Abstract: A method of manufacturing a one piece, composite, hockey stick in an autoclave. A mandrel is provided which has a non uniform cross section. Pre-preg flags are wrapped around the mandrel. Provision is made so that when the wrapped mandrel is inserted in a pressure application tube, a portion of the wrapped mandrel is separated from the pressure application tube by one or more spacers. Pressure is then applied to the pressure application tube which in turn applies the pressure to the spacers. The spacers then apply the pressure to the wrapped mandrel to compact the pre-preg on the wrapped mandrel. Next the spacers are removed and the pre-preg is cured. Finally, a blade is formed around the pre-preg flag.

Abstract: The present invention relates to a fluororubber molded article obtained by subjecting a fluororubber composition to crosslinking by irradiation of ionizing radiation, wherein the fluororubber composition comprises: (i) a raw rubber having a metal element content of 1.5% or less and comprising a tetrafluoroethylene-propylene copolymer; and (ii) a prepolymer of triallyl isocyanurate. Also disclosed is a method for producing the fluororubber molded article.

Abstract: A roof module comprises an outer shell and a foamed inner shell. The outer shell has a rim including an edge of cut and the inner shell extends as far as on the edge of cut. There is also proposed a method of producing such a roof module.

Abstract: An apparatus for producing a tube having a round cross-section over a major portion of its length and intermediate its ends having a flattened oval cross-section. The apparatus includes an extrusion head with an extrusion die through which the tube is extruded. A pinching device, which includes opposed pinching elements, is arranged at the extrusion head so as to be selectively moveable together to press on and pinch the tube to produce the oval cross-section of the tube. The rollers are selectively moveable apart to not pinch the tube to enable the tube to be extruded round, whereby a round tube with an intermediate flattened oval shaped portion is produced.

Abstract: The method for manufacturing a part of a sports boot is one which essentially comprises the following steps:

Abstract: A method is provided for forming a decorative structure, for example a decorative glass sheet for a window panel. The method includes positioning a mould, having a contoured surface formed of a substantially inelastic material, against a sheet to form a mould cavity between the sheet and the mould; introducing a curable resin into the mould cavity; curing the resin to form a resin layer having a decorative surface which corresponds to the contoured surface of the mould; and releasing the mould to leave a laminate which comprises the resin layer adhered to the sheet.

Abstract: Pore-free rubber articles are prepared by dip-molding in a dipping medium that includes a vulcanizing agent, then by immersing the dip former in a heated liquid bath that is chemically inert. A particularly effective liquid bath is molten inorganic salt. In addition, the tensile properties of an article of vulcanized rubber can be improved to an unusually effective degree by immersing the already vulcanized article in a solution of a vulcanizing agent to cause the rubber of the article to absorb or imbibe the vulcanizing agent from the solution, and then immersing the rubber and the imbibed vulcanizing agent in a heated liquid bath to increase the degree of vulcanization.

Abstract: A method for forming a non-rubbing alignment film is provided. A polymer film is formed on a substrate. A plurality of microgroove structure is then formed on the surface of the polymer film by the molecular imprint method to prevent electrostatic damage and micro particle contamination produced by the conventional rubbing method.

Abstract: A method of forming a reinforced urethane product having a urethane wear layer and a integral reinforcing member. A reinforcing member is formed from a woven fiber material that has a shape generally corresponding to the desired urethane product, such as a composite urethane pipe. The reinforcing member is initially stiffened through application of a sizing compound. Once stiffened, the reinforcing member is inserted into a mold and a supply of urethane is forced outward toward the inner wall of the mold cavity such that the urethane penetrates into the woven fibers of the reinforcing member. The urethane is cured in the mold and the completed reinforced urethane product is removed from the mold for use. The liquid urethane is preferably forced outward within the mold through application of either a centrifugal force or the application of positive pressure.

Abstract: The invention relates to the formation of a smooth attractive surface on a composite molded article. More particularly, the invention relates to combining materials in a mold to result in a composite article having a finished surface. The invention relates to a method having improved efficiency and reduced emissions of hazardous air pollutants used in making composite molded articles comprising a reinforced thermosetting material having a thermoplastic exterior layer.

Abstract: The invention relates to the formation of a smooth attractive surface on a composite molded article. More particularly, the invention relates to combining materials in a mold to result in a composite article having a finished surface. The invention relates to a method having improved efficiency and reduced emissions of hazardous air pollutants used in making composite molded articles comprising a reinforced thermosetting material having a thermoplastic exterior layer.

Abstract: The invention relates to the formation of a smooth attractive surface on a composite molded article. More particularly, the invention relates to combining materials in a mold to result in a composite article having a finished surface. The invention relates to a method having improved efficiency and reduced emissions of hazardous air pollutants used in making composite molded articles comprising a reinforced thermosetting material having a thermoplastic exterior layer.

Abstract: This invention discloses a new technology related to cellulose fiber reinforced cement composite materials using cellulose fibers that are treated with inorganic and/or organic resins to make the fibers more hydrophobic, as well as other chemical treatments. This invention discloses four aspects of the technology: fiber treatment, formulations, methods and the final product. This technology advantageously provides fiber cement building materials with the desirable characteristics of reduced water absorption, reduced rate of water absorption, lower water migration, and lower water permeability. This invention also impart the final products improved freeze-thaw resistance, reduced efflorescence, and improved rot and UV resistances, compared to conventional fiber cement products. These improved attributes are gained without loss in dimensional stability, strength, strain or toughness. In some cases the physical and mechanical properties are improved.

Abstract: The invention relates to the formation of a smooth attractive surface on a composite molded article. More particularly, the invention relates to combining materials in a mold to result in a composite article having a finished surface. The invention relates to a method having improved efficiency and reduced emissions of hazardous air pollutants used in making composite molded articles comprising a reinforced thermosetting material having a thermoplastic exterior layer.

Abstract: A method and apparatus for removing fouling materials from the surface of a plurality of porous membranes (9) arranged in a membrane module (4) by providing, from within the module, by means (10) other than gas passing through the pores of said membranes, gas bubbles in a uniform distribution relative to the porous membrane array such that the bubbles move past the surfaces of the membranes (9) to dislodge fouling materials therefrom. The membranes (9) are arranged in close proximity to one another and mounted to prevent excessive movement therebetween. The bubbles also produce vibration and rubbing together of the membranes to further assist removal of fouling materials.

Abstract: The present invention relates to a method for manufacturing a large FRP member and has the following structure.

Abstract: A method for manufacturing a multi-piece golf ball provided with a core material and an outer layer molded on the surface of the core material, which comprises the steps of: i) simultaneously molding a pair of semispherical outer-layer-pieces that are composed of a composition containing semi-vulcanized rubber; ii) inserting a separately molded core material between the pair of outer-layer-pieces, and bringing the mouths of the pair of outer-layer-pieces into contact; and iii) vulcanizing the rubber contained in the outer-layer-pieces by press molding to obtain an outer layer that comprises a rubber composition on the surface of the core material.

Abstract: A method for forming an integrated trim plate in a single processing step. An appliqu é section is reversibly securing to the lower section of a mold. A layer of thermoplastic covering is applied onto and over the appliqu é section and lower section of the mold. A layer of foam is then injected between the thermoplastic covering and a substrate used to secure the integrated trim plate within a structure such as an automobile frame. The appliqu é section may be magnetically secured to the lower section of the mold or may be physically secured within a forming section of the lower section.

Abstract: The present invention provides cellulosic fibers having high wet bulk and methods for their preparation. In one embodiment, the invention provides cellulosic fibers catalytically crosslinked with glyoxal and, optionally, a glycol. In another embodiment, cellulosic fibers are crosslinked with a combination of glyoxal and a glyoxal-derived resin selected from the group consisting of a glyoxal/polyol condensate, a cyclic urea/glyoxal/polyol condensate, a cyclic urea/glyoxal condensate, and mixtures thereof.

Abstract: A liquid sealing agent used for automobile parts, electric parts, various kinds of machine parts and the like has encountered a problem that it is difficult to combine good oil resistance, heat resistance, adhesiveness and flexibility. The present invention provides a liquid gasket which improves these problems, and a material thereof.

Abstract: A cannula and method of forming a cannula by forming a cannula mandrel assembly having a nare mandrel, a main body mandrel and mouthpiece mandrel; heating the cannula mandrel assembly, applying a polymeric material to the cannula mandrel assembly to provide a desired material thickness on the mandrel assembly to form the cannula, curing the polymeric material of the formed cannula and extracting the mandrel assembly from the cannula by disassembly and removal of the mandrel assembly parts.

Abstract: A process for producing cables, in particular cables for the distribution of electrical energy or cables for telecommunications, more particularly, cables having at least one covering layer having a composition of high viscosity. cables with at least one covering layer are made from a polymeric composition having a mineral filler capable of imparting one or more specific properties to the cables. A production process includes conveying at least one conducting element inside of an extruder; feeding the polymeric material, optionally premixed with other components of the composition, into the extruder; filtering the material transferred and plasticized by the screw of said extruder; and depositing the material onto the at least one conducting element, the filtration operation being performed with a filtration efficiency greater than 0.8, preferably greater than 0.9.

Abstract: A method of treating a disc plate. has the following operations of: molding a mold disc plate through an injection molding; and spinning the mold disc plate at a high spin speed. The spinning operation has at least one of the following two sub-operations of: reducing a warp of the mold disc plate with a centrifugal force caused during the spinning operation, and reducing a temperature of the mold disc plate during the spinning operation. Moreover, an apparatus of treating a disc plate has: a conveyer for conveying a mold disc plate obtained through an injection molding; a disc bench for receiving the mold disc plate conveyed with the conveyer; and a spin driver for spinning the disc bench when a temperature of the mold disc plate is higher than 90° C., to thereby spin the mold disc plate.

Abstract: An over-the-needle catheter assembly includes a tube made of a flexible, biocompatible material. The tube has a proximal portion, a distal portion and a catheter tip positioned on the distal portion remote from the proximal portion. A lumen extends through the tube, substantially co-axially with the tube, from the proximal portion, through the distal portion and through to the catheter tip. The lumen cross-section at the proximal portion is larger than the cross-section at the distal portion. A shoulder is disposed in the lumen between the distal portion and the proximate portion. A catheter land, having a predetermined length, is defined as the portion of the lumen disposed in the distal portion of the tube between the shoulder and the distal end. A needle is disposed in the lumen and has a substantially circular cross-section. A discontinuity is located on the needle at a predetermined position with respect to the needle tip.

Abstract: The present invention provides improved medical introducer devices which incorporate a single or multi-layer PTFE peelable sheath. Devices of the present invention are suitable for use in inserting an ancilliary medical device, e.g., a catheter, guide wire and the like, into a patient. Methods of the present invention also are disclosed which employ a precision sintering process in order to produce sheaths having excellent tear properties and optimal peelability.

Abstract: A method is provided for manufacturing a saw filter in which a carrier plate 10 that can be separated into base plates 2 is respectively provided with interconnects in the base plate regions A and these are contacted to the active structures of SAW chips 1 in flip-chip technique. A metal foil 3 or plastic film 4 is placed onto the chip-equipped carrier plate 10 and, for example, is pressure and heat treated such that it envelopes each chip 1 (except for the chip surface facing toward the carrier plate 10) and lies hermetically tight on the carrier plate surface in regions between the chips.

Abstract: A method for manufacturing a composite structure is disclosed herein. The process uses a frame and selectively pressurizable forms. The forms define the interior members of the composite structure and frames define the exterior surface of the composite structure. Composite material is wrapped around the forms and the forms and composite material are placed in the frame. Selective forms are then pressurized and the composite material is co-cured together. A single piece co-cured fuselage incorporating a plurality of stiffeners is also disclosed in the application. The stiffeners are co-cured to the fuselage and may be in various patterns. The patterns may include an iso-grid pattern, and ortho-grid pattern, and a hoop-grid pattern.

Abstract: The invention relates to a method for producing a fiber-reinforced product based on epoxy resin.

Abstract: A low-cost, efficient method of preparing hierarchically ordered structures by filling a mold with a self-assembling mixture of hydrolyzed inorganic species and amphiphilic block copolymers and applying pressure to the mixture. Polymerization of the inorganic species within the mixture results in a mesoscopically structured material having molded features. A mesoporous material can be produced by subsequent thermal removal of the copolymers.

Abstract: A polymeric composition comprises a thermosetting resin and a polyolefin resin that cures to a semi-interpenetrating polymer network and is useful for producing plastic shipping and storage containers. The containers exhibit one or more friction surfaces, and can include fire resistance and other properties derived from property enhancing agents.

Abstract: An improved surface seeded exposed particulate concrete and method of making the improved surface seeded exposed particulate concrete is disclosed. Small particulate is sprayed over the upper surface of the concrete. The particulate may be sprayed using a material sprayer. The particulate may be uniformly sprayed to distances exceeding twenty feet. The particulate is mixed into a cement paste derived from the concrete mixture using floats. A surface retarder is then applied to cover the concrete surface. Subsequently, any surface film is washed from the surface of the concrete and the concrete is cured. The result is a surface seeded particulate with an exposed surface that is flat and is suitable for high traffic areas. The resultant surface may resemble stone, granite or marble.

Abstract: A multilayer helmet shell, and a method of making the same, are disclosed wherein inner and outer, structural, load-bearing semi-rigid layers jacket a viscoelastic, acceleration-rate-sensitive, microcellular foam core layer.

Abstract: A casting compound based on a resin which cures by a chemical reaction. The casting compound is suitable for insulation of electric components and contains an epoxy resin component, a silicone-containing component, a filler, and a thermal initiator. This casting compound is processible as a single-component system.

Abstract: The invention relates to a laminated shaped body having a defined layer structure, and to a method for its preparation, comprising a laminated shaped body (1) having a layer structure of the following order:

Abstract: The present invention comprises a mold having a wall with a recess defined therein and magnetic means, wherein an associated insert is adapted to be selectively held within the recess via the magnetic means, such that the insert is substantially flush with the wall. Using the magnetic inserts in both the upper and lower mold halves results in a tire identification number being imprinted on both sides of a tire during a curing cycle. The inserts are easily and quickly changed so that down time during production is minimized, tire appearance is improved, and eliminates tire scrap.

Abstract: Composite articles are prepared by a spray up operation. In a first step, a gel coat is applied onto a mold surface which has been optionally pretreated with a mold release coating. Next, a barrier coat is applied over the gel coat in the mold and thereafter a laminate formula is applied over the barrier coat. The laminate contains from 40-80% by weight paste and from 20-60% by weight reinforcing fibers. In a preferred embodiment, the paste comprises 90% or more by weight resin, up to 5% filler, and an initiator composition capable of initiating cure at a temperature of 50° C. or lower. In a preferred embodiment, the multilayer composite has a thickness of about 15 mm or less, and is useful as an automobile body panel. The laminate preferably comprises a low shrink, low density glass fiber filled polyester resin.

Abstract: Composite articles are prepared by a spray up operation. In a first step, a gel coat is applied onto a mold surface which has been optionally pretreated with a mold release coating. Next, a barrier coat is applied over the gel coat in the mold and thereafter a laminate formula is applied over the barrier coat. The laminate contains from 20-60% by weight reinforcing fibers. In a preferred embodiment, the multilayer composite has a thickness of about 15 mm or less, and is useful as an automobile body panel. The gel coat contains a curable polyester polyurethane acrylate resin, and the composite article has a surface that has high gloss and color retention after prolonged exposure to ultraviolet radiation. The laminate preferably comprises a low shrink, low density glass fiber filled polyester resin.

Abstract: Methods for molding a surround over a liner to form a composite shell are provided. The liner is placed in a mold and molten surround material is injected into the mold so as to surround the liner. A surface of a protrusion of the liner abuts the mold so that the surface is exposed and is substantially flush with an exterior surface of the surround after the composite shell is removed from the mold. Molten surround material flows into a slot in a perimeter of the protrusion so that when the surround material solidifies, a rib of surround material extends into the slot to form a pressure seal between the liner and the surround. An adhesive is applied to the liner before placing the liner in the mold for reducing relative movement between the liner and surround as the surround material solidifies and the liner and surround cool.

Abstract: Method and apparatus for molding an IOL comprising first and second mold halves each having an optic forming surface and haptic forming surfaces which together define a mold cavity in the shape of the IOL to be molded therein when the mold halves are assembled together. An injection port is formed and connects to one of said haptic forming surfaces or the optic forming surface wherethrough a polymerizable material is injected into the mold cavity. A venting port is formed and connects to another haptic wherethrough air escapes from the mold cavity as the polymerizable material is injected through the injection port.

Abstract: A method for manufacturing a molded structure in a press that includes a first mold and a second mold is provided. The second mold has a plurality of pressure actuators, with each pressure actuator capable of independent operation. The method includes the steps of positioning a preform having a thickness in the first mold, placing a quantity of resin adjacent the preform so as to create a resin reservoir, and then selectively actuating one or more of the pressure actuators apply pressure to the resin reservoir to force at least a portion of the resin reservoir to infuse through the thickness of the preform. The method may also include curing the resin-infused preform, and then removing the cured resin-infused preform from the first mold.

Abstract: Method and apparatus for constrained post cure inflation (CPCI), for improvement of tire uniformity, footprint shape factor, and tread wear. The method comprises the steps of: (1) initiating the method on a tire after the tire has been removed from a tire curing mold (preferably while the tire is still hot); (2) providing 360 degree circumferential tread restraint which holds the tread in an ideal tread shape, concentric to the axis of rotation and nominally perpendicular to the equatorial plane; (3) sealingly holding the beads concentric to, and equidistant from, the axis of rotation, and symmetrically spaced about the equatorial plane; and (4) inflating the tire to a controlled pressure, and holding the controlled pressure for a controlled time while the tread is restrained and the beads are sealingly held.

Abstract: A detoxification process for rendering three-dimensional objects formed by solid freeform fabrication techniques biocompatible for use in long-term dermal contact applications. The process nullifies cytotoxins normally present in objects formed by solid freeform fabrication techniques rendering such techniques as viable for the production of biocompatible devices such as stents, artery valve components, bone implant supports, pacemaker shells, surgical tools, and the like. In one embodiment, a custom hearing aid shell is produced by stereolithography from an acrylate photopolymer resin that was detoxified for long-term dermal contact application. The detoxification process makes three-dimensional objects created by solid freeform fabrication techniques available for products requiring biocompatibility.

Abstract: A composite pole including a structural member and a cured resin layer adjacent the structural member and defining an exterior surface. The composite pole can be manufactured by providing a mold, inserting a structural member within the mold to define a space between the structural member and the mold, filling the space between the structural member and the mold with a liquid thermosetting resin, curing the liquid thermosetting resin to define an exterior surface, and removing the cured liquid thermosetting resin and structural member from the mold. The composite pole can also be manufactured by casting a jacket onto an installed pole by applying a mold around the installed pole, filling a space between the installed pole and the mold with a liquid thermosetting resin, curing the liquid thermosetting resin to define an exterior surface, and removing the mold from around the cured liquid thermosetting resin and the installed pole.

Abstract: According to one embodiment of the invention, a co-cured resin transfer molding manufacturing method includes providing a tool having one or more tooling details and disposing one or more preforms proximate the one or more tooling details. The one or more preforms are either dry or binderized. The method further includes disposing a high permeability medium outwardly from the one or more tooling details, disposing a prepreg skin panel outwardly from the high permeability medium, disposing the one or more tooling details and the prepreg skin panel within the tool, injecting a resin into the one or more preforms, and curing the one or more preforms and the prepreg skin panel.

Abstract: A decorative cover for a post having a hollow body. The hollow body includes a continuous wall having a substantially uniform thickness, and a cavity having at least one undercut that would prevent a core from being pulled from the cavity. The decorative post can be manufactured by providing a mold, introducing a liquid thermosetting resin within the mold, rotating the mold about first and second axes, curing the liquid thermosetting resin as the mold is rotated to form a body with a substantially uniform wall thickness, and removing the cured liquid thermosetting resin from the mold.

Abstract: A method for underfilling and encapsulating flip-chip configured semiconductor devices mounted on a carrier substrate using stereolithography (STL) to form, in situ, at least semisolid dam structures of photopolymeric material about the devices to entrap liquid, unpolymerized resin between the devices and substrate. Prior to the STL process, the carrier substrate and mounted devices are immersed in the liquid polymeric resin, optionally with vibratory energy, to purge contaminants from between the device and substrate, and to fill spaces between the semiconductor devices and carrier substrate with the liquid resin.

Abstract: In a process for the production of conducting wires coated with cross-linked polyethylene in which a granulate made of polyethylene is coated with a fluid cross-linking agent, the coated granulate is melted in an extruder and extruded onto the electrical conducting wire, and the extruded film is cross-linked by being heated to a temperature over the decomposition temperature of the cross-linking agent, a mixture of granulate, meal, or powder made of a polyethylene homopolymer and a polyethylene copolymer is coated with the cross-linking agent and stabilizer, with the portion of copolymer in the coating on the cable lying between 1 and 8 weight percent.

Abstract: Three dimensional objects are formed by scanning a liquid thermosensitive resin with a laser beam causing imagewise heating of the resin. Because thermosensitive compositions do not obey the law of linear superposition, the problem of stray exposure is eliminated allowing the thermal polymerization of any point within the volume of the liquid without affecting adjacent points.

Abstract: A shoe outsole (1) is formed of a polymer, e.g. rubber, composition including a short fiber. The amount of the short fiber to be blended is 2 to 40 parts by weight for 100 parts by weight of a base polymer, e.g. rubber. The short fiber has an orientation in an almost horizontal direction. An orientation angle to the horizontal direction of the short fiber is 30 degrees or less. The short fiber may have an orientation in almost horizontal and lateral directions. Moreover, the short fiber may have an orientation in almost horizontal and longitudinal directions. The outsole (1) is excellent in a strength.

Abstract: This invention relates to low-density thermosetting sheet molding compounds (SMC) comprising a treated inorganic clay, a curative, a low profile agent, a reinforcing agent, and preferably a low-density filler. The thermosetting SMC are used to prepare exterior and structural thermoset articles, e.g. auto parts, panels, etc.