Abstract: Molded splitter structures and systems and methods for manufacturing molded splitter structures are disclosed.

Abstract: The invention relates to a cartridge housing for forming a cartridge capable of measuring an analyte or property of a liquid sample. The housing comprising a first substantially rigid zone, a second substantially flexible zone, a hinge region, and at least one sensor recess containing a sensor. The housing is foldable about said hinge region to form a cartridge having a conduit over at least a portion of said sensor. The invention also relates to methods for forming such cartridges and to various features of such cartridges.

Abstract: A guide anchor for a seat belt, and a method for manufacturing the same are disclosed. The guide anchor comprises a guide plate having a latching hole and a slide guide hole formed therein, a guide piece engaged with a lower circumference of the slide guide hole, and a first molded part for coupling the guide plate and the guide piece. The guide piece comprises a cover, and a second molded part injected into a lower surface of the cover. The second molded part has a recess formed in a longitudinal direction at a lower surface. The cover has cover eaves extending from a lower portion.

Abstract: The present invention is concerned with a hinge (50) and a method of molding the hinge. The hinge comprises: a first part (52) and a second part (54) connected together during moulding to allow relative pivotal movement between the parts. The second part is molded over the first part after molding of the first part to form an interface (68) between the second part and the first part at which relative pivotal movement is allowed. After moulding of the second part the second part shrinks in a controlled manner to provide a predetermined frictional force at the interface between the first part and the second part in order to resist said relative pivotal movement.

Abstract: A method of producing a throttle assembly. The method including inserting a first core into a mold portion to form a first throttle component cavity between the first core and the mold portion, providing a first thermoset plastic material into the first throttle component cavity to form a first throttle component, removing the first core from the mold portion while maintaining the first throttle component positioned within the mold portion, inserting a second core into the mold portion to form a second throttle component cavity between the mold portion, the first throttle component, and the second core, providing a second thermoset plastic material into the second throttle component cavity to form a second throttle component, removing the second core from the mold portion, removing the first throttle component and the second throttle component from the mold portion, and separating the first throttle component from the second throttle component.

Abstract: Method and apparatus for molding and assembling a composite part assembly in, for example, a plastic injection-molding machine. Complementary mold portions associated with a mold plate and rotatable turret form plural parts. Assembly apparatus associated with the turret assembles the plural parts into an assembly. A further turret may be provided to add a complementary part to the assembly to make a final assembly. The method includes manufacture of composite part assemblies and final assemblies.

Abstract: Apparatus and method whereby coinjection molding shooting pot actuation structure is configured to be installed in a coinjection hot runner with a coinjection nozzle, the coinjection nozzle having at least two melt channels ending at the same gate. The shooting pot is preferably disposed in one of a mold cavity half and a mold core half. A shooting pot piston is configured to discharge a melt from the shooting pot. A transmission structure is configured to (i) extend through one of the mold cavity half and the mold core half, and (ii) to transmit a force to the shooting pot piston. Actuation structure is disposed on the opposite side of the mold cavity half from the coinjection hot runner, and is configured to provide the force to the transmission structure. This configuration conserves space in the mold.

Abstract: An RTM molding method includes disposing a reinforcing fiber substrate in a cavity of a mold consisting of a plurality of dies, clamping the mold, and thereafter injecting resin to complete molding, characterized in that divided areas with respect to the surface direction of the reinforcing fiber substrate are assumed, each divided area is one in which injected resin expands over the entire surface in the area and can be substantially uniformly impregnated in the thickness direction of the substrate, and resin introducing paths are formed for respective assumed divided areas for introducing the injected resin into the respective divided areas; and an RTM molding device. When a relatively large molded product is to be molded, a molding step from resin injection to impregnating/curing can be implemented at high speed without generating a non-resin-flowing area, thereby enabling a high-quality molded product to be produced free from voids, etc.

Abstract: A system and method for operating an injection system to create a reduced density polymeric component uses a resin/blowing agent mixture, an injection molding machine having an injection molding screw positioned in a screw section, accumulators, a hydraulic pump, multiple molds, and a cooling system. Coolant is directed into each mold. The injection molding screw is rotated moving the mixture proximate to a receiving portion of the screw section. The injection molding screw is incrementally displaced to one of a plurality of successive injection positions each injecting a portion of the mixture into one of the molds by operating the hydraulic pump and discharging the accumulators. The accumulators are recharged after each injection molding screw displacement using the hydraulic pump. The injection molding screw is displaced and the accumulators recharged for each of the successive injection positions, each defining a stage for filling the molds in a single operating cycle of the injection system.

Abstract: A resin gear has a concave portion formed on a gear body at a position radially inward of a boundary region between a toothed portion and a non-toothed portion. During a molding process, a welded portion is formed at the non-toothed portion by merger of flow of the molten resin along a first path and flow of the molten resin along a second path. The first path detours the concave portion and passes through the side of the toothed portion, and the second path detours the concave portion and passes through the side of the non-toothed portion.

Abstract: Apparatus for controlling the rate of flow of fluid material through an injection molding flow channel leading to a mold cavity, the apparatus comprising: a pin having a longitudinal length being adapted for back and forth axial movement through the flow channel; the pin having a protrusion at a selected position along its length, the protrusion having an upstream end and a downstream end and a maximum diameter circumferential surface intermediate the upstream and downstream ends; the channel having an interior surface area portion which is complementary to the maximum diameter circumferential surface of the protrusion of the pin; and the pin being slidable to a position within the channel such that the maximum diameter circumferential surface of the protrusion forms a seal with the complementary interior surface portion of the channel to stop flow of the fluid material.

Abstract: The present invention is directed to improved processes for making plastic articles, and articles made therefrom. In a broad aspect, the invention is directed to improved processes and articles made therefrom, that include the steps of providing as separate materials a first material that includes a thermoplastic polyolefin, a second material including an admixture of a particulated filler and a second thermoplastic polyolefin, and a third material that includes an elastomer; applying a shear force to the first, second and third materials, while the materials are at an elevated temperature for blending the materials to form a molten blend; shaping the molten blend and solidifying the molten blend.

Abstract: A mold and a method for producing two-color injection-molded parts involves simultaneous injection of two kinds of molding material, in which a pressure difference between two kinds of molding materials is induced so that one of the molding materials is infiltrated into and bonded to the other molding material during solidification. The method for producing two-color injection-molded parts may include simultaneously injecting a first material and a second material to a first gate and a second gate to be filled in a first cavity and a second cavity, and closing the second gate such that the first molding material, which is not solidified, pushes a slide mold provided between a first mold block and a second mold block using a holing pressure of the first gate and is infiltrated into an unsolidified layer of the second molding material and solidified.

Abstract: In a manufacturing method of a valve unit, which includes a valve having a rotatable shaft that is rotatably supported by a housing through a bearing to open and close a fluid passage defined in the housing, the housing and the valve are simultaneously molded in a mold assembly. The bearing is installed between the housing and the rotatable shaft during execution of the molding of the housing and the valve.

Abstract: The method employs a stationary mold having depositing recesses equipped in its inside with a deposition element such as a target electrode, and movable molds made slidable. A primary molding is performed to form a body portion and a cover member to have joint portions around their opening. The body portion left in the vertically sliding mold is deposited after it was densely covered with the depositing recesses. Next, the deposited body portion and the cover member, as left in the molds, are registered and mold clamped, and the molten metal is injected to integrated the joint portions.

Abstract: A molding process for forming a wet shaving razor including the step of placing one or more of the blades into a first mold cavity. A first generally rigid polymer is injected into the first mold cavity to form a housing and to secure the blades. A second generally rigid polymer is injected into a second mold cavity to form a handle that is adjacent to and spaced apart from the housing of the first mold cavity. A generally flexible polymer is injected into a third mold cavity to interconnect the housing and the handle, wherein the generally flexible polymer forms a gripping portion on the handle and a resilient skin contacting element between the housing and the handle.

Abstract: In a method for producing a coated composite component, an injection-molded part is produced in a first cycle by introducing a melt into the cavity of a first mold. A polyurethane layer is then applied to the cavity surface of an open polyurethane mold half. The mold half with the injection molded part produced in the first cycle is associated with the polyurethane mold half, and the so formed second mold is closed. The polyurethane layer is pressed or embossed onto the injection-molded part in the second mold, and the coated injection-molded part is removed once the second mold has been opened.

Abstract: Provided is an injection mold which can reduce the amount of resin that is separated from injection-molded parts and then thrown away. The injection mold includes for an embodiment an extension cylinder coupled to an upper clamp plate and having a nozzle at an end thereof; a nozzle positioner disposed under the nozzle, the nozzle positioner having a nozzle insertion groove adapted to receive the nozzle; a gate-lock-pin holder disposed under the extension cylinder and the nozzle positioner, comprising a gate lock pin which has a first end coupled to a gate molded part and a second end coupled to the gate-lock-pin holder, and adapted to separate the gate molded part from an injection-molded part; a gate stripper plate disposed under the gate-lock-pin holder and adapted to separate the gate molded part from the nozzle; and a cavity plate and a core plate disposed under the gate stripper plate and having a cavity which is shaped like the injection-molded part.

Abstract: A method for the production of a steering wheel with a multi-colored foam surrounding includes the following steps: formation of a first foam surrounding (12) by surrounding a steering wheel skeleton in a first mold with a first foam, the first foam in solidified state having a first color; covering of particular regions of the first foam surrounding (12); and formation of a second foam surrounding (14) by introducing a second foam into a second mold, the second foam in solidified state having a second color different from the first color.

Abstract: The invention relates to an injection-molding tool and to a process for producing pin-shaped blanks as end products, a two-dimensional skin cavity and blank cavities connected to said skin cavity being provided at a runner, in order to be able to form a molding, including a sprue, a skin and the blanks formed on said skin via defined predetermined breaking points. In this case, the injection-molding tool makes it possible before and at the beginning of the injecting operation to create a negative pressure in the cavities and makes it easier after the molding material has solidified to demold the molding obtained by introduced compressed air.

Abstract: A nozzle for an injection molding machine is disclosed. The nozzle includes a nozzle body, an inner nozzle, and an outer nozzle. The nozzle defines two independent flow paths therethrough. The nozzle can simultaneously discharge two materials. A method of using the nozzle and a resulting golf ball product are also disclosed.

Abstract: A method of moulding and a moulding installation is disclosed. The installation comprises a compounder (16), a flow path (26) from the compounder to a vessel (34) in which the mouldable material emerging from the compounder is accumulated, and further flow paths (28) from the vessel (34) to a number of moulders (30) each of which is associated with a mould (32). The moulders take charges of mouldable material on a cyclical basis.

Abstract: An injection mold has a plurality of cavities and a runner system for injecting material into the cavities. The runner system includes a main-runner and a sub-runner. The sub-runner interconnects the main-runner and the cavities. The sub-runner includes a first runner and a pair of second runners. The first runner connects the main-runner, and the second runners respectively connects ends of the first runner. A buffer rejoin is formed around a joint of the first runner and each second runner for mixing material when the material flows from the first runner into the second runners to make the material have a symmetric speed distribution in the second runners.

Abstract: A method for making a housing, comprising steps of: providing an mold, the mold including a first female mold and a second female mold setting beside the first female mold, a male mold matingly engageable with the first female mold and the second female mold; the first female mold mating the male mold to form a first mold chamber; injecting molten material into the first mold chamber to form a main body on the male mold; setting a decorative film in the second female mold; rotating the male mold into contact with the second female mold to form a second mold chamber; injecting some transparent resin material into the second mold chamber to form a transparent plate.

Abstract: Preform for the blow-molding of a container comprising a neck section (10), an adjoining wall section (20) having a substantially cylindrical shape, with in between a neck ring (12) as a transition region, and further a bottom section (30) which forms the base of the preform, which is composed of a multilayer structure consisting in two surface layers, the one of which (1) is directed outwardly respective the preform and wherein the other (3) is directed inwardly with respect thereto, with in between an intermediate layer (2) which forms a core layer, wherein both surface layers (1, 3) are composed of a primary material and wherein said intermediate layer (2) is composed of a secondary material, remarkable in that the center surface of said intermediate layer (2) is directed outwardly, toward the outer surface, with respect to the center surface of said wall section (20) and in that said primary and secondary materials respectively are mutually different.

Abstract: In accordance with the present invention, there is provided a method of forming a molded plastic article (2) having a second surface (56) with molded extensions (59), e.g., structural supports, such as ribs, extending therefrom, and a first surface (69) that is substantially free of sink mark defects. The method involves forming, from a first plastic material, a first molded section (50) having at least one molded extension (59) extending from the second surface (56) thereof. The molded extension (59) is formed in a mold recess (23) having a reversibly positionable slide (14) therein. After formation of the first molded section (50), the slide (14) is retracted to a second slide position (B) thus forming within the molded extension a retainer cavity (74) that is in fluid communication with an aperture (71) in the first surface (53) of the first molded section (50).

Abstract: A cleaning sheet (29) is formed with a trough-hole (29a) at a portion corresponding to a cavity of a mold along with a slit (29b) or a flow cavity cut (29c) at every corner at an outer periphery of the through-hole (29a) and is placed between a first mold half and a second mold half of the mold to clean the inside of the mold, thereby improving the cleaning effect of the mold.

Abstract: A method of injection moulding a sole or a part of the sole of an article of footwear from an expandable material is disclosed. The method is characterised by forming a mould chamber that has at least a main sub-chamber and at least one other sub-chamber and injecting controlled amounts of the expandable material into the sub-chambers so that the sole is formed with different densities of the same expanded material in the sub-chambers.

Abstract: The invention relates to a method for manufacturing at least partly plastic vehicle parts in a mold with at least one mold cavity, comprising the steps of: at least partly closing the mold, wherein the at least one mold cavity is brought in a first position by means of at least one movable wall part of the at least one mold cavity; introducing plastic into the at least one mold cavity; upon complete closure of the mold and/or movement of the at least one movable wall part, bringing the at least one mold cavity in a second position, the at least one mold cavity in the second position having a different volume than in the first position; all this in such a manner that by bringing the at least one mold cavity from the first into the second position, the plastic fills the respective mold cavity completely.

Abstract: In a method for producing flat molded plastic parts, for example panes, a mold is first filled completely with plastic material and additional plastic material is subsequently added, in such a way that the mold distends in a defined manner in opposition to the clamping force. The distension compensates for material shrinkage during a subsequent cooling operation, thus preventing sink marks and permitting the production of, for example, panes of high optical quality.

Abstract: Method whereby coinjection molding shooting pot actuation structure is configured to be installed in a coinjection hot runner with a coinjection nozzle, the coinjection nozzle having at least two melt channels ending at the same gate. The shooting pot is preferably disposed in one of a mold cavity half and a mold core half. A shooting pot piston is configured to discharge a melt from the shooting pot. A transmission structure is configured to (i) extend through one of the mold cavity half and the mold core half, and (ii) to transmit a force to the shooting pot piston. Actuation structure is disposed on the opposite side of the mold cavity half from the coinjection hot runner, and is configured to provide the force to the transmission structure. This configuration conserves space in the mold.

Abstract: First and second semi-finished molded articles and a third semi-finished molded article are molded simultaneously so as to have joint end faces by using a slide die, a fixed die, and first and second slide cores fitted to the fixed die. The slide die with the third semi-finished molded article remaining thereon is moved toward the first and second slide cores, and their respective joint end faces are registered. Heating surfaces are inserted between the joint end faces. After melting the joint end faces, the heating surfaces are retracted, and the molding device is closed to weld the joint end faces.

Abstract: In a method of operating an injection molding machine of a type having an injection plunger for pushing melt from an injection space anteriorly of an injection plunger into an injection mold, a plasticizing screw of an extruder is continuously operated to continuously feed melt through a melt channel into the injection space. A passage through the melt channel is closed to allow backup of melt backwards into the extruder, and the injection plunger is moved forward to inject a shot amount from the injection space into the injection mold.

Abstract: A modular mold system includes a hot half and a cold half. The hot half has a heated distributor assembly to receive molding material from an injection molding machine. The distributor assembly has a forward side that is opposite a side of the distributor assembly that faces the injection molding machine. A plurality of heated multi-nozzle units may also be provided. Each multi-nozzle unit has a manifold and a plurality of forward-extending nozzles. Each multi-nozzle unit is individually forwardly removably fastened to the forward side of the distributor assembly and removable from the distributor assembly while the distributor assembly is fastened to the first platen. The cold half includes a mounting plate and a plurality of cold-side units associated with the multi-nozzle units. Each cold-side unit is removably fastened to the mounting plate and engagable with one of the multi-nozzle units to define the one or more mold cavities.

Abstract: A polarizing plastic lens comprising a polarizing film with low tendency to detachment from an optical resin layer. There is provided polarizing plastic lens comprising polarizing film constituted of a polyvinyl alcohol resin. Two optical resin layers of different thicknesses may be disposed on both surfaces of the polarizing film. The optical resin layers are formed by polymerizing a polymerization raw material composition in contact with the polarizing film. The polymerization raw material composition contains as one main component an isocyanated or isothiocyanated compound. The iscocyanate or isothiocyanate functional group reacts with the hydroxyl of polyvinyl alcohol resin of polarizing film to thereby form an urethane bond or thiourethane bond, so that the optical resin layers are strongly unified with the polarizing film.

Abstract: An exemplary optical plate includes a first transparent layer, a second transparent layer and a light diffusion layer. The light diffusion layer is between the first and second transparent layers. The light diffusion layer, the first and second transparent layers are integrally formed. The light diffusion layer includes a transparent matrix resin and a plurality of diffusion particles dispersed in the transparent matrix resin. Both the first and second transparent layers define a plurality of spherical protrusions on an outer surface thereof distalmost from the light diffusion layer respectively. A method for making the optical plate is also provided. In addition, a direct type backlight module using the optical plate is also provided.

Abstract: Composite elements having the following layer structure: (i) from 2 to 20 mm of metal, plastic or wood, (ii) from 10 to 300 mm of polyisocyanate polyadducts, (iii) from 2 to 20 mm of metal, plastic or wood, the layer (ii) containing prefabricated polyisocyanate polyadducts (x) which are adhesively bonded by polyisocyanate polyadducts (xx) to the layers (i) and (iii), and the polyisocyanate polyadducts (x) being pieces having a volume of from 4 to 1 000 cm3.

Abstract: A method of selectively applying a pattern to a molded part comprises the steps of forming a mold (8); molding a three-dimensional object (10) having at least one face (12) in the mold, the three-dimensional object (10) being formed of a first material. Masking the at least the one face (12) of the three-dimensional object (10) with a mask (14) comprising a reverse image of a desired pattern while the three-dimensional object is still in the mold. Overmolding the three-dimensional object (10) with a second material to provide the reverse image. Removing the three-dimensional object (10) from the mold, coating at least the one face 12 of the three-dimensional object with a third material; and removing the second material to reveal the desired image.

Abstract: A co-injection process is provided for fabricating improved multi-layer containers, including but not limited to blood collection tubes, evacuated blood collection tubes, culture bottles, centrifuges tubes, and syringe barrels. The container includes a tube (10) having a bottom wall (12) and a side wall (14) with an open end (18). The container can be provided with a stopper having an upper portion (22) and a skirt with an outside portion (30), a well (34) and a cavity (36). The tube and stopper assembly can be used for medical purposes including containing a blood sample within an enclosed interior space (40).

Abstract: A multi-component lacrosse stick head, made of at least two materials, including a base lacrosse head structure of one material and one or more overlays made of one or more other materials strategically located on the base structure. The base structure and overlays provide particular performance characteristics for the lacrosse head. An embodiment of the invention includes a base lacrosse head structure, and at least one of a ball stop overlay, a sidewall overlay, an edge overlay, a thread opening overlay, and a scoop overlay. The overlays are affixed to the base lacrosse head structure by, for example, insert molding, over molding, reaction injection molding, spray application, rotational molding, dual extrusion, casting, or an interference fit.

Abstract: A multi-layered plastic body for containing, storing or conducting a medical, diagnostic, pharmaceutical, cosmetic or other product, the plastic body including a first layer made of a stress fracture resistant plastic material, and at least a second layer adjacent to the first layer and made of a plastic material exhibiting a lower resistance to stress fractures than the first plastic material. The invention encompasses a suitable method of making the body.

Abstract: A two-color molding method with a short cycle time and a multicolor molding method including that two-color molding method, whereby, by performing an elastomer molding step using a time Z from a time t2 to t7 in the range of the time Y needed for the shaped article takeout step (A and B) and mold closing step (C) in the time t1 to t9, it becomes possible to effectively use the time of the shaped article takeout step (A and B) and mold closing step (C) which could not be utilized at all for the molding process in the past for the molding process, whereby the cycle molding time X can be shortened.

Abstract: A cascade injection molding system includes a plurality of nozzles each having a valve rod driven by a piston cylinder drive, for injecting melt into the mold cavity. A throttle check valve is located within a pressurizing medium line to regulate nozzle operation. The method includes injecting the melt at feed orifice using a needle valve-controlled needle valve nozzle associated with each feed orifice into the cavity of the molding tool. The needle valve nozzles is opened at different times by controlling the opening speed and the injection pressure at the feed orifices, via the corresponding piston-cylinder drives for the needle valve nozzles. The pressurizing medium discharge from the piston cylinder is throttled for at least one of the piston-cylinder drives when the nozzle is opened.

Abstract: Molding apparatus (1) for molding of materials consisting of at least two components, in particular for molding lipstick leads with at least one mold (2) in which the material to be molded may be poured and with a core (3) which may be inserted into and extracted out of the at least one mold (2), wherein the at least one core (3) has a modifiable outer surface, as well as a corresponding method.

Abstract: A process producing an in-mold coated molded product. The process molds a thermoplastic resin material under a mold-clamping pressure in a mold including a fixed mold part and a movable mold part each heated at a predetermined temperature, separates the fixed mold part and the movable mold part when the molded material surface is solidified such that it is durable to a pressure of injection and flow of a coating agent, and injects the coating agent containing a thermosetting resin material between an inner surface of the mold and the molded product obtained. The process also coats the molded product surface with the coating agent as the mold is re-clamped after injecting the coating agent, takes out the molded product coated with the coating agent when the coating agent is cured such that it is neither peeled off nor cracked by opening the mold, and re-heats the molded product after taking it out.

Abstract: A method for manufacturing a throttle valve unit having a housing part and a valve flap part that can move in relation to it includes the steps of injection molding the housing part of a first plastic material in a first cavity, transferring the molded housing part to a second cavity spatially decoupled from the first cavity, and injection molding the movable valve flap part out of a second plastic material in a second mold cavity inside the molded housing part. Before the molded housing part is transferred to the second cavity, it is subjected to an intermediate treatment in order to influence the shrinkage behavior, thereby selectively adjusting the gap geometries between the parts.

Abstract: Methods are disclosed for designing improved flexible tubes and production methods which have improved flexibility and resistance to collapsing under load or during bending. Methods for injection molding a flexible tube (2) and providing at least one support member (4) that is arranged to provide improved lateral support to reduce lateral collapsing of the flexible tube (2). Methods for using and fabricating flexible tubes (2) are also provided for various shapes of support members (4) including annular ribs, helical ribs, spaced apart coils (128), narrow ribs, wide supports, as well as for various cross sectional shapes of flexible tubes (2), including streamlined elongated hydrofoil shaped cross sectional shapes relative to the longitudinal axis of flex tube (2).

Abstract: The device includes a membrane slidably mounted in a metering chamber, the membrane including a first sealing element forming a check valve, and a second sealing element enabling the membrane to slide in a leaktight manner relative to the metering chamber. The first and second sealing elements are made of a material that is relatively flexible, the membrane also including a rigid portion made of a material that is more rigid than the material of the first and second sealing elements.

Abstract: The present invention relates to an injection molding process that improves recovery limited productivity. The present invention advantageously applies pressurized fluid within the nozzle of an injection molding machine to improve the machine's productivity. In accordance with one aspect of the invention, an existing or new injection molding machine is outfitted with a pressurized fluid system at the nozzle between the plasticizer barrel and the melt manifold. The use of a specialized nozzle and isolation valve allows the pressurized fluid to displace material within the nozzle and runner, ensuring the proper pressure is applied to the plastic resin within the mold during pack and hold while the plasticizing screw can begin its recovery cycle. Finally, the pressurized fluid can be evacuated from the nozzle melt stream area either via the fluid entrance or a fluid pin.

Abstract: There are provided a composition for mobile phone cases and a method of manufacturing a mobile phone case using the same. The composition comprises 70 to 97% by weight of a thermoplastic resin selected from the group consisting of polycarbonate (PC), acrylonitrile-butadiene-styrene (ABS), polybutyrene terephtalate (PBT), acrylic resin and combinations thereof; and 3 to 30% by weight of ferrite selected from the group consisting of nickel-zinc ferrite, manganese-magnesium ferrite, manganese-zinc ferrite, copper-zinc ferrite, manganese-magnesium-aluminum ferrite, yttrium iron garnet (YIG) ferrite and combinations thereof, wherein the composition is a pellet resin formed by extruding the thermoplastic resin and the ferrite at a high temperature of 160 to 290° C.