Abstract:
Metal, ceramic and cermet articles produced from low viscosity suspensions. The articles include micro diameter hollow fibers, meshes and open cell foams. The articles are useful for filters, catalyst media, fuel cell electrodes, body implantation devices, structural materials, vibration and noise control, heat exchangers, heat sinks, heat pipes, heat shields and other applications.
Abstract:
Modified open-cell aminoplastic foams with a density in the range from 5 to 1,000 kg/m3 and with an average pore diameter in the range from 1 μm to 1 mm, comprising an amount in the range from 1 to 2,500% by weight, based on the weight of the un-modified open-cell foam, of at least one water-insoluble polymer (b), selected from polystyrene, styrene copolymers, polybutadiene, butadiene copolymers, polyvinylesters, polyvinylethers, copolymers from (meth)acrylic acid with at least one (meth)acrylate, and polyurethanes with the proviso that styrene-acrylonitrile-C1-C10-alkyl (meth)acrylate terpolymers, styrene-butadiene-n-butyl acrylate terpolymers, and styrene-maleic anhydride copolymers are excluded
Abstract:
Monodisperse polymer microparticles comprising polystyrene or polyacrylate, wherein said particles have a coating formed of at least one transition metal oxide or porous polymer microparticles comprising polystyrene or polyacrylate, wherein said particles have a coating formed of at least one transition metal oxide. The use of such particles in a method for isolation of phosphoproteins from a sample containing phosphoproteins or for isolating nucleic acid from a sample containing nucleic acid is also described
Abstract:
An object of the present invention is to prevent the occurrence of resinous gloss on the surface of a molded porous material into which a synthetic resin is impregnated, and to attain this object, the present invention provides a resin compound for processing a porous material by coating, impregnating or mixing it on/in to the porous material wherein a colloidal silica is added to a thermosetting resin in an amount of more than 5% by mass, so that when the porous material which is processed by the resin compound is press molded, and as the resin compound oozes to the surface of the resulting molded porous material, the colloidal silica prevents the occurrence of the resinous gloss on the surface of the molded porous material.
Abstract:
A composition comprising: (i) expanded or expandable polystyrene beads or particles (ii) an intumescent, and (iii) a fire-resistant binder the weight of (i) being in the range 20-75% by weight based on the total weight of (i), (ii) and (iii) is disclosed. The fire-resistant binder is an inorganic material chosen from the list comprising metal, silicates, metal aluminates, metal amminosilicates and zeolites preferably an aqueous solution of sodium silicate. A method of preparing a fire-retardant polystyrene is also disclosed.
Abstract:
An apparatus 100 comprising a radiofrequency filter body housing 102. The radiofrequency filter body housing includes a polymeric composition 110 that includes at least one polymer foam 115 and filler material 120. The filler material is uniformly distributed and randomly oriented throughout the polymeric composition. The radiofrequency filter body housing also includes an electrically conductive material 125 coating the polymeric composition.
Abstract:
Disclosed is an expanded organic foam material having excellent thermal resistance and durability. The expanded plastic foam material is produced by preparing plastic beads or plastic foams, modifying silicate with at least one selected from among an alkaline earth metal compound, an alkaline earth metal compound-containing material, and an acid, coating the modified silicate on the prepared plastic beads or plastic foams, melt-molding the coated plastic beads or plastic foams while applying heat and pressure thereto, and drying the molded material. Also, the expanded organic plastic foam material has good impact-absorbing properties, easy formability, excellent sound-insulating and sound-absorbing performance and thermal insulating performance, good flame retardancy and thermal resistance, and improved water resistance and durability.
Abstract:
Process for production of foam webs or foam sheets, these webs or sheets being based on a polymer selected from polysulfones, polyetherimides, polyether ketones, and styrene polymers, via extrusion of a melt which comprises the polymer and a blowing agent, and then foaming of this melt, which comprises a process in which the melt also comprises from 1 to 50% by weight, based on the polymer, of a filler selected from A) a fibrous filler A, B) a particulate, non-graphite filler B, and mixtures of these.
Abstract:
A porous material comprising vapor grown carbon fiber in an amount of 10 to 90 mass %, fiber filaments of the carbon fiber forming a three-dimensional network and having a diameter of 1 to 1,000 nm, an aspect ratio of 5 to 15,000, a specific surface area (by BET method) of 2 to 2,000 m2/g, and the ratio of the intensity of the peak at 1,360 cm−1 in a Raman scattering spectrum of the carbon fiber to that of the peak at 1,580 cm−1 in the spectrum(I1360/I1580) is 0.1 to 2.0, wherein the porosity of the porous material (V/V0) is 0.50 to 0.99 and a specific surface area is 5 to 1,000 m2/g; and a production method and use thereof. The vapor grow carbon fiber impregnated in the porous material of the present invention does not contain aggregates and a three-dimensional network is formed between the fiber filaments, wherein length of each of the fiber filaments is maintained. Therefore, the vapor grown carbon fiber enables to readily produce a composite material (porous material), in which even a small amount of addition of vapor grown carbon fiber can exhibit sufficient effect.
Abstract:
A method for manufacturing an hydraulic binder or thermoplastic binder containing product including the steps of impregnating the binder into a flexible open cell polymeric foam element by compressing the foam element to exclude air from the open cells and then releasing the compression with the foam elements whilst in contact with the binder so that the binder penetrates and becomes contained in the open cells of the foam elements as it regains its shape. Alternatively impregnating the binder into the foam element from one side under pressure so that the binder penetrates and becomes contained in the open cells of the foam and then allowing the binder to set or hardened and dry to form the product. The product is particularly suitable as a building element.