Abstract: A method of engraving pre-sintered ceramic articles involves providing a source of laser energy for forming a polyester mask having a predetermined spiral pattern etched therein. To form the polyester mask, means are provided for computationally communicating a predetermined engraving pattern to the source of laser energy. Once the polyester mask is formed, it is overlaid onto the ceramic article forming a laminate and the laminate is bombarded with a hard alumina grit to form the spiral pattern in the ceramic article. After the ceramic article is engraved with the predetermined spiral pattern, the polyester mask is removed exposing an engraved ceramic article.

Abstract: An apparatus and method are disclosed for forming a sanitary napkin having a multi-segment core. Such a core is formed using a mold having a deposition cavity which is divided into cavity segments by at least one partition. Each partition can comprise a passageway for interconnecting adjacent cavity segments.

Abstract: The present invention is a method for producing solid halogenated hydantoin products using the process of melt extrusion. The form of the products which can be produced includes tablets, briquettes, pucks, dispensers, "designer" forms such as Christmas ornaments, pellets, and granules. The halogenated hydantoin compounds used in the forms contain methylethylhydantoin or an admixture of methylethylhydantoin and dimethylhydantoin. The halogenated hydantoin compositions used to make the forms can also include additives such as solubility modifiers, compaction aids, fillers, surfactants, dyes, fragrances, dispersants, lubricants, mold releases, detergent builders, corrosion inhibitors, chelants, stabilizers, biocides, bromide sources, or oxidizing halogen compositions. The present invention is also the product which is made via the melt extrusion method. The invention also is a method of obtaining an improved feedstock via melt extrusion and the improved feedstock product.

Abstract: A synthetic wood meal in which a thermoplastic resin material of 25 to 80 wt % is mixed with a cellulose crushed material of 20 to 75 wt % that lies in the moisture content of within 15 wt % and the mean particle diameter of 20 mesh or less, the mixed material is kneaded so as to be set to gel, and the kneaded material is cooled and pulverized and regulated to a size that lies in a particle diameter of 10 mm or less. Then, the synthetic wood meal as the cellulose crushed material is mixed in at the rate of 20 to 75 wt % to the resin material, the mixed material is kneaded by heating and squeezed by a screw or screws of an extruding die 78 in an extruder.

Abstract: The present invention relates to a process for the preparation of storage-stable granules essentially comprising a bleaching activator and an inorganic binder material, which comprises the process steps:a) mixing of a dry bleaching activator with a dry inorganic binder material,b) pressing of this mixture to give relatively large agglomerates andc) comminution of these agglomerates to the desired particle size.The invention furthermore relates to the use of the granules prepared by the processes in detergents, cleaning compositions, bleaching compositions and disinfectants.

Abstract: The present invention provides a method and mixture for use in forming strong light-weight aggregate and includes by weight about; 68% to 95% fly-ash, 2% to 10% hydrated lime, and 3% to 12% alkali hydroxide such as Sodium Hydroxide. While many types of fly-ash may be used, Type F or Type C fly-ash are preferred. The admix is mixed with water to form a slurry including water in a range of 10% to 25% by weight of the dry mixture and the slurry is then compacted. The compacted slurry is then cured such as by using a rotary kiln or by in situ open air curing. The cured slurry is then allowed to hydrolyzed to form a hard material which then may be crushed and optionally screened to form an aggregate having a particular size or range of sizes.

Abstract: A method of making dual or multi-porosity porous plastic strips comprising placing a first quantity of plastic granules into a mold, and placing a second or additional quantities of plastic granules into the mold above the first quantity. The particle sizes of each of the quantities of granules placed into the mold are different from the particle sizes of all the other quantities of granules in the mold. The granules are subjected to heat and pressure so as to fuse them together into a self-sustaining porous plastic billet. The billet has a number of fused-together regions corresponding to the number of quantities of granules placed into the mold. The billet is sliced in a direction transverse to the planes containing the interfaces between the regions of the billet so as to create strips, each strip comprising interconnected regions have porosities which differ from one another. The mold may be cylindrical and the strip created by skiving it off the cylindrical surface of the billet.

Abstract: The invention is to apparatus and method for a plasticizing batch process used in manufacturing building materials such as sheet goods, roofing shingles, and various sizes of dimensional lumber products. Recycled waste plastics and other not plastic materials are used in a batch process to plasticize the waste materials into a mixture used in molding various products. A intensive mixture mixes and plasticizes the waste materials of a predetermined weight until the plasticized mixture reaches a predetermine temperature. The material is then expelled to a material mover to dispense the plasticized material by weight to molds in which the plasticized material is pressed to form various products.

Abstract: In a fiber composite plastic composed of plastic composition and fibers, the fibers have a pronounced fiber length distribution, in particular more than 50% by weight of the fibers have a length outside the range from 0.8.times.L to 1.2.times.L, where L is the mean (weight average) fiber length, and the mean fiber length is greater than the critical fiber length of the plastic composition/fiber system.

Abstract: A basic block with a stable shape and size is shaped from fragments of a polymer mixture compressed in a hydraulic press (1) b piercing the block with spikes (8) heated to a temperature higher than the softening point of at least one of the polymers in said m

Abstract: The present invention employs a main shaft cantilevered from a frame. A die holder is disposed around the outside of the shaft, and in the preferred embodiment rotates by the use of adjustable tapered roller bearings around the shaft. Fixed to the die holder is a die, and the die and die holder define a pelletizing chamber. The shaft supports a roller frame with a plurality of rollers within the pelletizing chamber. The resulting construction is a pelletizer shaft support structure that uses only a single set of bearings. In the preferred embodiment, the main shaft is comprised of an inner shaft and an outer shaft. The inner shaft is located coaxially within the outer shaft and supported within the outer shaft by static bushings. The roller frame and rollers are mounted to the inner shaft. The inner shaft and the outer shaft are both fixed to the frame structure.

Abstract: A method for preparing a composite oxide having oxygen absorbing and desorbing capability involves the steps of: providing a starting composite oxide comprising cerium oxide, zirconium oxide, and hafnium oxide; subjecting the starting composite oxide to heating-deoxidation to give a deoxidized composite oxide; and subjecting the deoxidized composite oxide to heating-oxidation.

Abstract: An insulation assembly and method of making is disclosed. A fiber pack is engaged along its side edges to tuck the fibers inwardly and also establish a desired width. The insulation assembly has the longitudinally extending tucks along each of its side edges and each of the side edges has a generally concave cross section.

Abstract: A process for producing a reinforced plastic motor vehicle bumper includes the steps of placing a woven roving (17) on a center section of a preform screen (10) that is retained by a vacuum draw from a suction fan (16). Chopped glass fibers (20) and a curable binder are sprayed onto the preform screen and woven roving. A second layer (22) of woven roving is placed onto the center section of chopped glass and first layer (17) of woven roving. Either the excess trim (39) is trimmed by a cutting die (50) before the preform is cured or the die is first cured and then the excess trim is trimmed by a cutter using a plastic base (35) in the screen that circumscribes the contoured section of the preform screen.

Abstract: To prepare a compacted, granular sodium silicate having an SiO.sub.2 /Na.sub.2 O molar ratio of 1.7:1 to 4.1:1, sodium silicate having a median particle diameter of <500 .mu.m is first mixed with a material increasing its hardness before being converted into pressed granules having particle sizes of 0.1 to 5 mm by compacting, comminution and screening.

Abstract: An apparatus and process for combining an organic fibrous material with a thermoplastic material forming a wood-imitating composite. The mixed material is extruded into a die system comprising a transition die, a stranding die and a molding die. The flow rate of the material through the die system is equalized by preforming the mixed material with the transition die to a shape approaching the end product, stranding the material with the stranding die to form individual strands, and compressing the individual strands with the molding die after it exits the stranding die. The die system may also include an adapter die positioned between the extruder and the transition die which functions to control the amount of mixed material which enters the die system. A product comprised of recyclables shredded and mixed to form a wood-imitating composite from a low-temperature extruder is also provided.

Abstract: A method is provided for processing a mixture raw automobile shredder residue, and virgin and/or contaminated synthetic plastic material, e.g., raw post consumer plastic waste. By means of this method, automobile shredder residue produced by a conventional automobile shredder is formed into a first stream by being ground in a first granulating zone to a reasonable small granular size using conventional equipment. A second stream comprising virgin and/or contaminated synthetic plastics material is ground in a second granulating zones. The two streams are combined to provide a processable mixture. The processable mixture is introduced into a high intensity, mixer. The processable mixtures transformed into a semi-molten discharge stream by the kinetic energy imparted to the processable mixture by the mixer are simultaneously vented from the mixer. The semi-molten mixture emerging from the mixer is then introduced into an extruder or press where it is formed into a mass of desired shape, and cooled.

Abstract: A method is provided for producing dense, free-flowing and non-caking alkali metal silicate-based particles which are heat expandable into lightweight particles of a spumiform character. Pursuant to the invention, one provides at a selected temperature a dilatant aqueous gel comprising an alkali metal silicate as the majority non-aqueous component, the silicate being present in the gel in a dissolved state; and the non-aqueous content of the gel being in the range of from about 38 to 65% (w/w). Shearing forces are imposed upon the gel which exceed the flow response characteristics of the gel, whereby the viscosity of the gel becomes sufficiently high to cause a discontinuity in the gel, resulting in disruption into discrete particles. The discrete particles are conditioned while being maintained as separate entities to thereby form a skin on the particles so that they will not agglomerate or coalesce with one another.

Abstract: With the method of processing liquids, fine to very fine organic and/or inorganic granular particles are used, whereby pursuant to the invention the particles are mixed and compressed together in a first step to form an agglomerate that is heated at least to a temperature that is near the melting point thereof. The particles are thereby fixed in place by being subjected to a process similar to sintering for a suitable length of time, whereupon the resulting agglomerate is screened, or reduced in size in a grinder, to a granular size that is suitable for an intended use. This enables stabilizing and filtering aids to be produced with predetermined or predictable physical or chemical properties that are suitable for specific processes.

Abstract: A method for the production of spherical granulated materials from powdered solids and the granulated materials produced by it are disclosed. The method is characterized in that the powdered solids are moistened, possibly together with the usual binders, flow agents and plasticizers for the compression of solids, by the addition of a corresponding quantity of liquid and mixing smoothly in a mixer; they are then compressed with a ring collar mill into cylindrical agglomerate and then rounded in a rounding unit with wrinkle washer. The granulated solids thus produced have a very narrow particle size distribution and are distinguished by good flowability and good dispersability, depending on process controls.

Abstract: A method and apparatus in the context of a rotating conveying screw situated within a cylindrical housing which has an inlet port on one end of the cylinder and a discharge opening on the other end of the cylinder. A resistance plate is mounted transversely to the conveying screw near the discharge opening for corotation with the screw. The plate is mounted to define a discharge gap between the opening and the plate. A sleeve on the housing is employed to adjust the size of the gap between the plate and the opening. A process controller positions the sleeve by means of a pair of screw jacks. The controller adjusts the discharge gap width to maintain feed material temperature within a predetermined band. Alternatively the controller adjusts the discharge gap width and feed screw speed to maintain a predetermined specific energy input into the feed material. The helical screw is preferably supported at both ends by a bearing means.

Abstract: A process and apparatus for manufacturing thermoplastic posts in which granules of thermoplastic scrap material containing water and other contaminants are fed through a constant diameter chamber in a molding device by a rotating auger. The auger extends only halfway into the chamber, thereby subjecting the thermoplastic to much lower amounts of compression and heating than is produced through conventional methods of extrusion. The outer layer of granules is melted an then cooled to form a wall for encasing the more loosely-packed granules in the center core of the post as it exits the chamber. The post material is then cut to length and the ends of the cut posts are cut to a desired shape for driving into the ground or for other purposes.

Abstract: A method of producing a form-stable sintered porous shaped phenolic resin article with continuous open pore structure and high macroporosity, in which a phenolic resin mixture is partially cured to a solid which is then comminuted to give a comminuted resin. The comminuted resin is admixed with water, hexamethylene tetramine and a cellulose ether, and the resulting comminuted resin mixture is formed into a shaped article which is allowed to come to equilibrium with air having a relative humidity of less than 100% at a temperature below 100.degree. C. The shaped article is then sintered to produce a form-stable sintered porous product.

Abstract: A process for the suspension agglomeration of amidoperoxyacids which leads to improved rheological storage stability of aqueous suspensions made from these agglomerated peroxyacids is disclosed. Also disclosed are aqueous suspensions of stable viscosity made by milling these agglomerates to a mean particle size of about 20 to about 75 microns.

Abstract: A process for the production of particulate board from a matrix of flake or particles mixed with a cementitous material includes the steps of continuously feeding the matrix into a press, applying at least one of steam and gas or gases to the matrix to cure same to form the particulate board, and removing steam and gas or gases therefrom by vacuum assistance. The apparatus includes press and diffusion belts, which guide the matrix through a nip, where it is compressed into particulate board. Upon exiting from the apparatus, the boards so produced are cut into predetermined lengths.

Abstract: A method for the production of a fibrous product containing curled fibers includes applying rectilinear bi-component fibers (17) to the upper side of a raw material sheet (2) before it is introduced into a defibrator (1). Immediately before the introduction a heating is effected. When the rectininear bi-component fibers (17) are introduced into defibrator (1), the beater bars (9) effect a curling effect to provide a raw material including curled bi-component fibers. Hereby it is possible to substantially reduce the manufacturing costs, however, having the effect of curled bi-component fibers in the final fibrous product. Moreover, a good bonding of the fibers is obtained in the final product.

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 processing line forms a desired end product for a plastic extrusion machine by supplying raw plastic material to a shredder. The shredder forms partially-fused, irregularly-shaped chunks of the raw plastic. The use of the shredder eliminates the requirement of extraneous matter separation prior to feeding of the shredder. The output of the shredder is conveyed to a ram feeder after passing material separators, such as a magnet and/or a metal detector or the like. The ram feeder forces the chunks to an extruder which ultimately supplies liquified plastic to a pelletizer to form pellets. The pellets are transferred to a storage vat for reuse.

Abstract: A process is described for preparing peroxyborate agglomerates having an active oxygen content of at least 14% by weight in which amorphous primary particles composed of peroxyborate prepared by a spray drying process are subjected to compacting pressing-agglomeration. Briquettes, compressed strips and tablets can be obtained which can be comminuted, if desired, to peroxyborate granules of desired particle size and bulk density. Advantageous, optionally colored, peroxyborate agglomerates, particularly peroxyborate granules are prepared. Preferred agglomerates and granules are composed of sodium peroxyborates.

Abstract: The invention relates to sodium perborate hydrate granulates and a method for producing sodium perborate hydrate granulates with an available oxygen content of 14 to 18% by weight, especially 15 to 16% by weight; an abrasion index according to ISO test 5937 of not more than 10%; with a rate of dissolution of below 1.5 minutes, preferably below 1.0 minutes (for 1 gram of the granulate in 500 cm.sup.3 water, at 15.degree. C.); and with a bulk weight in the range of 0.6 to 1.2 kg/dm.sup.3. The sodium perborate hydrate granulate can be produced by compacting spray-dried, essentially amorphous sodium perborate hydrate starting material which exhibits a bulk weight below that of the granulate product, and a particle size of 90% less than 100 micrometers. The hydrate starting material is further characterized in that it loses 0.2 to 2.0% of its weight when stored at 60.degree. C. and 100 Pa for 30 minutes. The starting material is compacted between rollers at a contact pressure of 5.times.10 to 2.times.10.sup.

Abstract: Pulverulent ultra-high molecular weight polyethylene, alone or as a mixture with other polyethylenes, is compacted into extrudates by extrusion agglomeration under pressure at temperatures of 100.degree. to 150.degree. C. over average residence times in the die of 2 to 40 seconds and at a compression ratio of 1:5 to 1:15, and the extrudates are divided into pellets.

Abstract: The characteristics of compacted sodium silicate, in particular the bulk density, are improved by heating the material at an elevated temperature in an agitated bed. Bulk density in the region of 1 kg/liter can be obtained.

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: Glass fiber mats are made for subsequent use in preforming for an RTM or SRIM molding process, for example, such that the binder applied to the mat has two distinct curing stages. In the first stage, a partial cure is provided by visible light upon a free radical generation in response to a photoinitiator mixed in the binder in an exact ratio to give a predictable increase in viscosity to that of a semi-solid so that the fibers are sufficiently bound for subsequent handling, but not sufficient to complete a cure, while leaving a second stage ready for a final cure which is achieved by the use of a cationic-type second photoinitiator which is sensitive to ultraviolet light. During the second curing stage, the mat is formed into a three-dimensional shape of a desired end product and cured with ultraviolet radiation while still in the mold, to obtain a rigid three-dimensional preform structure.

Abstract: The process of producing a detergent in the form of portioned pressings by extrusion of a homogeneous premix containing a plasticizer or lubricant into strands through a perforated die under a pressure of from about 25 to about 200 bar and forming compacted granules thereof, and then pressing the compacted granules into portioned pressings such as tablets.

Abstract: A method and apparatus in the context of a rotating conveying screw situated within a cylindrical housing which has an inlet port on one end of the cylinder and a discharge opening on the other end of the cylinder. A resistance plate is mounted transversely to the conveying screw near the discharge opening for corotation with the screw. The plate is mounted to define a discharge gap between the opening and the plate. A sleeve on the housing is employed to adjust the size of the gap between the plate and the opening. The resistance plate can be a flat disc, conical, or other shape, so long as it is effectively attached to and rotates with the screw. The helical screw is preferably supported at both ends by a bearing means. Breaker bars are mounted on the transverse plate and extend over the gap between the discharge opening and the plate. Breaker bars may also be mounted to the cylindrical sleeve and extend over the gap between the sleeve and the plate.

Abstract: Degradable particulate absorbent materials and processes for manufacture, wherein the absorbent materials have: i) in most forms of the invention, on the order of not more than 10% by weight inorganic solids or "fillers" and in all cases less than 30% inorganic solids by weight; ii) an open, porous, shot-like fiber structure with low bulk density on the order of not more than 30 lbs./ft..sup.3 and, preferably, in the range of 15 to 18 lbs./ft..sup.3.

Abstract: Glass fibre reinforced plasterboard including a gypsum matrix of high density with embedded staple glass fibres therewith forming a pressure resistant solid body frame in which are embedded a plurality of very small hollow spaces of 5-350 microns in diameter, produced by a fine-pore foam or at least partially by small particles of non-porous and non-water absorbing fillers. During the manufacturing process of such glass fibre reinforced gypsum board, the gypsum and the fibre pieces are given only so much water that the water/gypsum ratio does not exceed 0.6, whereafter a foam and/or pourable or free-flowing fillers are added in such quantities that the apparent density of the entire board is at least 20% smaller than the density of the bonding means component of the matrix, and the paste is subjected while being formed to a vibration.

Abstract: A process for the production of compacted granules for use in a detergent composition by providing a homogeneous, solid, free-flowing premix to which a plasticizer or lubricant is added, and extruding the mixture through a perforated die under a pressure of from about 25 bar to about 200 bar to form strands of the mixture. The perforated die has an opening width corresponding to a predetermined size of the granules. After emerging from the perforated die, the strands are cut to the predetermined size of the granules by means of a cutting unit. The process enables the preparation of detergent compositions containing increased contents of surfactant components.

Abstract: A method for producing formed blanks wherein the components are premixed in a first stage and metered. Heat and moisture are added to the mixture in a controlled manner and the mixture is then formed into pellets. The pellets are cooled with air, comminuted and further processed into formed blanks after storage for an arbitrary length of time. The method of this invention leads to more homogeneous and improved results and is extremely inexpensive.

Abstract: A mill roll for pelletizing material having first and second counter-rotating, cylindrical rollers, the second roller having a solid exterior at its central portion, a hollow core and a series of perforations at each end. The first roller has a solid exterior. The rollers can be heated. Material to be pelletized is placed in the central portion of the nip formed between the rollers and as the rollers rotate, the material is spread outward toward the perforations where the material passes through such perforations to be cut off by a knife disposed within the second roller's hollow core. Also disclosed is a method of pelletizing material utilizing such mill roll.

Abstract: A method for making a reinforced fibrous mat having a net layer between two fibrous layers and the reinforced fibrous mat made therefrom is disclosed. The net layer improves handleability of the fibrous mat. The fibrous mat may be used as is or it may be molded to form a molded product. A thermoplastic binder such as latex or starch is used in forming the fibrous layers. A thermoset binding agent such as a phenolic resin is added to the fibers if the reinforced fibrous mat is molded.

Abstract: A soap powder having a bulk density of at least 600 g/liter contains 35-80 wt % of organic detergent-active material, of which 70-100 wt % is fatty acid soap of low (.ltoreq.20.degree. C.) Krafft temperature, and 20-65 wt % of inorganic and/or builder salts, and may be prepared by granulation and densification in a high-speed mixer/granulator. The high bulk density soap powder shows improved powder properties and better wetting and dispersion behavior in the wash than corresponding undensified powder.

Abstract: In a batch process for repetitive molding of fiberballs into cushions that are required in the same specific shape in large numbers, the molds are filled continuously by means such as a chute.

Abstract: A method for the production of granular sodium perborate tetrahydrate is disclosed herein. The method includes the steps of adding 0.3-5% by weight of a sodium salt or a potassium salt of a polymeric carboxylic acid to powdered perborate tetrahydrate, softening the mixture by heating under pressure to form a plastically deformable mass, deforming the plastically deformable mass into thin strands by pressing, and comminuting the strands into granular form. The perborate tetrahydrate may be de-watered to produce granular perborate monohydrate. The final granular products exhibit high abrasion resistance and are preferably used in washing and cleaning agents.

Abstract: A radial die densifier is disclosed having a means for regulating the rate of material flow. Material passes through a feed cylinder in which is disposed a distributor cone. The feed cylinder may be moved toward and away from the cone so as to vary the width of a flow passage way formed between the end of the feed cylinder and the distributor cone. Also disclosed is a method for producing fuel pellets, logs, or the like, by densifying paper coated with a moisture resistant material in which the coating acts as a binder and a combustibility enhancing agent.

Abstract: A system is disclosed for impregnating a stack of low permeability core samples with epoxy resin, preferably containing fluorescent dye. The system is particularly suited for preparing core samples from tight gas sands for thin section analysis. The system creates channels through which the epoxy can flow, thereby avoiding the problems of prior methods where uppermost samples in a stack prohibit epoxy flow from reaching lowermost samples in the stack. In the practice of this invention, the core samples are alternately layered with a highly permeable material such as a synthetic material comprised of silica sand bonded with aluminum silica glass. The resulting stack is encapsulated in heat shrink tubing with coarse sand positioned between the outer walls of the stack and the inner walls of the tubing. After the tubing is heat shrunk around the stack, the stack is placed in an overburden coreholder for introduction of epoxy into the core samples under increasing pressure.

Abstract: A biodegradable low density packing material, comprising an expanded wheat and starch product having high dimensional stability at high humidity and temperature ambient conditions. The invention also includes a method of preparing a low density biodegradable packaging material having a blended mix of wheat, amylose starch and amylopectin starch with approximately 1% gelatin being added after the initial mixing of the product at temperatures of 300.degree. to 350.degree. F.

Abstract: Provided is an injection-molding method for forming into given finished parts by injection-molding raw materials of a metal or ceramic powder feed, in which steps of coating a release agent to the mold, degreasing and freeze solidification are dispensed with. In this method, a metal or ceramic powder feed is kneaded with an agar sol comprising water, which may have or have not been treated magnetically, agar powders having a gel strength of 2000 g/cm.sup.2 at an least 2% concentration and sodium borate to form a clay form of sol-state plastic material, and this material is then put in a heat-retaining hopper of injection-molding equipment in which it is injection-molded. Alternatively, this clay form of plastic material is cooled for gelation and pelletization (to obtain finely granulated gels). The pellets are put in a hopper of injection-molding equipment in which it is formed while heated and melted.

Abstract: An apparatus provides separate coarse rate and fine rate adjustability of spacing between extrusion rolls and a surrounding extrusion die in a pellet mill, including a roller tire, for each extrusion roll, mounted on bearings which are supported on a hollow shaft having a cylindrical eccentric bore; a solid axle shaft disposed within each hollow shaft and having eccentric bearing-journaled extensions and an axial length greater than that of the hollow shaft; a rigidly mounted front roller support plate having a bore for supporting said bearing-journaled eccentric extension at a front end of said solid axle shaft for each said roll, the bore being aligned with a matching bore for supporting a bearing-journaled eccentric extension at a rear end of each solid axle shaft for each said roll. Attached to each hollow shaft is a provision for rotating the hollow shaft to adjust a spacing distance between the roller tire and the extrusion die and for holding the shaft in a desired rotated position.