Abstract: A shaped wholly aromatic polyamide resin composition article having an excellent mechanical strength, stain-proof property and antistatic property, and comprising a wholly aromatic polyamide resin matrix and a dispersoid comprising polytetrafluoroethylene resin particles in the form of fine networks of fibrils and, optionally, additional inorganic particles, dispersed in the matrix, is produced by mixing an aqueous dispersion of PTFE particles having an average size of 0.3 to 3 .mu.m in an amount of 0.01% to 10% based on the total weight of the shaped article, with wholly aromatic polyamide particles having a melting point of at least 50.degree. C. higher than that of PTFE and composed of porous secondary particles having an average size of 30 to 200 .mu.m and consisting of primary particles having an average size of 0.1 to 2.0 .mu.

Abstract: A method for compressing powder or granular material by a rotary tabletting machine (1), includes an initial step in which an opening (2) is filled with material to be compressed, a compacting step (C), in which a load is gradually applied to the material until a maximum value (F1) is reached, a first releasing step (R1) in which the load is removed, a precompression step (P), in which a second load (F2) is applied to the material, a precompression step (MP), in which the second load (F2) is maintained, and a second releasing step (R2), in which the second load is released, a main compression step (CP), in which a third load (F3), that is not smaller than the previous loads (F1,F2), is applied to the material, and a final ejecting step in which the tablet is discharged from the opening (2).

Abstract: A method for continuously producing panels (7) of lignocellulose-containing particles (2). According to the invention, binder is continuously applied to the particles (2) which are continuously shaped to form a mat (4). The mat (4) is continuously precompressed and at the same time continuously preheated by the effect of a high-frequency high-voltage field. The mat (4), which is guided in a plane, is compressed to form the panels (7) under the effect of further heat.

Abstract: Expanded or foamed plastic material is fed into a hopper containing a first auger having a cutting function. The first auger is driven by an electric motor and cuts the plastic material into pieces which are discharged from the hopper into a vertical chamber. The vertical chamber contains a second auger driven by an electric motor. The pieces of plastic material are compressed by the second auger and delivered into a chamber which serves as the inlet end of a horizontal friction chute. The plastic material in the chamber is compressed by a hydraulic ram which forces the compressed plastic material along the friction chute.

Abstract: A pressurized feed shoe for delivering particulate materials to fill a die cavity is provided. The feed shoe includes a feed shoe body comprising a vessel for receiving a quantity of particulate material. The feed shoe body has at least one bottom egress opening for registering with the die cavity and a top ingress opening for receiving particulate material. A pressure generator for generating supra-atmospheric pressures within the vessel and the die cavity is also provided. The pressure generator communicates with the vessel via a conduit sealingly engaged thereto. A shuttle selectively moves the feed shoe body to and from a position whereby the bottom egress opening registers with the die cavity.

Abstract: A high density fiber product is made from natural lignin containing plant fibers. Plant fibers ranging in size below about 3000 microns in diameter are used. Binding agents and other additives may be mixed with the fibers to enhance product or process performance. The plant fibers or mixture of fibers and additives are heated to between about 50 degrees C. to about 140 degrees C. The heated fibers are compressed in a mold to an average density of about 50 pounds per cubic foot to about 100 pounds per cubic foot. Compression pressures of about 500 psi to about 2500 psi are used to achieve product densities within this range. The compressed fibers are cured under these temperature and pressure conditions. After the curing time has elapsed, the compressed fiber product is released from the mold and the mold may be reused. A high density product made from small plant fibers is provided.

Abstract: As a paper-made stampable sheet having a high rigidity and, if necessary, improved adhesiveness and non-permeability and a light weight stampable sheet shaped body made from this sheet and a method of producing the same, there are proposed a paper-made stampable sheet obtained by paper-making a mixture of thermoplastic resin and reinforcing fibers to obtain a sheet-like web, piling a thermoplastic resin film of a single layer or multi layer or an organic fiber nonwoven fabric having at least one excellent property selected from rigidity, non-permeability and adhesiveness on at least one-side surface of the sheet-like web in accordance with use purpose, compressing them under heating above a melting point of the thermoplastic resin constituting the web, cooling and solidifying at a compressed state as well as a light weight stampable sheet shaped body made from this sheet and a method of producing the same.

Abstract: A method for forming products includes the step of forming an incompletely consolidated stock from a powder. A substantially completely consolidated stock is then formed from the incompletely consolidated stock. Finally, the substantially completely consolidated stock is machined to form the final product. The method of the present invention also includes a method for recycling waste thermoplastic materials into useful articles. The method of the present invention also includes a method for processing thermoplastics, thermosets and elastomers. As part of the above, an elastomeric mold may be used, which may be formed from a mandrel.

Abstract: A continuously operating press having a plurality of press columns each including upper and lower press heating plates being separated by an adjustable press nip, a piston-cylinder arrangement connected to both the upper and lower press heating plates and a spring supporting the press column achieves an increased longitudinal deformation gradient of the press heating plates. The press achieves the increased longitudinal deformation gradient by deforming the upper and lower press heating plates together.

Abstract: A molded core component includes a center plane piece and at least one wall extending from the center plane piece. The wall preferably includes contours which form a multiplicity of pods, cells, or protrusions integral with the center plane piece. The core component is preferably inserted into the space or void formed by two prefabricated molded fiberboard doorskins, wherein the center plane piece lies substantially in the central plane of the door product. Processes for the production of a molded core component and a composite door product are also disclosed.

Abstract: A method for manufacturing a container from husk includes the steps of comminuting the husk into powder form, mixing the powder with an edible adhesive, with the introduction of steam, to form a paste, forming a blank from the paste, shaping the blank into a primary semi-product, re-shaping the primary semi-product to force the paste to flow and fill into cracks formed on the primary semi-product during the shaping step to form a secondary semi-product, drying the secondary semi-product and applying a surface coating to the dried product and then drying the surface coating.

Abstract: The present invention relates to a packing method in which a material (p) is fed into a space comprising an opening (4c) for feeding the material and a space (4d) to be packed with said material, and said space is subjected to air tapping, that is, switching of air-pressure from a low air-pressure state to a high air-pressure state alternately, thereby packing the material into the space (4d) at a high packing-density. The use of air tapping for packing a material into a space makes the packing-density of the material uniform.

Abstract: An expanded, memory molded, increased density, highly impact-resistant polystyrene construct, and method of making the construct. The construct is formed by molding pre-expanded non-equilibrated polystyrene beads to a first volume, cooling rapidly, and then compression molding to a final, smaller volume. The resultant constructs have increased density, and high impact strength without increase in embrittlement. Also, the construct has "memory" in the sense that it returns substantially to its original shape after impact.

Abstract: This invention relates to a device to compact parts with an undercut out of powder metal, including a pair of dies linearly moveable relative to one another and then phased, and an associated linearly displaceable pair of punches to produce said parts with said undercut.

Abstract: A method for forming biocompatible components from a stock of substantially completely consolidated material. The method includes the step of forming an incompletely consolidated stock from a powder. The substantially completely consolidated stock is then formed from the incompletely consolidated stock. Finally, the substantially completely consolidated stock is then machined to form the biocompatible component.

Abstract: A composite and pressureless sintering process for making whisker-reinforced alumina composites using about 1 to about 7.5 wt. % of a nitride modifier consisting essentially of silicon nitride, aluminum nitride, or mixtures thereof that produces a sintered body having a density of greater than 95% theoretical.

Abstract: A method and apparatus provides for the formation of compression dosage units from tableting feedstock. A feedstock dossiter is provided including an open ended chamber for insertion into a reservoir containing the tableting feedstock. The dossiter includes a movable die punch which is movable within the chamber between at least two positions. A first position away from the open end of the chamber provides for the collection of a preselected volume of tableting feedstock from the reservoir. The die punch is movable to a second position which effects formation of the tablet within the accumulation chamber. The dossiter shown herein may be used in combination with a fixed die punch to form the tablet.

Abstract: An inorganic constructional board for use as wall backing material or the like comprises a middle layer portion (1a) formed mainly of inorganic foamed material with an adequate quantity of fibrous material and binder added thereto, and outer layer portions (1b) placed on both surfaces of the middle layer portion (1a), the outer layer portion being formed mainly of mineral fiber material and inorganic powder material with binder added thereto. The middle layer portion (1a) has a specific gravity of less than 0.4, and the outer layer portions (1b) have a specific gravity of more than 0.7. Therefore, the board is more lightweight than a plaster board and has performance characteristics equivalent to or better than those of the plaster board.

Abstract: The present invention is directed to producing a smooth hard coating on a wood substrate. A layer of a foamed polymerized latex emulsion is applied on the surface of a wood substrate, such as an oriented strand board. The layer is dried, crushed and then cured to form the coating. If desired the cured coating may be provided with a post cure heat treatment to improve its hardness. The present invention is also directed to applying and drying the layer of the foamed polymerized latex emulsion on a mat of wood fibers or flakes and then crushing and curing the crushed layer and the mat into a hardboard having a smooth hard coating. The coating of the present invention is useful as a sealer coat on a wood substrate. By adding pigment to polymerized emulsion, the sealer coat can be used to provide a finish coat on the wood substrate.

Abstract: A densified titanium diboride based ceramic composition is provided having W and Co therein and a fine grain size. The composition has particular usefulness as a cutting tool for the machining of titanium based alloys at high speeds.

Abstract: Process for the production of a homogenous polymeric monolith wherein an assembly of oriented thermoplastic polymer fibres is maintained under a contact pressure sufficient to ensure intimate contact at an elevated temperature high enough to melt a proportion of the polymer. The assembly is subsequently compressed at a compaction pressure higher than the contact pressure while still being maintained at the elevated temperature. The resulting polymeric products are useful, for example as orthodontic brackets, bone prostheses and in body armor.

Abstract: It is an object of the present invention to realize a method and an apparatus for efficiently mass-producing tablets of high mechanical strength, accuracy and quality which are so excellent in solubility and collapsibility that they can be easily taken by persons of advanced ages and infants. By using a turn table and endless belt means to which a number of dies are connected, a part of which turn table contacts with the endless belt means, the turn table and the endless belt means being adapted to relatively move with respect to each other, receptacles are formed by pressing plastic polymer film in mold cavities of the dies. Moist powder supplied from a hopper into filling holes of the turn table is pressurizingly filled in the receptacles by means of a filling and pressurizing device in the region where the turn table is laid above the endless belt means.

Abstract: A process for compacting foundry molding material is proposed, the molding material being introduced into a molding device with a pattern plate with a pattern frame and a molding and filing frame mounted on it, by means of a compressed gas, the compressed gas being used at least for precompaction, the pressure surge used for the precompaction being released into the molding floor with a low, then a higher pressure gradient.

Abstract: The invention provides a method and apparatus for manufacturing a liquid container having an enclosed space within an inner wall of the liquid container, the enclosed space filled with a plurality of porous members. The plurality of porous members include a plurality of inner porous members and a plurality of outer porous members. The method includes the step of packing the porous members into the enclosed space so that the inner porous members only contact and press against other inner porous members and/or outer porous members, and the outer porous members contact and press against the inner porous members and the inner wall of the liquid container. The method also comprises a step of compressing the porous members. The apparatus has compressing means for compressing the porous members and packing means for packing the porous members into the liquid container.

Abstract: A molded wood composite article man-made from wood fibers or wood particles on at least an upper, molded surface of the article, and a method of manufacturing the article to include a relatively uniform density, detailed design contours and textured aesthetics on one or more molded depression-interior inclined surfaces, while preventing embrittlement, softness and blistering of the article along the depression-interior inclined surfaces. These attributes are achieved by molding one or more depressions into an initially planar layer of cellulosic material, wherein the molded depressions have one or more inclined walls that have upper surfaces, along essentially an entire inclined span, that include detailed design contours, including adjacent curved and planar portions, e.g., bead and cove.

Abstract: A metal shavings and chips compactor for extruding oil from metal chips and shavings and compacting the metal into easily transportable pellets. A compactor cylinder contains a piston and has an opening through which an auger feeds metal chips and shavings. A gate closes an end of the cylinder. A first hydraulic drive drives the piston under low pressure to close the opening and apply a first compacting pressure on the metal to form a loosely compacted pellet in the cylinder. High pressure then operates the piston to form a compact metal pellet substantially void of interstices. A second hydraulic drive opens the gate; the piston is operated at low pressure to discharge the compact metal pellet from the chamber and oil is collected below the cylinder. The compacting pressures are achieved through mechanical advantages provided by the size of the piston to that of the first hydraulic drive.

Abstract: A method of manufacturing a three-dimensional fabric of the type which may be used in absorbent garments, dressings or the like involves the use of an apertured collector element which has a predetermined three-dimensional shape. The method involves positioning material adjacent to one side of the apertured collector element and developing a pressure differential between the one side of the apertured collector element and a second, opposite side to force the fabric material against the apertured collector element. The material, which has conformed to the shape of the collector element, is then solidified into its intended three-dimensional shape.

Abstract: Production of plasterboard includes spreading of a mixture formed of gyps fibers and water onto a continuously moving belt to form a spread layer subsequently precompressed to 110% to 180% of a final board thickness and successively wetted from both sides and thereafter compressing the wetted layer to the final board thickness.

Abstract: Expanded or foamed plastic material, such as expanded polystyrene, is fed into a hopper containing an auger which carries blades for cutting the plastic material into pieces and for feeding it into a chamber containing a vertically reciprocable piston and a horizontally reciprocable piston. The two pistons operate sequentially to effect compression of the plastic material and to feed the compressed material into the entry end of a horizontal chute. A hydraulically operated main ram is movable along the chute to effect additional compression of the plastic material and to displace it along the chute for discharge.

Abstract: An apparatus for forming a generally cylindrical two-layer, vertically-compressed tablet having a longitudinal axis longer than its diameter is provided in which a generally cylindrical die cavity is provided on a die table with the longitudinal axis of the die cavity being vertically disposed. An upper punch provided above the die cavity rides on an upper cam assembly which controls the movement of the upper punch to and from the die cavity. A lower punch provided below the die cavity rides on a lower cam assembly which raises and lowers the lower punch relative to the die cavity. In operation, the lower punch is positioned and a first powder is added in a metered amount to the die cavity. The upper punch then tamps down the first powder within the die cavity. The lower punch is positioned to receive a metered amount of a second powder in the die cavity above the first powder.

Abstract: In a method and apparatus for making highly densified compression sheets from thermoplastic polymeric compounds preferably together with reinforcement fiber mats in a continuous fashion in a double-band press in which the compound material is heated and compressed between two compression bands which extend between reversing inlet and outlet drums and define between adjacent sections a wedge-shaped precompression zone adjacent the inlet drums wherein the compound material is increasingly compressed and also heated and a final compression zone adjacent the precompression zone, wherein the compound is heated under pressure such that the thermoplastic melts and fully wets any fibers in the sheet and an end compression zone in which the sheet is cooled which the pressure is maintained and the compound material is retained in the space between the compression bands by seal bands extending along the side edges of the compression bands and maintained in sealing engagement therewith.

Abstract: Moldings of ultra high molecular weight polyethylene powder are produced by heating the polymer powder at 160.degree. to 280.degree. C. in a mold without applying pressure or at a pressure of up to 0.5 MPa, and then cooling it to room temperature at a pressure of from 4 to 20 MPa.

Abstract: A low amplitude wave-board panel having improved bending strength and bending stiffness properties is provided. More specifically, the amplitude of the waves is substantially equal to, or less than half the thickness of said board. Preferably, the wave amplitude ranges from between 1/8" to about 1".

Abstract: An apparatus for extruding a powdered material forms an elongated pellet. The extrusion apparatus includes a connection mechanism arranged between the inlet and the constriction passages for continuously connecting two successively charged portions of the powdered material when the powdered material is repeatedly charged. By this mechanism, the formerly charged and semicompacted portion of the powdered material and the border surface upon the subsequent portion are broken, either by a core piece or a modified die cavity, whereby the portions of the powdered material are merged with each other before the constriction.

Abstract: A method for forming a nozzle employed in continuous casting is provided in which powder refractory materials are pressed with low hydrostatic pressure to produce preforms for an edge portion, an inner hole portion, and a powder line portion, these preforms are combined one after another in a rubber mold employing a mandrel while filling the rubber mold with a powdered refractory material for a body portion of the nozzle, and then a nozzle configuration is formed by pressing the rubber mold with a higher hydrostatic pressure than that used to produce the preforms.

Abstract: The invention provides an apparatus for compressively molding cushioning material using a quadrangular cylindrical molding box having an end side closed by a receiver mold, whereas the other end of said molding box receives supply of dry raw material consisting of fiberized paper or pulp by a volume corresponding to several times the actual volume of a molded body. A compressive mold inserted from the other end of the molding box is shifted to one-end side of the molding box to compress supplied raw material between a receiver mold. Simultaneously, a core member is retreated to a predetermined position of said one-end side in association with the shifting movement of the compressive mold. As a result, the core portion having thin thickness and the interior of the core member can securely be compressed and molded with even density.

Abstract: A method for molding shaped products from particles of vegetable origin which have a size of 0.002 to 10 mm at a moisture content of 4 to 15%. The method includes the steps of mixing a filler containing particles of vegetable origin and a binder which is obtained from hemicelluloses released from particles of vegetable origin upon molding. The briquettes are formed from the resultant mixture with an axial passageway then packed and transferred to a molding zone where a continuous shaped blank is obtained by joining each successive packed briquette to the preceding one under a specific pressure of 2 to 50 MPa and a temperature in the range of 160.degree. to 350.degree. C. A counterpressure equal to at least the molding pressure is generated as each successive packed briquette is joined at the molded end of the continuous molded blank. Then products of required length are cut from the resultant continuous shaped blank. An apparatus for carrying out the method includes a chamber (4) for molding the briquettes.

Abstract: A method of manufacturing containers from husks, which includes the steps of:(a) crushing husks into powder form;(b) mixing the powder with edible glue and steam to form a paste material;(c) rolling the paste material into a strip;(d) pressing the strip into containers with desired configuration; and(e) drying said containers.

Abstract: A method of producing high modulus and high strength products of polyethylene and other thermoplastic polymers by swelling with a suitable solvent a melt crystallized, or compacted powder morphology to form a pseudo-gel, drying the pseudo-gel, compressing it, and drawing it. The optimum process involves swelling the initial morphology in the form of a tape/ribbon/rod/monofilament/sheet/tube in a non-volatile solvent at temperatures near the polymer crystalline melting point, cooling the morphology under controlled conditions, lightly compressing it to remove the non-volatile solvent, extracting the non-volatile solvent by volatile solvent, removing the volatile solvent by evaporation or vacuum, compressing the morphology between rolls, and then stretching it at temperatures below the crystalline melting point of the polymer to obtain tapes, ribbons, monofilaments, sheets or tubes with improved mechanical properties.

Abstract: A method of carrying preforms of frictional material, in which a preform 2 of a frictional material is carried so as to be put into a heat middle mold 8b of a heat mold 8 after the frictional material is preformed with a preforming mold 1, the preforming upper mold 1a is moved down so that the preform 2 held in a preforming middle mold 1b is pushed from above into a through storage hole 4a of a carrier 4, and the heat upper mold 8a is moved down after this carrier 4 is carried to above the heat middle mold 8b so that the preform 2 is pushed into the heat middle mold 8b from the lower portion of the storage hole 4a of the carrier 4.

Abstract: A metal shavings and chips compactor for extruding oil from metal chips and shavings and compacting the metal into easily transportable pellets. A compactor cylinder contains a piston and has an opening through which an auger feeds metal chips and shavings. A gate closes an end of the cylinder. A first hydraulic drive drives the piston under low pressure to close the opening and apply a first compacting pressure on the metal to form a loosely compacted pellet in the cylinder. High pressure then operates the piston to form a compact metal pellet substantially void of interstices. A second hydraulic drive opens the gate; the piston is operated at low pressure to discharge the compact metal pellet from the chamber and oil is collected below the cylinder. The compacting pressures are achieved through mechanical advantages provided by the size of the piston to that of the first hydraulic drive.

Abstract: In a process for manufacturing an interior fitted part for motor vehicles, such as an inside roof lining for automobiles, a staple-fiber formed fabric of a drawn polyethylene terephthalate matrix component and of a binding component is subjected at least once during the process to an annealing process, which increases the thermal stability of the fitted part. Also disclosed is a fitted part manufactured by this method.

Abstract: A highly absorbent and flexible calendered and perf-embossed cellulosic pulp fluff sheet for use in disposable absorbent products such as sanitary napkins, wound dressings, bandages, incontinence pads, disposable diapers and the like. The invention also extends to a method for manufacturing the highly absorbent and flexible pulp fluff sheet and its method of use in disposable absorbent products.

Abstract: Ecologically safe constructional materials, and particularly large-sized constructional structures such as wall plates can be economically produced. Wood or another vegetable material ground to the particle size of not more than 2.times.10.sup.-3 m, dried to 9-11% moisture content, heated by heating the press-mold to the 200.degree. to 220.degree. C. temperature and adding ground material heated at least 120.degree. C., and loaded it into the press-mold for 1 to 1.5 min. per 1.times.10.sup.-3 m of produced pressed material. After that, pressing is done in a hermeticly sealed press-mold at this temperature at a pressure of not less than 30.0 MPa with exposure to this pressure for 1 to 1.5 min. per each 1.times.10.sup.-3 m of produced pressed material followed by cooling of press-mold without depressurization at full pressure.

Abstract: Method for forming polyvinyl alcohol (PVA) into surgical elements include forming a mixture of PVA and water into a film by vacuum pressing with a first force, heating, applying a second force two to two hundred times the firs force, drying the film to remove water to a content of less than about 10% by weight based on the weight of the film, and molding the film into a desired shape.

Abstract: The object of the invention is to provide a ceramic tile which is rectangular in shape and has an opening near one of its ends. The corners have grooves, while at the other end, it is cut off to form a skirt. The tile is fabricated by means of moulding ceramic stoneware in two pressings. A step is created around the opening during the first pressing, which descends and runs peripherally all along the edge of the tile. The tile has grooves on its parallel sides which form the casing for the retention heads, from which the tiles hang when they are placed on the roof. The entire piece is shaped in the course of the second pressing which maintains the descending steps of the grooves and forms in a hidden side of the part an orthogonal striation which is above the step and the grooves, whose length defines the maximum and minimum overlapping of the tile. The outer side of the tile and the borders are glazed with a synterized enamel.

Abstract: Process of making building block members by mixing natural latex with shredded vehicle tires to form a mixture, placing the mixture in a mold, applying pressure to compress the mixture, and maintaining pressure for a time period during which the latex hardens and cures.

Abstract: An improved method and apparatus for dry forming adhesive coated wood fibers in an airstream in a particular mold apparatus. The invention includes a particular sequence of steps and related apparatus, and permits the manufacturer of a mat of differing cross-sectional shapes but of uniform density. The invention includes the advantageous steps of final curing of the mat off of the main molding apparatus, thus achieving efficiencies in use.

Abstract: The present invention comprises an improved method of controlling resistivity in a process for consolidating particular materials or combinations of such materials into shaped products of very low porosity. High compaction pressures are applied at temperatures in the range of sintering temperature of the materials being consolidated to achieve essentially complete densification at extremely rapid processing rates. Electrothermal heating of a medium having controlled resistivity is utilized to accomplish these results. Various difficult materials, such as silicon carbide, boron carbide and other very high melting point materials, may be densified by these techniques.

Abstract: Method and apparatus to form grids of open cells from fibers, especially wood fibers and fibers from waste paper and mixed waste materials. The invention utilizes a screen carrying a plurality of elastomeric pads of predetermined sizes arranged thereon in predetermined spaced relation to each other. The fiber is deposited between the pads but not above the pads. The deposited fibers and the pads are compressed normal to the screen, which causes the fiber in the spaces between the pads to be consolidated both normal and parallel to the screen, resulting in a open grid having cells of the shape of the pads. Numerous variations are provided including several continuous production embodiments. The invention uses state of the art technology for virtually all aspects.