Abstract: The present invention is directed to a low-linting laminated nonwoven fabric comprised of a reticulated film layer and an associated absorbent layer, which is suitable for medical, hygiene, and industrial applications, wherein said nonwoven fabric performs to absorb liquids, such as human exudates, while significantly reducing the amount of particulates released. The reticulated film of the invention is comprised of a series or network of small, geometrically profiled, depressed areas, wherein the depressed areas of the film are able to collect liquids such as blood, and channel such liquids through openings in the film layer into the associated absorbent layer.

Abstract: A formed sheet of thermalconductive silicone gel is provided. The formed sheet has (i) a thin film reinforcement layer hardened into rubber only in a surface layer on the upper side, the lower side, or both sides, (ii) a sheet-shaped reinforcement material buried in a surface layer of the upper or the lower side, or (iii) a sheet-shaped reinforcement material buried in a surface layer of the upper side or the lower side of the sheet, and a thin film reinforcement layer hardened into rubber in this surface layer or in a surface layer on both sides of the sheet. The formed sheet of thermalconductive silicone gel has low compressibility, high strength, is easy to handle during the mounting process, and can be reused after its contact compression between a chip and a heat sink has been released.

Abstract: A dispenser for strip materials, e.g. hook and loop fastener material, which automatically finds formations in a continuous fastener strip during its dispensing and, at that point in the dispensing procedure, produces a resistance to the remaining supply, that enables parting of the lead unit from the remaining supply, thus dispensing a discrete unit. The dispenser has a receptacle to hold the supply of fastener strip material; it employs a retarding device to provide light drag against the motion of the strip as the leading strip unit moves from the dispenser in response to pull by a user. A detent downstream of the retarding device engages a corresponding formation in the strip material to resist movement of the remaining strip material, so that the strip ruptures along a line of weakness under a user's tension. Also disclosed are dispensable fastener strips of various forms, some advantageously formed by use of needled bat, and methods of forming the fastening strips.

Abstract: A composite touch fastener has an elongated, sheet-form resin substrate, a fibrous loop strip partially encapsulated in, or otherwise permanently attached to, resin of the substrate, and an array of loop-engageable fastener elements integrally molded with resin of the substrate. The loop strip forms a discrete band of hook-engageable, free-standing loops along the length of the substrate, and has a substantially constant fiber density across its width. The array of fastener elements is arranged in a discrete band of fastener elements extending longitudinally along the substrate. The fastener product is useful as a repeated use bag closure, with a pair of grooves and a graspable rib integrally molded into the substrate between the fastener elements and loops. The center portion of the closure seals the bag until it is torn away to expose the mating bands of loops and fastener elements.

Abstract: The specification discloses a method for extrusion coating multiple substrate webs on a dual or tandem extruder system having multiple extruder stations. The method includes as an initial step providing a first substrate web and a second substrate web wherein each of the first and second substrate webs has a coating side and an underside. The webs are temporarily joined to form a composite web wherein the respective coating sides face outward and the respective undersides face one another. A first polymer coating is extruded on the coating side of the first web at a first extrusion station. Subsequently, a second polymer coating is extruded on the coating side of the second web at a second extrusion station. The extrusion coated first and second webs are then separated. The invention enables more efficient and economical use of dual or tandem extruder systems.

Abstract: A method of manufacturing a single use processing substrate includes the step of extruding a first layer having ridges and troughs between the ridges. The method further includes the steps of placing a second layer into the troughs while the first layer is pliant and compressing the pliant ridges so that the second layer is bound into the troughs.

Abstract: A manufacturing apparatus and method for multiple containment tubing produces continuous, nested tubing, or one tube within another tube, without having to fix the space between the tubes or position them concentrically. Consequently the tubing is very flexible and with uniform wall thickness. Moreover, because the inner surface of the outer tube and the outer surface of the inner tube are ribless, these kinds of features cannot interfere with the bending and twisting and the operation of the tubes comprising the tubing. The space between the tubes, or free space, has sufficient volume to contain a range of contents of the inner tube, as a safety containment device, if the inner tube ruptures, cracks, or otherwise breaks.

Abstract: A method and apparatus for treatment of magnetic tape are disclosed. Magnetic tape may be dispensed from a first reel and taken up from a second reel, with the segment between the first and second reels held in tension while heat is applied. Magnetic tape that has been so treated will deform less during actual use.

Abstract: Shaped load-carrying structures are fabricated using bamboo linear fibers with a compatible bonding material and synthetic polymers such as polyesters, epoxies, and polyolefins. The structures are manufactured by coating at least one of bamboo culms, split bamboo culms, bamboo fiber tape, or prepared bamboo fibers with a bonding material to produce a core. The core is then combined with a polymer matrix and extruded or molded to form a structure having the desired shape. The structures compare favorably with wood, steel, and concrete regarding strength, longevity, price and ability to withstand earthquakes. The structures may be used as beams, columns, telephone poles, marine piles and pallets.

Abstract: An economical, three-dimensional reusable plastic article that is resistant to damage and stress caused by a variety of factors is disclosed. The plastic article comprises a polycarbonate/polyester plastic blend, and optionally further comprises a plastic insert. The polycarbonate/polyester blend may be fused directly to the optional plastic insert. Alternatively, the polycarbonate/polyester blend may be tied to the optional plastic insert through the use of an adhesive layer and/or a tie layer.

Abstract: The manufacturing apparatus of a resin molded product has a feed block that sets a layer configuration of the resin molded product obtained by molding a plurality of molten resins. The feed block includes a feed block body having a through hole, and a plurality of replacement blocks that are removably fitted into the through hole and have layer configuring passages corresponding to different layer configurations. A replacement block before change is pushed out of the through hole by a replacement block having a layer configuring passage corresponding to a layer configuration after change, thereby changing the layer configuration. This allows an easy change of a layer configuration, and in particular, prevents degradation of resin due to heat or oxidation, and reduces time for the change and a material loss even when a significant change of the layer configuration such as a change of a layer arrangement is performed.

Abstract: An in-mold and in-line decorating method is disclosed which, using a single sheet layer, allows the placement of the highest possible quality graphics into the surface of products made from a variety of moldable thermoplastic, thermoset, and vulcanizable materials using a variety of molding processes. The methods also provide new or improved capabilities for product identification, safety, and serialized tracking.

Abstract: A method of manufacturing a guidewire having a discrete length. The method includes the steps of feeding a first end of a corewire into an extrusion device, gripping the first end of the corewire with a gripping apparatus, and extruding a first extrusion material onto an outer surface of the corewire while the gripping apparatus pulls the corewire through the extrusion device to form an extrusion jacket on the outer surface of the corewire. The corewire has a predetermined length corresponding to a length of the guidewire.

Abstract: Described is a process for producing a microstructured composite article including the steps of: providing a tool with a molding surface that is suitable for forming a microstructure; applying to at least a portion of the molding surface a plurality of lines of a flowable, curable resin composition; contacting the resin composition with a substrate; curing the resin composition; and, transferring the resin composition to the substrate. Alternative embodiments include heating the molding surface or resin composition, or both, to aid in the flow of the resin composition. The advantage of this process is that is that the microstructured composite articles are able to be produced at high speed and are free of air bubbles.

Abstract: A composite web including an elastically stretchable web and an inelastically stretchable web bonded together is stretched on a course defined between at least two nip roll pairs to obtain an elastically stretchable composite sheet. The composite web is brought into contact with a peripheral surface of at least one roll of each nip roll pair over an area of the peripheral surface defined by a quadrant of this roll's circular cross section.

Abstract: The joinery element comprises at least one extruded profile (400) made of an extrudable organic material reinforced by at least one reinforcing tape (401) consisting of continuous glass filaments and an organic material. It is characterized in that the tape is formed from continuous yarns based on continuous glass filaments and filaments of thermoplastic organic material, said yarns being brought together so as to be mutually parallel.

Abstract: The present invention provides a process which in a preferred embodiment includes the steps of.

Abstract: An apparatus for extruding pencils and a method of using the apparatus. A core material (6) is extruded from an extruder (1) and forms a catenary loop in a cooling zone (4). The core material is carefully cooled at ambient temperature before being cooled and straightened at a cooling unit (5). The core material is coated in a crosshead and die assembly (8) with sheath material extruded from extruder (10). In a further cooling zone (12) the sheath material expands under the action of a blowing agent and the extrudate is sized by a calibrator (13).

Abstract: Methods of fabricating medical vascular catheters adapted to be inserted into a blood vessel from an incision through the skin of a patient for introducing other devices or fluids for diagnostic or therapeutic purposes and particularly methods for fabricating such catheters with catheter bodies having catheter sections of differing flexibility are disclosed.

Abstract: A fastener for engaging loops includes a base with a field of fastener elements molded with and extending from the base. The fastener elements are constructed to engage loops of a mating loop component to form a releasable fastener. The fastener elements comprise hooks and spikes, interspersed among the hooks, which extend at an acute angle from the base. By arranging the hooks and spikes in differing directions on the base, increased shear strength is provided in corresponding directions. Molds and methods for forming the fastener are also disclosed.

Abstract: An extrusion method and an extruder, the material to be extruded being fed with a material feeding device (1) into a radial pump unit included in the equipment. The radial pump unit comprises conical gearwheels (2) which are adjacently positioned and rotate in opposite directions. The radial pump unit transfers the material in an annular flow into the extruder's nozzle (4). Additional material (20) can be supplied into the product through the radial pump unit.

Abstract: Component thermoplastic synthetic fiber having inelastic extensibility as well as fiber diameter of 5-20 &mgr;m constituting a fibrous web is obtained by melt spinning a mixture of two or more thermoplastic synthetic resins each having a number-average molecular weight in a range of 20000-150000 at a draft ratio of 200-2300. In the case of the mixture consisting of at least two types of thermoplastic synthetic resin Ra, Rb having number-average molecular weights Ma, Mb, respectively, wherein a ratio Ma/Mb is 1.1 or higher, Ra is of 20-80 wt %, Rb is of 80-20 wt % and a sum of Ra and Rb makes up 50-100 wt % of the mixture.

Abstract: The present invention provides a process for manufacturing an molded article that involves the occurrence of reduced number of gels and less corrosion of the molding equipment in high-temperature molding, particularly extrusion molding onto such substrate as paper; an extruded article; and an olefin polymer composition suitable therefor.

Abstract: A method for capping a stem web including passing the stem web through a first nip against a first heated nip roll so as to partially cap the stems; cooling the web; and passing the stem web through a second nip against a second heated nip roll to completely cap the stems to a diameter “D”. In preferred embodiments the two nips are on opposite sides of a larger central cooled roll positioned between the heated rolls. Preferably, the reaction forces between the rolls are measured and controlled at each end of each other heated rolls. The invention is particularly adapted to making abrasive particles that are attached to a driving mechanism via headed stem fasteners formed by the method.

Abstract: Methods of forming a releasable strap of hook and loop material and resulting products are shown. The strap has a hook side and a loop side, the hooks being formed of synthetic resin on a mold roll defining a multiplicity of hook mold cavities. A method is shown comprising providing a mold roll having at least one relatively wide hook molding region over which hook mold cavities are distributed and, preferably at least at one side, a relatively narrow region devoid of hooks, and utilizing the mold roll to form a continuous sheet of material having on one side a wide band of loop-engageable hooks and preferably an adjacent relatively narrow band devoid of hooks, providing loops on the opposite side of the material, and repeatedly cutting the material at a substantial angle to the machine direction.

Abstract: A manufacturing process of a construction strip includes the steps of (a) evenly mixing a predetermined amount of paint, talcum powder and volatile agent to form a plaster form coating mixture; (b) gradually passing an elongated strip body through an extrusion passage of an extrusion mold, wherein a uniform surrounding clearance between an interior wall of said extrusion passage and said strip body; (c) continuously injecting said coating mixture into said extrusion passage of said extrusion mold in order to fill said surrounding clearance, so that a uniform protective coating is evenly coated on said longitudinal surfaces of said strip body while said strip body is extruded from said extrusion mold; and (d) drying said protective coating to form a hard and durable protective coating shell integrally wrapped around said strip body.

Abstract: A fastening component of a separable fastener is molded out of two separate flows of resin joined under pressure in a nip as the fastening elements are molded in cavities of a cavity roller. The joined flows of resin travel about the cavity roller while being cooled, and are then passed about a stripping roller to pull the formed fastener strip from the cavity roller.

Abstract: An extrusion molding apparatus for a product having a wood pattern and an extrusion molding method are disclosed, in which a second synthetic resin containing a wood powder of 80˜120 meshes at a predetermined ratio is fed to a die through a second extruder and then is coated on a surface of the product, thereby providing an esthetic surface and an improved durability.

Abstract: Apparatus for manufacturing a multicolor slide fastener includes an upper die 110, a lower die 120, and a plurality of unit fastening teeth-forming slots 101 formed in a lengthwise direction. Molding material-injecting passages and a plurality of sprue holes 102 are provided for injecting the molding materials S into the slots 101. Inclined passages 201 and 202 are connected to the molding material injecting passages respectively, for carrying the molding materials S from a raw material source. Heaters 240 and heat sensors 241 heat the passages 201 and 202. Pressing means 300 press the molding materials S into the inclined passages 201 and 202. Valves 400 control injection of the molding materials S into the sprue holes 102 of the upper die 110.

Abstract: Disclosed is a process of forming a prepreg material having substantially no voids. According to the process of the invention, the reinforcing material is heated to a temperature above the temperature of the impregnating resin. The prepreg formed has substantially no voids and does not require lengthy consolidation when formed into useful articles.

Abstract: A process and apparatus for producing fastener elements comprising a base and a field of fastener elements molded with and extending from the base. The method includes applying molten resin under pressure to the surface of a mold roll, the mold roll consisting of a pair of adjacent molding rings. A first molding ring defines cavities that form base portions of the fastener elements and serve as channels allowing molten resin to pass through and into cavities defined by a second molding ring thus molding distal portions of the fastener elements. The fastener elements are constructed to engage loops of a mating loop component to form a releasable fastener. The fastener elements comprise hooks and spikes, interspersed among the hooks, which extend at an acute angle from the base. By arranging the hooks and spikes in differing directions on the base, increased shear strength is provided in corresponding directions.

Abstract: A linear bearing includes a substrate and a strip of wear-resistant material. The strip is impregnated with a resin, and the impregnated strip is pultrusion bonded onto the substrate. The impregnated strip is thereby compressed upon and directly bonded to the substrate.

Abstract: The present invention is direct to angular border on three dimensional sheet material and method of producing. This invention is producing an attractive and finely finished article.

Abstract: A method of making a spunbond nonwoven fabric embodying the principles of the present invention contemplates use of an aliphatic-aromatic polyester resin, such as Eastar BioGP, for formation of fabrics which exhibit desirable softness and drapeability characteristics, excellent gamma-radiation stability and, where required, desirable elasticity. In distinction from previous formation techniques, the present invention contemplates formation of such fabrics by spunbonding at relatively low filament spinning speeds, thus facilitating practice of the present invention with generally available and conventional spunbonding equipment.

Abstract: Method for production of conducting element, which conducting element consists at least of an elongated electricity conductive, in which several electric components (2), bringing out the lighting operation or like according to the use of the conducting element, are being attached to one after another in the longitudinal direction (s), whereafter the said entirety is being surrounded by a casing part (3) protecting the same. The conducting element is being manufactured from an essentially flat conductor part (1; 1′), such as a band, a stripe or a like, into which there has been attached electric components (2′), such as probes, LEDs, resistors and/or the like by arranging the same, preferably throughout built-in when viewed in a cross section with a casing material (3′) forming the said casing part (3), by exploiting a continuous manufacturing process, such as extrusion or like. The invention relases to a conducting element to be manufactured by the method, also.

Abstract: The present invention provides a process for manufacturing an molded article that involves the occurrence of reduced number of gels and less corrosion of the molding equipment in high-temperature molding, particularly extrusion molding onto such substrate as paper; an extruded article; and an olefin polymer composition suitable therefor. The olefin polymer composition comprises an olefin polymer containing 5 to 200 ppm of aluminum, as aluminum atom, 0 to not more than 1,000 ppm of a phenolic stabilizer and 50 to 2,000 ppm of a phosphoric stabilizer.

Abstract: The invention is an apparatus and method for producing a hybrid boron reinforced polymer matrix composition from powder pre-impregnated fiber tow bundles and a linear array of boron fibers. The boron fibers are applied onto the powder pre-impregnated fiber tow bundles and then are processed within a processing component having an impregnation bar assembly. After passing through variable-dimension forming nip-rollers, the powder pre-impregnated fiber tow bundles with the boron fibers become a hybrid boron reinforced polymer matrix composite tape. A driving mechanism pulls the powder pre-impregnated fiber tow bundles with boron fibers through the processing line of the apparatus and a take-up spool collects the formed hybrid boron-fiber reinforced polymer matrix composite tape.

Abstract: A preparation of thermal contraction sleeve is disclosed. In this method, polyethylene fibers are elongated by 850%˜1,200% and are exposed to a radiation of 2.5˜3.5 Mrads, thus being cross-linked. The first surface of a fabric sheet, made of the polyethylene fibers, is exposed to a voltage of 20,000˜25,000 V while passing over a plurality of rollers, thus being modified at the first surface. A first matrix sheet, melt-extruded at a temperature of 300° C.˜380° C., is formed on the modified first surface of the fabric sheet, prior to an integration of the first matrix sheet with the modified surface of the fabric sheet. The integration is accomplished by a first elastic roller and a first cooling roller. The second surface of the fabric sheet is processed in the same manner as that described above. A second matrix sheet is layered on the modified second surface of the fabric sheet, thus forming a fabric-matrix layered body.

Abstract: The present invention discloses the extrusion of a thermally conductive polymer composition containing a continuous core of carbon fiber reinforcing. The material is created in a machine that is configured to hold a spool containing a continuous strand of carbon fiber core material. The carbon fiber strand is unrolled off the spool and is fed into a preheating chamber to bring the temperature of the strand to a pre-designated level. The strand is then fed into a port in an extruding head on a pressure extruding machine. A molten polymer matrix is also fed into the extruding head thereby extruding the polymer matrix onto, around and between the individual carbon fibers contained in the strand. The singular extruded composite strand that emerges from the extrusion head is then cooled and deionized before cutting the composite strand into pellets of a desired length for further processing and use as injection molding feedstock.

Abstract: An embossing and adhesive application process including the steps of: applying an adhesive to a first patterned embossing roll which is engaged with a second patterned embossing roll having a complementary pattern to the first embossing roll; passing a web of sheet material between the first and second embossing rolls at a tangential line speed to simultaneously emboss the web and direct the adhesive against the web; and splitting the adhesive such that at least some of the adhesive remains on the first embossing roll and some of the adhesive remains on the web to form an adhesive pattern between embossments on the web.

Abstract: A manufacturing method for a resin formed element capable of exhibiting an advanced design quality while reducing the manufacturing cost is provided. The method comprises the steps of printing a pattern on a reverse side of a thermoplastic film to form a printed pattern layer, printing and curing an ultraviolet curable or thermosetting resin in part of the surface of the thermoplastic film to form an ultraviolet cured or thermoset resin layer, burying this ultraviolet cured or thermoset resin layer in the thermoplastic film, and forming a resin base material from the printed pattern layer side of the laminated element to adhere and integrate, so as to produce a difference in distance from the surface between the region corresponding to the ultraviolet cured or thermoset resin layer of the printed pattern layer and other region, and finally peeling the ultraviolet cured or thermoset resin layer from the thermoplastic film.

Abstract: The present invention provides a process which in a preferred embodiment includes the steps of.

Abstract: A composite with a thermoplastic matrix and fiber reinforcement is made by rotation of an exit die about a roving of continuous fiber in the presence of a thermoplastic melt. The rotation causes opposing inner and outer helical flow conditions which reduce the melt viscosity of the polymer by shear thinning while dragging and directing the polymer into the fiber roving thereby wetting and dispersing the fiber. A composite structure is formed with a polymer rich skin and a core region of unidirectionally aligned polymer and fiber. The polymeric skin is composed of helically aligned polymer chains which are coiled by the rotation around the core to compress the core region and enhance fiber wet out.

Abstract: The present invention concerns a process for producting cables, in particular cables for the distribution of electrical energy or cables for telecommunications, more particularly, cables having at least one covering layer comprising a composition of high viscosity. More particularly, the present invention concerns cables having at least one covering layer comprising a polymeric composition comprising a mineral filler capable of imparting one or more specific properties to the aforesaid cables. In accordance with the present invention, said production process comprises the stages of: conveying at least one conducting element inside of an extruder; feeding the polymeric material, optionally premixed with other components of said composition, into said extruder; filtering the material transferred and plasticized by the screw of said extruder; depositing said material onto said at least one conducting element, the filtration operation being performed with a filtration efficiency greater than 0.

Abstract: Process for manufacturing a composite tape (10), consisting in bringing together and in consolidating a multiplicity of continuous yarns (11), characterized in that yarns (11) based on a thermoplastic and on reinforcing fibers are entrained and brought together in a parallel manner in the form of a sheet (12) which enters a zone in which it is heated to a temperature reaching at least the melting point of the thermoplastic and then passes through a rotating impregnation device (80) in order to distribute the molten thermoplastic uniformly and guarantee that the reinforcing fibers are completely impregnated by the latter; next, the sheet (12) is introduced into a shaping and centering device (100) so as to obtain a tape (13) formed by bringing the yarns (11) together so as to be touching, thereby creating transverse continuity; the tape (13) is cooled in order to consolidate the yarns by freezing the thermoplastic and its dimensional characteristics and its appearance are set in order to deliver the said compo

Abstract: The present invention relates to a method intended for heat insulation of a pipe (1), comprising the following successive stages: depositing, on the outer surface of the pipe moving longitudinally, a thickness (3) of an insulating material made of elastomer having an elastic type behaviour, substantially without irreversible plastic deformation, forming at least one circumferential slot (4) in the thickness of the material, substantially orthogonally to the axis (2) of the pipe, coating the insulating material thickness with a sealed sheath. In a variant, the slot is machined in the thickness of the insulant. The invention further relates to a heat-insulated pipe.

Abstract: A thermoplastic laminate plank is described wherein the thermoplastic laminate plank comprises a core, a print layer, and optionally an overlay. The core comprises at least one thermoplastic material and has a top surface and bottom surface wherein a print layer is affixed to the top surface of the core and an overlay layer is affixed to the top surface of the print layer. Optionally, an underlay layer can be located and affixed between the bottom surface of the print layer and the top surface of the core. In addition, a method of making the thermoplastic laminate plank is further described which involves extruding at least one thermoplastic material into the shape of the core and affixing a laminate on the core, wherein the laminate comprises an overlay affixed to the top surface of the print layer and optionally an underlay layer affixed to the bottom surface of the print layer.

Abstract: A filter medium has a function member accommodated between two fiber layers. A production method for manufacturing a filter medium includes the steps of: preparing a first fiber layer having a shape identical to that of a side surface of the filter medium; disposing a function member on a surface of the first fiber layer; and forming a second fiber layer by spinning partially melted fibers onto the function member disposed on the surface of the first fiber layer. Therefore, it is unnecessary to carry out press-forming in a state in which the function member is sandwiched between nonwoven fabrics, and a countermeasure to prevent the function member from falling out and a countermeasure to prevent the nonwoven fabric from being torn by the function member are unnecessary.

Abstract: Compositions and methods of preparing ceramic filaments are provided.

Abstract: Systems and methods for the manufacture of reinforced, three-zone, microporous phase inversion membrane having any one of a plurality of different possible pore sizes in any of the three zones from at least a single mother dope batch is disclosed. The systems and methods include formulating at least a single mother batch of dope in a vessel preferably maximizing the non-solvent to solvent ratio for a given weight percentage of polymer for use in a microporous phase inversion membrane production operation to produce three-zone phase inversion membranes having one of a plurality of different predetermined pore sizes in any or all of the three zones. The at least one mother dope batch is controllably formulated in at least one vessel such that the temperature of the dope does not exceed a predetermined maximum mixing temperature and is maintained at a relatively low temperature (lower than the mixing temperature) suitable for storage.