Abstract: Fluoropolymers having a —CF adjacent to a —CH which are subsequently dehydrofluorinated to create a —C?C— can be used as controlled release carriers for therapeutic agent(s) by covalently conjugating the therapeutic agent(s) to the fluoropolymer at the —C?C—.

Abstract: A process for the production of virtually full density polyolefin suitable for further processing by drawing to form a high tenacity, highly oriented polyolefin sheet comprising: a) feeding a metered amount of polyolefin powder into the nip between two heated calender rolls; b) rolling the powder through the nip under these conditions until a coherent sheet of polyolefin is produced. According to a highly preferred embodiment, initially, the nip is set at a gap smaller than the size of the smallest polyolefin powder particle and at a temperature above the melting point of the powder and once a coherent sheet of polyolefin exits the nip the temperature in the nip is lowered to a temperature below the melting point of the polyolefin powder and the gap increased to a desired level above the thickness of the largest powder particle.

Abstract: A process for the production of virtually full density polyolefin suitable for further processing by drawing to form a high tenacity, highly oriented polyolefin sheet comprising: a) feeding a metered amount of polyolefin powder into the nip between two heated calendar rolls initially set at a gap smaller than the size of the smallest polyolefin powder particle and at a temperature above the melting point of the powder; b) rolling the powder through the nip under these conditions until a coherent sheet of polyolefin is produced: and c) once a coherent sheet of polyolefin exits the nip lowering the temperature in the nip to a temperature below the melting point of the polyolefin powder and increasing the gap to a desired level above the thickness of the largest powder particle. Apparatus for the performance of such a process is also described.

Abstract: The invention relates to a process for the production of a shaped article comprising the compression of one or more fibre layers containing polyolefin fibres. The invention also relates to shaped articles obtainable with the process according to the invention and their use in anti-ballistic applications. In the process according to the invention the fibre layers contain 0.02 to 25 wt. % of a solvent for the polyolefin. The shaped articles obtained have an improved anti-ballistic quality.

Abstract: A method of forming a reinforced building product from garbage, comprising the steps of sorting garbage, shredding plastics within the garbage, shredding fibers within the garbage, heating the shredded plastics, forming a slurry from the plastics and fibers, disposing the slurry within an extrusion cavity, extruding the fluid through a venturi, and allowing the extruded materials to cool. Garbage is separated into plastics, fibers, and other materials. Plastics are shredded to facilitate melting. Fibers are shredded to macroscopic lengths no greater than a maximum internal diameter of a venturi. The plastics are melted. The melted plastics are mixed with fibers and other material to form a slurry that is extruded from a cavity through a venturi, thereby causing significant alignment of the shredded fibers within the slurry in an outer region of the extruded slurry. Cooled, there is reinforced building material.

Abstract: A material comprising aerogel particles and a polytetrafluoroethylene (PTFE) binder is formed having a thermal conductivity of less than or equal to 25 mW/m K at atmospheric conditions. The material is moldable or formable, having little or no shedding of filler particles, and may be formed into structures such as tapes or composites, for example, by bonding the material between two outer layers. Advantageously, composites may be flexed, stretched, or bent without significant dusting or loss of insulating properties.

Abstract: A disposable biodegradable container made of a mixture of biodegradable materials to make a disposable container and a method of manufacturing the same are disclosed. The biodegradable material is produced by mixing chaff, saw dust, straw, pulp or a combination thereof with starch, palm fiber, and melamin resin to produce a mixture; pouring the mixture into a mold; and pressurizing the mixture at high temperature and a high pressure at three times. Accordingly, a disposable container having an excellent hardness, elasticity and compact texture can be manufactured by using the biodegradable materials. Also, it is possible to further enhance physical properties of a disposable container by mixing the mixture with esters, polysorbates, stearyl sodium lactates.

Abstract: A multi-calender process for forming a high modulus, high strength component for use in ballistic-resistant articles. The process includes forming ultrahigh molecular weight polyethylene powder into a uniform sheet at a low pressure. Multiple calender units mold and draw the uniform sheet into a non-fibrous, monolithic, ultra high molecular weight polyethylene tape. The multi-calender process and subsequent draw stages stretch the non-fibrous UHMWPE tape to a total draw of at least 100 to 1 to produce a high modulus, high strength UHMWPE component with a modulus of 1,400 grams per denier or greater. The multi-calender process of the present invention enables production of a high-strength, high-modulus UHMWPE component for ballistic-resistant articles and other applications at significantly higher rates and at a lower unit cost.

Abstract: In one aspect, the present invention is a thin-layer lignocellulose composite having increased resistance to moisture. The thin-layer lignocellulosic composite includes a mixture of no more than about 95% by weight of a lignocellulosic fiber and at least about 5% by weight of an organic isocyanate resin. The mixture further includes short fibers and a release agent that does not interfere with subsequent processing of the thin-layer lignocellulosic composite. The mixture is pressed between two dies at an elevated temperature and pressure and for a sufficient time to form a thin-layer composite of predetermined thickness, and to allow the isocyanate resin to interact with the lignocellulosic fiber and short fibers such that the resultant thin-layer composite has a predetermined resistance to moisture.

Abstract: The invention relates to a method for pressing a formed part, in which a ceramic and/or metallic material to be pressed, in particular powdery and/or granulated material (3) is being filled into the die cavity (2) of a die (1), in an axis of compaction (X) with at least one pressing punch (4, 5) the material (3) is being pressed, and in a direction, with a component of movement perpendicular to the first axis of compaction (X), a transverse punch (6) is being moved into the material (3) in a transverse axis (QX), with the movement of the transverse punch (6) being carried out during and/or after pressing of the material (3) in the axis of compaction (X), in particular during and/or after beginning of the compaction operation of the material (3). In particular there is carried out according to the method the actuation of pressing punches in the axis of compaction in such a way, that there act onto the transverse punch in the direction of the axis of compaction on both sides approximately equal forces.

Abstract: The invention rates to a method and apparatus for producing a coal cake for coking, in which a bed (3) of coal is compacted in a mould (2) by pulses of hammers (19) which act on the bed, and is solidified to form a block. In accordance with the invention the bed (3) is not only worked on in pulses by the hammers (19) but is also subjected to compression.

Abstract: In one aspect, the invention includes an aqueous composition for coating articles including isocyanate resins. The coating composition includes from about 50% to about 100% by weight of at least one thermoplastic acrylic polymer; from about 0.1% to about 20% by weight titanium dioxide; and water. The composition has a basic pH, a solids ratio of from about 58% to about 69% by weight, and is substantially free of quartz pigments.

Abstract: Processes for manufacturing stoppers from mixed material agglomerate are provided. According to one embodiment, a homogenized mass is produced by processing a mixture in which cork power, having particle sizes approximately within a range of 30 to 300 mesh, predominates with agglomerating equipment, the mixture also including rubber or resin, a cross-linking agent and an expander. Rollers are then produced according to a predefined measurement of desired stoppers by passing the homogenized mass through a cylindrical extruder. The rollers are then finished and expanded and reticulated in a press machine. Finally, the rollers are polished and severed to form appropriate dimensional shapes. In one embodiment, the agglomerated and homogenized mass can also be shaped in expanded and cross-linked plates, from which, through drills, molds, and/or other suitable tool equipment, the corks are obtained in the desired measures.

Abstract: A process and apparatus for forming agglomerates of a powder composition of an active and binder such as a homopolymer or copolymer which includes passing the composition through a hot roller compactor to heat said binder material above its glass transition temperature.

Abstract: A novel densified fluoropolymer article is described which has a water vapor permeation of about 0.015 g-mm/m2/day or less, and preferably has a matrix tensile strength of at least 10,000 psi in two orthogonal directions. The articles are made by compressing expanded porous PTFE at pressures, temperatures and times which result in elimination of the pores, and subsequent stretching above the crystalline melt temperature.

Abstract: A graphite-particles-dispersed composite produced by compacting graphite particles coated with a high-thermal-conductivity metal such as silver, copper and aluminum, the graphite particles having an average particle size of 20-500 ?m, the volume ratio of the graphite particles to the metal being 60/40-95/5, and the composite having thermal conductivity of 150 W/mK or more in at least one direction.

Abstract: A decorative article of manufacture includes a substrate having a surface of thermoplastic material and one or more relief portions extending from the substrate surface. The one or more relief portions are formed from a blend of powdered thermoplastic material and powdered non-thermoplastic material, wherein the powdered non-thermoplastic material is selected from the group consisting of metals, glass, minerals, and combinations thereof, wherein the powdered thermoplastic material is fused together and to the substrate thermoplastic material.

Abstract: The present invention provides a manufacture method for processing bamboo timber into high strength and xylon type bamboo timber methods for rearranging bamboo timber fibers, and articles formed of the xylon type bamboo timber.

Abstract: A multi-calender process for forming a high modulus, high strength component for use in ballistic-resistant articles. The process includes forming ultrahigh molecular weight polyethylene powder into a uniform sheet at a low pressure. Multiple calender units mold and draw the uniform sheet into a non-fibrous, monolithic, ultra high molecular weight polyethylene tape. The multi-calender process and subsequent draw stages stretch the non-fibrous UHMWPE tape to a total draw of at least 100 to 1 to produce a high modulus, high strength UHMWPE component with a modulus of 1,400 grams per denier or greater. The multi-calender process of the present invention enables production of a high-strength, high-modulus UHMWPE component for ballistic-resistant articles and other applications at significantly higher rates and at a lower unit cost.

Abstract: Fibrous composite articles and method of manufacturing the same are disclosed. The preferred fibrous materials have average fiber lengths of less than about 2 millimeters, and are obtained from industrial hemp hurd, kenaf hurd, and/or the culms of various species of vegetable bamboo. The fibers are combined with a binder resin and, optionally, a sizing agent to form a mat that is consolidated under heat and pressure to form the composite articles. The formed articles exhibit strength and durability characteristics at least roughly equivalent, if not superior, to those of conventional wood-based fibrous composite articles.

Abstract: A method to produce thin-layer lignocellulosic composites, such as wood-based doorskins, that exhibit substantial resistance to moisture is disclosed. In an embodiment, the method includes the steps of forming a mixture including a refined lignocellulosic fiber, wax, and an organic isocyanate resin. The mixture is initially pressed to form a loose mat. Subsequently, the mat is pressed between two dies at an elevated temperature and pressure to further reduce the thickness of the mat and to promote the interaction of the resin with the lignocellulosic fibers. In an embodiment, a release agent is included as part of the fiber mixture, or sprayed onto the surface of the mat. The thin-layer lignocellulosic composites of the present invention exhibit strong surface strength, high adhesiveness, and a 50% reduction in linear expansion and thickness swelling upon exposure to a high moisture environment as compared to thin-layer composites that do not include the isocyanate resin.

Abstract: Thin-layer lignocellulosic composites made using hybrid poplar and methods for the manufacture of such thin-layer composites are disclosed. Also described is a process for making thin-layer lignocellulosic composite door skins using hybrid poplar wood fiber.

Abstract: The subject of the invention is a unit for manufacturing felts (6) which are formed from crosslinked mineral fibers, comprising at least one pair of conveyors formed by a lower conveyor (11) and an upper conveyor (12) which are placed opposite each other and intended to compress said felt (6) in at least one direction, a means (13) for heat treating the felt (6) after it has passed through the conveyors (11, 12) comprising at least one means (14) placed between the conveyors (11, 12) and the heat treatment means (13), intended to prevent decompression of the felt (6) in this region, said means comprising at least one cam (14) having a profile suitable for keeping a constant and minimum distance between the conveyors (11, 12) and the heat treatment means (13), and in that at least one of the conveyors is rigidly connected to one element of the heat treatment means (13).

Abstract: A method of manufacturing a contoured, consolidated cellulosic article, with variable basis weight, is disclosed. The method employs a former to create a mat having a substantially uniform thickness which is pre-pressed to retain its shape. The pre-pressed mat is then machined along at least one surface to result in a desirable contour. The contoured mat is then consolidated within a secondary press. The secondary press preferably includes platens shaped complementarily to the surfaces of the mat.

Abstract: The present invention concerns an apparatus and a method for making and compressing growth medium pots, where the growth medium pots are made as a growth medium pipe, where a tubular wall is formed by the fibre-containing material, where the growth medium pipe contains slightly compressed growth medium. It is the purpose of the invention to achieved an apparatus and a method for cheap and efficient production of firmly compressed growth medium pots, where the growth medium pots are rapidly and efficiently compressed contained in the fibre-containing material.

Abstract: A method for forming an ultrafine particle brittle material at low temperature which includes the steps of applying a mechanical impact force or a pressure to a ultrafine particle brittle material so as to have a percentage in the ultrafine particles having a primary particle diameter less than 50 nm in all the particles of 10 to 90%, subjecting the resulting brittle material to a heat treatment at a temperature not higher than the sintering temperature thereof so as to have the above percentage of 50% or less, and then applying a mechanical impact force not less than the crushing strength to the resultant material, to crush the material, thereby joining the ultrafine particles in the brittle material with one another, to form a formed article of the ultrafine particle brittle material; and an ultrafine particle brittle material for use in the method.

Abstract: A material comprising aerogel particles and a polytetrafluoroethylene (PTFE) binder is formed having a thermal conductivity of less than or equal to 25 mW/m K at atmospheric conditions. The material is moldable or formable, having little or no shedding of filler particles, and may be formed into structures such as tapes or composites, for example, by bonding the material between two outer layers. Advantageously, composites may be flexed, stretched, or bent without significant dusting or loss of insulating properties.

Abstract: A material comprising aerogel particles and a polytetrafluoroethylene (PTFE) binder is formed having a thermal conductivity of less than or equal to 25 mW/m K at atmospheric conditions. The material is moldable or formable, having little or no shedding of filler particles, and may be formed into structures such as tapes or composites, for example, by bonding the material between two outer layers. Advantageously, composites may be flexed, stretched, or bent without significant dusting or loss of insulating properties.

Abstract: To manufacture a multi-core press-coated molded product efficiently and in a single step from molding materials, namely, powder or granular particles, a punch has been devised that is characterized in that the punch, consists of a center punch whose tip portion is split into two or more parts, and an outer punch enclosing the outer perimeter of the center punch, and whose tip portion fills the gap at the tip portion of the center punch, with both the center and outer punches being slidable and manipulatable for compression operation the method of manufacturing a multi-core press-coated molded product using the punch of the invention as compression molding means for at least the upper punch and preferably for both the upper and lower punches, and a rotary compression molding machine therefore is also discribed.

Abstract: A material comprising aerogel particles and a polytetrafluoroethylene (PTFE) binder is formed having a thermal conductivity of less than or equal to 25 mW/m K at atmospheric conditions. The material is moldable or formable, having little or no shedding of filler particles, and may be formed into structures such as tapes or composites, for example, by bonding the material between two outer layers. Advantageously, composites may be flexed, stretched, or bent without significant dusting or loss of insulating properties.

Abstract: The present invention is a method of forming and heating a compressed composite wood product. The method includes introducing a mat assembly of resinated discrete wood elements into an oscillating compression press. Once the material is within the oscillating compression press, the compression/release oscillation is controlled to form the material. Specifically, the compression/release oscillation is controlled to heat the mat assembly to a to at least a cure temperature of the resin.

Abstract: Disclosed herein is a method of manufacturing expanded graphite products. The method comprises the steps of a) compressing expanded graphite to form a graphite thin film, b) milling the graphite thin film to form graphite flakes, and c) placing the graphite flakes in a mold and compressing the graphite flakes to form a predetermined shape, wherein during at least any one of the steps a), b) and c), a binder is mixed with the expanded graphite. There are provided advantageous effects that as the density of the expanded graphite product increases through respective manufacturing steps, not only are initial equipment costs reduced due to minimized equipment, but also an expanded graphite product having a uniform density and a closely packed structure is provided. Additionally, since the expanded graphite product is finally compressed in the mold, the expanded graphite product does not have directional preference and can be formed into various shapes.

Abstract: A corrugated wooden fiberboard panel system provides a new structural member for use in the construction of building walls, ceilings, and floors as a substitute for conventional framing members, such as studs and joists.

Abstract: The device comprises a stamping member (2) arranged to be conveyed towards and hit a material body (1) with such a velocity that a rebound motion of the stamping member (2) is generated while a permanent deformation of the material body (1) is generated. The device has structure (3) for counteracting the rebound and generating at least one additional impact of the stamping member (2) against the material body (1) within a period, during which kinetic energy in the material body (1) generates an additional deformation in the body.

Abstract: A method for forming an article in which thermoplastics materials are used as the binding agent. Materials (21) are shredded in a shredder (1), compressed in a compressing chamber (15) and moulded in a moulding chamber (16, 17, 19, 20, 26, 27). The thermoplastics material is heated whilst the material is held under compression and then cooled to bind the material together. In one embodiment superheated steam is supplied via tubes (31) having apertures there along. In another embodiment superheated steam is supplied via apertures in side walls of the mould (58, 59). Blocks (62, 72) formed by the method and apparatus of the invention may find application as construction materials etc. and have good structural, thermal and acoustic properties.

Abstract: The present invention is a method of forming a compressed product. The method includes introducing a material into a press that is oscillating between a compression phase and a release phase. The material has a compression recovery response time when compressed and released. The compressed product is formed by repeatedly compressing the material during the compression phase and releasing the material during the release phase.

Abstract: The present invention is a method of forming a compressed product. The method includes introducing a material into a press. The material has a flow direction through the press. The press is arranged to have at least one platen oscillating between a compression phase and a release phase. The at least one platen is configured to impart a compressive force onto the material during the compression phase such that the force is applied initially at an acute compression vector angle relative to the material flow direction. As a function of the angled compressive force, the material is transported a distance through the press and then released during the release phase.

Abstract: The invention is directed to methods involving rewetting of expandable polymers with a wettable liquid to allow for enhanced expansion at or below room temperature without breakage, and in some cases, allows one to achieve a greater expansion ratio than that allowed at elevated temperatures using known methods. The wettable liquid can be formed of a drug and/or an agent, such that the resulting polymer contains and emits the drug upon positioning at a target location of a patient body. The expandable polymer can also have the drug or agent added to its structure at a polymer resin preparation stage, through use of an aqueous solution mixed with one or more fluoropolymers, or in a mixing stage. The present invention also allows one to achieve material with unique properties and handling characteristics. These properties included decreased material thickness, increased density, an altered node/fibril morphology, and a more consistent web in the case of flat material.

Abstract: The invention relates to molding a right cylindrical body from a settable loose granular composition in a mold cavity, in which a mold cavity (4) is fed with successive charges of the composition in the loose state and each new charge is thrust by means of thrust surfaces (11) into the surface S of the molded composition in order to cause the new charge and the molded composition to interpenetrate in such a manner as to densify the molded composition. The invention is applicable to making a pipe, in particular out of a cement composition.

Abstract: The invention is directed to methods involving rewetting of expandable polymers with a wettable liquid to allow for enhanced expansion at or below room temperature without breakage, and in some cases, allows one to achieve a greater expansion ratio than that allowed at elevated temperatures using known methods. The wettable liquid can be formed of a drug and/or an agent, such that the resulting polymer contains and emits the drug upon positioning at a target location of a patient body. The present invention also allows one to achieve material with unique properties and handling characteristics. These properties included decreased material thickness, increased density, an altered node/fibril morphology, and a more consistent web in the case of flat material.

Abstract: The vacuum insulator in accordance with the present invention comprises glass white wool body which density is 0.1˜0.5 g/cm3 in density and is below 0.0023 kcal/mh° C. in thermal conductivity, and a non permeable container surrounding the body in which the pressure is between 10?6 ˜10?1 torr. The vacuum insulator is fabricated by piling up glass white wool, thermal-pressutizing the piled glass white wool to form a body of 0.1˜0.5 g/cm3 in density wherein the pressurizing is done at 0.007˜1.5 kg/cm2 and under 20° C. for more than 10 minutes, putting the body in the non-permeable container, and producing a vacuum in the container.

Abstract: A process for the production of tablets with a cavity using a press, equipped with upper and lower punches, the lower punch comprising a ring portion being able to reciprocate, characterized in that a central member is provided within the ring portion of the lower punch, this central member being fixed in a pre-determined position beneath the upper part of the die during the process and that, at some stage before the first compression step, the ring portion of the lower punch is adjusted at a position beneath the level of the upper end of the central member.

Abstract: A plant (10) for the production of highly flexible and relatively thin sheets or panels (38) of agglomerate material comprising: a mixer crusher (12), a hopper (15) designed to accept the crushed and rolled material (24) and to transfer it to a distributor or spreader (16) positioned below the hopper, said spreader (16) comprising a substantially cylindrical container (30) with a loading opening (31), adjacent, in use, to said hopper (15) and comprising a discharge slot (32) on the opposite side to said opening (31), and a mixing device of the agglomerate material (24) inside said container (30). The mixing device comprises a pair of blades (35) fixed to a shaft (34) rotating around an axis not corresponding to that of said container (30) and in particular offset towards said slot (32), so that during their rotation the blades almost skim said slot.

Abstract: Method of forming a fiber web (210) intended for use in absorbent products, such as sanitary towels, by air-laying fibers. Separate air flows containing fibers are fed to a number n of different mat-forming wheels (160, 170, 180), where n is a whole number which is at least 2. Separate web layers (161, 171, 181) are formed on each mat-forming wheel. The fiber web (210) is formed by virtue of said web layers being combined downstream of the mat-forming wheels to form a common fiber web which is imparted very great manufacturing accuracy by virtue of the manufacturing method. The manufacturing speed and thus the web speed can be very high, and the desired manufacturing accuracy at the web speed concerned is achieved by selecting a sufficiently great number n of mat-forming wheels. The invention also relates to a fiber web manufactured according to the method.

Abstract: A method of making a low friction bearing for use when immersed in a liquid particularly water is provided comprising a synthetic resin composition which includes powders of a rice bran ceramic, carbon rice bran ceramic or both which are uniformly dispersed in a synthetic resin. The weight ratio between the RBC or CRBC powders and the synthetic resin is 30:90 to 70:10.

Abstract: A method and a production plant for production of sheets with substantially stiff structure of paper material comprise the steps of paper grinding to obtain paper flakes, spreading the flakes to obtain a carpet of flakes, sprinkling the carpet with gluing liquid, accomplishing a first compacting of the flakes and accomplishing a second compacting of the carpet during which is executed a simultaneous forming to obtain a sheet with a plurality of stiffening dishes.

Abstract: An apparatus for fabricating small compacts of formulations of a drug candidate, and a method for determining if a drug candidate, alone or in a formula mix, is suitable for dry granulation by a roller compactor based on physical measurements generated in part from such small compact.

Abstract: A method and system for pressing lignocellulosic and/or cellulosic materials to produce composite products such as medium density fiberboard subjects a mat of material to a alternating or vibratory force normal to the top face of the mat. The frequency of the alternating forces may be between 0.2 Hz and 2 Hz. This vibratory pressing action serves to cause heat to be transferred more quickly to the core of the mat from the surface, and reduces the pressing time required for thermosetting resins within the mat to cure. The system has a press for accepting the mat; a temperature sensor for sensing the temperature of the core of the mat; a control system for accepting a first signal from the temperature sensor and in response to that signal causing the press to apply vibratory forces to the mat normal to the surface of the mat when the core of the mat is below a predetermined temperature.

Abstract: In a method of manufacturing a friction member used for a vibration wave driving apparatus including a vibration member, a contact member which is brought into frictional contact with the vibration member and relatively moved by vibrations produced in the vibration member, and the friction member formed on one of friction portions of the vibration member and contact member, a molded member is formed by compression molding of a plastic powder and an additive, a sintered member is formed by sintering the molded member, a sheet is formed by cutting the sintered member in the form of a sheet, and a modified layer formed by cutting is removed from the friction surface of the sheet.

Abstract: The invention relates to a process for producing a fiber composite material containing fibers with a high hot strength, in particular based on carbon, silicon, boron and/or nitrogen, a pressing compound being produced from fibers, a binder and, if appropriate, fillers and/or additives, which is then pressed in a press mold to form a green body. Various pressing compounds are produced, which contain fibers of different qualities and/or in different proportions, and the press mold is filled with the various pressing compounds in a number of successive steps. The invention also relates to a fiber composite material of this nature.