Abstract: A silicone rubber composition containing 0.5-90% by weight of a metal powder and curable into a non-conductive silicone rubber having a volume resistivity of at least 1×109 &OHgr;·cm is useful for the sealing and encapsulation of electric and electronic parts because the metal powder is sulfided with a sulfur gas into a metal sulfide powder which prevents or retards the sulfur gas from reaching the electric and electronic parts.

Abstract: A silicone composition for preparing a silicone adhesive, the composition prepared by mixing (A) an organopolysiloxane containing an average of at least two silicon-bonded hydroxy groups per molecule; (B) a crosslinking agent in an amount sufficient to cure the composition; wherein the agent is selected from (i) at least one silane having the formula R2nSiX4-n wherein each R2 is independently selected from monovalent hydrocarbon and monovalent halogenated hydrocarbon groups having from 1 to about 8 carbon atoms, n is 0 or 1, and X is —OR2 or —OCH2CH2OR2; (ii) a partial hydrolyzate of (i), and (iii) mixtures comprising (i) and (ii); (C) an electrically conductive filler in an amount sufficient to impart electrical conductivity to the silicone adhesive, wherein the filler comprises particles having at least an outer surface of a metal selected from the group consisting of silver, gold, platinum, palladium, and alloys thereof; (D) an effective amount of a hydroxy-functional organic compound having a

Abstract: An electroconductive resin composition which exhibits excellent moldability and electric conductivity, and is produced at low costs. The electroconductive resin composition contains a zinc-based metal powder, low melting metal which melts upon molding, and thermoplastic resin. The zinc-based metal powder having a large surface area captures the molten low melting metal to prevent the phase separation thereof from both the resin and zinc-based metal powder. The zinc-based metal powder has a round configuration, as compared to that of fiber so as not to damage the fluidity of the resin greatly. Thus, the resultant electroconductive resin composition is excellent in moldability, and can be produced at low costs.

Abstract: In this method for making a sintered reactive material, fuel particles are blended with a polymer matrix comprising at least one fluoropolymer in an inert organic media to disperse the fuel particles in the polymer matrix and form a reactive material. The reactive material is dried and pressed to obtain a shaped pre-form, which is sintered in an inert atmosphere to form the sintered reactive material. By sintering in an inert atmosphere, the sintered reactive material may include reactive metals and/or metalloids in a non-oxidized state. The resulting sintered reactive material preferably has a tensile strength in excess of 1800 psi and an elongation at break in excess of 30%.

Abstract: A metal-organic polymer composite structure comprising a microphase-separated structure from a block copolymer composed of two or more polymer chains which are incompatible with each other bonded in an end-to-end manner, wherein one of the polymer phases of said microphase-separated structure selectively contains ultrafine metal particles arranged in a row or rows. A process for producing said metal-organic polymer composite structure, which comprises (i) the step of dissolving “metal ions” and “a block copolymer comprising one or more polymer chains having an affinity for the metal and, bonded thereto in an end-to-end manner, one or more polymer chains having no or little affinity for the metal” in a mixed solvent of “a high-boiling solvent having the ability to reduce the metal ion and having a boiling point of 80 to 200° C.” and “a low-boiling solvent having a boiling point of 10 to 80° C.

Abstract: The present invention relates to a composition comprising a binder and spherical inorganic matrix particles. The invention furthermore relates to a porous shaped article obtainable from said composition, a method of making said article and the use of said article as a mold or a device for conducting a fluid between a space and a duct or for deep drawing or engraving of plastic films and foils.

Abstract: A coating composition for producing electrically conductive coatings, containing one or more electrically conductive pigments and an organic binder, as well as, optionally, additives and auxiliary agents, in an aqueous solvent, which organic binder contains a copolymer dispersible in water and based on (meth)acrylate- and silylated, unsaturated monomers. The total content of organic solvents in the composition does not exceed 0.5% by weight. The coatings thus obtained are especially well-bonded and resistant to mechanical influences and to solvents, and exhibit suitable conductivity (sheet resistivity) values.

Abstract: Blends are described involving electrically conductive polymer and solid particles, in which the electrically conductive polymer binds the particles to form a cohesive material. In embodiments of particular interest, the blends include at least about 10 weight percent solid particles. The electrically conductive polymers have sufficient cohesiveness to function as a binder. In some embodiments of particular interest, the electrically conductive polymer is soluble in solvents. Several processing approaches are described for forming the blends. The blends are useful in the formation of electrodes, including battery electrodes.

Abstract: A radiation shielding material is manufactured from an elastomer that is blended with a radiation-absorbing filler material. The filler material comprises a powder of a metal with a high atomic member, or compounds thereof. The filler material is represented by more than 80 percent weight and has a grain size distribution in the range of 20 &mgr;m to 120 &mgr;m. The filler material is mixed with a loading material in powdered form. That mixture is kneaded with the elastomer within a mixer while the temperature is maintained below 180° C. The kneaded mixture is cooled and then cut into strips. The strips are passed through a strainer having a mesh width of between 5 &mgr;m and 1000 &mgr;m. The strained strips are then formed into a foil.

Abstract: The invention is directed to improved conductive adhesives for solder-free interconnections in microelectronic assembly processes such as for chip carrier-to-substrate attachment. These adhesives are characterized by low tensile modulus, low resistivity, high adhesion strength, and durability of these properties during reliability stress conditions of thermal shock, thermal aging, and temperature/humidity (85° C./85%) exposure of the assembled devices. The adhesives contain a homogeneous solution of a siloxane containing epoxide, a curing agent, a curing catalyst and an organic polymeric or oligomeric additive. A conductive filler is added to the solution forming the filler. Preferred fillers are Ag coated with Pd and Ag coated with Au.

Abstract: This invention provides a transparent, paramagnetic polymer composition in which a polymer is completed with sufficient rare earth ions, particularly ions selected from ions in the group of elements 64-69, to provide a polymer with a magnetic mass susceptibility greater than 20×10−6 emu/g measured at 298° K.

Abstract: The present invention provides a thermoplastic resin composition having a high specific gravity, flexibility and excellent processability that can be used as a material for forming various articles requiring both massiveness and flexibility. This thermoplastic resin composition contains 2.5 to 15 wt % of a styrene-based thermoplastic elastomer and 85 to 97.5 wt % of tungsten powder, and an molded article is obtained by melting and kneading this thermoplastic resin composition. This article can be used preferably as a balance weight attached to a wheel of an automobile, sports goods or the like.

Abstract: A resin composite material which allows a polymer phase structure to be controlled is provided. The material comprises a particle 1 having a surface area of not less than 50 m2/g and two or more polymers 21 and 22 or a copolymer comprising two or more segments. The polymers or the copolymer form a phase structure 5 having an unit thickness (t) of 1 to 1000 nm and which is laminated on the surface of the particle. It is preferred that the particle has a needle-like, sheet-like, spherical or cylindrical shape and that the copolymer is a block copolymer or a graft copolymer comprising two or more segments.

Abstract: A powder coating composition comprising metallic flakes having a leafing agent adsorbed on their surfaces, said metallic flakes being mixed with a thermosetting resin powder or deposited onto a surface of a thermosetting resin powder. A novel powder coating composition of the present invention provides a metallic coating having an excellent metallic luster.

Abstract: A silicone composition for preparing a silicone adhesive, the composition prepared by mixing (A) an organopolysiloxane containing an average of at least two silicon-bonded hydroxy groups per molecule; (B) a crosslinking agent in an amount sufficient to cure the composition; wherein the agent is selected from (i) at least one silane having the formula R2nSiX4−n wherein each R2 is independently selected from monovalent hydrocarbon and monovalent halogenated hydrocarbon groups having from 1 to about 8 carbon atoms, n is 0 or 1, and X is —OR2 or —OCH2CH2OR2; (ii) a partial hydrolyzate of (i), and (iii) mixtures comprising (i) and (ii); (C) an electrically conductive filler in an amount sufficient to impart electrical conductivity to the silicone adhesive, wherein the filler comprises particles having at least an outer surface of a metal selected from the group consisting of silver, gold, platinum, palladium, and alloys thereof; (D) an effective amount of a hydroxy-functional organic compound hav

Abstract: A highly flame retardant plasticized polyvinyl chloride compound (PVC) comprises a mixture of dialkyl tetrachlorophthalate and dialkyl tetrabromophthalate and is characterized by an absence of brittleness, and substantial flexibility at low temperatures as required for PVC formed jackets and insulation for wire and cable products.

Abstract: A composition comprising polymeric resin, electrically conductive filler and antistatic agents is disclosed. Electromagnetic shielding, electrostatic dissipation or antistatic capabilities can be imparted to articles made from the composition depending upon the amounts of the electrically conductive filler and antistatic agent present.

Abstract: The invention discloses a composition comprising one or more density modulators dispersed in a polymer matrix wherein the matrix is prepared by the metathesis of an olefin monomer using a ruthenium or osmium metal carbene catalyst. The composition may use a catalyst of the formula wherein: M is ruthenium or osmium; X and X1 are either the same or different and are any anionic ligand; L and L1 are either the same or different and are any neutral electron donor; R and R1 are either the same or different and are each independently hydrogen or a substitutent selected from the group consisting of C1-C20 alkyl, C2-C20 alkenyl, C2-C20 alkynyl, aryl, C1-C20 carboxylate, C1-C20 alkoxy, C2-C20 alkenyloxy, C2-C20 alkynyloxy, aryloxy, C2-C20 alkoxycarbonyl, C1-C20 alkylthio, C1-C20 alkylsulfonyl and C1-C20 alkylsulfinyl, wherein each of the substituents is substituted or unsubstituted.

Abstract: A temperature sensor for prevention of an overcurrent condition in circuits of electronic equipment such as personal computers. The temperature sensor including a temperature sensitive layer provided on opposing electrodes on an insulating substrate and prepared by suspending an electrically conductive powder in a mixture of a resin obtained by copolymerizing a flexible monomer, a hydrophobic monomer, and a monomer having a glycidyl radical, and a hardening agent; and an electronic equipment employing the temperature sensor.

Abstract: Paint compositions and coatings having improved overall visual appearance, richness or depth of color and aesthetic properties such as for spraying-painting automobiles, boats, aircraft and home appliances. The present paint compositions are high solids content, heat-curable, transparent or translucent compositions containing embedded light-refractive colorless and/or tinted transparent glass beads preferably between about 10 to 20 microns diameter, and one or more color-enhancing agents such as pigments, dyes, aluminum flakes, mica, opaque glass beads, holographic flakes, and similar conventional light-enhancing agents. The present bead-containing refractive paint compositions may be based upon volatile organic solvents, water or may be solvent-free powder compositions, but in all cases the resinous binder material is cross-linkable at the baking temperature of the paint, or upon exposure to ultraviolet radiation, to cure as a hard, translucent, chip-resistant paint.

Abstract: Provided is a liquid curable resin composition which can produce transparent cured products with a high refractive index, high hardness, and superior abrasion resistance, and which can be suitably used as a coating material. The liquid curable resin composition comprises: (A) a poly-functional (meth)acrylic compound having at least three (meth) acryloyl groups in the molecule; (B) a reaction product obtained by the reaction of a compound having a polymerizable unsaturated group and alkoxysilyl group in the molecule and particles metal oxide, the metals being preferably selected from the group consisting of zirconium, antimony, zinc, tin, cerium, and titanium; and (C) a radiation polymerization initiator.

Abstract: The present invention provides the novel thermoelectric materials having, in combination, processability and excellent thermoelectric characteristics, the thermoelectric materials being able to provide n-type thermoelectric characteristics in accordance with the nature of the employed inorganic thermoelectric materials; a thermoelectric device employing the materials; and a method for producing the thermoelectric materials.

Abstract: The invention relates to a cylindrical resinous base-body for a photosensitive drum, and a photosensitive drum that includes the resinous base-body.

Abstract: A paste composition having a high thermal conductivity and a relatively low viscosity is used to provide a thermal conductive connection between an electronic component and a cooling device to increase the heat transfer rate between the component and the device cooling the electronic component. The paste composition comprises a non-aqueous dielectric carrier, thermally conductive filler particles and a specially defined dispersant comprising the self-condensation reaction product of a hydroxy fatty acid, the reaction product having an acid number of about 30-100. A 12-hydroxy stearic acid self condensed reaction product is the preferred dispersant.

Abstract: A silicone rubber composition loaded with a soft magnetic metal powder and optionally, a heat conductive filler and having in the cured state a thermal conductivity of at least 2.0 w/mK is suitable for forming heat dissipating sheets having both a heat transfer function and a noise attenuation function, which are effective for preventing malfunction of CPU.

Abstract: A potting compound for use in the fabrication of fiber optic gyro sensor coils utilizes a silver-filled silicone base to reduce gyro sensitivity to changes in heat rate and thereby improve gyro performance during warm-up and periods of thermal cycling.

Abstract: A colored metallic powder coating composition comprises a colored metallic flake adhered onto each particle surface of a resin powder.

Abstract: The present invention relates to a novel resin composition which is excellent in the balance of impact resistance, chemical resistance and fluidity as well as heat resistance and flame retardancy, and to a method for obtaining the composition. Particularly, it relates to a resin composition comprising: (A) 70 to 99 parts by weight of a polyphenylene ether resin, and (B) 1 to 30 parts by weight of a liquid-crystal polyester, wherein the polyphenylene ether resin in the composition contains 10 to 30 wt. % of polymer having a molecular weight of 20,000 or less and has a molecular weight distribution (Mw/Mn) of 1.8 to 3.5.

Abstract: A chloroprene type rubber composition which comprises a chloroprene type rubber, a carbon black having an average stacking height Lc of at least 2 nm in a C axis direction of the layer planes in the crystallites, and a zinc powder.

Abstract: A polycarbonate/polyester resin formulation has enhanced impact resistance and comprises a polycarbonate resin, a polyester resin, flakes having a desired coloration, and a modifier selected to enhance the impact strength of the molded resin.

Abstract: In a component having vibration-damping properties, a mixture for manufacturing the component, and a method of manufacturing such a component, the component has granular and/or grain- and/or flake-shaped piezoelectric particles which are embedded in a polymer matrix in a proportion of at least 10 volume %. In order to improve the damping effect, at least some of the piezoelectric particles have a polarization which is different from zero.

Abstract: Method and apparatus for producing objects from fibrous monolith composites are provided. Two- and three-dimensional objects can be prepared from a continuous fibrous monolith filament. The objects can have complex geometries.

Abstract: Thermosetting and thermoplastic elastomers are provided having magnetic filler packed within the elastomeric matrix and capable of being aligned and energized, before, during or after the molding of the elastomer. The magnetically-filled elastomers therefore provide useful permanent magnetic fields which being physically soft. The magnetic filler is aligned within the elastomeric matrix and energized by subjecting the magnetically-filled elastomer to magnetic energy before, during and/or after molding of the magnetically-filled elastomer. A particularly preferred magnetically-filled elastomer is a magnetically-filled polyurethane elastomer composition wherein the elastomer is the reaction product of a urethane-forming compound having at least two urethane-forming reactive sites, an elasticizing diol or triol, and a diisocyanate reacted in less than stoiciometric amounts to allow for the formation of urethane linkages involving less than about 85% of the urethane-forming reactive sites.

Abstract: A method is provided for fabricating metallic microstructures, i.e., microcomponents of micron or submicron dimensions. A molding composition is prepared containing an optional binder and nanometer size (1 to 1000 nm in diameter) metallic particles. A mold, such as a lithographically patterned mold, preferably a LIGA or a negative photoresist mold, is filled with the molding composition and compressed. The resulting microstructures are then removed from the mold and the resulting metallic microstructures so provided are then sintered.

Abstract: A curable coating composition is disclosed comprising a resinous binder comprising (a) a reaction product of an epoxy-containing polymer with a compound containing phosphorus acid groups, the reaction product having reactive functional groups, and (b) a curing agent having functional groups reactive with the functional groups of (a). An electroconductive pigment is dispersed in (a) such that the weight ratio of the electroconductive pigment to (a) plus (b) is within the range of 0.5 to 9.0:1. When the curable coating composition is deposited and cured on a metal substrate, the cured coating is weldable.

Abstract: A curable material useful as thermal material comprises at least one vinyl-terminated silicone oil, at least one conductive filler, and at least one hydrogen terminated silicone oil. The hydrogen terminated silicone oil is used to reduce a shear modulus G′ of the cured thermal interface material.

Abstract: A curable material useful as thermal material comprises at least one vinyl-terminated silicone oil; at least one conductive filler; and at least one hydrogen terminated silicone oil. The hydrogen terminated silicone oil is used to reduce a shear modulus G′ of the cured thermal interface material.

Abstract: Disclosed is a polymeric PTC composition comprising an organic polymer and conductive particles having a melting point of not less than 2000° C. dispersed therein and a circuit protection device comprising a PTC element comprising the PTC composition which are treated with a coupling agent and at least two electrodes which are electrically connected to the PTC element. The polymeric PTC composition is used to provide a circuit protection device having excellent environmental resistance properties, which exhibits a low resistance under normal operating conditions, and protects the circuit against the over-current even under large electric current and high voltage.

Abstract: The present invention involves the use of powder coating methods to form coated abrasives. In one embodiment, the powder is in the form of a multiplicity of binder precursor particles comprising a radiation curable component. In other embodiments, the powder comprises at least one metal salt of a fatty acid and optionally an organic component that may be a thermoplastic macromolecule, a radiation curable component, and/or a thermally curable macromolecule. In either embodiment, the powder exists as a solid under the desired dry coating conditions, but is easily melted at relatively low temperatures and then solidified also at reasonably low processing temperatures. The principles of the present invention can be applied to form make coats, size coats, and/or supersize coats, as desired.

Abstract: Nanoparticle composites and nanocapsules for guest encapsulation and methods for synthesizing same. One synthesis method includes providing a nanoparticle template; and forming a shell on the nanoparticle template by polymerizing a monomer on the nanoparticle template to form a nanoparticle composite defined by the shell and the nanoparticle template. Another synthesis method includes providing a nanoparticle template; forming a shell on the nanoparticle template by polymerizing a monomer on the nanoparticle template; and dissolving the nanoparticle template to thereby form a hollow nanocapsule defined by the shell. Another synthesis method includes providing a nanoparticle template carrying a guest molecule; and forming a shell on the nanoparticle template by polymerizing a monomer on the nanoparticle template to thereby encapsulate the guest molecule.

Abstract: A method of preparing fiber reinforced acrylic thickened compositions which can be molded under low pressures and temperatures to provide thermoset articles, wherein liquid reactive components are slowly absorbed in high molecular weight solid acrylic resin in the form of large particles. The acrylic resin functions as a thickener which delays the viscosity build allowing fiber reinforcement to be incorporated before molding. The molding composition is well suited for use in dentistry and other fields where small amounts or molding composition are used occasionally.

Abstract: An optically nonisotropic composite material. The composite material includes two materials, a transparent bulk optical material and radiation absorbing or reflecting fibers embedded within the bulk material. The fibers are substantially parallel to one another and tend to channel the radiation along the direction of the fibers. The bulk material may be a scintillator, in which case the fibers will tend to channel scintillating radiation along the direction of the fibers. The composite material may be used in a high spatial resolution x-ray device, such as a CT scanner. The composite material may also be used in an electromagnetic radiation detection device. Advantageously, the fibers tend to channel radiation along the fibers towards photodetector cells of the radiation detection device thereby increasing spatial resolution.

Abstract: A phase change composition that is useful as a thermally conductive interface composition between a heat sink and an electronic component that includes:

Abstract: The present invention provides to an organo-bridged ladderlike polysiloxane having the following formula: and a tube-like organosilicon polymer, complexes thereof and the method for producing the same.

Abstract: There is described a curable coating composition having at least one effect pigment which, upon cure, exhibits substantially improved orientation of the effect pigment and a corresponding improvement in appearance. The composition comprises: (A) a carbamate-functional component having a hydrophobicity equivalent to or greater than that of a carbamate-functional compound (A′) which is the reaction product of: (1) a compound comprising a plurality of hydroxyl groups, at least one of which is the result of a ring-opening reaction between an epoxy group and an organic acid group, and (2) cyanic acid or a compound comprising a carbamate group, and (B) a component comprising a plurality of groups that are reactive with the carbamate functional groups on component (A), and (C) at least one effect pigment, the curable coating composition when cured having a substantially improved effect pigment orientation. Preferably, the composition further comprises particular rheology control agents.

Abstract: A blended solid composition is provided containing a fibrillatable microparticulate PTFE polymer in an unfibrillated state and at least one elastomeric and/or fluoroplastic component. The composition is useful in making microfiber-reinforced solid compositions and articles produced therefrom.

Abstract: A method of molding an evenly colored, thermally conductive composition. Thermally conductive filler material is colored and mixed with a base polymer matrix. The mixture is molded into the desired shape. The step of for coloring the filler material is tailored to the type of thermally conductive filler used and could include, as required, anodizing, spraying or dying of the material before mixing with the base polymer matrix and prior to molding.

Abstract: A method of molding an evenly colored, thermally conductive composition. Thermally conductive filler material is colored and mixed with a base polymer matrix. The mixture is molded into the desired shape. The step of for coloring the filler material is tailored to the type of thermally conductive filler used and could include, as required, anodizing, spraying or dying of the material before mixing with the base polymer matrix and prior to molding.

Abstract: A composition including a thermoplastic resin, and a combustion accelerator composed of an inorganic carrier and a platinum group element supported on the inorganic carrier in an amount of 0.001-0.2% by weight based on a total weight of the inorganic carrier and the platinum group element. The combustion accelerator is in the form of particles and present in such an amount that the concentration of the platinum group element is 0.5-100 ppm by weight based on a total weight of the combustion accelerator and the thermoplastic resin.

Abstract: The present invention relates to a binder composition comprising a polycarbonate polymer; an ethylenebisamide wax; a guanidine wetting agent, and an additive which accelerates or delays completion of debinding of the binder composition. The present invention further relates to a method for forming a sintered part by powder injection molding, including the steps of forming a green composition comprising a binder and an inorganic powder, wherein binder is a composition comprising a polycarbonate polymer, an ethylenebisamide wax, a guanidine wetting agent and an additive which accelerates or delays completion of debinding of the binder; melting the composition; injecting the composition into a mold for a part; heating the part to a temperature at which the binder decomposes; heating the part to a temperature at which the inorganic powder is sintered. The binder composition of the present invention is useful for press and sinter applications as well as for powder injection molding applications.