Abstract: After the injection shaft moves backward and the gas is supplied into the injection chamber, it is desired to accurately control the gas supply amount in the injection device in which the injection shaft is moved forward to compress and dissolve the gas in the molding material in the injection chamber. An injection device of the disclosure supplies a gas into an injection chamber via a gas supply hole which passes through an injection shaft and is opened at a tip surface of the injection shaft. The injection device and a gas dissolution method thereof according to the disclosure perform backward and forward movement of the injection shaft for a plurality of cycles. The injection device of the disclosure has at least one seal ring and at least one piston ring aligned in an axial direction on an outer circumferential surface of the injection shaft.

Abstract: A tooling element includes a flexible sleeve defining an interior cavity. The flexible sleeve includes a sealable access port extending through the flexible sleeve from the interior cavity to an exterior of the flexible sleeve. The tooling element further includes vacuum-packed tooling particulate disposed within and filling the interior cavity of the flexible sleeve.

Abstract: An iron alloy manufacturing method which can suppress occurrence of distortion and crack in formed iron alloy layers is provided. During execution of a forming step, in a first temperature control step, an iron alloy layer temperature T1 of a predetermined number of laminated layers from a surface layer of iron alloy layers formed in the forming step is controlled to be kept within a range of Ms?T1?Ms+?, and in a second temperature control step, a base plate temperature T2 is controlled to be kept within a range of Mf???T2?Mf.

Abstract: A method is provided for casting a component. Accordingly, a casting core is provided within a cavity of a component mold. The casting core defines an inner component shape and includes a core wall. The core wall defines a core outer surface and a core inner surface disposed opposite the core outer surface. The core inner surface defines a core cavity. The casting core also includes a removal facilitation feature. The component is cast within the cavity of the component mold with the casting core positioned therein. The cast component is removed from the component mold and the casting core is removed from the cast component.

Abstract: The present invention relates to bimodal polypropylene random copolymers comprising ethylene as comonomer and articles made thereof, having an improved resistance against ?-irradiation and are especially suitable for application in the medical, pharmaceutical or diagnostic field.

Abstract: A method for reducing the crystallization temperature and the melting temperature of a polyamide powder resulting from the polymerization of at least one predominant monomer, in which the reduction in the crystallization temperature is greater than the reduction in the melting temperature, the method including a step of polymerization of the at least one predominant monomer with at least one different minor comonomer polymerized according to the same polymerization process as the at least one predominant monomer, the at least one minor comonomer being chosen from aminocarboxylic acids, diamine/diacid pairs, lactams and/or lactones, and the at least one minor comonomer representing from 0.1% to 20% by weight of the total blend of the monomers(s) and comonomer(s), preferably from 0.5% to 15% by weight of the total blend, preferably from 1% to 10% by weight of the total blend.

Abstract: A method for fabricating a vane for a variable geometry turbocharger (VGT) includes the steps of providing or obtaining a substrate metal in powdered form, mixing a binder with the powdered substrate metal to form a mixture, performing an injection molding process using the mixture to form a green substrate in the shape of the vane, debinding the green substrate to form a brown substrate in the shape of the vane having a porous structure, applying a surface treatment slurry to at least a portion of the brown substrate, and sintering the surface treated brown substrate to form the vane.

Abstract: Disclosed herein is a manufacturing method of a spring pad interposed among a spring used in an automobile suspension system and an upper sheet and a lower sheet for supporting the spring, wherein the spring pad includes an insulator getting in contact with the spring to absorb shock and forming a body of the spring pad, and is manufactured through foam injection molding of the insulator to be lightweight.

Abstract: Provided is a method for manufacturing a fiber reinforced resin molded article capable of effectively suppressing formation of a weld line, and such a manufacturing device thereof. Even with multiple gates (resin inlets), resin is poured from a second gate (second resin inlet) when resin flow is detected at the second gate (second resin inlet), and then the resin poured from a first gate (first resin inlet) and the resin poured from the second gate (second resin inlet) are made smoothly meet.

Abstract: This document discloses a process for manufacturing recyclable injection molded microcellular foams for use in, footwear components, seating components, protective gear components, and watersport accessories. The process includes the steps of providing a thermoplastic polymer which comprises at least one monomer derived from depolymerized post-consumer plastic, inserting a fluid into a barrel of a molding apparatus. The fluid is introduced under temperature and pressure conditions to produce a super critical fluid. The process further includes mixing the thermoplastic polymer and super critical fluid so as to create a single phase solution, and injecting the single phase solution into a mold of an injection molding machine under gas counter pressure. The process further includes foaming the single phase solution by controlling the head and temperature conditions within the mold.

Abstract: A fluid chamber for a shoe may be formed using pressure channels in a forming mold, eliminating the need to insert a nozzle or needles into the chamber for inflation. A fluid chamber so formed may have a smaller seal area than a chamber formed using an inflation needle, making the chamber more visually pleasing. Apparatus and methods for forming a fluid chamber in this fashion are also disclosed.

Abstract: An injection molding method uses a die with a cavity into which molten resin is to be injected to fill the cavity. The die has a shape that causes the molten resin injected into the cavity to branch and merge. The injection molding method includes providing bubbles into the molten resin before the molten resin is injected, generating fine bubbles with the provided bubbles before the molten resin is injected, injecting the molten resin containing the fine bubbles, and bursting the fine bubbles of the injected molten resin containing the fine bubbles in a merging location where the molten resin merges.

Abstract: A reshaping station for reshaping plastic preforms into plastic containers, wherein the reshaping station includes a blow mold for reshaping plastic preforms into plastic containers, the blow mold having a base part, a first lateral part, and a second lateral part is provided. In the assembled state of the blow mold, the base part together with the lateral parts forms a cavity within which the plastic preforms can be expanded in order to form the plastic containers. The reshaping station also includes a support device for supporting the blow mold, and the support device has a first lateral part support and a second lateral part support, the first lateral part being arranged on the first lateral part support and the second lateral part being arranged on the second lateral part support. Also disclosed is a transforming station for transforming plastic parsons into plastic containers.

Abstract: A method for manufacturing a case for a mobile device with a screen, includes using a band having a layer of flexible polymer as an insert mold or in a dual injection process, for applying discrete discontinuous and unconnected damping material on the layer of the flexible polymer of the band. The damping material is softer than the flexible polymer and has a plurality of integrally formed protrusions projecting inwardly from a substantial portion of the inner periphery of the band to engage with the mobile device. The protrusions are arranged such that, in use there is substantially no contact between the band and the device other than through the protrusions.

Abstract: This document discloses a process for manufacturing recyclable injection molded microcellular foams for use in, footwear components, seating components, protective gear components, and watersport accessories. The process includes the steps of providing a thermoplastic polymer which comprises at least one monomer derived from depolymerized post-consumer plastic, inserting a fluid into a barrel of a molding apparatus. The fluid is introduced under temperature and pressure conditions to produce a super critical fluid. The process further includes mixing the thermoplastic polymer and super critical fluid so as to create a single phase solution, and injecting the single phase solution into a mold of an injection molding machine under gas counter pressure. The process further includes foaming the single phase solution by controlling the head and temperature conditions within the mold.

Abstract: A method for producing a vehicle seat member in which a frame member having protrusions is integrally molded to a foamed resin molded body is provided. The method comprises an in-mold foam molding step of placing the frame member in a mold, packing prefoamed resin particles, and molding the foamed resin molded body by in-mold foam molding; and a demolding step of removing the mold to obtain the vehicle seat member, wherein in the in-mold foam molding step, the foamed resin molded body is molded so that (B?A)/B is 13/1000 or less, wherein A is an outer dimension of the foamed resin molded body in the vehicle seat member obtained by the demolding step and B is an inner dimension of the mold corresponding to the outer dimension of the foamed resin molded body.

Abstract: A method of forming a cross-car beam is provided. A composite is melted to form a viscous polymer. The polymer is injected into a mold. Pressurized fluid is injected into the mold to evacuate a portion of the viscous polymer from the mold and to form a channel therethrough. The remaining viscous polymer is cooled within the mold to form a cross-car beam.

Abstract: A process for fabricating a molded carpet laminate includes supporting a carpet layer in a molding tool that has mold dies that define a mold cavity. The mold dies are then moved from an open position to a partially closed position. In the partially closed position, a heated polymer material is injected into the mold cavity. The heated polymer material incompletely fills the mold cavity on the working side of the carpet layer. The mold dies are then moved from the partially closed position to a closed position to spread the heated polymer material and fill the mold cavity on the working side of the carpet layer to form a molded polymer wall. The molded polymer wall adheres to the working side of the carpet layer to form a molded carpet laminate. The mold dies are then moved from the closed position and the molded carpet laminate is cooled.

Abstract: A side sill molding may include a front plate configured to have a length corresponding to a length of a side sill, a top plate configured to be connected to an upper end of the front plate, a bent part configured to be connected to the top plate and have a clip part formed at an inner side thereof, and a rib configured to connect a lower end of the clip part and a preset portion of the front plate.

Abstract: The invention relates to a method for producing a plastic part, especially a plastic part for an automobile, by an injection molding method comprising the steps: Using an injection molding device, plastic in a flowable state is injected into the mold cavity of an injection mold, gas under pressure is injected through a gas inlet opening in the injection mold into the mold cavity of the injection mold by means of a gas injection device so that a gas bubble forms within the still flowable plastic, the plastic is heated and kept flowable, at least in a region neighboring the gas inlet opening while the plastic is hardening in the mold cavity, wherein pressure is exerted on the plastic being kept flowable so that an opening in the plastic in the region of the gas inlet opening is sealed, and the plastic part is removed from the injection mold after reaching a sufficient dimensional stability. In addition, the invention relates to a corresponding device.

Abstract: Methods for producing toothbrush handles having an inner cavity are provided.

Abstract: Methods of producing toothbrush handles having an inner cavity are provided.

Abstract: A personal care article, such as a toothbrush having an inner cavity made in one molding process.

Abstract: A method of producing a composite component, in which a hollow section is expanded, at least in regions, by internal high pressure. In a first step a region of the hollow section is expanded until it comes to lie against an edge region of a cavity of a combined hydroforming and injection mold. In a second step the cavity is filled with an injection molding compound. In a third step the hollow section, at least in regions, is expanded further, which increases the internal high pressure.

Abstract: A method of fabricating a formed structure with expandable polymeric shell microspheres. A first plurality of polymeric shell microspheres are heated from an unexpanded state to an expanded state to form a plurality of expanded microspheres. The plurality of expanded microspheres are mixed with an epoxy resin and a second plurality of unexpanded polymeric shell microspheres. The mixture is formed in a shape to create a preform. The preform is wrapped with fiber tape to create a wrapped preform. The wrapped preform is placed in a mold. The mold is heated and the second plurality of unexpanded microspheres expand from an unexpanded state to an expanded state. The mold is cooled and the formed structure is removed from the mold.

Abstract: The present invention provides apparatus and methods for injection molding polymeric cannulae from liquid polymeric materials. The method includes injecting pressurized liquid polymer into a mold cavity and into an overflow and forming a conduit by forcing pressurized working fluid through the solidifying liquid polymer into the overflow. The invention provides a mold for fluid-assisted injection molding articles from polymeric materials, the mold comprising at least two parts defining a cavity having a conduit portion incorporating a needle portion; a channel for liquid polymer ingress; a channel for pressurized fluid ingress; and an overflow in communication with the conduit portion. The mold may incorporate a plurality of cavities. Preferably the volume of the overflow is equal to or greater than the volume of the conduit portion. Preferably the mold incorporates a separating means for separating the overflow from a cannula portion of an article formed in the mold.

Abstract: The invention relates to a process to produce catalysts by powder injection molding and the catalysts thereof, wherein the catalysts are made by preparing a ceramic formulation with temperature controlled rheological properties comprising catalytic components, heating the powder formulation up to at least the fluid state transition temperature, shaping a sample by injecting the fluid powder formulation into an injection mold followed by cooling the injected powder formulation below the fluid state transition temperature, de-binding the shaped sample, and sintering the shaped sample to form a ceramic catalyst. Alternatively the ceramic structure may be formed initially followed by a coating of the ceramic structure by one or more catalytic compounds.

Abstract: There is provided a method for manufacturing a three-dimensional shaped object, the method comprising the repeated steps of: (i) forming a solidified layer by irradiating a predetermined portion of a powder layer with a light beam, thereby allowing a sintering of the powder in the predetermined portion or a melting and subsequent solidification thereof; and (ii) forming another solidified layer by newly forming a powder layer on the resulting solidified layer, followed by the irradiation of a predetermined portion of the powder layer with the light beam, wherein a part of a surface portion of the three-dimensional shaped object is formed as a low-density solidified portion whose solidified density ranges from 50% to 90% so that an application of pressure can be performed by a gas flowing through the low-density solidified portion.

Abstract: The invention relates to an arrangement (10) for implementing kissing balloons simulating a bifurcated vessel, comprising a first catheter (4) having a first inflatable balloon (6) at or near its distal portion, a second catheter (7) having a second inflatable balloon (7a) at or near its distal portion, wherein the first catheter comprises a holding element (4) provided on the said first balloon (6), the said holding element (4) being adapted for: allowing the distal portion of the second catheter (7) to pass there through; affixing the second catheter (7) in a proximal vicinity to the first catheter (4) so that, in use, respective facing surfaces of the inflated first balloon (6) and the inflated second balloon (7a) touch each other.

Abstract: A plastic injection molding system includes a mold having an interior surface and an exterior surface. The interior surface defines a mold cavity, which is configured in a shape of a part to be formed. A source of plastic, having a known heat distortion temperature, is injected into the mold cavity. At least one infrared heat source is disposed adjacent the mold. The at least one heat source is moveable between a first position disposed away from the interior surface of the mold and a second position where the at least one heat source is in communication with the mold cavity surface. A controller is in communication with the at least one heat source and is configured to heat the mold cavity surface to a predetermined temperature below the heat distortion temperature of the plastic resin.

Abstract: The invention relates to navel thermoplastic (co)polyimides and to the methods of synthesis thereof. The invention specifically relates to semi-aromatic thermoplastic (co)polyimides obtained by polymerisation of at least one aromatic compound comprising two anhydride functions and/or the derivatives thereof, especially carboxylic acid and/or ester, and at least one diamine of formula (I) NH2—R—NH2 wherein R is a saturated aliphatic hydrocarbonated divalent radical, the two amine functions thereof being separated by 4 to 6 carbon atoms, and 1 or 2 hydrogen atoms of the divalent radical being substituted by 1 or 2 methyl and/or ethyl groups. Said (co)polyimides can be transformed into plastic items by various methods such as extrusion, moulding or blowing.

Abstract: A sheet-shaped gas adsorbent according to the present invention is composed of at least a thermoplastic resin and copper ion-exchanged ZSM-5 type zeolite (12), and typically represented by, for example, a single layer sheet-shaped gas adsorbent (10), which is configured of dispersing the copper ion-exchanged ZSM-5 type zeolite (12) in the thermoplastic resin sheet (11). Also, the insulating body according to the present invention comprises a sheet-shaped gas adsorbent having the aforementioned configuration, and typically represented by, for example, a configuration, in which a core member and a sheet-shaped gas adsorbent are covered with a sheath member.

Abstract: The invention relates to a balloon catheter comprising a catheter tube, an inflatable balloon, the ends of which are attached to the catheter tube, and a stent attached around the balloon. The stent extends at least partly along the length of the balloon. In an uninflated state, at least the outside surface of the balloon not covered by the stent is provided with a relief structure which is substantially disappeared in an inflated state of the balloon. The invention also relates to a method for manufacturing such a balloon catheter.

Abstract: A complex-shaped, three-dimensional fiber reinforced composite structure may be formed by using counteracting pressures applied to a structural lay-up of fiber plies. The fiber plies are arranged on a pressurizable member that may become an integral part of the final product, or may be removed before the product is finalized. The pressurizable member may take the form of a hollow blow molded or rotomolded thermoplastic component or a superplastic formed metallic component having an opening such that the pressurizable member may be vented or pressurized and thus expanded against the fiber plies. In addition, a number of the pressurizable members may be joined in fluid communication, where they may each have different configurations, yet be arranged to form a large, complex-shaped lay-up surface for the fiber plies. The arrangement of the fiber plies onto the pressurizable members may produce integral I-Beam stiffeners, ribs, flanges, and other complex shaped structural components.

Abstract: Polymerizable liquid compositions of the polyurethane type, consisting of two components (A) and (B), wherein component (A) contains at least one cyclo-aliphatic diisocyanate monomer or a mixture of one cyclo-aliphatic diisocyanate monomer and a pre-polymer obtained by reaction, in the presence of an acid phosphate ester catalyst, between said cyclo-aliphatic diisocyanate monomer and one or more polyols having two or more hydroxy 1 groups per molecule and a molecular weight ranging from 50 to 2,000 g/mole; the second component (B) contains one or more polyols having a molecular weight ranging from 50 to 2,000 g/mole and a functionality between 2 and 5; in the absence of polyalkoxylated tertiary diamines and organometallic catalysts, said components (A) and (B) being present in a weight ratio which varies from 1:1 to 2:1 and the process for the production of organic glass starting from polymerizable liquid compositions of the polyurethane type.

Abstract: Propylene impact copolymers (ICPs) are provided which comprise: (a) a matrix phase which comprises from 60 to 95 weight % of a polypropylene polymer containing from 0 to 6 mole % of units derived from one or more alpha-olefins other than propylene, and (b) a dispersed phase which comprises from 5 to 40 weight % of a copolymer derived from a first comonomer which can be either propylene or ethylene together with a second alpha-olefin comonomer. The ICP is further characterized by having a beta/alpha ratio less than or equal to 1.1. The ICPs of the present invention are particularly well suited for applications requiring clear, tough polymers such as thin walled injection molded articles for frozen food packaging applications.

Abstract: An apparatus and method for forming cavities in pouches. The packages are used for packaging sterile medical products. The apparatus has a frame and a tongue plate member. A pouch is placed onto the tongue plate member to form a cavity into at least one side of the pouch.

Abstract: A system for self-repairing matrices such as concrete or cementitous matrices, polymeric matrices, and/or fibrous matrices, including laminates thereof The system includes repair agents retained in and/or on vessels, such as hollow fibers, within the matrix. Upon impact, the vessel rupture, releasing the chemicals. For multi-layer laminates, the systems provides a total dynamic energetic circulation system that functions as an in situ fluidic system in at least one layer or area. The energy from the impact ruptures the vessels to release the chemical(s), and mixes the chemical(s) and pushes the chemical(s) and/or resulting compound through the matrix. The repair agents can withstand high temperatures, such as the heat of processing of many laminates, e.g., 250-350° F.

Abstract: The invention is directed to an article made from co-injection molding using gas-assist. The article has an inner material and an outer material. The inner material has a blowing agent uniformly distributed throughout the inner material. The outer material surrounds the inner material. The use of the blowing agent in the inner material produces a repeatable and consistent structure, as the blowing agent is uniformly activated through the product. The use of the gas-assist the heat and pressure associated with the blowing agent is allowed to out gas, thereby insuring that the finished molded chair or other item is aesthetically pleasing while providing increased strength and reduced weight compared to traditional plastic chairs formed with known methods.

Abstract: The invention relates to a method for the production of sandwich components with an open core structure and a cover layer applied to each side, wherein the cover layers are formed with a curable plastic material, and the sandwich component is cured in a closed device under pressure. A charging gas, which may be nitrogen or air, is introduced to the core structure prior to at least partial solidification of the cover layers, wherein a charging gas pressure p Charging gas is selected that is less than or equal to an operating pressure p operating of the closed device in order to, in particular, at least largely prevent the formation of sink marks in the cover layers. Furthermore, the invention relates to a press for implementing the method.

Abstract: A method for constructing layers of polymers through a core of open cell porous material such as metal foams is provided comprising the use of temporary filler material to fill certain volumes within the cellular material. This is followed by filling the remaining volume with polymeric material. The temporary filler material is then removed revealing a layer of a composite of polymer and cellular material as well as a layer of unfilled cellular material. The process can then be repeated to create other layers using same or different polymer.

Abstract: A V-ribbed belt that includes a ribbed surface covered with fabric is provided. The fabric is stretchable in two predetermined directions. A method for manufacturing the V-ribbed belt is also provided. The method includes placing a belt matrix about a mandrel, placing a fabric about the external circumference of the belt matrix which wraps around the mandrel, placing the mandrel inside a shell having a plurality of grooves on the internal circumference, expanding the belt matrix and the fabric toward the internal circumference of the shell and thus pressing the fabric onto the internal circumference having the multi-ribbed structure, and curing the belt matrix with the fabric. The fabric is stretchable to accommodate itself to the multi-ribbed structure.

Abstract: A method for altering the melt characteristics of a polyester, such as the melt strength, the method comprising the step of melt mixing the polyester, with a tetracarboxylic dianhydride; across-linker and chain extender comprising at least two groups being able to react with a carboxy group and a phenolic hydroxyl group; and a poly functional compound comprising at least two groups selected from the group consisting of non-sterically hindered phenolic hydroxyl groups, and carboxy groups.

Abstract: Devices and methods for treating veins and venous conditions, such as chronic cerebrospinal venous insufficiency, are provided. In one aspect, the disclosed subject matter provides an intraluminal scaffold having a generally tubular body with a lumen defined therethrough, the tubular body having a compressed condition for delivery and an expanded condition for implant within a vessel having a distended portion, at least a length of the tubular body configured to form an enlarged portion in the expanded condition to engage a wall of the distended portion of the vessel. Methods for fabricating and using the scaffold, methods for remodeling a vein, and methods of deploying a medical device in a vessel without negatively impacting the function of a valve of the vessel, are also provided.

Abstract: A vibratory sensor is fabricated as a three-dimensional batch-micromachined shell adapted to vibrate and support elastic wave propagation and wave precession in the shell or membrane and at least one driving electrode and preferably a plurality of driving electrodes directly or indirectly coupled to the shell to excite and sustain the elastic waves in the shell. The pattern of elastic waves is determined by the configuration of the driving electrode(s). At least one sensing electrode and preferably a plurality of sensing electrodes are provided to detect the precession of the elastic wave pattern in the shell. The rotation of the shell induces precession of the elastic wave pattern in the shell which is usable to measure the rotation angle or rate of the vibratory sensor.

Abstract: A counterpressure/temperature control apparatus, comprises: a mold, having a runner and an air passage, both coupled to a mold cavity inside the mold; a logic control valve, coupled to the air passage for controlling a high-temperature gas or/and a counterpressure gas to flow in and out the mold cavity; a counterpressure gas supplying device, for supplying the counterpressure gas to the mold cavity through the logic control valve; and a high-temperature gas supplying device, for supplying the high-temperature gas to the mold cavity through the logic control valve; wherein the mold cavity is heated by the high-temperature gas, while subjecting the same to a counterpressure provided from the counterpressure gas supplying device during an injection molding process, and thereby, not only the surface quality of a product resulting from the injection molding process can be improved, but also the size of foams and the distribution evenness thereof are enhanced.

Abstract: A method for blow molding containers having cross-sections of a non-circular shape from preforms, in which a temperature profile varying at least in the circumferential direction of the preform is produced by means of at least one heat transfer element, for which purpose the preform and at least the heat transfer element are oriented toward one another by a relative rotational movement in the circumferential direction of the preform, the heat transfer element is rotated relative to the stationary preform about a heat transfer element axis during the relative rotational movement. Further, a device for blow molding such containers where the heat transfer element and the holder are rotatable about a heat transfer element axis and are coupled with a rotational drive.

Abstract: A method of forming a fuel tank may include providing a cavity for forming fuel tanks; inserting one or more elongated elements within the cavity; placing a parison in the cavity proximate to the elongated elements; and exerting fluid pressure on the parison thereby deforming the parison and engaging the elongated elements with a surface of the parison.

Abstract: The present invention relates to a cellulose carbamate spinning solution, the cellulose carbamate being dissolved in at least one ionic liquid. Furthermore, the invention relates to a method for the production of blown films in which a solution of cellulose carbamate in an ionic liquid is extruded into a coagulation bath, and also to the films produced with the method and the use thereof.

Abstract: A polyetherimide composition comprising a polyetherimide manufactured by reaction of an alkali metal salt of a dihydroxy aromatic compound with a bis(halophthalimide) composition comprising, based on the weight of the bis(halophthalimide) composition, at least 15 wt. % of a 3,3?-bis(halophthalimide) of the formula from more than 17 wt. % to less than 85 wt. % of a 4,3?-bis(halophthalimide) of the formula from more than 0 to less than 27 wt.