Abstract: A process for producing a molding having an embedded member which comprises: a first step in which a mold (1) having pins (3) which extend from the outside to the inside of the mold and can be withdrawn outward is heated to a given temperature; a second step in which a member (2) to be embedded is held in a given position within the mold by supporting the member, including an upper part thereof, with the pins (3); a third step in which a thermoplastic resin is packed through a gate (1d) first into that part of the cavity of the mold (1) which is located under the member to be embedded to thereby cause the thermoplastic resin to press the member against the pin (3) located in an upper part of the mold; a fourth step in which the thermoplastic resin is packed into the remaining part of the cavity of the mold (1); and a fifth step in which the pins (3) are withdrawn successively from the lower side of the mold before cooling to a temperature at which the thermoplastic resin solidifies and loses its flowability.

Abstract: A method and injection machine for producing a hollow product, such as a urisheath, use of the method for producing a urisheath as well as the urisheath. The machine comprises an annular cavity for receiving a silicone material. The material is injected in a cold state via a coldrun nozzle (20) and cured by heat in the cavity. The cavity has a narrow cross-sectional area over a substantial portion of the cavity and the cavity is connected to a venting area (13). The cavity has an annular enlarged portion (18) at the proximal portion of the cavity, arranged adjacent said inlet (24) and a groove (14) at the distal portion of the cavity. The narrow cross-sectional area has a decreasing radial dimension towards the distal portion of the cavity. The surface of the cavity is grit blasted.

Abstract: A mold temperature adjusting apparatus is provided in which change-over timing of high temperature medium and low temperature medium is adjusted by a heat transmission delay in heating and cooling of a mold being taken into consideration. The mold temperature adjusting apparatus comprises a high temperature fluid tank and a low temperature fluid tank, a high temperature fluid supply system and a high temperature fluid return system between the mold and the high temperature fluid tank, a low temperature fluid supply system and a low temperature fluid return system between the mold and the low temperature fluid tank, a high temperature fluid by-pass system and a low temperature fluid by-pass system, a heat recovery tank connected to the high temperature fluid tank and a pressure adjusting device.

Abstract: Processes for preparation of seals and gaskets using cure-in-place techniques that incorporate a molding step, which is preferably an injection molding step, are provided. The processes are useful for preparing sealing assemblies that comprise compositions that are curable by UV radiation and that are adhered to a support member.

Abstract: An epoxy resin composition comprises (a) an epoxy resin, (b) an anionic polymerization initiator and (c) from 1 to 30 parts by weight per 100 parts by weight of epoxy resin (a) of an aromatic ring-containing proton donor of a polyhydric alcohol and/or a polymercaptan.

Abstract: Provided are a resin composition in which a moldability is improved at a temperature at which a polylactic acid resin is crystallized by adding both a carboxylic acid amide or a carboxylic acid ester which has at least one polar group in a molecule and a layered silicate to the polylactic acid resin, and a molded article.

Abstract: The present invention provides a method of manufacturing golf balls having a rubber core of at least one layer and a cover of at least one layer which encloses the rubber core, which method includes the step of molding at least one layer of the rubber core by directly injecting a rubber composition into a spherical cavity and vulcanizing the injected composition. This process enables the sphericity of the rubber core to be enhanced, the rubber materials to be used without waste, and balls of an excellent scuff resistance to be obtained.

Abstract: A hot-air supply structure (1) comprises a hot air generator (20) and a housing (15) formed in the neighborhood of a hot-air inlet (81) of a molded component M in a die (10). A nozzle (21) is formed at the forward end of the hot-air generator, and an ejection port (211b) is formed on the side wall portion of the forward end needle unit (211) of the nozzle. The housing includes a support hole (151) in the nozzle, a relief hole (152), a flow path communication passage (153) and a bypass (154). The ejection port is movable between a first position to discharge the cool or warm air into the atmosphere through the bypass from the relief hole and a second position to introduce hot air into the flow path (8) of the molded component through the inlet (81) and the passage (153).

Abstract: In a molding method and a mold therefore, a fluid flows through an ejector pin including a front end surface movable with respect to the mold to release or remove from the mold at least a part of a product made from a melted material so that the front end surface of the ejector pin movable with respect to the mold is cooled by the fluid.

Abstract: The change-over device changes over, to one of three passages, between the runner groove connected to the injection nozzle and the communicating groove communicated with the mold side passage. At the first position, the second passage 372 is communicated with the communicating groove and the temperature of a flow of hot air is measured by the thermocouple and the flow is discharged into the atmosphere. At the second position, the runner groove and the communicating groove are communicated with each other when the runner groove and the communicating groove are open to the second passage 371 and resin material is injected into the mold. At the third position, the material in the injection passage and the material in the runner groove are deposited to each other when the injection passage is shut off from the communicating passage and the third passage 374 is communicated with the runner groove.

Abstract: Tools of plastics processing machines are cooled over their surface and/or at particular points as soon as compound supply is finished. Heat is thus suitably withdrawn from the shaped compound, ensuring the fastest possible cooling and shortening cycle times. The invention relates to a closed, coolant-filled cooling system for tools of plastics processing machines having at least one compressor, a supply pipe, a tool region to be cooled and a discharge pipe, the supply pipe being connected to the outlet of the compressor and the discharge pipe being connected to the inlet of the compressor, while at least one open end of the supply pipe plunges into at least one bore arranged in the tool region to be cooled, and an open end of the discharge pipe is sealed to this bore. The supply pipe and the discharge pipe may be combined in a coaxial pipe with the supply pipe arranged in the centre and the discharge pipe enveloping the supply pipe.

Abstract: A method for forming shaped parts from polycarbonate that results in parts having substantially increased chemical resistance. The method includes providing a mold having at least one cavity, such that the mold has a means for cooling the area adjacent to the cavity. Molten polycarbonate is then mixed with a supercritical fluid to form a mixture. This mixture is injected into the mold while using the cooling means to cool the cavity so that its temperature is no more than 150 degrees F. Further improvement in chemical resistance is achieved when fluid pressure is held on the cooling part for a short period.

Abstract: A poly-(?-hydroxy acid) composition including a poly-(?-hydroxy acid), and an amino acid, and a method of producing a molded article using the poly-(?-hydroxy acid) composition.

Abstract: A temperature control system for a mold includes a circulation pipe provided in the mold, a heating water circulation section to provide heating water to the circulation pipe to pre-heat the mold, a cooling water circulation section to provide cooling water to the circulation pipe to cool the mold, and a compressed air circulation section to provide compressed air to the circulation pipe to eject remaining heating water or cooling water within the circulation pipe. The compressed air circulation section is adapted to supply the compressed air to the circulation pipe to eject remaining fluid within the circulation pipe before heating water or cooling water is provided to the circulation pipe.

Abstract: Disclosed is: (i) a thermal management system of a molding system, (ii) a molding system having a thermal management system, and/or (iii) a method of a molding system having a thermal management system, amongst other things.

Abstract: A mold temperature adjusting apparatus is provided in which change-over timing of high temperature medium and low temperature medium is adjusted by a heat transmission delay in heating and cooling of a mold being taken into consideration, so that a cycle time of molding steps is shortened, a temperature deflection from a set temperature of the high temperature and low temperature medium is reduced, an energy loss is reduced and an optimal mold temperature for an injection step can be obtained.

Abstract: An injection-moulding tool for the production of a mould in disc form, in particular in the form of information carriers such as CDs and/or DVDs, wherein the injection-moulding tool comprises a first and a second mirror block, wherein the first and second mirror blocks lie opposite each other and are movable in relation to each other for the opening and closing of the mould, and means for actively controlling the temperature of at least one of the first and second mirror blocks. A method for producing mouldings in disc form utilizing the injection-moulding tool is also disclosed.

Abstract: An injection mold and process are arranged to produce very thin articles, such as data discs. Molten plastic is injected into mold parts forming a thin cavity (17), in a cyclic molding process wherein the mold parts are subjected to a substantially constant temperature stimulus and rise and fall in temperature during injection and cooling of the molten plastic. Temperature boosting thermal insulation layers (11, 21) are placed along at least certain parts of the molding cavity surface. This elevates the temperature of the molted melt material for a time during injection. According to a calculated relationship, this thermal insulation is sized to permit the thin mold cavity to fill before heat transfer to the mold parts solidifies the molding material and blocks further flow. The temperature boosters can be contoured in thickness.

Abstract: A resin molding device, resin molding method and resin molded product capable of guiding a sink to an optional position to perform a precise molding. A resin molding metal mold includes a gate formed in the central part of a cavity, a stepped part increasing the opening diameter of the cavity in the circumferential direction orthogonal to the flowing direction of a molten resin introduced into the cavity from the gate, and a fine outside air inlet part circumferentially formed on the outer part from the stepped part. The outside air inlet part is formed of a porous material and allowed to communicate with the outside of the resin molding metal mold through a communicating passage.

Abstract: A method and apparatus for controlling the temperature of an injection mold passes pressurized air contained in an air supply tube through an orifice into an exhaust channel, wherein the pressure of the air in the exhaust channel is lower than the pressure of the air in the air supply tube. As the pressurized air is released through the orifice, cooling is produced that can be applied to a portion of an injection mold where cooling is desired, in order to control the temperature of that portion of the injection mold.

Abstract: A method of molding reinforced polymer compositions using a molding machine with a tapered bore is provided. The method has particular application in molding polymer that is reinforced with particles having an aspect ratio that is greater than 1:1. The plunger machine used in the method includes a barrel housing with a smooth walled barrel with longitudinal fins projecting inwardly towards the center of the bore that defines a main melt chamber. A plunger housing, having a plunger bore, defines an initial melt chamber and is in communication with the main melt chamber. A plunger resides in the plunger bore and is reciprocatable therein. The barrel bore is continuously inwardly tapered and cooperates with the longitudinal fins to provide a shortened melt period and a smooth transition and alignment of reinforcing members within the polymer mixture during the melt process.

Abstract: Systems, methods and apparatuses for manufacturing dosage forms, and to dosage forms made using such systems, methods and apparatuses are provided. Novel compression, thermal cycle molding, and thermal setting molding modules are disclosed. One or more of such modules may be linked, preferably via novel transfer device, into an overall system for making dosage forms.

Abstract: A mold portion of a molding tool for making plastic articles includes a base body defining a cavity surface and having formed therein at least one heating channel, and at least one cooling channel separated from the heating channel and having a cross section which is smaller than a cross section of the heating channel. The cooling channel is positioned hereby closer to the cavity surface than the heat channel and thus is in an area between the heat channel and the cavity surface, thereby defining a cavity-proximal cooling channel and a cavity-distal heat channel. Before the injection process, the cavity surface is heated by the heat channel to a higher temperature than the demolding temperature of the plastic article to be formed. At the end of the injection process, the cavity surface is cooled by the cooling system.

Abstract: A gas burner includes a monolithic burner panel coupled to a bottom burner member for use as a bottom panel of a combustion chamber enclosure. The burner panel includes at least one aperture for providing a gas/air mixture to a top surface of the burner panel for combustion. The burner panel includes at least one elevated area. The burner panel is a composite material formed from a compression molding process. The burner panel includes elevations that can be shaped into log structures to provide a realistic fire within a fireplace unit, stove, or insert.

Abstract: Post mold cooling apparatus and method having transverse movement preferably includes structure and/or steps for cooling a plurality of plastic articles molded on a row of mold cores. A post mold cooling device is provided having (i) a first row of cooling tubes configured to hold a first plurality of the molded plastic articles, and (ii) a second row of cooling tubes configured to hold a second plurality of the molded plastic articles. A cooling station is disposed adjacent the cooling device and is configured to provide a cooling fluid to an interior of both the first and second pluralities of molded articles inside the respective first and second rows of cooling tubes.

Abstract: A bench-top molding process is disclosed in combination with an apparatus designed to heat a molding composition. In accordance with the present invention, the molding composition contains a thermoplastic elastomer and a plasticizer. The thermoplastic elastomer can be, for instance, a styrene-ethylene/butylene-styrene block copolymer. The plasticizer, on the other hand, can be mineral oil. The block copolymer can be chosen in conjunction with the plasticizer so as to have a bubble rise rate when heated equal to at least one half of the bubble rise rate of glycerin at room temperature. By having a bubble raise rate in the above range, it has been found that no significant amounts of air will be trapped in the molding composition when formed into a casting.

Abstract: Disclosed herein are data storage media and methods of making the same. The data storage media, comprises: primary surface features disposed on at least one side of said data storage media; and secondary features superimposed over at least a portion of said surface features. In one embodiment, the method for manufacturing the data storage media comprises: disposing an identifier layer onto a surface of a stamper, said stamper having primary surface features on a first side of said stamper opposite said identifier layer; forming secondary features on an exposed surface of said identifier layer; installing said stamper into a mold; injecting a molten plastic material into the mold, wherein said molten plastic physically contacts said first side; cooling said plastic to form said data storage media, such that a positive image of said primary surface features and of said secondary features are formed into at least a portion of a surface of said plastic; and releasing said data storage media from said mold.

Abstract: A heat exchange apparatus for a metal mold is provided, which includes a heat exchange passage provided for the metal mold, a first supply unit for supplying hot heat carrier to the heat exchange passage and a second supply unit for supplying cold heat carrier to the heat exchange passage. The heat exchange apparatus performs heat exchange for the metal mold by supplying the hot heat carrier and cold heat carrier to the heat exchange passage switching alternately. And the heat exchange apparatus has a feature that it includes an air supply unit for supplying air to the heat exchange passage so that the heat carriers are purged when the hot heat carrier and cold carrier are switched.

Abstract: An apparatus for protecting thermocouple circuits in an injection molding system includes a protection circuit for each thermocouple pair. The protection circuit includes a resettable fuse disposed in series with each thermocouple wire for preventing high leakage current from passing through, and a capacitor connected to the two wires of a thermocouple to filter out AC line noise. The protection circuits are integrated in a junction box used to connect a heater power cable and a thermocouple control cable to the hot-half of the molding machine.

Abstract: A blow-molded decorative article is disclosed which comprises a plurality of different polymers having different melt flow rates that cause inter-dispersion of the polymers upon blow-molding. The article is blow-molded from a multiple layer parison that a plurality of layers of like polymers, i.e., polyethylenes, polypropylenes, polystyrenes, etc., that have different melt flow rates and different colors. As a result in the differences in the melt flow rates, the polymers of the various layers mix upon blow-molding to create the look of a glazed ceramic pottery or an exterior pattern such as a tie-dyed marbleized or camouflaged pattern.

Abstract: A die preparation and exchange method wherein dies to be inserted into an injection molding machine are electrically and fluidly heated prior to insertion so as to prepare the dies to make parts more quickly. The die exchange sequence wherein a first set of dies are removed from the machine and are replaced by a second set of dies has been changed from a generally serial sequence to a sequence wherein most steps are performed in parallel or simultaneously, greatly reducing the downtime associated with mold change.

Abstract: A method for rapidly heating a mold cavity to a predetermined temperature preferably above the softening or melting temperature of the molding material prior to and during the molding stage thereby increasing moldability and improving quality of molded parts. The mold cavity is formed by two metallic halves on which high-frequency electric current is applied and an electric circuit involving the two halves is formed. Due to the proximity effect, the electrical current flows on the inner surfaces of the two cavity halves, thus rapidly heating the mold cavity. Proper use of insulation behind the cavity surface helps increase heating efficiency. Conformal on-off cooling channels provide both thermal insulation during the heating phase and rapidly cooling of the molded article during the cooling phase.

Abstract: A method for producing a polishing pad comprising (a) providing a porous polymer structure, (b) compressing at least a region of the porous polymer structure to provide a translucent region, and (c) forming a polishing pad comprising the porous polymer structure, whereby a polishing pad is produced comprising the translucent region. Also provided is a polishing pad produced according to this method, and a polishing pad comprising a region that is at least translucent, wherein the translucent region is porous, as well as a method of polishing a substrate using a pad of the invention.

Abstract: A molded object is manufactured by a process, comprising: a) preparing a shaped object by molding a formulation of: 35 to 100% by weight of a thermoplastic polyester, 0 to 60% by weight of filler or a reinforcing material, 0 to 20% by weight of an impact modifying rubber, 0 to 30% by weight of a flame retardant, 0 to 20% by weight of a synergist and 0 to 5% by weight of other additives and/or processing agents; and b) treating the molded object for at least 1 hour at a temperature ranging from 180 to 250° C., thereby preparing a molded object with improved short-time deflection temperature under load properties.

Abstract: A method is provided for forming a body for a hard disk carriage assembly from polyphenylene sulfide 40% glass fill. An injection mold is heated to approximately 130° C.; then a volume of polyphenylene sulfide 40% glass fill is injected into the mold to form the body of the carriage assembly. The polyphenylene sulfide 40% glass fill is then cooled within the mold for approximately 45 seconds before the body is ejected from the mold cavity. The body is then heated to approximately 130° C. for at least 2 hours in a post-bake operation.

Abstract: The present invention provides a process for fluid assisted injection molding comprising the step of providing an injection molding apparatus having a mold body that defines a mold cavity. The process further comprises the steps of supplying a quantity of fluent plastic to the mold cavity, following by injecting a fluid into the mold cavity. A reservoir is selectively connectable to a plastic injection runner, and can be opened to the runner to receive molten plastic ejected by the introduction of the fluid to the mold cavity. When the reservoir is thusly connected, the pressure of the fluid forces the plastic through a supply passage, in a direction substantially opposite to its initial injection direction.

Abstract: To provide a molding method for non-painting molded article of automotive outer panel with high quality appearance and molded article thereof. The molding method for non-painting molded article of automotive outer panel (high quality appearance) is characterized by carrying out extrusion in metallic mold (wherein, Tb>Tc), where the tool temperature (Tb) was adjusted 0° C. to 100° C. higher than heat deformation temperature of injection thermoplastic resin, while heating. After cooling, the tool temperature (Tc) was lower down by 0° C. to 100° C. than heat deformation temperature of injection thermoplastic resin while extraction, during the injection molding of molten composition containing thermoplastic resin composition.

Abstract: Injection molding techniques to form a microfluidic structure or substrate having at least one flash-free aperture. A method comprises injecting a polymeric material into a cavity of a mold. The mold includes at least one pin extending a length into the cavity wherein the length is greater than a depth of the cavity such that the pin is compressed when the mold is closed. Material injected into the cavity is shut off from the space occupied by the pin and consequently, undesirable flash is avoided. The mold is opened and the substrate is removed from the mold. The pin may be integral with the mold, discrete, or be comprised of individual components which can be combined together when the mold is closed to form a solid body. Preferably, the length of the pin is at least about 60 microns greater than the depth of the cavity.

Abstract: The present invention provides an ornamental exterior component with a luster finished appearance and a method of forming the component at a low cost. The method of the present invention comprises the steps of mixing a lustrous material with a colored resin material or transparent resin material, setting the temperature of a molding die at a desired high temperature, injecting the resin material in its molten state into a molding cavity of the high-temperature molding die to rapidly heat the injected resin material, and reducing the temperature of the molding die to rapidly cool the resin material in the cavity, whereby a highly lustrous molding is formed with a smooth surface. Then, a transparent coating material is applied on the surface of the molding to finish the molding into a resin product having an excellent appearance.

Abstract: Sleeve molding apparatus and methods for making multi-layer injection molded plastic articles in successive mold cavities. In a first molding step, an inner sleeve is molded on a core in a first mold cavity, which may comprise a full body length sleeve or only a partial sleeve, such as an upper neck finish portion. The sleeve and core are withdrawn from the first mold cavity while the sleeve is still warm, and transferred without substantial delay to a second mold cavity for injection molding an outer layer which bonds to the inner sleeve. By transferring the sleeve at an elevated temperature into the second mold cavity, an improved bond is formed between the inner sleeve and outer layer which resists separation during a later reheat stretch blow molding step, and/or in use of the resulting article. In a preferred embodiment, a pasteurizable beer container is provided having a finish-only sleeve of a PEN polymer.

Abstract: In one embodiment, the method for producing a stamper, comprises: forming a nickel plated substrate having desired surface features on one side; disposing a managed heat transfer layer on a second side of said substrate; forming a thickness of said managed heat transfer layer having a variation of less than about 5%; and altering said exposed surface of said managed heat transfer layer. Also disclosed are a method and apparatus for producing data storage media.

Abstract: A plastic injection mold assembly is disclosed in which an electric servo motor very precisely controls rotational speeds and amounts of torque applied to cores which extend into the mold cavities as the cores are withdrawn from plastic components being molded and simultaneously directs the linear distances which the cores travel during such withdrawal. A method of accomplishing the molding of plastic components in this manner is also disclosed.

Abstract: A method for producing an article made of plastics by an injection molding process is described. A movable die of a plastic-material injection molding die assembly is heated at a temperature of 50 to 70° C., or 60 to 95° C., and placed at a coating station to apply a liquid acrylic lacquer coating or urethane-based or epoxy-based coating on a molding surface of the movable die. Then, the movable die is moved into a drying chamber maintained at a temperature of 50 to 60° C., or 80 to 90° C., and placed in the drying chamber for 30 to 90 seconds, or 6 to 30 seconds, to semi-dry the coating applied on the molding surface. Subsequently, the movable die is connected to a fixed die of the die assembly to form a molding cavity. Then, a molten plastics material is injected into the molding cavity to produce an injection-molded plastics material product having a coated film of the coating.

Abstract: The present invention is directed to a process for the manufacture of three-dimensional acoustically sound automotive insulation parts. In particular, the process includes mixing a two component polyurethane resin, applying the resin to a substrate, molding the substrate and then trimming and demolding the resin applied substrate.

Abstract: An injection molding method that ensures, in the molding of optical disks and the like, accurate transferability, optical characteristics and mechanical characteristics for accurately transferring a super fine structure that could not be transferred satisfactorily by the conventional molding method, mass production of replicas, and so on, thus improving the production efficiency. It comprises the steps of using a cavity forming mold composed of at least two members, charging molten resin into the mold, obtaining a molding, wherein one of the members constituting the mold passes through a stage that is separated into at least three steps, a charging step, a press step and a molding take-out step, and molten resin is charged into the unclosed cavity of the one member in the charging step and then a molding is formed in the press step.

Abstract: A method and a system is provided for producing a needle of plastic, as well as the needle of plastic which includes a needle for medical purposes. The method for producing the needle includes introducing a melt of plastic into a feed system, increasing the melt pressure gradually during melt passage through the feed system, passing the melt into the mould cavity, whereby the melt substantially fills the mould cavity, cooling the melt into the mould cavity whereby the melt solidifies to a needle, and removing the needle from the mould cavity. Increasing the pressure through the feed system provides for meeting specific pressure demands at the entrance of the mould cavity, thereby moulding thin and elongated articles.

Abstract: The present invention is a method for making a plastic overcap using a mold tool stack. The mold tool stack has a core and a cavity plate forming a cavity therebetween. The core has a resin passageway therein with a gate in a top surface of the core. The gate has a valve proximate the top surface of the core to regulate resin flowing from the resin passageway and into the cavity. The steps of the mold method are as follows: the mold tool stack is closed to form the cavity; the valve is opened to allow resin to enter the cavity; the valve is closed; the resin is allowed to cool; and the mold tool stack is opened to allow removal of the plastic overcap from within the mold tool stack. The top side of the plastic overcap produced is blemish-free, facilitating placement of labels and other markings thereon.

Abstract: There is provided a process for producing a light transmitting plate comprising the steps of:

Abstract: In a mold device for injection molding of synthetic resin having a cavity surface alternately heated and cooled and a bottoming structure for producing a product having a bored portion like a window, a bottoming portion for the production of a product having a bored portion is provided on a parting surface of the mold and a vacant space is provided in the bottoming portion. Thus, the contact area of the bottoming portion is reduced and a contact pressure of the bottoming portion and thermal strain due to a temperature difference between the cavity side mold and core side mold are reduced, so that it is possible to prevent occurrence of crack in a portion located immediately outside the window of the product.

Abstract: Flat textured or roughened blanks are used in injection molding processes to provide in-mold labels and similar decoration. This provides decorated article that has a desired texture, for example, that of a football or basketball, with custom graphics behind the texture. They may be configured into (preferably but not necessarily tapered) self-supporting sleeves, by joining opposite sides together at a seam or other interface. The sleeves may be used in applications such as inserts for injection molded containers, attachments to existing objects; components of containers manufactured using modified paper cup technology, or glued onto existing paper or plastic cups or containers. Other articles could be produced, such as recording media (e.g, DVD) cases, lunch boxes, food and other consumer packages, or any other type of injection blow molded or impact molded product.