Abstract: A combination of a rubber or other elastomer part and a plastic or metal part is bonded by both chemical and mechanical means. The mechanical means is in the form of molded rivets integrally manufactured in the molding process as part of the elastomer. Appropriate mating holes are made in the plastic or metal parts to receive the rivets during the molding process or at least before the rivets are cured. Conventional chemical bonding materials for the circumstance are employed with the rivet bonding to provide dual bonding strength. The parts of a blowout preventer, such as at the T-seal and the upper seal, are disclosed as preferred examples of locations that are subject to high pressure and temperature where an elastomer part is bonded to a plastic or a metal part.

Abstract: An automotive door panel that has styling lines is made by laying a facing layer of soft trim material on a support surface of a mold part. The facing layer has a backing layer of open cell flexible foam that has gaps that expose strips on the back surface of the facing layer. A heat-sensitive adhesive barrier film is behind the flexible foam backing layer. The mold is closed by a mating mold part and a urethane precursor mixture is injected into the closed mold which is heated to generate a structural substrate. The generating substrate crushes the backing layer and activates the adhesive film to bond the structural substrate to the exposed back surface strips of the facing layer to provide the styling lines. These styling lines are enhanced when the foam backing layer recovers upon removal from the mold.

Abstract: A vehicle tilt-out window with a resilient seal insert includes an annular frame which is bonded to the vehicle window opening. The frame includes a resilient double lip seal which is molded into a recess formed in the frame and the lip seal cooperates with a glass panel mounted upon the frame by homogeneous hinge tabs extending from the frame permitting the glass panel to be tilted relative to the frame for ventilation purposes and an articulated pivoting latch mounted to a homogeneous latch base locks the glass panel against the lip seal.

Abstract: A kitchen tool has a work end of plastic molded to a reinforced plastic handle. The reinforcement is completely encapsulated in the kitchen tool which has a smooth uninterrupted outer surface. A method of making the tool also is enclosed.

Abstract: A stopper for a rope which is injection molded on the rope. The stopper has a sleeve-like shape and surrounds the rope without play and prevents an axial slippage of the stopper from the rope. A strut is formed as one piece with the stopper and extends radially through the inner diameter of the rope. Also a method of forming a stopper on a rope is included.

Abstract: A cover assembly for an internal combustion engine includes sleeves that are connected with a cover member by rubber bodies. The rubber bodies decouple the cover member from structure-borne sound from the engine. Depending on its configuration, the cover assembly may be used as an oil pan or a valve hood. The cover assembly is made from a cover blank which includes the cover member, the sleeves, and webs which connect the sleeves to the cover member. The cover blank is placed in a mold. The webs break and the sleeves are axially displaced with respect to the cover member as the mold is closed. An elastomer material is then injected into the mold to form the rubber bodies.

Abstract: The present invention relates to a method and apparatus for making an elastomeric spring assembly comprised of first and second plates joined to opposite sides of an annular elastomeric spring member. The preferred method of the present invention includes the steps of arranging the first and second plates in spaced and aligned relation relative to each other; laying a preformed annular elastomeric spring member between the spaced plates; positioning the spring member at a predetermined location relative to the plates as with a powered apparatus movable intermediate the plates between a first position whereat the apparatus engages and positions the spring member relative to the plates and a second position whereat the apparatus is removed from between the plates; and, compressing the spring member between the plates with a force sufficient to establish a cold-formed interlock between the plates and the spring member.

Abstract: The present invention relates to a connector housing and a method of manufacturing the waterproof connector housing. The waterproof connector housing according to the present invention includes: an engagement frame for receiving a mating connector at a front portion thereof; a ring-like primer layer formed on a wall of at least an engagement face of the engagement frame; and addition-reaction fluid silicone rubber formed on the ring-like primer layer, wherein the addition-reaction fluid silicone rubber is combined with the primer layer by vulcanizing the fluid silicone rubber such that a ring-like packing is integrally formed with the connector housing.

Abstract: A method for manufacturing a reinforced cementitious structural member having a predetermined shape and size includes providing a mold having a cavity which corresponds to the shape and size of the member, placing at last one permeable fibrous mat into the cavity, introducing a slurry of cementitious material into the cavity so that the slurry of cementitious material fills the cavity and infiltrates and encapsulates the fibrous mat, curing the reinforced cementitious material, and separating the cured reinforced cementitious structural member from the mold.

Abstract: A multilayer molded article having good appearance is produced by providing a preheated fiber-reinforced resin sheet between a pair of upper and lower molds, and supplying a thermoplastic resin melt and optionally a foam sheet between the upper mold and the fiber-reinforced resin sheet. The thermoplastic resin melt is supplied through a resin supplying opening provided in the lower mold, and through a hole made in the fiber-reinforced resin sheet and the foam sheet. During the supply of the resin melt or as soon as the resin supply is finished, the molds are closed to further flow, and the resin melt is formed to produce a mu molded article made of the fiber-reinforced resin sheet, a skin layer of the thermoplastic resin and optionally the foam sheet therebetween.

Abstract: A method for manufacturing a reinforced cementitious columnar structure including: providing a mold having a cavity which corresponds to a shape and size of the columnar structure; placing at least one nonwoven metal fiber mat around the periphery of the cavity; filling the cavity with a slurry of cementitious material containing aggregate having a particle size greater than the size of the interstitial voids of the fiber mat; curing the slurry of cementitious material; and removing the mold.

Abstract: The keytop of a push-button switch includes a keytop portion situated on the top of a resin film, and a retaining portion situated on the underside of the resin film. The keytop portion and retaining portion are formed into a unitary body by a resin-molding process in which resin is passed through a hole provided in the resin film such that the resin film is sandwiched between the keytop portion and the retaining portion. In another embodiment, the retaining portion is loop-shaped and is formed into a unitary body with the keytop portion by a resin-molding process in which the resin passes through a plurality of holes provided in the resin film in a pattern corresponding to the loop-shaped circumference of the retaining portion. The resin film is sandwiched in a water-tight state between the keytop portion and the loop-shaped retaining portion.

Abstract: A method of producing a hydroxylapatite base porous beads filler for an organism, including mixing hydroxylapatite powder having particle sizes not larger than 125 .mu.m, in an amount ranging from 40 to 90% by weight, synthetic resin powder having particle sizes not larger than 74 .mu.m, in an amount ranging from 5 to 55% by weight, and resinous binder in an amount ranging from 0.5 to 5% by weight to obtain a mixture, granulating the mixture to form beads each having a diameter ranging from 0.03 to 25 mm, firing the beads at a temperature ranging from 900.degree. C. to 1180.degree. C. to form hydroxylapatite base porous beads, dipping the porous beads in a colloidal solution, removing air from the porous beads under vacuum, and filling the colloidal solution into the pores in the porous beads under pressure.

Abstract: A self-leveling underlayment for a tile countertop, and a method and kit for forming same, is disclosed. In practicing the method on the top deck of a cabinet, a protective paper sling is hung in an interior deck opening and a protective shroud is hung over front cabinet faces. The deck is covered with roofing felt and a flashing strip is fitted along the seam where the deck meets walls, masking tape being used to bind these together. A styrofoam punch-out is fixed in place over the sink opening. Metal lath is laid over the felt, and rebar is laid along edges of the deck. Lengths of backer board are placed along walls adjacent the deck to support backsplash tile, and a dam is affixed along the deck's front edge, thus defining a mold for an underlayment. A self-leveling, water-based, cementitious underlayment mix is poured into the mold to form a surface, once set-up, for supporting tile.

Abstract: Tie-down fastener formed as an integral part of a vehicle cargo liner and the process of making the same. The liner has a first liner surface, which engages the interior surface of the vehicle cargo bed when the liner is a truck bed liner, and a second liner surface opposite the first liner surface. One embodiment includes a washer or nut embedded in and substantially flush with the first liner surface of the liner for the attachment of a screw or bolt therethrough. In a second embodiment, a raised protrusion having a hole therethrough for the attachment of a tie-down thereto extends from the second liner surface and away from the first liner surface of the liner. In another embodiment, a protrusion extending from the second liner surface and away from the first liner surface of the liner is used to fasten a clip, bolt or rod which may, in turn, be used for attachment of a tie-down thereto.

Abstract: A process for forming an artificial rock is provided. The process includes forming an outer mold having an outer surface and inner surface, the inner surface defining the size, shape and detail of the artificial rock to be formed. An inner mold is formed to be receivable within the outer mold. The inner mold and outer mold are secured in place relative to each other to define a space therebetween. Molding material is poured into the space between the inner mold and outer mold. The molding material is allowed to harden to form an artificial rock within the space. The molds are then separated leaving the artificial rock.

Abstract: The drain hole core for a drain seal fitting includes an elongated elastomeric member having a handle on one end, a rod-like member on the other end, and a integral plug between the handle and rod-like member. The drain hole core is inserted into the drain opening of the drain seal fitting such that the rod-like member extends up into the bore extending through the drain seal fitting and the plug seals the drain opening. A dam seals that area between the electrical wiring and the internal circumferential wall of the lower portion of the drain seal fitting. A sealing compound is then poured into an access opening in the side of the drain seal fitting so as to seal the bore of the drain seal fitting and to cover a portion of the rod-like member. Once the rod-like member is removed, it acts as a mold and provides a drain path from that portion of the bore above the sealing compound to the drain opening. The drain opening is then closed with a drain fitting.

Abstract: A process for the production of an integral composite molded item including(i) a surface portion having a synthetic resin phase containing a fibrous reinforcing material,(ii) a core portion having the synthetic resin phase containing bubble-containing particles, and(iii) a separation layer positioned between the surface portion and the core portion, the process including the steps of:providing in a substantially sealed mold (1) a separation layer which does not substantially pass therethrough bubble-containing particles but which is capable of passing a synthetic resin or its precursor that is liquidized at the time of molding; (2) a synthetic resin or its precursor on either or both sides of the separation layer; (3) a fibrous reinforcing material between the separation layer and the mold, and (4) an aggregate of bubble-containing particles on the side of the separation layer opposite to the mold;causing volume expansion of the aggregate;causing the resin to flow through the separation layer to thoroughly di

Abstract: A centrifuge bowl of the type having a shell including a peripheral wall and a cast inner liner attached to the inside surface of the peripheral wall is modified by the provision of a plurality of punched channel portions which extend inwardly into the bowl from peripheral wall to define a U-shaped channel with severed ends. During the casting process the casting plastics material extends into the recess behind each channel portion and thus when set forms an insert portion which anchors the liner to the channel portion and thus to the peripheral wall. Openings for the entry of fluidizing water are then drilled through the insert portion from the outside of the shell through one end of the channel portion and through the liner into the interior of the bowl.

Abstract: This invention relates to an improvement in an apparatus for directing the flow of water from the penstock to the vanes of a hydraulic turbine, generally referred to as a wicket gate, and a method for making the improved wicket gate. The improved wicket gate comprises a rotatable planar body made either of a high-strength plastic material or metal, onto which a viscoelastic material is affixed. The improvement lies in the application of the viscoelastic material to the rotatable planar body in such a way that the viscoelastic material becomes an integral component of the rotatable planar body. This improvement extends the maintenance life cycle by reducing marine growth, erosion and pitting caused by cavitation.

Abstract: A method of forming a rubber seal containing a metal insert where a transfer mold having a cavity is provided with a post and a plurality of upwardly extending arcuated bosses on the base of the cavity. A metallic insert is disposed on the bosses and a flowable rubber material forced into the mold cavity and envelopes the metallic insert to form the rubber ring seal. The rubber seal produced has a plurality of spaced, aligned arcuate grooves in a flat planar surface of the base extending inwardly towards the embedded metallic insert.

Abstract: A method for forming hollow concrete structures or shells in which the top, bottom and sides are formed into an integral unitary structure by rotating an assembly of reinforcing members to enable the concrete forming the top, bottom and side to each be finished in a substantially horizontal position with a minimum of forms. Openings for doors and windows may be formed by using suitable blanks that are prepositioned prior to pouring the concrete. Also, suitable end closure members can also be formed in a flat or horizontal position inside the unitary structure for subsequent erection in a vertical position.

Abstract: A method of joining the ends of a papermakers fabric wherein machine direction yarns are fringed out at the fabric ends, yarn ends being laid across a pinned plate, and yarn ends being cut back so as partially to overlie the plate. Those yarns which extend across the plate are folded back to form loops beyond the edge of the plate and a thermoplastics matrix material is applied to the plate. The matrix material is made fluid by heating and, on subsequent cooling, forms an apertured end to the fabric which presents side-by-side, outwardly extending loops. The loops at the respective fabric ends may be interdigited to receive a pintle wire, thus to bring the fabric into endless form.

Abstract: Process for manufacturing walls from earth and sand mortars includes making a mortar mixture containing a dry aggregate mass of between 15 and 50% by mass of earth and between 85% to 50% by mass of sand, bonding materials in a mass of at most 10% of the dry aggregate mass, and water in a mass of at most 22% of the total dry mass of earth, sand and bonding materials, stirring the mixture continuously and transferring while stirring the mixture by force into an inlet of a pump, and pumping the mixture from the pump and projecting the mixture within a framework against a vertical projection support and allowing the mixture to set.

Abstract: An improved fin stabilized projectile including multiple stabilizer fins upon a stabilizer unit situated at the aft end of the projectile is provided, the improvement wherein the stabilizer fins are joined into the stabillizer unit by an injection molded engineering grade polymer.

Abstract: A heat exchanger comprising a conduit formed by two elongated channel forming sheets bound and sealed together along facing flat edges by encapsulating plastic extending around the edges of the sheets and extending through matching openings in the flat sheet edges. The encapsulation is preferably carried out as part of the reaction injection molding of a container, with the heat exchanger encapsulated in a wall of the container.

Abstract: A method for the injection molding of a laminate article having a deformable material sandwiched between a textile layer and a thermoplastic substrate and bonded into a unitary assembly by the thermoplastic. The laminate is molded into a sheet form for deformation to a preselected shape in a die-forming operation.

Abstract: A method for producing a lid device for a wide-mouthed container which comprises a lid body having an opening of a predetermined shape, and a closure member made of a soft synthetic resin for closing the opening of the lid body. According to the method, the lid body and a vapor impervious film are placed between a first mold body and a second mold body with the film located on the side of the second mold body. The first mold body has a closure forming cavity, whereas the second mold body has a tab forming cavity. A fluid synthetic resin is injected under pressure from the side of the first mold body to fill the closure forming cavity. The resin is caused to break through the film to fill the tab forming cavity, thereby forming a pull tab integral with the closure member.

Abstract: A geotextile having a soil treatment compound includes a porous sheet having a plurality of spaced nodules of composite material secured to the sheet. The nodules are composed of a soil treating agent and a binder which is injected through the sheet and solidified, such that the sheet is enmeshed by the nodules.

Abstract: This invention deals with a multipart structurally reinforced gasket product, suitable for use in V-8, V-6, straight 6 and straight 4 automotive engines or the like, said gasket product being made of a plurality of interconnected nested reinforced gaskets, each gasket including an inner reinforcing means (preferably made of a metal stamping) for providing shape, positioning, and strength to the gasket, and, a molded elastomeric material formed around said reinforcing means, said plurality of interconnected gaskets being held in interconnected relationship, prior to actual usage, by shearable connector means which function to assist in holding the reinforcing means in proper position when the elastomeric material is being molded onto the reinforcing means; and, said elastomer portion of the gasket being made of a compound which preferably possession a shore A durometer of 60 (plus or minus 5).

Abstract: A method of forming an integral intermediate layer in a flexible single injection molded component is disclosed. According to the method a strip comprising the sandwiched layer is securely positioned within a molding cavity. During injection of the mold material a tensile force is applied throughout the strip in a plane orthogonal to a critical component direction. The method is particularly suited for the fabrication of wrist mounted electronic devices having an electrical connection to a conductive member integrally housed within a molded wristband.

Abstract: A method and apparatus for constructing an above ground concrete encased storage tank. The apparatus has a support assembly that extends from the baseplate of a concrete form, that supports, elevates, and secures an inner storage tank from the form baseplate, so that the tank may be completely surrounded by concrete. The form has removable walls that may be pivotally attached to the baseplate and initially in a horizontal position. The support assembly has anchor bolts that extend through holes in the baseplate. The anchor bolts are screwed into anchor nuts that are attached to a pair of brackets. The anchor nuts and brackets are spaced from the baseplate by sleeves that fit over the threaded portions of the anchor bolts. The brackets are constructed to support the storage tank, which is placed in the form on top of the support assembly. The tank is then fastened to the support assembly.

Abstract: A molded oil pan gasket having an integrally formed pair of elastomeric side sections and pair of elastomeric end sections and a rail in each of the side sections. Each rail is an elongated rigid thermoplastic member having a generally flat main body of a first thickness and a plurality of integrally formed, longitudinally spaced stops. Each stop provides a fastener opening. The stops are of a height substantially greater than the first thickness, but less than the thickness of the associated side section. A plurality of apertures are formed in each rail for integrating the rail and the elastomer of the associated side section. A series of abutments and stiffening ribs are also disclosed.

Abstract: Process for manufacturing tubes of a composite material from a preimpregnated fibrous reinforcing sheet whose width is split into a strip portion and a casing portion, where the thickness of the sheet is slit in the casing portion. A mandrel is inserted into the casing portion and rotated to cause the strip portion to be rolled around the mandrel, and the rolled strip and mandrel are placed into a plastic case for cross-linking. The process can be applied to the manufacture of tubes of small diameter, such as fishing rods, golf clubs and boat masts, and to the manufacture of porous tubes for use as a filtering material or filter membrane support.

Abstract: A method for making a roller sleeve assembly comprising providing a metal sleeve, forming apertures extending radially through the sleeve, bonding a flexible sleeve to the exterior of the metal sleeve and permitting the flexible sleeve material to fill certain of the apertures. The invention further contemplates a method for making a roller assembly comprising sliding the above-described sleeve assembly onto a hub comprising a circular wall with ribs extending normally therefrom, and providing locking plates and cooperative pins for locking the sleeve assembly onto the hub, with the pins disposed partly in the locking plates and partly in other of the sleeve assembly apertures.

Abstract: A formwork for a draft tube which includes ganged precast forms, each precast form corresponding to a curved segment of the draft tube. The precast forms are molded with continuous side plates extending thereabout and anchored in the precast concrete form and projecting beyond the surface opposite to the contact surface to provide a flange. A fastening means for attaching adjacent forms with a space therebetween to allow for stripping. A method includes determining the outline of the inner surface of the draft tube and dividing it into segments and preparing molds to make precast forms corresponding to each segment. The precast forms are assembled and shored to provide the draft tube ganged formwork, and concrete is poured about the draft tube formwork and is cured. The precast forms are stripped from the set concrete structure and reused in another draft tube formwork.

Abstract: A hermetically sealing apparatus comprises: a first seal ring made of a rubber-like resilient material and adapted to seal two members which rotate relative to each other; a second seal ring made of a resin and disposed adjacent to the first seal ring on the atmosphere side; and a backup ring secured to the first seal ring. The backup ring has a flange for clamping both the first and second seal rings. The flange is provided with a plurality of holes in such a manner that a portion of the second seal ring contacting the flange bites into the plurality of holes owing to a molding pressure of the first seal ring.

Abstract: A method is shown for forming a flange on an end of a plastic pipe liner of the type used to line a tubular member. A reinforced disc having a rigid portion and an elastomeric portion is placed about the liner exterior and moved into position flush with the flanged end of the tubular member. A retaining ring is placed about the reinforced disc and the disc and liner exposed end are heated to render the materials malleable. A forming unit is then used to apply force to the liner to flow the liner into a reformed shape having a greater external diameter than the remainder of the liner. The forming operation also bonds the reinforced disc to the reformed liner end to further resist any tendency of the liner end to be retracted into the interior of the tubular member.

Abstract: A method of injection molding and a mold for the forming of a thin walled fabric reinforced elastomeric diaphragm. According to the method, a thin, precut, preformed sheet of fabric material is placed within a suitable injection mold cavity. Subsequently, a high molecular weight elastomer is injected into the mold cavity in a controlled manner to prevent migration or weave distortion of the fabric material.

Abstract: A method attaches small plastic parts securely in a defined position on compression molded parts consisting substantially of bonded or synthetic resin bound natural fibers or chips. The parts are compression molded into the desired shape in a compression mold from a preformed, loose layer of a mixture of at least one of natural fibers and chips and of binder introduced into the compression mold, while undergoing a setting reaction of the binder and a volume reduction of the layer. During the compression molding operation, at least one clearance or thin portion, smaller than the small plastic part, is formed in the wall of the compression molded part at the fastening point of the small plastic part on the compression molded part. Thereafter, a direct form-fitting injection molding of the small plastic part or parts onto the wall of the compression molded part at the fastening point is carried out.

Abstract: In a method of making an ornament, a metal ornament body having an internal groove opening at one end to an end edge of the metal ornament body and at an opposite end to front and rear surfaces of the metal ornament body is held between two relatively movable mold members while the one end of the internal groove is connected to a gate of the mold members and the opposite end of the internal groove communicates with mold cavities in the mold members. Then, a melted synthetic resin material is injected into the mold cavities through the gate and the internal groove. The gate mark is not formed on the outside surface of an ornamental member molded of synthetic resin but left on the end edge of the metal ornament body. The gate mark thus formed is normally hidden from view and does not deteriorate the aesthetical appearance of the ornament.

Abstract: A molded resin casing of an electronic part equipped with a flat cable and internally accommodating a board on which are formed electric conductor patterns slidingly contacted by contacts of a slider of the electronic part. A flexible board having various electric conductor patterns formed on a synthetic resin film is used as the board, the flexible board is formed integral with a flat cable including a synthetic resin film on which are formed electric conductor patterns electrically connected to the aforementioned various electric conductor patterns, and when the molded resin casing is molded by injecting a molten synthetic resin, the flexible board is inserted in such a manner that the electric conductor patterns are exposed within the casing, thereby integrating the flexible board and synthetic resin casing, with the flat cable extending outwardly from a side portion of the synthetic resin casing.

Abstract: A new method of forming composites or laminates into complex shapes has been developed. A process using a die with piercing studs allows control of fibers motion during processing, leading to better composite parts.

Abstract: A spherical sealing body is to be inserted in a space defined by three of an end edge of an exhaust pipe on upstream side, a flange fixed on an outer periphery of the exhaust pipe on upstream side, and a concave spherical portion disposed on an end edge of an exhaust pipe on downstream side. The spherical sealing body includes a wire mesh body obtained through weaving or knitting a fine metal wire, the metal mesh body has a cylindrical inner circumferential surface to be fitted in an outer circumferential surface of the exhaust pipe on upstream side, a convex outer circumferential surface to be fitted in the concave spherical portion, and a bottom surface on large diameter side to be abutted against the flange. A refractory material is filled in meshes and clearances of a part of the wire mesh body corresponding to the convex outer circumferential face and the bottom face.

Abstract: A refractory fiber module retainer system and a method of forming such retainer system is disclosed; the system includes a unitary refractory fiber module possessing substantial rigidity; the module being formed, such as by molding to have a perforated support means embedded within the module, and with a suitable bore for enabling the required fastening of the module to a furnace shell or the like. The system further includes a stud as part of the fastening means, said stud being passed through the bore and through an opening in the support means such that the stud can be readily welded to the furnace shell after the module has been placed against the shell. A locking means is locked into place on the free end of the stud, which end is located deep within the bore. A plug is fitted into the bore at the inner or "hot" face of the module, thereby to prevent corrosion of the fastening means; likewise, to preclude heat transfer from the interior of the furnace to the furnace shell.

Abstract: A method of manufacturing a strip for carrying a plurality of small size electronic parts such as LED's enclosed hermetically in resin includes the formation of a grid-like conductor strip member by interconnecting lead wires for the electronic parts in a grid-like pattern. The conductor strip member is molded integrally with a strip segment in which the plurality of electronic parts are mutually connected by a runner member. A connecting portion is formed integrally at least at one end of the strip segment at a predetermined position such that while connecting the connecting portion of a first plastic strip segment with one end of a second plastic strip segment, wherein the predetermined position of the connecting portion is such that the distance between the preassigned mount locations for the small size electronic devices positioned on both sides of the connecting portion coincides with the predetermined pitch.

Abstract: A method of forming at the end portion of a thermoplastic material pipe in a pipe socket. The pipe end portion is molded around an annular sleeve onto which is bonded a sealing ring having an outer sealing ring adapted for sealing against the pipe end portion and an inner sealing ring, connected to the outer sealing ring, adapted for sealing against an outer surface of a spigot end of a connecting pipe introduced into the socket.

Abstract: According to this invention a disposable, moldable plastic razor is made by a single multi stage molding process. This is accomplished by molding a blade support around a single narrow blade and using the combination of blade support and blade as the basis for subsequently molding the other moldable plastic razor elements.In another aspect of this invention, a subassembly comprising blade support and blade is provided having certain defined spatial characteristics which provides the first "building block" for the assembled disposable razor.

Abstract: A multi-layer molded article including a thermoplastic resin body having a plurality of ribs and/or bosses on one side and a layer of a foam which is laminated on the side of the thermoplastic resin body having ribs and/or bosses is produced by a press molding method. The method involves the steps of supplying a foam between upper and lower halves of a mold, one of which has plurality of slits and/or holes corresponding to the ribs and/or bosses to be formed, supplying a quantity of a plasticized thermoplastic resin melt between the already supplied foam and the half of the mold not having any slit or hole, moving at least one half of the mold during supplying the thermoplastic resin or just after completion of supply of the thermoplastic resin to press mold the thermoplastic resin so that the plasticized thermoplastic resin breaks at least a part of areas of the foam on the slits and/or holes of the half of the mold to flow into the slits and/or holes and to form the ribs and/or bosses.

Abstract: A two-staged or sequential reaction injection molding (RIM) method of manufacturing a glass fiber mat reinforced plastic part having at least one appearance surface in which a high viscosity RIM material and a low viscosity RIM material are sequentially injected into a mold cavity containing at least one reinforcing member of a glass fiber mat.