Abstract: A process for reclaiming residuals produced from the manufacture of decorative high pressure laminates (HPLs), and composite materials obtained by the process. Such residuals which include cellulose impregnated with thermosetting resins which are partially condensed, are ground to a predetermined particle size and mixed with a melted mass of thermoplastic resin under controlled pressure and temperature conditions. The mixing time is sufficiently long for completion of the reaction during which physical and chemical interactions occur between the partially polycondensed thermosetting resin and the thermoplastic resin. The material so produced can be converted into granules for subsequent injection molding. There is provided an effective solution to pollution problems and excessive expense problems associated with the disposal of scraps and residuals from the manufacture of decorative HPLs.

Abstract: A method of making a catheter is provided. The catheter has an atraumatic portion at the distal end of a catheter having the stiffness and torque resistance required of a catheter such as that suitable for angiographic uses, typically in French sizes on the order of about 2 to about 8. The atraumatic tip portion has a generally co-axially layered structure. An inner layer is made of soft atraumatic polymer, and an outer layer is made of a polymer to impart needed stiffness and torque properties to the catheter. In the preferred embodiment, a portion of the distal tip material of the harder outer layer is removed, thereby exposing the inner, atraumatic material for initial engagement with internal body passageways.

Abstract: A method for providing an inlay on a substrate includes providing a recess in the substrate, preheating the substrate to a temperature of approximately 150.degree. F., mixing an epoxy resin with an epoxy hardener, and placing the mixture into the recess so that the mixture hardens in the recess and the heat stored in the substrate reduces the viscosity of the mixture, to aid in the removal of bubbles.

Abstract: A process for using shredded scrap or virgin fiber glass in combination with starch, water and other components to make ceiling tiles. The tiles are made by initially preparing a mixture of water, starch, boric acid and fire clay. That initial mixture is then heated to form a gel. Fiber glass is then added to the gel to form a pulp. The pulp is fed into trays to form slabs. The slabs are dried and finished into tiles.

Abstract: The present invention relates to a method of manufacturing low-edge V-belts including the steps of: forming an unvulcanized belt annular body inside out by winding respective components constituting the elongated portion, tension-resistant portion, and compressed portion of the belt in laminated form on the circumferential surface of a forming drum; vulcanizing the unvulcanized belt annular body to obtain a vulcanized annular body; revolving the vulcanized annular body by winding on a pair consisting of a drive drum and an idle drum thereby to grind V-shaped grooves on the surface of the vulcanized annular body with a grinding wheel which is a group of grindstones whose cross-section is V-shaped being in pressure contact with the drive or idle drum; causing projections arranged on a positioning member which is capable of gradually increasing the depth of engagement to engage with the V-shaped grooves; and cutting the vulcanized annular body thus processed thereafter.

Abstract: A method of producing an article of ceramic material for replacement of a lost substance or tissue in the human body includes making a model having a contour of the article to be produced and positioning in a copying machine the model and a blank from which a tool is to be made. The contour of the model is sensed by sensing devices and transmitted to the blank. The model contour is linearly enlarged by use of mechanical procedures so as to define a linearly enlarged contour on the blank. After the enlarged contour has been defined on the blank, a tool is formed from the blank which has a contour corresponding to the linearly enlarged contour. The ceramic starting material is applied and compacted over the contour of the tool to produce an article with a corresponding enlarged contour.

Abstract: Slip-cast ceramic component having an internal chamfer which is optionally interrupted by an internally projecting area, obtainable by providing a slip cast blank of the ceramic component with uniform thickness and desired internal configuration wherein the volume corresponding to the internal chamfer is outwardly disposed and which is removed by external machining to arrive at the geometry of the ceramic component. The component is useful, inter alia, as a spacer ring which serves for the positioning of honeycomb-shaped catalyst blocks in exhaust gas lines.

Abstract: A method of faithfully reproducing a multicolor image having three-dimensional texture utilizes a photomechanically reproduced copy of the image on a carrier substrate which is suitable for embossing and a matrix providing the three-dimensional textured characteristics of the image is used to electrolytically form a female embossing die corresponding to the shape of the matrix whereupon a complemental male embossing die is made by which the carrier may be squeezed between the male and female dies to produce a highly accurate copy exhibiting the coloration and fine detail of the image texture.

Abstract: A process for forming a poured slab, preferably of concrete, which has different colored portions. The process includes (a) pouring a wet concrete mixture of cement particles, sand particles and gravel particles into a horizontal mold cavity having a stepped mold bottom surface, (b) curing the mixture to produce a slab with a roughly horizontal rear surface and a stepped front surface corresponding to the mould bottom surface, and (c) mechanically removing the cured mixture between a cut plane generally parallel the rear surface through the slab and the front surface. The resultant slab has different portions with different coloration and appearance due to the cut plane passing through portions of the concrete having different proportions of cement, sand and gravel particles.

Abstract: A method of manufacturing a randomly patterned floor covering having contrastingly-colored zones from a preform of rubber in which the preform is cut in pieces, each of which are molded into a blank having projections extending from a top side of the blank in relief-like fashion, solidified by vulcanization and then machined by cutting only in the region of the projections. The rubber forming the contrastingly-colored zones is mixed with contrastingly-colored particles in an amount of at least ten percent by weight. These particles are substantially free of flat surfaces and are in, at least, an advanced state of vulcanization. The particles located in the projections extending from the top side of the blank are exposed during the cutting step.

Abstract: The invention is directed to a method for manufacturing heat-activatable articles from a synthetic thermoplastic material on which a shape memory is impressed by introducing molecular orientations and molecular structures. These articles, after the impressing of the shape memory, are subsequently subject to a further change in shape, at least in sub-regions thereof. The shape memory is influenced by this further change in shape.

Abstract: A catheter assembly includes a tubing portion and a needle portion, at least one of which is a thermoplastic liquid crystalline polymer. The tubing and needle may be integral or unitary. The invention includes a method to make the assembly in which a melt of the liquid crystalline polymer is shear thinned by passing through an orifice such as an extrusion die to make tubing. The shear thinned melt may be directed into a mold having a point to make a liquid crystalline needle.

Abstract: A honeycomb structure as a substrate for at least one catalyst includes a ridge arranged on at least one part of an outer surface of the honeycomb structure and extending in a direction of through-apertures thereof, and at least one notch formed in the at least one ridge. A method of producing the honeycomb structure includes the steps of extruding a ceramic batch to form a honeycomb structure having a ridge in the form of a shape extending at least one part of the honeycomb structure in cross-section, and removing at least at one part of the ridge in directions of through-apertures of the honeycomb structure to form a notch. With the arrangement of the honeycomb structure, it is possible to prevent any shifting of the honeycomb structure in directions of through-apertures of the structure and rotation of the structure about its axis relative to a converter can without closing any ends of through-apertures.

Abstract: A method of forming elongated trim strips having a central body section of a desired predetermined constant cross-sectional configuration with an integral contoured end joined to the central body section including by using a length of extruded thermoplastic material having the desired predetermined constant cross-sectional configuration with a show face surface and a back mounting surface. Material is removed from the back side of the extruded length to provide an end portion on the strip which tapers in thickness from the original extruded thickness to a minimum thickness at the end of the length. Thereafter, a rigid and relatively flat backing strip is provided and the extruded length is deflected to bring the back side of the tapered thickness end portion of the length into engagement with the backing strip. The back side of the extruded length including the tapered thickness end portion is then bonded to the backing strip which maintains the strip in a relatively flat condition.

Abstract: Reduction of index undulation errors associated with helical gear teeth caused by the grinding process during the manufacture of the gears without degrading other gear accuracies (e.g. profile, tooth spacing) below levels required for precision (AGMA16 or DIN1) gears. A mold of the space between several gear teeth is obtained, with the mold having a length equal to or greater than the wavelength of the undulation error to be reduced. A microfinishing film is affixed to the mold and the mold is placed relative to a gear tooth so that the microfinishing film rests against a tooth surface having the undulation error. The grit size of the microfinishing film is such as to remove approximately 2 to 3 millionths of gear material with each pass through the teeth by the mold. Multiple passes are made by hand until the undulation error is reduced to an acceptable value. During the process the microfinishing film is replaced after approximately 3 or 4 passes and the process is repeated for each tooth of the gear.

Abstract: A process for producing an optical recording medium, including the steps of: melt-extruding a resin to form a resin sheet; passing the resin sheet under pressure between a first roller having a predetermined unevenness pattern and a second roller disposed opposite thereto before the resin sheet is hardened, thereby to transfer the unevenness pattern to a surface of the resin sheet; and forming a recording layer having an organic coloring matter on the surface of the resin sheet provided with the unevenness pattern; wherein the steps are conducted while the resin sheet is moved.

Abstract: A family of composite materials consisting of a mineral filler and a synthetic polymer are provided which are characterized by properties similar to natural ivory. The ivory-like composite material contains about 25 to about 75 percent by weight of the mineral filler, preferably a calcium phosphate. In addition, the composite material contains about 75 to about 25 percent by weight of the polyamino acid, preferably an .alpha.-amino acid such as poly(gamma-methyl L-glutamate). The composite material is formed using in situ polymerization techniques, thereby ensuring intimate and homogeneous blending of the mineral and polymer phases as well as facile preparation at ambient temperatures. In addition, the ivory-like composite material is molded using an isostatic compression molding technique. The composite material may be molded to form virtually any desired shape for decorative or practical purposes, or for subsequent carving.

Abstract: A process for the production and treatment of concrete blocks, which are produced in molds filled with concrete and are imprinted on their surface by means of dies that exhibit recesses or protrusions. Subsequently thereto, the surface of the concrete blocks is roughened or formed or textured and freed of loose particles by brushes, in particular strip brushes and roller brushes.

Abstract: A process for modifying the surface of a hard engineering ceramic material by applying a point or line load to the surface of the hard engineering ceramic material by a second material such as to cause plastic deformation of the hard engineering ceramic material. The second material can be repeatedly traversed across the surface of the hard engineering ceramic material. The process is advantageously applied to a first engineering component fabricated from the hard engineering ceramic material and a second engineering component fabricated from the second material. The second material may also be a hard engineering ceramic material, and may be of the same hardness as the hard engineering ceramic material to be treated. The first and second components can be used in a tribological application and between them define a point or line contact such that in use the second engineering component reshapes the surface of the first engineering component.

Abstract: A method for repairing voids in a finished urethane foam product having a typical backing insert or retainer wall, the method including the steps of forming a hole through the retainer wall adjacent the void; inserting a small elastomeric sheath through the hole into the void; injecting a urethane or silicone elastomer into the sheath to fill same to conform to the void; and sealing off the hole with a suitable plug which may be sanded flush with the retainer wall outer surface.

Abstract: The steps of surfacing a screen organization to include an initial mechanical cleaning of the screen organization by tools such as a sandblasting type member to direct abrasive particulates against the screen to effect a roughened surface on the screen. Subsequently, a coating of glue is applied to a bottom surface of the screen, whereupon the screen is positioned within a recessed cavity of a container. Parallelepiped block members are positioned within the openings defined by the screen organization, whereupon subsequently a fluid polymeric, such as polyurethane, is directed within the container, whereupon subsequent curing of the polyurethane permits removal of the newly surfaced screen organization.

Abstract: In accordance with the present invention, there is provided a process for producing polytetrafluoroethylene (PTFE) resin molded articles, wherein an unsintered PTFE resin paste extrusion molded article as extruded from an extrusion machine and inserted into a sintering mold having an inside diameter slightly larger than an outside diameter of said unsintered PTFE resin molded article is sintered at a temperature higher than a melting point of the PTFE resin. In another aspect of the invention, PTFE resin molded articles are produced by a process wherein an unsintered PTFE resin paste extrusion molded article immediately after being extruded from an extrusion machine is sized by means of a sizing die, and the unsintered PTFE molded article thus sized is inserted into a sintering mold having an inside diameter slightly larger than an outside diameter of said unsintered molded article, followed by sintering at a temperature higher than a melting point of the PTFE resin.

Abstract: In connection with a device for casting lead grids for electric battery plates, a highly porous ceramic mold lining, preferably of zirconium oxide, is prepared by flame-spraying. Such a lining can include a thin surface coating on a profiled, basic metallic mold or a separately prepared insert plate which is retained to a metallic mold molder. The ceramic surface coating may be accurately formed in place, or may be formed as an over-spray which is then reduced in thickess. Formation of the surface coating may be accomplished by placing masks on the basic metallic mold during the flame spraying, for those areas of the grid which tend to accumulate material, or by adjusting an initially coarse profile of the ceramic layer to the exact profile of the casting by a material-removing treatment.

Abstract: A process for consistently making ceiling tiles having uniform density and surface texture includes using a conveyor along which trays are moved in a generally horizontal direction. A feeder box is used to deposit pulp in the trays, the pulp being comprised of a mixture of water, starch, fibrous material, and other ingredients. The feeder box through which pulp is deposited in the trays is of a special design, and includes a sloping front edge which creates a negative rake angle with respect to layers produced by the system. The lower front edge of the feeder box includes a surface having a compound curvature. Ceiling tiles are produced by the process having improved uniformity of density and surface texture.

Abstract: A cost effective method for realistically simulating a wood grain appearance on a door skin used to form a panel door includes compression molding a fiber reinforced polyester door skin having an outer surface with "closed" areas dense with deep grains and "open" areas with a generally lesser concentration of deep grains, the surface further having a predetermined surface roughness. The outer surface also has shallow grains in trim areas that are steeply angled with respect to the substantially planar door skin. A mixture of artist's oil cut 1:1 with mineral spirits on a fluid ounce basis is then sprayed onto the outer surface after molding. After twenty minutes, the mixture is rubbed in, and the door skin is dried vertically in a forced air oven for one hour at about 120.degree. F.

Abstract: A method for making a compact for a densified cutting insert, an easily machinable material is cut to the desired form, a plastic molding material having specific properties is contacted with the shaped machinable material, hardened to form a mold, and the resulting mold is used to form a compact for a cutting insert having the desired configuration which compact may be subsequently densified.

Abstract: A method for degating an injection molded plastic article includes the steps of filling a mold cavity with a molten plastic, dwelling and cooling the mold subsequent to filling to effect gate seal. A first degating punch and a second punch are provided slidably inserted in holes in the mold which cross a gate in an axial direction, being the direction in which a movable mold half is opened and closed. The punches are vibrated at a high frequency after gate seal is completed in order to soften the solidified plastic in the gate. The punches are then displaced with respect to the gate when the plastic is softened in order to effect degating. In another method, a step of cutting the gate in the molded article by sliding the punches occurs during both dwelling after filling the mold with the molten plastic, and cooling subsequent to the completion of dwelling, and before gate seal is effected.

Abstract: An injection method for making a hole in an injection molded plastic article comprising the steps of filling a mold cavity with a molten plastic and cooling the mold to effect gate seal. A first hole-making punch and a second punch, which are slidably inserted in a bore provided in the mold coinciding with the hole to be made in the article in an axial direction in which a movable mold half is opened and closed, are vibrated with high frequency after gate seal is completed to soften the solidified plastic between the two punches. The punches are then displaced with respect to the bore when the plastic is softened to make the hole. A second injection method comprises the step of making the hole in the molded article by sliding the punches during both dwelling and cooling subsequent to the completion of dwelling after filling the mold with the molten plastic and before gate seal is effected.

Abstract: A process for making a carbon-carbon composite having a combination of high crystallinity, high strength, high modulus and high thermal and electrical conductivity. High-modulus/high-strength mesophase derived carbon fibers are woven into a suitable cloth. Layers of this easily graphitizable woven cloth are covered with petroleum or coal tar pitch and pressed at a temperature a few degrees above the softening point of the pitch to form a green laminated composite. The green composite is restrained in a suitable fixture and heated slowly to carbonize the pitch binder. The carbonized composite is then impregnated several times with pitch by covering the composite with hot pitch under pressure. The composites are given a heat treatment between each impregnation step to crack up the infiltrated carbon and allow additional pitch to enter the microstructure during the next impregnation cycle. The impregnated composites are then given a final heat treatment in the range 2500.degree. to 3000.degree. C.

Abstract: An optical simulator 10, shaped to be interchangeable with a complimentary connector 7 that intermates with an optical connector housing 6 having an optical emitter 4 and an optical detector 5, comprises an alignment fixture with connectors for intermating with the optical emitter 4 and the optical detector 5. Included is an optical fiber 11 formed in a loop and installed within the alignment fixture 12 with a first end face 15 of the loop 11 aligned with the emitter 4 and a second end face 16 of the loop 11 aligned with the detector 5 of the optical connector 6. The simulator 10 is a solid molded body of an electrically insulating material. The optical fiber formed in a loop 11 further comprises an optical fiber having a rigid thin coating of electroplated metal 14.

Abstract: The invention relates to a method of marking the surface of articles, more particularly but not exclusively with a view to obtaining distinctive signs on non-plane surfaces such as the surface of balls.

Abstract: A method of molding thermoplastic material into a collar for use on a drill string is disclosed. Initially a precursor is constructed by rolling a sheet of thermoplastic material, containing long reinforcement fibers, into a tubular "roll" and placing the roll in a generally cylindrical open mold so as to align longitudinal axes of the roll and the open mold. A cylindrical mold core, which mates with the open mold to form a mold cavity, has an end piece perpendicular to the cylindrical portion for closing the mold. The mold core is forced, with correct alignment, into the open mold using high pressure which closes the mold and causes the thermoplastic material, containing long reinforcement fibers, to take the required shape. The thus formed part is cooled and ejected from the mold for use as the precursor. Final steps include machining the ends of the precursor to produce the desired collar.

Abstract: A method for the fabrication of a heat transfer member for use with electronic or microwave systems is described. The thermal heat transfer member is a generally planar composite member in which elongated high thermal conductivity fibers are disposed within a matrix material. The method involves molding epoxy matrix material along with conductive graphite fibers and filler material in predetermined geometries. The molded member is then formed in a manner such that the fiber ends are cleanly exposed at the surface of the member in predetermined locations. Metal caps may be formed over the fiber ends to improve heat transfer. Heat is transferred into the member, along the commonly directed fibers, then out of the member at a heat output surface.

Abstract: A moderately resilient, energy-absorbing practice golf ball and a process for manufacturing same are disclosed, the ball having a dense metal core surrounded with a thick layer of resilient material. To this, a fabric cover able to carry marking powder is bound. The practice ball leaves powder marks at its points of impact, and has a substantially reduced velocity upon rebound. The process of manufacturing the practice ball includes the steps of binding dense metal shot or granules together with resilient adhesive to form a core, wrapping uncured rubber strips into a thick layer around the core, pressing the surface of the layer to make it spherical; pressing a layer of textile fabric into the surface of the uncured rubber, curing the ball with elevated temperature and pressure to fuse its layers together and abrading the ball's fabric surface to raise a powder-carrying nap.

Abstract: To automate the roughening of the peripheral surface of a shoe upper in the region to be soled, the application of adhesive along such surface and a final deburring operation, prior to injection molding the last supported shoe upper in the region of lateral side mold elements is measured at the peripheral curvature to determine a curved line of spacial coordinates and angles of curvature starting at a preselected null point, and the values are stored. Another last supported shoe upper is moved by a rotary turntable to be scanned at selected points along its periphery for comparing the selected points to the spacial coordinates and angles of curvature. Any deviation therefrom is adapted to a second preselected null point, after which the shoe upper is guided by a computer controlled robotic device along the curved line starting from the second null point.

Abstract: A method for welding together filled sintered polytetrafluoroethylene components. The ends of the components to be welded are carefully tapered to form reverse mated surfaces and then assembled in position to be welded. The actual welding step is carried out under heat and pressure followed by cooling under pressure. The process is particularly useful in the fabrication of very large gaskets or other very large planar objects.

Abstract: After a mortar layer is formed on the surface layer of placed concrete, an ultrasonic vibrator is caused to vibrate while being pressed against the mortar layer surface, and a thin surface layer is scraped off, obtaining a dense water-shielding layer. Mortar with a low water-cement ratio is spread onto the surface of the water-shielding layer, and adhesion between the mortar and the water-shielding layer is strengthened by using the ultrasonic vibrator. The pressing force of the ultrasonic vibrator is then increased to make the mortar and the water-shielding layer densely integrated together, thereby forming a hard concrete surface excelling in abrasion resistance.

Abstract: A process for applying a permanent filled engraved identification to the surface of an object such as a paving brick which is made of porous material.

Abstract: A process is described for producing filter elements which contain a cross-wound yarn as the filter material, wherein twisted yarn of fine individual fibers is roughened to enhance its filtering action. The yarn may be heat-resistant and the filter element may be used as a soot filter in the exhaust gas stream of an internal combustion engine. Before the yarn is wound up, fiber tufts are broken up by pulling the yarn under tension over a moving roughening surface, the direction of movement of the roughening surface differing by an angle alpha from the direction of movement of the yarn in the area of contact between the yarn and the roughening surface, and the angle alpha being selected in relation to the twist of the yarn, particularly so that the threads of the yarn in contact with the roughening surface are oriented transversely to the direction of movement of the roughening surface. The process produces a roughened yarn which provides the required high filter performance for a soot filter.

Abstract: Cylindrical carbon blanks are assembled into one or more upright stacks which are advanced stepwise in an upward direction in one or more upright tubes which insulate the column or columns from the surrounding atmosphere. The blanks in the upright tube or tubes are preheated by exchanging heat with an inert gas, such as pure argon, and the preheated blanks are thereupon conveyed along one or more horizontal path sections into the upper end of an additional tube wherein the blanks are heated to graphitizing temperature by a series of electrode pairs. The thus obtained graphite electrodes are cooled by inert gas which is thereupon admitted into the upright tube or tubes to preheat fresh carbon blanks.

Abstract: A method of forming a slush mold and a synthetic resin skin utilizing the slush mold. The method includes the steps of roughing a foamed synthetic resin surface to define a prototype having a plurality of irregularly spaced and irregularly sized recesses, forming a metal mold to have a molding surface accurately complementary to the prototype surface and molding a skin of synthetic resin against the molding surface of the metal mold. The recesses preferably have a cross section dimension in the range of approximately 170 to 500 microns and a depth in the range of approximately 8 to 133 microns. Narrower preferred ranges are disclosed. The surface preferably has a regular unbiased variance of less than approximately 300 microns and preferably less than 200 microns.

Abstract: A process for improving the slip properties of a ski sole that includes instantaneously compressing a high density polyethylene powder to soften the material and passing the softened material through a static mixer and a grid. The material is then shaped in an extruder and the extruded tape cooled by passing it between cooling plates prior to its being placed on a storage reel.

Abstract: The invention provides a working equipment for roughening the side of optical fiber having a hot stamper, a sheet having rough surface to be transferred, a cushion, and a cushion-mounted plate having a portion formed in stepwise or continuously curved or sloped form.

Abstract: A method for making multi-colored composite laminates comprises stacking a plurality of colored strips in a predetermined pattern and bonding the strips into a composite laminate by continuous bonding. The composite laminate is then rolled before being passed through a deep steel pattern roll which forms a raised pattern on its surface. Next, the laminate is passed through a skiving table where the raised pattern is skived off to expose the multi-colored pattern formed by the underlying layers. The laminate is than flat rolled to a finished dimension and may be reeled up into a cylindrical roll.

Abstract: An apparatus for scraping off burrs at resin outer layer of a golf ball. According to this method and apparatus, even if some errors exist in the diameter of golf balls of resin outer layer, only burrs can be scraped off automatically at high efficiency, without impairing the degree of true circle of golf balls and without generating deformation of golf balls.

Abstract: A method for producing concrete products provided with inlaid patterns includes (a) preparing a reusable mold provided with recessed patterns by applying ultra violet rays on the surface of an ultra-violet-ray setting resin plate, (b) preparing a waste mold provided with recessed patterns from the reusable mold, the waste mold being made of a soluble material which can be dissolved by water, solution or heat, (c) casting concrete into the waste mold and solidifying the concrete to provide a concrete block on the waste mold, (d) dissolving and removing the waste mold from the concrete block and providing recessed patterns on the surface of the concrete block, (e) filling a coloring material into the recessed patterns on the surface of the concrete block and solidifying the coloring material, and (f) grinding the surface of the concrete block to produce concrete products provided with inlaid patterns on the surface thereof.

Abstract: The invention relates to a method of the manufacture of dimensionally stable, liquid-impermeable, flexible press bands, particularly for wet presses of paper making machines. With known manufacturing methods for such press bands, the provision of a structured surface for liquid discharge on the outer surface of the press band, which faces the fibrous web or the felts, is achieved either by reversing the press band after removal from the casting mould so that the structured surface becomes the outer surface of the band while the smooth surface forms the inside thereof, or by grinding drainage ducts into the outer surface of the press band. But especially in the case of small band diameters, reversing of such cast press bands causes serious problems and entails considerable expenditure, wherein the risk of damage to the band cannot be excluded and grinding of the drainage ducts is just as expensive.

Abstract: There is proposed a process for the manufacture of wood fiber boards, wherein by far the largest part of the outer layers to be conventionally sanded away no longer consists of wood fibers but of wood dusts of a defined particle size, a material which is available as waste from other consolidations of wood raw materials. By employing the process of the invention, it also is possible to achieve an only small density drop towards the center of the board, so that this process is particularly suitable for the manufacture of medium density wood fiber boards with a weight of 600 to 950 kg/m.sup.3.

Abstract: Disclosed is a granular calcium hypochlorite composition having a calcium hypochlorite content of at least 55 wt. % and composed of particles having an ellipsoidal shape in section, wherein at least 50 wt. % of the ellipsoidal particles have a short diameter of 0.3-5 mm, a long diameter of 0.5-20 mm, and a long diameter/short diameter ratio larger than 1.5 but not larger than 5. This composition is prepared by a process wherein a wet calcium hypochlorite composition comprising at least 40 wt. % of calcium hypochlorite and 25-45 wt.% of water is extruded through a die having an orifice diameter of 0.3-5 mm; the extrudate is cut to a length of 0.5-20 mm so that the length/orifice diameter ratio is larger than 1.5 but not larger than 5 to form columnar shaped particles; the columnar shaped particles are subjected to rolling granulation; and the resulting granules are dried until the water content is reduced to 4-22 wt. %.

Abstract: A molding for attachment to a vehicle includes a core member having a plurality of longitudinally spaced clip members and apertures between the clip members. An outer layer is extruded about the core member. The core member is formed to a predetermined configuration and presents an outer surface having ridges corresponding to clip members and valleys corresponding to the apertures. A cover layer covers the outer layer to fill the valleys to form a smooth continuous planar outer surface.