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: A horizontal vacuum extrusion line includes a fixed bulkhead, a die inside the bulkhead, a telescoping vacuum chamber section and a fixed chamber section. A dam in the fixed section forms a pond for immersion cooling of the extrudate. A truss extends from the dam to the bulkhead supporting, shaping and calibration equipment and extends through the telescoping section. Fluid pressurizable seals at each end of the telescoping section are operable after the telescoping section is closed against the bulkhead and the telescoping and fixed sections are locked together. The telescoping section provide a more compact line and easier access to the complex equipment downstream of the die. The extrudate from the die passes down into the pond and then through an orifice in a hood projecting from the chamber into a lower level portion of the pond exposed to atmosphere. The hood also includes a tractor drive to push the extrudate through the underwater orifice.

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: An extruded hook fastener strip is created on a roll having hook forming cavities in its surface by extruding plastic material into the interface between the forming roll and a second strip carried by a backing roll. The second strip is firmly bonded to the fastener strip on that side opposite the formed hooks.

Abstract: An apparatus for forming a thermoplastic pipe having a profiled surface includes a nozzle having an extrusion orifice feeding extrudate in a downstream direction to a mold path which extends from the nozzle and along which are provided a first mold block and a second mold block downstream of the first mold block. The mold blocks are closable around the extrudate to form the pipe and are openable to release the pipe. The mold blocks are moved together with one another and with the pipe in the downstream direction when the mold blocks are closed and are opened and sequentially moved in an upstream direction along an axis contiguous with the axis of the mold path while the extrudate continues to move in the downstream direction. The first mold block is moved in the upstream direction before the second mold block such that the mold blocks never pass one another on the mold path.

Abstract: A shrink resistant resin composition which is curable at room temperature. The composition is (a) a curable unsaturated polyester resin, (b) an accelerator, (c) a low temperature free radical peroxide initiator, and (d) a low profile additive comprising polyolefin powder. The resin composition may be cured at room temperature to provide a molded article which exhibits improved shrink-resistance.

Abstract: A method of manufacturing of continuous, at least two-layer products having an upper layer formed of a lacquer material, the method having the steps of providing an apparatus including a co-extrusion tool having first and second conduits, respectively, with the first and second inlets, with the second conduit circumscribing the first conduit, and a merging section in which flows exiting the first and second conduits merge, and first and second extruders connected with the first and second inlets, respectively, and simultaneously injecting melts of base and lacquer materials with the first and second extruders, respectively, through the first and second conduits, respectively, so that on at least two-layer product exiting the merging section of the co-extrusion tool and having an upper lacquer layer, is produced in a single step.

Abstract: The invention relates to a method for manufacturing a catheter. This method includes the manufacturing of a tube-like basic body with a proximal and a distal end, the arranging of a connecting member to the proximal end, and the finishing of the distal end, wherein for the basic body at least partially material has been used which forms cross links when irradiated and wherein the basic body is exposed to controlled radiation.

Abstract: A catheter and method for manufacturing catheters. The method includes the steps of manufacturing a tubular member sized and dimension for use as a catheter and irradiating the tubular member to impart a desired stiffness to the tubular member. A single coat catheter is constructed from a polymer tubular member irradiated to cross-link polymer molecules within the polymer tubular member, wherein cross-linking the polymer molecules alters properties of the polymer molecules to create a polymer tubular member having improved stiffness characteristics.

Abstract: An extrusion device for making a section member of complex section that includes an internal portion and an outer layer. The device includes a first inlet channel for a first molten plastics material, a body including an extrusion channel whose wall defines the external outline of the section member, and an axial extrusion core that serves to define the internal outline of the section member. The device also includes a second inlet channel for a second molten plastics material, and means for adjusting the flow of said second molten plastics material in the second inlet channel so as to ensure uniform distribution of the second plastics material around the external outline of the section member at the outlet end of the second inlet channel.

Abstract: Each of two screw bodies includes a feed screw and a kneading screw. The feed screw is formed of a wide-flight 1-lobe intermeshing screw designed so that the ratio W.sub.0 /D of the flight width W.sub.0 thereof to the screw diameter D ranges from 0.2 to 0.4. The kneading screw includes a plurality of double tipped kneading discs designed so that the ratio W/D of the width W thereof in the axial direction of the screw bodies to the screw diameter D ranges from 0.3 to 1.0, and displaced from one another in the circumferential direction of the kneading screw, the angle by which any two adjacent kneading discs being displaced range such that at least a backflow of an extrusion material can be prevented.

Abstract: A fire retardant mat is disclosed comprising rubber particles bonded together with a binder containing an elastomeric polysulfide and a polyolefin, with the mat also containing a fire retardant. A composite is also disclosed in which the mat is coated with a fire retardant coating in which an elastomeric polysulfide is part of the coating. Further, there is disclosed a method of making the mat by extrusion and also of placing a fire retardant coating on the mat after extrusion.

Abstract: A process for the extrusion of polyethylene having a broad molecular weight distribution wherein the polyethylene is prepared in pellet form, said extrusion taking place in a pelletizing extruder having one or more zones essentially filled with polyethylene and two or more zones partially filled with polyethylene including(i) introducing the polyethylene into the extruder at a temperature sufficient to melt the polyethylene; (ii) introducing a mixture of an inert gas and oxygen into each partially filled zone wherein the mixture contains about 1 to about 21 percent by volume oxygen based on the volume of the gaseous mixture; (iii) passing the molten polyethylene through each zone at melt temperature; and (iv) extruding the polyethylene into pellets and cooling same.

Abstract: High-strength, high-modulus, polymeric implants are produced from highly oriented monofilaments and/or films by solvent welding technique. This avoids loss of orientation, as well as thermal and oxidative degradation, which is the common case with the state of art techniques, namely melt extrusion, injection molding and heat compression molding. The invention leads to uniform bonding of the separate structural units (monofilaments or films) into compound-filament or compound-laminate which protects the implant against delamination. Monofilaments of films are swollen at the surface with a suitable solvent which does not destroy the orientation in the core. A bundle, resp. a sandwich of the swollen monofilaments or films is pulled through an orifice generating compressive stresses between the filaments, resp. films. Solvent removal from the swollen compressed interfaces leads to a homogenous welding of the monofilaments or films.

Abstract: An iontophoretic structure for medical devices is provided that uses controlled electrical current derived from two dissimilar galvanic materials to drive oligodynamic metal ions into solution to kill bacteria on and near the device to which the structure is affixed. In one embodiment, a first galvanic material separated from a second galvanic material by a resistive material produces an anti-bacterial current flow when placed in contact with an electrolytic fluid. In another embodiment, a cylindrical elastomeric catheter incorporates a first and a second galvanic material separated by a resistive material which controls a current flow between the galvanic materials when the catheter is immersed in an electrolytic fluid. The galvanic materials can be dissimilar metal powders embedded in a conductive polymer substrate that forms an iontophoretic composite material, or dissimilar metals arranged in layers separated by a resistive layer.

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: A method of granulating synthetic resin by extrusion and an apparatus thereof by which a large quantity of pellets can be effectively produced is provided. A plurality of sets of granulating sections are connected with an end of an extruder in parallel. The plurality of sets of granulating sections are simultaneously and independently operated for granulation in a normal operation. When one of the sets of granulating sections is stopped, the other set may still operate for granulation.

Abstract: A method of making ornamented elongate members, for example for picture frames, uses the steps of extruding a first material and cooling it so that it is substantially solid, extruding a second material along a surface of the first material, which is arranged to undergo a change enabling a firm bond to be formed between the materials, shaping the second material to produce surface ornamentation and cooling the first and second materials. This provides an inexpensive and quick way of producing ornamented members.

Abstract: A polyester base film for magnetic recording media having improved adhesion to the magnetic layer applied thereon as well as good abrasion and scratch resistance prepared by melt-extruding a polyester resin containing inorganic and organic particles to form a sheet; extending the sheet; and heat-setting the extended film, wherein the heat-setting step is carried out by heat-treating a first surface of the film, which is to be coated with a magnetic material, at a temperature ranging from 170.degree. to 290.degree. C. for 1 to 50 seconds so that the crystallinity thereof ranges from 50 to 70% and heat-treating the other surface of the film at a temperatue which is lower than the first heat-treatment temperature by 20.degree. C. or more for 1 to 200 seconds so that the other surface attains a crystallinity which is lower than that of the first surface by at least 5%.

Abstract: Apparatus and methods are provided for producing a long fiber-reinforced thermoplastic resin compositions by initially loosening a continuous fiber bundle by a fiber loosening device so as to form a moving web-like continuous fiber bundle. At least one side of the moving web-like continuous fiber bundle which passes through the die is coated with a thermoplastic resin melt extruded through a slit disposed in the die by an extruder. The slit has substantially the same width as that of the web-like continuous fiber bundle to provide an even supply of the resin melt in the width direction of the web-like continuous fiber bundle. However, the slit has a spacing which changes at a point in the widthwise direction of the web-like continuous fiber bundle so as to be increased as the point is more remote from a feed port and have a constant spacing in the flowing direction of the thermoplastic resin melt.