielectric binder material. The first layer dissipates radiation; the second layer is an insulating material which helps prevent the particles from conductively contacting each other, and prevents degradation of the first layer. The absorber may be applied to an electrically conductive material, and an impedance matching material may be used.

Abstract: Particles of a fine powder of a thermoplastic synthetic resin (host powder) having a suitable broad range between its initial glass transition temperature (initial T.sub.g) and its final T.sub.g, are partially coated with an anti-caking coating powder (coating powder) by blending at an elevated temperature to form "mottled" particles. The elevated temperature is defined in relation to the initial and final T.sub.g s as: (initial T.sub.g -20).degree. C. but below the final T.sub.g. Mottled particles, without being encapsulated, have the unique ability to maintain their individual particulate characteristics at a temperature at least 10.degree. C. above the initial T.sub.g of the uncoated host powder, and flow freely under applied pressure. Such pressure is applied by a rolling drum which spreads the mottled particles onto a target bed where they are selectively sintered With a controlled high energy beam, usually a laser beam.

Abstract: Encapsulated-lens retroreflective sheeting comprising (1) a layer of binder material having a layer of retroreflective elements partially embedded in its top surface; (2) a transparent cover sheet disposed in spaced relation from the layer of retroreflective elements; (3) a network of narrow intersecting bonds comprising binder material embossed from the layer of binder material into contact with the cover sheet so as to adhere the layer of binder material and cover sheet together and form a plurality of cells within which retroreflective elements are hermetically sealed; the embossing of the layer of binder material leaving the bottom surface of the layer of binder material with an embossed configuration; and (4) a support sheet lastingly and directly adhered to said bottom surface of the layer of binder material and embossed with the layer of binder material so as to follow the embossed configuration of said bottom surface.

Abstract: An electrically-conductive fine particle powder comprises fine, hollow spherical particles of non-magnetic material such as glass or resin plated with a metal and having a bulk density of 0.2 to below 0.9 g/cm.sup.3. An exothermic electrically-conductive coating or paste comprises the above powder and a synthetic resin binder. An electrically-conductive heating unit is formed from a suitably shaped solid or solid surface coated or impregnated with the above coating or paste and is operable at low voltages.

Abstract: Paper having a relatively high rigidity including Japanese paper and fibrous sheet such as vegetable fibrous sheet and nonwoven fabric are used as base materials for finishing without subjected to any processing while fibrous sheets including some sorts of Japanese paper and spunbonded nonwoven fabric being high in softness and flexibility and bulky, and machine-made paper being lightweight and thin, and moreover having a relatively high rigidity are incapable of or nondurable to physical processing such as beating, bending and crumpling, so that the pretreatment or preliminary processing (primary processing) is applied to these sheets for use as base materials in such a manner that they are resin-treated or have plastic material, elastomer film, woven cloth or one selected from a group of fibrous sheets similar to the above attached thereto so as to convert them into composite sheets.

Abstract: As an article of manufacture, stable particles containing, in combination, inorganic filler material, benzoyl peroxide and a non-hygroscopic stabilizer for benzoyl peroxide; their production; and the formation of a polymeric matrix with such particulate matter.

Abstract: An article suitable for use in bonding to metal, glass, or ceramic substrates at high temperatures, e.g., above about 400.degree. C, comprises (a) a thermally stable backing material, such as a metal foil or an inorganic fabric; and (b) a coating on at least a portion of at least one major surface of the backing material, the coating consisting essentially of fused or fusible particles selected from glass particles, ceramic particles, and mixtures thereof. Preferably, the coating further contains a non-pressure sensitive adhesive vehicle such as pine oil, to aid in application and retention of the particles.

Abstract: A composite material is disclosed. The material comprises a polymeric matrix and from about 20 volume percent to about 70 volume percent inorganic particles distributed throughout the matrix. Suitable inorganic particles include hollow inorganic microspheres and porous inorganic particles. The inorganic particles are coated with a surface coating. The composite material of the present invention exhibits a dielectric constant of less than about 2.5 and a thermal coefficient of expansion of less than about 70 ppm/.degree.C.

Abstract: A molding material is disclosed, comprising a film (A) coated on one surface with a thermosetting resin composition containing a hollow filler, a film (B) on which no resin composition is applied, and a reinforcing fiber layer positioned between the coated surface of film (A) and film (B), wherein the reinforcing fiber layer is impregnated with the liquid component of the resin composition coated on film (A). A piled material is also disclosed, comprising the two portions of the said molding material, wherein the respective molding materials are positioned on top of the other portion in a face-to-face relationship having their respective film (A) sides facing inwardly to each other, where the respective films (A) have been stripped off prior to positioning.

Abstract: A method for fabricating in a mold a rotatable recording drum is disclosed. Initially, the mold is rotated and a predetermined quantity of a flowable substance is poured into the mold cavity and is centrifugally flung against the mold wall to form a mold layer with a smooth inner surface. Next, a surface substance is poured into the mold cavity and is allowed to harden against the mold layer. A core outer layer substance is then poured into the mold cavity and allowed to harden against the surface substance, and rotation of the mold is stopped. The mold layer fluid is removed, and the cavity inside the outer layer is filled with a core inner layer substance which is allowed to harden before the drum core is removed from the mold cavity. Following removal of the core from the mold cavity, the hardened surface substance may be vacuum coated, and a protective overcoat applied to the core. The drum core and the surface substance can also be formed separately.

Abstract: The technical field of the invention is concerned with smoke-generating devices and with powdered materials scattered by dispersion means in order to produce a camouflaging cloud which is effective in the infrared region. The material in accordance with the invention essentially consists of at least one powder having grains provided with a coating which is chemically inert with respect to the grain, which affords resistance to temperatures lower than or equal to the dispersion temperature, and which does not oxidize in free air.

Abstract: Particulate fillers containing Si-OH groups are functionalized by treatment with a silica bonding agent. The treated particles are effectively polyfunctional, and may be used to prepare highly filled, cross-linked organopolysiloxane networks without the need for additional cross-linking agents. The functionalized particles are highly compatible with silicone fluids, particularly cyclosiloxane fluids. Compositions curable to such filled, cross-linked networks comprise the bonding agent-functionalized particles, a curable organopolysiloxane, and a catalyst for curing the organopolysiloxane.

Abstract: Coated substrates are disclosed comprising a three-dimensional inorganic substrate having a coating of electrically conductive tin oxide on at least a portion of all three dimensions thereof, produced by a unique process having particular applicability to the manufacture of tin oxide coated three-dimensional substrates. Certain novel coated substrates, such as flakes, spheres and monoliths are disclosed. The coated substrates are useful in battery, catalysis, heating, shielding and field dependent fluid applications.

Abstract: A microwave absorbing article of low density comprises a hollow or solid glass microsphere having a diameter of 1-100 microns, and, deposited thereon, a succession of layers of particulate iron material interspersed by a passivated iron skin.

Abstract: A retroreflective sheet comprising a monolayer of retroreflective elements partially embedded in and partially protruding from the front surface of a binder layer and a backing bonded to the back surface of the binder layer wherein the backing is elastic and comprises a highly conformable and deformable nonwoven web comprising melt-blown microfibers having multiple layers of a relatively low modulus material and a high modulus material.

Abstract: Building materials such as concrete can be protected from the growth of algae by being treated with a compound containing tin covalently bonded to a silylating group such that cleavage of the covalent bonds due to hydrolysis or photolysis is minimized, thus making the treatment ecologically safe. One such compound is (n-Bu).sub.3 SnCH.sub.2 CH.sub.2 Si(OEt).sub.3. The tin compound can either be incorporated into raw materials from which building materials are to be made, or it can be applied to the finished building materials. When the tin compound is applied to a building material that is algae streaked, the streaking should disappear.

Abstract: This invention relates to a molecular modification reagent consisting of an inorganic oxide substrate having surface oxygens bonded to silylcobalt tetracarbonyl groups. This reagent is functionalized to form new compounds useful e.g., in semi-conductor industry, sensor industry, chromatography and modified support industry, and in the isolation of biologically active molecules.

Abstract: A laminated multi-layer wiring board comprising alternate layers of a glass ceramic material and conductor pattern. The glass ceramic layers are made of a glass ceramic comprising glass and dispersed ceramic particles. The glass ceramic layers further contain hollow or porous silica glass spheres dispersed in the glass ceramic. The hollow or porous silica glass spheres are covered with a ceramic coating layer containing aluminum as a constituent element. Such a structure prevents crystallization of the silica spheres and the resultant rapid increase in the thermal expansion coefficient of the glass ceramic layer. The structure also procludes the formation of pores in the surfaces of the spheres.

Abstract: A method of forming a metallic composite product having a specific gravity no greater than 1.8 and a thermal expansion no greater than 16.times.10.sup.-6 .degree. C. in a preheated mold. The portion of the mold between a cavity and the gate has a stainless steel wire gauge for retaining particles. The mold is filled with screened fly ash, glass, hollow spheres having a particle size in the range of 50 to 200 micrometers and a globularness of at least 90%, which has been preheated to the same temperature as the mold. Molten aluminum alloy is injected into the mold at a pressure in the range of from 40 to 80 kgf cm.sup.2 at the gate and at a flow velocity in the range of 0.08 to 0.20 m/second.

Abstract: A bead having an exterior surface which is at least partially coated with a material that under illumination and in the presence of air is capable of accelerating the oxidation of organic compounds floating on water. The coated bead is water floatable and has an equivalent diameter of less than about 2 mm, preferably on the order of 10-30 microns. These coated beads can be used to accelerate under illumination oxidation of a floating oil film (e.g. from an oil spill) by dispersing the coated beads in the film and allowing them to be exposed to solar illumination and oxygen.

Abstract: Whitener pigment particles that offer good hiding power consist of particles having a uniform shape (preferably spherical) and varying only slightly in dimension. The particles consist of an inexpensive, readily manufacturable core material which is surrounded by one or more thin, concentric layers or shells, one of which is titania. The core provides the central mechanical support for the shells. In addition to the titania shell, layers can be added to provide compatibility with the carrier in which the particles are dispersed and promote phase transformation. Also described is a production method and apparatus for generating large quantities of the particles.

Abstract: Disclosed is a plastic multilayer vessel having a laminate structure comprising an intermediate layer of a resin composition formed by incorporating an organic metal complex of a transition metal into a gas-barrier resin having a specific oxygen permeation coefficient and a specific water absorption, and outer and inner layers of a moisture-resistant thermoplastic resin disposed on both the sides of the intermediate layer. This vessel shows an excellent resistance to the permeation of oxygen even under conditions where water and heat simultaneously act.

Abstract: A method for forming a silicon dioxide film according to the present invention comprises steps of: (i) contacting a substrate with processing solution containing silicofluoric acid solution supersaturated with silicon dioxide, and (ii) forming the silicon dioxide film on the substrate; wherein organic colorant(s) is/are introduced into the silicon dioxide film by adding organic colorant(s) to the processing solution. According to the present invention, a silicon dioxide film containing organic colorant without defect such as air bubbles, or undecomposed raw material.

Abstract: In a two-component system for a hardenable material, quartz grains (1) serve as a filler material and are coated with benzoyl peroxide which forms the hardener component of the system. The benzoyl-peroxide coated quartz grains are enclosed in a protective layer of pyrogenic silicic acid. As a result, the flotation capability of the quartz granules is maintained.

Abstract: Electrical insulation which has good dielectric strength, good radiation resistance, and good thermal resistance at temperatures of up to 500.degree. C. and, preferably up to 1700.degree. C., includes a substrate which is flexible, has the form of a filament, sheet, wrapper, tape or sleeve, and consists essentially of inorganic materials selected from the group consisting of inorganic fibers and metals, metalloids, or alloys; and at least one layer of at least one oxide of an alkoxide-forming element provided on the substrate to impregnate and/or coat same. The insulation is prepared by a process including applying a solution containing an alkoxy gel polymer, optionally additionally containing at least one inorganic material in finely divided form, to the substrate to provide a treated substrate useful as a preform when allowed to set under ambient conditions.

Abstract: A coated color particle with extremely low susceptibility to decoloring is provided. The coated color particle comprises a colored core particle and a coating layer formed on the surface of the core particle, wherein the coating layer is formed by treatment of the core particle with an agent selected from the group consisting of silane compounds, silyl isocyanates, and organic titanium compounds.

Abstract: A method of forming a composite material by providing a quantity of first particles of a binder material and a quantity of second particles of a primary material having a softening temperature substantially in excess of the softening temperature of the binder material. The first and second quantities of particles are combined into a substantially uniform mixture. The uniform mixture is heated in the absence of pressure or shear sufficient to convert the binder particles, to a temperature substantially above the softening point of the binder material but less than the softening temperature of the primary material. Thereafter, pressure and shear are applied to the heated mixture sufficient substantially immediately to convert at least a portion of the binder material particles into a substantially continuous webbing structure or force the formation of point-bonds.

Abstract: A marking kit whose constituents are capable of forming a marking material includes a polymeric matrix-forming material and coated glass beads for incorporation into the matrix. Surface coated glass beads suitable for incorporation into the matrix are also disclosed, as is a process for the surface coating of the glass beads, a reflective surface marking comprising a synthetic polymeric matrix incorporating the coated glass beads; and a process for the reflective marking of a surface. Glass beads are surface coated with a material effective to provide the coated glass beads with a surface tension greater than that of the matrix-forming material and ranging from 30 to 70 mN/m.

Abstract: A method of packaging dry grout involving a novel aluminum product for use in packaged dry grout. Aluminum flakes conventionally used as an expanding agent in a grout fluidifier are coated with a film which has limited sensitivity to the moisture and the alkali (cement) in dry grout and are then blended with the materials (comprising cement ) to be packaged as a dry grout for mixing with water to form a wet grout. The coating used is highly sensitive to the water and/or alkaline nature of the wet grout and readily deteriorates when the dry grout is mixed with water. A coating and binder, e.g., sodium silicate, may be used to coat the aluminum flakes and to adhere the aluminum to micro-particles, such as glassy microspheres, prior to a dry grout blending operation.

Abstract: A retroreflective marking material which can be secured to a substrate, e.g., a firefighter's helmet, and then readily removed when desired, even after exposure to heat and flame. The material comprises a retroreflective layer made up of a layer of retroreflective elements in a binder layer, a fire resistant fabric, and a defined fire resistant adhesive on the rear of the fire resistant fabric. The adhesive adheres strongly to polycarbonate and can be stripped from polycarbonate after being held in a forced air oven at 260.degree. C. for 5 minutes. The marking material can contain fluorescent coloring agent(s) to afford good daylight visibility.

Abstract: A polymethylsilsesquioxane powder surface-treated with an organosilicone compound represented by the formula:(R.sup.1.sub.a R.sup.2.sub.3-a Si).sub.b Zwherein R.sup.1 represents an alkyl group substituted by a perfluoroalkyl group; R.sup.2 represents an unsubstituted monovalent hydrocarbon group; a is an integer of from 1 to 3; b is 1 or 2; and when b is 1, Z is selected from the group consisting of a hydrogen atom, a halogen atom, a hydroxyl group, --OR.sup.3, --NR.sup.3 X, --ON(R.sup.3).sub.2 and --OCOR.sup.3, and when b is 2, Z is selected from the group consisting of --O--, --N(X)-- and --S--, in which R.sup.3 represents an alkyl group having 1 to 4 carbon atoms and X is selected from the group consisting of a hydrogen atom and an alkyl group having 1 to 4 carbon atoms.

Abstract: Elongated granules of reinforcing fibers extending generally parallel to each other longitudinally within the granule substantially uniformly dispersed throughout a film forming latex binder composition. The granules provide complete dispersion of the fibers during their processing conserving physical properties of the fibers and provide improved handling and molding characteristics.

Abstract: Granules of glass flakes which comprise glass flakes in granular form and a binder which bonds the glass flakes to one another to form granules. The granules are used together with a molten thermoplastic resin.

Abstract: Glass microbeads bearing a coating which includes at least one binding agent fixed to the glass microbeads, and which binding agent is adapted releasably to bind to a material contained within a fluid medium by a biological affinity reaction, whereby the material can be removed from the fluid medium with the glass microbeads and then stripped from the glass microbeads while leaving the at least one binding agent attached to the glass microbeads. Inventive microbeads may bear a monomolecular layer of a silane as a fixing agent for a binding agent which is selected for its biological affinity for the material to be separated.

Abstract: Disclosed are pellicular materials useful in contact with proteins and as chromatography media. Rigid, inert, hydrophobic, polymeric materials are exposed to a solution comprising a solute defining plural interspersed hydrophobic and hydrophilic domains. The solute molecules adsorb onto the surface of the substrate by hydrophobic - hydrophobic interaction with their hydrophilic domains extending outwardly away from the surface into the solution. The molecules are then crosslinked in place to produce a solvent and pH resistant coating which presents a hydrophilic surface sufficient to mask hydrophobic regions therebeneath. The multidomain adsorbing compounds may comprise reactive groups which subsequently can be derivatized using conventional techniques to produce chromatography materials useful for conducting affinity, size exclusion, cationic exchange, anionic exchange, neutral hydrophobic interaction, and other forms of chromatographic separations.