Abstract: A shower gripping accessory device is provided which may comprise an elongate cylindrical body having a plurality of terminal ends. The elongate cylindrical body may comprise an outer shell body and a cavity therein. The thickness value of the outer shell body may be substantially between one-quarter to one-half a radius value of the cavity. Further, a multilayered frictional surface substrate may be disposed over the outer shell body. The multilayered frictional surface substrate may comprise a flexible polymer base layer, one or more adhesive resin layers and a frictional material layer. The one or more adhesive resin layers may couple the frictional material layer to the flexible polymer base layer.

Abstract: Embodiments relate generally to channel implants used for surgical reconstruction and/or repair. Certain embodiments of the channel implants are designed for craniofacial surgery, reconstruction, and/or augmentation. More specifically, some embodiments find particular use in orbital reconstructive surgery, such as repair of the orbital floor or supraorbital ridge (brow ridge). Embodiments also relate to methods for using and for manufacturing the channel implants disclosed.

Abstract: Methods and apparatus for transporting or delivering elastomeric emitters and inserting elastomeric emitters into drip line are disclosed herein, and more particularly, to methods and apparatus for manufacturing drip line to form an irrigation assembly or system. In one form, the apparatus comprises a feeder, conveyor, emitter drive mechanism and guide bar for insertion into an extruder to bond the elastomeric emitter to an inner surface of the extruded tube. Friction reducing apparatus and methods are further disclosed as well.

Abstract: A method for manufacturing a fuel tank or filling pipe including a wall made of thermoplastics material and a fibrous reinforcement over at least part of the surface thereof, the method including: heating the fibrous reinforcement to bring the fibrous reinforcement into an at least partially molten state; introducing the heated fibrous reinforcement, and the wall in at least partially molten state, into a mold; and welding the fibrous reinforcement to the wall using pressure of a gas which inflates the wall and presses the heated fibrous reinforcement firmly against the wall in the molten state.

Abstract: A method of producing a multi-lumen elongate body for a medical device. Unlike known methods requiring a solid core of material inserted into each lumen to maintain patency of the lumens during manufacture, the present method obviates the need for a solid core within one or more minor lumens, which saves cost and production complexity. One or more material overlay and mesh overlay steps may be used to produce the multi-lumen elongate body, but only the main lumen may include a solid core therein during all manufacturing steps. The one or more minor lumens may each be defined by a lumen tube having a sufficient stiffness to withstand external pressure during all manufacturing steps without the need for a solid core within.

Abstract: Methods and apparatus for transporting or delivering elastomeric emitters and inserting elastomeric emitters into drip line are disclosed herein, and more particularly, to methods and apparatus for manufacturing drip line to form an irrigation assembly or system. In one form, the apparatus comprises a feeder, conveyor, emitter drive mechanism and guide bar for insertion into an extruder to bond the elastomeric emitter to an inner surface of the extruded tube. Friction reducing apparatus and methods are further disclosed as well.

Abstract: A method of spirally winding a thermoplastic profile in the manufacture of welded plastic tubes and a winding apparatus for manufacturing a spirally wound tube. A thermoplastic profile is received on a plurality of sliding members being arranged in an axial direction of the tube to be manufactured and defining an essentially cylindrically shaped winding surface with a diameter essentially corresponding to the inner diameter of the tube. The profile is directed along a spiral path towards the previous turn of the profile in order to force opposite edges of the profile together for welding. The radial position of the sliding member is adjusted to control the tension in the thermoplastic profile and the force with which it constricts itself around the winding surface as defined by the sliding member.

Abstract: A foam cushion pad formation assembly that includes a conveyance assembly having at least one moving conveyor component presenting a pad shape formation surface, which surface is convoluted and arranged to shape sealed enclosures of a pad chain received by the conveyance assembly. A separation device is provided to separate shaped pads of the pad chain received by said conveyor device. The shaped pads include convoluted surface that are formed by way of gripping projection and recesses combinations in the moving conveyor component. Embodiments include sensing for non separated pads from a downstream end of the bag chain, pad chain separation enhancement devices, and various control system including the requirement of confirmation of separation before feeding a new pad enclosure as in one containing liquid polyurethane precursor chemicals.

Abstract: A method and apparatus in the manufacture of a spirally wound and welded tube is disclosed. A thermoplastic profile is slid along a path on a slider arranged in an axial direction of the tube and defining a cylindrically shaped winding surface with a diameter corresponding to the inner diameter of the tube to be manufactured. The profile is directed along a spiral path towards a previous turn of said profile by means of radial rollers spaced along said spiral path by adjusting the position of the rollers: Opposite edges of said profile turns are welded together by providing an extruded welding mass between said profile turns. The welded tube is fed from the welding station by means the rollers by sliding it onto a rotating support.

Abstract: A venous access catheter shaft and method of using and manufacturing such a catheter is provided. In one aspect of the invention, a catheter is provided comprising a base polymer having a Shore A durometer of 85A or lower, with 2.0% percent by weight of surface modifier, and a radiopaque filler comprising between 20-40 percentage by weight. In another aspect of the invention, a method reducing thrombus accumulation on a venous access catheter is provided wherein the catheter surface's resistance to thrombus formation is enhanced during indwell time by lowering the durometer rating of the base polymer of the catheter without increasing the amount of surface modifier additive. In another aspect of the invention, a method of manufacturing a catheter shaft is provided, wherein the shaft is formed comprising a base polymer having a Shore A durometer of 85A or lower, with 2.0% percent by weight of surface modifier, and a radiopaque filler comprising 30% by weight barium sulfate, and optionally a colorant of 0.

Abstract: A dripper detection device for an irrigation pipe manufacturing system includes a continuous pipe feeder capable of making a pipe equipped with drippers, each dripper having a water outlet. The pipe circulates along a predetermined circulation direction (X-X?) while keeping the drippers' water outlets in a predetermined orientation. The dripper detection device includes a laser detection unit with a laser source emitting a laser beam directed to the pipe outer face location where drippers are present at regular intervals, and a laser signal receiver which receives and analyses the laser beam reflected on the pipe outer face to provide a transformed reflected signal which contains information about the passage of each dripper facing said laser detection unit.

Abstract: A method of manufacturing a balloon catheter in which an extruded tubular balloon parison is attached to a component of a catheter shaft prior to blow molding a balloon from the extruded tubular balloon parison. A distal end region of the tubular balloon parison is attached to the outer surface of the elongate catheter shaft component to form a distal bond region between the tubular balloon parison and the catheter shaft component, and then the assembly is positioned in a balloon mold. An annular space between an inner surface of the tubular balloon parison and the outer surface of the elongate tubular member is pressurized to expand the tubular balloon parison in the cavity of the balloon mold to form an inflatable balloon.

Abstract: Medical dilatation balloons comprise a polymer that has the attribute of memory, and/or is crosslinked to impart memory. Such balloons exhibit a reduced tendency to overinflate at high inflation pressures. Furthermore, such balloons when shrunk radially by the application of heat while restraining axial shrinkage, exhibit customizable linear or non-linear compliance curves and lower crosslinking profile relative to the same balloon when unshrunk. Also disclosed is an expansive element within a tube whose outer diameter is equal to the outer diameter of the tube from which it was made. In addition, disclosed are (a) processes for preparing crosslinkable polymers, (b) joining crosslinked balloons to catheter systems, (c) forming shrunk balloon elements, and (d) forming an expansive element within a tube whose outer diameter is equal to the outer diameter of the tube from which it was made.

Abstract: An integrated process for making an inflatable laminated article comprises extruding a first film and a second film, followed by cooling the first film and the second film so that the films will not fuse to one another upon contact with each other. The films are then brought into contact with one another, and selected portions of one or both films are heated so that the films are heat sealed to one another in a selected area having a desired pattern. The unsealed area between the film provides inflatable chambers between the first film and the second film. An alternative process utilizes a film tubing in lay-flat configuration to produce a laminated inflatable article.

Abstract: Method of manufacturing a plant receptacle wherein the following steps are performed: a) a PLA thread is co-extruded with a flexible aliphatic polyester, said flexible aliphatic polyester comprising 10 wt % to 30 wt % bamboo material, such that the flexible aliphatic polyester covers the PLA thread, thereby creating a weldable biodegradable thread; b) using said weldable biodegradable thread in a woven or non-woven process, making a permeable sheet material; c) continuously forming said sheet material into a continuous receptacle, by bringing the side edges of said sheet material into contact and welding said side edges together; d) cutting said continuous receptacle in predetermined lengths thereby creating separate plant receptacles.

Abstract: A system for manufacturing an irrigation pipe comprises an extrusion unit, a calibrator unit, a cooling unit for cooling the irrigation pipe in a cooling liquid, and a traction unit for drawing the irrigation pipe in the cooling unit. The cooling unit comprises a device for detecting holes in the wall of the irrigation pipe and arranged for being immersed in the cooling liquid. The device for detecting holes comprises at least one optical transmitter and at least one optical receiver which define an optical barrier. The device is arranged so that the holes in the irrigation pipe located below the device produce gas bubbles which modify the optical barrier.

Abstract: The present invention provides a method for producing medical oversleeves and a production system. The method comprises steps of unreeling, gluing, agglutinating, cutting and finished product collecting, etc. The system comprises an unreeling device, a gluing device, an agglutinating device, a cutting device and a finished product collecting device, etc. With the method for automatically producing medical oversleeves and the production system provided by the present invention, the deficiency of the present manual semi-mechanized production is overcome.

Abstract: Provided are extruding a raw material into a prismatic hollow material having both open ends (Step (a)), drawing the hollow material a plurality of times so as to have a desired thickness (Step (b)), manufacturing a main body by cutting the drawn hollow material to a predetermined length (Step (c)), forming a sealing cover having a shape corresponding to an open end of the main body (Step (d)), and adhering the sealing cover to the open end of the main body (Step (e)).

Abstract: A thin ribbon spirally wound polymer conduit and method of forming, wherein a helical reinforcing bead is interposed adjacent overlapping layers of ribbon. Further, a method of continuously forming spirally wound conduit wherein a sacrificial layer, preferably having a different base polymer to that of the conduit, is first applied to the former before the conduit is formed overtop.

Abstract: The present invention is directed to cellulose acetate table tennis balls and to processes for forming the cellulose acetate table tennis balls. Cellulose acetate may be provided as a flake or powder and then may be melt extruded to a sheet or pellet. The sheet may be soaked and a plurality of coupons may then be cut from the sheet. The coupons may be melt extruded to form hemispheres and then two hemispheres may be adhered to each other to form a sphere. The pellets may be injection molded to form hemispheres and then two hemispheres may be adhered to each other to form a sphere. The cellulose acetate table tennis balls are free of celluloid but meet the International Table Tennis Federation standards for table tennis balls.

Abstract: Cushions include a plurality of pockets formed from a support material and a deformable member comprising a deformable polymer material disposed in each pocket of the plurality of pockets. The support material may comprise at least one of a fabric and a film. Each of the deformable members may be configured as a column having a column axis. Methods of forming cushions include forming a plurality of deformable members, forming a plurality of pockets from a support material, and disposing each of the deformable members of the plurality of deformable members in each of the pockets of the plurality of pockets. The deformable members may be configured so that each of the deformable members is isolated from the other deformable members by the support material.

Abstract: The present technology includes an inner tube, the inner tube having a resin layer as an innermost layer and a rubber layer adjacent to the innermost layer. A material used in the resin layer is a resin composition that includes a resin including at least an ionomer containing a metal carboxylate, and a material used in the rubber layer is a rubber composition that includes a rubber including at least an epoxidized rubber.

Abstract: A ducting and associated method is provide in which the ducting includes a pipe with a thermoplastic or thermoplastic elastomeric layer and a reinforcing layer. The pipe has a curved or bent geometry and the reinforcing layer is made of a composite material based on reinforcement in intimate and direct contact with the subjacent layer. The geometry is obtained by hot forming the inner layer to give the geometry, and the reinforcement is either impregnated with a thermosetting matrix to form a thermosetting composite, or reinforcing fibers are intermixed with thermoplastic fibers or powders, or impregnated with a plastic polymeric coating that is curable chemically. Alternatively, the inner layer is first covered with the reinforcing layer in which the reinforcement includes reinforcing fibers intermixed with a thermoplastic material in the form of fibers, film or powder is blow-molded to give the pipe its final geometry.

Abstract: Method of fabricating a polymeric tube for attachment to a prefabricated tubular polymer body comprising: selecting an ethylene copolymer functionalized with a conjugated vinyl moiety, and coextruding an outer tubular layer comprised of the selected functionalized ethylene copolymer together with at least one inner tubular layer comprised of a thermoplastic elastomeric material to form a mating tube having an outer surface comprised of the functionalized ethylene copolymer, a central tubular passage having a longitudinal axis and opposing ends.

Abstract: Elongate, flexible catheter includes an elongated shaft having a proximal end, a distal end, and a lumen defined therein. The shaft includes a tubular member having an outer layer and an inner layer. The outer layer includes a first polymer selected from the group consisting of nylon 12, polyether block amide, and combinations thereof. The inner layer includes a second polymer having a heat deflection temperature greater than about 53° C. selected from the group consisting of nylon 11, nylon 6, nylon 6,6, nylon 6,12, polyamide-imide, polyetherimide, polypropylene, polyethylene terephthalate, polybutylene terephthalate, polyethereetherketone, and combinations thereof. Method of making an elongate, flexible catheter is also provided.

Abstract: A method includes premixing an anti-static additive and a first crosslinker to form an anti-static intermediate mixture where the anti-static additive is dispersed in the first crosslinker. The method also includes compounding the anti-static intermediate mixture and at least a portion of the first fluoropolymer to form a first compounded mixture. The method further includes extruding the first compounded mixture to form a layer.

Abstract: The use of a fiber-reinforced plastic material as reinforcement strips (2, 6, 7, 14, 15) of a window or door frame hollow profile (1, 10) is provided, with the fiber-reinforced plastic material having an E-module that is >8.000 N/mm2, and preferably >10.000 N/mm2, having a softening temperature of >100° C., and preferably >150° C. and an elongation coefficient of <6·10?5K?1, and preferably <5·10?5K?1 most preferably <4·10?5K?1, in particular fiber-reinforced polybutylenterephtalate, polyetylenterephtalate or a mixture thereof.

Abstract: A method for producing a connecting part (30), such as a connecting rod for an aircraft, made from a composite material, the connecting part including at least one hollow body (32) and at least one yoke (34) at each of the ends (36) of the body (32), is characterized in that the body (32) and the yokes (34) of the connecting part (30) are produced from a single section (P, P1, P2) made from a composite material and obtained using a continuous production process.

Abstract: A high-clarity, cast polypropylene produce pouch with first and second sidewalls and a bottom panel joined to form a pouch wherein the first and second sidewalls and the bottom panel are formed from cast polypropylene. The bottom panel can be a bottom gusset panel. The first and second sidewalls and the bottom gusset panel can have edges joined by side welding or heat sealing. Zipper or slide closures can close the first and second sidewalls. A method for forming a high-clarity, cast polypropylene produce pouch comprises creating a polypropylene (PP) resin, passing the polypropylene (PP) resin through a cast extruding machine and extruding molten polypropylene (PP) to produced extruded polypropylene (PP), rolling the extruded polypropylene (PP) in a cooling roller, and applying a surface-modifying corona treatment to the extruded polypropylene (PP).

Abstract: A high pressure hose and method of manufacturing the hose is disclosed. The hose is comprised of an elastomer, thermoset rubber inner tube, reinforced with one or more layers of braided or spiralized high tensile strength wire or high tenacity textile yarn and covered with a highly flexible thermoplastic sheath.

Abstract: Tubular bandage, in particular a finger or toe bandage which is formed as a tube comprising an outer layer which is connected to an inner layer, and wherein the outer layer has a diameter and an elasticity such that the bandage can be clamped adhesive-free around the body part to be treated, in the particular, said finger or said toe, and wherein the inner layer is made of an elastic wound-protective material, wherein said outer layer is made of an air-permeable and water-repellent material, and wherein, at the open endings, said outer layer extends in the longitudinal direction over the inner layer over a distance of more than 0.5 mm, such that the outer layer touches the body part to be treated, in particular a finger or toe, with its endings when applied.

Abstract: A flexible pipe body layer and method of producing a flexible pipe body layer are disclosed. The method includes coextruding an inner sub-layer and an outer sub-layer, wherein the inner sub-layer and outer sub-layer comprise a polymer, and wherein the inner sub-layer has a lower modulus of elasticity than the outer sub-layer.

Abstract: A pipe or hose composed of a polyamide moulding composition whose molecular weight has been increased by condensation, via addition of a compound having at least two carbonate units in a quantitative proportion of from 0.005 to 10% by weight, based on polyamide, where a) a starting polyamide moulding composition was provided, b) a mixture of the starting polyamide moulding composition and of the compound having at least two carbonate units was produced, c) the premix was, if desired, stored and/or transported, and d) the premix was then processed to give the moulding, this step being the first in which the increase of molecular weight by condensation occurred, the moulding being a pipe or hose whose external diameter is at least 25 mm is used as inliner for a pipeline.

Abstract: Apparatus and methods are provided for making one or more tubular components of medical catheters or other tubular bodies using a strip of polymer material including a length, a width, and a first surface including a lubricious or other coating or surface modification. The strip is directed adjacent an elongate mandrel, such as beading, such that the length of the strip extends along the mandrel and the coating is disposed towards the mandrel. The strip is rolled at least partially around the mandrel such that the coating or surface modification is disposed inwardly towards the mandrel, and one or more strip-constrainment members are wrapped around the rolled strip. The directing, rolling, and wrapping steps may be substantially continuous to create one or more strip-mandrel-constrainment member subassemblies.

Abstract: A method for preparing a stent-graft for intraluminal delivery, including positioning an expanded polytetrafluoroethylene (ePTFE) substrate over a support mandrel, coupling a shape memory member to a polymer cladding to form a polymer clad member, winding the polymer clad member in an overlapping helical manner onto a surface of the ePTFE substrate, joining and sealing adjacent overlapping regions of the polymer clad member together and to the surface of the ePTFE substrate to form a stent-graft, manipulating the stent-graft from a larger first diameter to a smaller second diameter, and loading the stent-graft into a restraining sheath at the smaller second diameter.

Abstract: A method and support apparatus for providing structural support to a mold or mandrel, such as a shape memory polymer (SMP) apparatus configured for shaping a composite part. The support apparatus may comprise a rigid structural member and a plurality of SMP cells attached thereto and configured to inflate or deploy in a malleable state toward and against a surface of the SMP apparatus, mold, or mandrel. Then the SMP cells may be returned to a rigid state while still pressed against this surface, thereby providing structural support when composite material is applied to an opposite surface of the SMP apparatus, mold, or mandrel. After the composite material is cured into the finished composite part, the SMP cells may be deflated or otherwise collapse toward the structural member to provide enough clearance to be removed from the cured composite part.

Abstract: In a hose having a resin layer as an inner layer, a plasma treatment is performed on the inner surface of the inner layer and a connecting portion of an end part of the hose to thereby perform surface modification. Then, a sealing layer made of an elastic material is coated on and bonded to the inner surface of the connecting portion.

Abstract: Embodiments of the invention relate to a stringer (108) adapted to transport fluid in an aircraft wing (100). For example, the stringer may be adapted to provide venting to one or more fuel tanks (111) in the aircraft wing, or may be adapted to provide fuel to the one or more fuel tanks. To perform this function, the stringer comprises a duct member (120) providing a duct and a structural member (121) providing an attachment surface for attachment of the stringer to a wing panel (112). Typically, the stringer is formed from a composite material such as carbon fibre reinforced plastic. A method of manufacturing the stringer is also disclosed.

Abstract: A method for producing an endoscope flexible tube comprising the steps of: preparing a flexible tube assembly including a spiral tube formed by spirally winding a metal strip and a cylindrical mesh sleeve, covering the spiral tube, formed by knitting metal wires; covering the flexible tube assembly with an outer coat from one end toward the other end of the flexible tube assembly by using an extrusion molding machine wherein the outer coat has a lower layer formed of a thermoplastic polyurethane elastomer and an upper layer formed of a thermoplastic polyester elastomer and the total thickness of the upper layer and the lower layer is made constant; and annealing the covered flexible tube assembly at a temperature in the vicinity of the softening point of the layer lower in softening point of the upper layer and the lower layer after the step of covering the flexible tube assembly with the outer coat, wherein in the step of covering with the outer coat, the melt viscosity ratio (thermoplastic polyurethane e

Abstract: The invention relates to a method for producing thermoplastic hollow articles, comprising: producing web-shaped or plate-shaped parisons from melted plastic in such a way that the parisons receive a specific wall thickness profile; cooling the parisons to obtain dimensionally stable semifinished products that still have the same wall thickness profile; heating the semifinished products and shaping the heated semifinished products into parts of a hollow article; and welding the semifinished products together to obtain a substantially closed hollow article.

Abstract: The present disclosure relates to a flexible submarine pipe comprising a plurality of layers, at least one layer of which comprises a polymer resin comprising at least one alumino-silicate or magnesium silicate nanotube chemically bonded to the polymer by a covalent bond, the method for preparing same and the use thereof for the transport of fluids, especially hydrocarbons.

Abstract: The invention relates to a method for producing a strand-shaped part, wherein a hollow section (16) of metal is extruded, the extruded metal hollow section (16) cools and/or is cooled, and a plastic strand (28) having one or more layers is extruded into the extruded metal hollow section (16) after or during cooling. The plastic strand (28) passes by a dispensing tool (24), exposed to the heat of the extruded metal hollow section (16) of an extruder (34). The dispensing tool is inserted into the metal hollow section (16) and comprises a dispensing outlet (26), which is disposed inside a region of the metal hollow section (16) in which the dispensing tool is cooled in relation to the temperature thereof during extrusion.

Abstract: A double-sided, slip resistant material is produced using a blown film process which produces a film having an interior heat sealable layer, a core layer of flexible polyolefin and an exterior polyolefin elastomer layer in combination with a blowing agent and optionally grit to produce a double-sided slip resistant material. A number of rollers are provided after nip rollers have fused the film together, and which form part of a machine direction orienter (MDO) that is used in line in the manufacturing process to heat, and then cool and condition (anneal and relieve any stresses and/or thickness inconsistencies in the film) prior to the film being wound onto a roll for storage.

Abstract: An anti-biofouling casing for a seismic streamer is described, the anti-biofouling casing comprising a polymer system comprising a hydrophobically-modified base polymer, the hydrophobically-modified base polymer comprising a base polymer having a backbone and a hydrophobically derivatized chain extender coupled to said backbone of said base polymer, wherein the the hydrophobically derivatized chain extender comprises a hydrophobic moiety. The anti-fouling casing comprises a hydrophobic surface the serves to prevent biofouling of the surface.

Abstract: A device for producing a drip irrigation tube comprising an extrusion apparatus for extruding a tube body made from a thermoplastic synthetic material is provided. Metering elements are inserted in the extruded tube body and connected to the tube body. A calibrating device adjusts the tube body to the desired outer shape, and a cooling device cools the tube body. Outlet holes are made in the tube body in the vicinity of the metering elements to permit the passage of water from the tube body during use. A control unit for controlling the device for making outlet holes is provided, and a sensor which upon lifting of the roller during passage of a metering element emits a signal to the control unit which emits a signal to the device for making outlet holes.

Abstract: The present invention relates to a preformed liner of Tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer adhered to the surface of a pipe, and in particular, an oil well pipe, without the need for either a primer layer or an adhesive. The liner comprises an effective amount of metal powder which provides adhesion between the liner and the surface of the pipe. The present invention also relates to a process for making such pipe, where in a preferred embodiment, the liner is co-extruded to form an inner layer and an outer layer. This co-extrusion embodiment is particularly useful in applications where high purity is necessary. In this case, the inner layer comprises an effective amount of metal powder and the outer layer is pure tetrafluoroethylene/ perfluoro(alkyl vinyl ether) copolymer.

Abstract: In a method for producing drip irrigation pipes, a tube body is extruded from a thermoplastic synthetic material and provided with a wall. The tube body is led directly and in non-contact fashion to a pre-cooling chamber in which the tube body is pre-cooled and in which metering elements are pressed on to the wall and connected to the wall. The tube body is sized to a final diameter and further cooled in a cooling chamber.

Abstract: The invention relates to a filter structure, for filtering particulate-laden gases, comprising a plurality of honeycomb filtering elements, said structure being obtained by assembling said elements, which are joined together by means of a joint cement, said joint cement being an essentially inorganic, preferably mineral, composite comprising at least: between 30 and 95% by weight of a filler formed by an assembly of grains, the melting point of which is above 1000° C., said grains having a diameter of greater than 30 microns; and between 5 and 70% by weight of a binder matrix incorporating a geopolymer phase, said binder matrix comprising, in percentages by weight of the corresponding oxides: SiO2: between 20 and 80%, Al2O3: between 3 and 50% and R2?O: between 3 and 30%, R2?O representing the sum of the alkali metal oxides present in the binder matrix.

Abstract: Exemplary embodiments are directed to a mold for producing hollow-cylinder-type molded parts, having an external mold portion, that determines an inner cavity of a molded part to be manufactured. The external mold portion has a first cylindrical mold, which extends in a rotationally symmetrical manner about a first axis, and a hemispherical mold having a diameter equal to a diameter of the first cylindrical mold directly adjoins one of the two ends of the cylindrical mold along the first axis, wherein a second cylindrical mold adjoins the hemispherical mold in radial alignment. The hemispherical mold has a spherical cap, the second cylindrical mold is rotatable together with the spherical cap about a second axis which is arranged at an angle with respect to the first axis, and the second cylindrical mold is arranged concentrically with respect to the second rotational axis.

Abstract: System and method for producing a pipeline liner for an additional pipeline. An exemplary system comprises a source of material to form a body of the liner and also comprises a source of material to form a reinforcement structure in the liner. The exemplary system additionally comprises a device that simultaneously receives the material to form the body of the liner and the material to form the reinforcement structure in the liner. The device produces the body of the liner with the reinforcement structure interspersed within the body of the liner in a single-step process.