Abstract: Microporous film products permeable to moisture vapor and which act as barriers to liquid are made by a high speed method. Such microporous products are made at speeds in the order of above 500 fpm to about 1200 fpm. Thermoplastic polymers are melt blended to contain about 35% to about 45% by weight of a linear low density polyethylene, about 3% to about 10% by weight of a low density polyethylene; about 40% to about 55% by weight calcium carbonate filler particles, and about 2% to about 6% by weight of a triblock polymer of styrene.

Abstract: A polypropylene laminated film containing a crystalline polypropylene layer and, laminated on at least one side of the layer of the crystalline polypropylene, a layer of a copolymer of propylene and at least one .alpha.-olefin of from 4 to 10 carbon atoms having a specific composition, melt flow rate and molecular weight distribution in which the .alpha.-olefin content in the cold xylene soluble portion of the random copolymer is less than 1.7 times the .alpha.-olefin content in the copolymer and the random copolymer satisfies the mathematical expression,B.ltoreq.1.05A-10,wherein A is a weight percentage of the content of said at least one .alpha.

Abstract: An apparatus and related method for manufacturing a full-fashioned glove from similar or dissimilar polymeric material includes a controller that actuates various components in the apparatus, a thumb mold that forms a thumb portion from two layers of a first material and a hand mold which forms a plurality of fingers and a cuff from the first material and a second material. Both the thumb mold and hand mold have appropriate cavities with apertures therethrough wherein a vacuum source, actuated by the controller, draws the appropriate material toward the surface of the mold prior to closure thereof. Upon closure of the molds, a fusing element is energized by the controller and the materials are fused to one another to form the appropriate portion of the full-fashioned glove. After the glove is removed from the remaining materials, it can be employed in various types of manufacturing industries.

Abstract: A method for a production of a laminated metal sheet which can reduce the ratio of pinholes being caused in a synthetic resin film (the incidence of pinholes) upon deep draw forming of the laminated metal sheet involves superimposing the heated metal sheet on the synthetic resin film unwound from a film roll, passing the heated metal sheet and the synthetic resin film through a pair of laminating rolls to laminate the two together, the laminating process being carried out in a laminating chamber in which the concentration of fine particles having a mean particle diameter exceeding 3 .mu.m is kept below 100 pieces/ft.sup.3.

Abstract: The present invention relates to a method and apparatus for ultrasonic welding of material webs which move between at least one ultrasonic horn of an ultrasonic welding arrangement and an anvil holder having a determined pattern of anvils, so as to enable the webs to be welded at high web speeds. The weld width of each ultrasonic horn in the ultrasonic welding arrangement is determined in accordance with the intended highest travel speed of the webs.

Abstract: An improved pull-roller system for a calender machine having at least a pair of main rollers and a pair of pull-rollers. The nip of the pull-rollers is located at an elevation below the nip of the main rollers. In addition, the axis of the top pull-roller is offset with respect to the axis of the bottom pull-roller.

Abstract: A distinctive technique for creating a shaped article (90, 100) includes a pivoting of a first portion (56) of a cooperating web layer (26) substantially about a first joining region (40) to lie laterally adjacent to a first portion (52) of a primary web layer (24). The cooperating web layer (26) has been positioned in a superposed facing relation with the primary web layer (24) with the primary web layer having a first and second, lateral side edge regions (32, 34), and the cooperating web layer having third and fourth, lateral side edge regions (36, 38). The first side edge region (32) of the primary web layer (24) has been synchronized to the third side edge region (36) of the cooperating web layer (26) along the first joining region (40), and the second side edge region (34) of the primary web layer (24) has been synchronized to the fourth side edge region (38) of the cooperating web layer (26) along a second joining region (42) to provide a synchronized laminated web (44).

Abstract: The process for producing a resin-metal laminate material of the present invention is characterized by comprising providing a heating zone for a metal substrate, a die for feeding a thermoplastic resin in a film form, a pair of temperate laminate rolls for adhering the thermoplastic resin to at least one surface of the metal substrate, and quenching means for quenching the resulting laminate material, along a passage for the metal substrate, supporting and conveying a molten film of the thermoplastic resin from the die with the corresponding temperate laminate rolls and feeding it to a nipping position between the temperate laminate rolls, and fusing the thin film of the thermoplastic resin to at least one surface of the heated metal substrate by means of the temperate laminate rolls. This method can lead to the formation of a uniform and thin-film resin coating on the metal substrate at a high speed, and in addition, the formed resin film has very high intimate adhesiveness and film properties.

Abstract: A method for forming an insulation product includes centrifuging irregular glass fibers using a rotary process, collecting the fibers as a pack, continuously withdrawing a portion of the fibers from the pack to generate a continuous yarn of fibers, and pneumatically propelling the yarn toward a receptacle, such as an insulation cavity, to form an insulation product. Also, a strand of continuous, irregular textile fibers can be payed out from a wound package and pneumatically propelled toward a receptacle, such as an insulation cavity, to form an insulation product.

Abstract: A repositionable, adhesively mounted, blank signage sheet including (i) a sheet having imprintable first and second major surfaces which are essentially void of communicative indicia, (ii) repositionable adhesive strips disposed on the first major surface of the sheet along each of the margins, with each adhesive strip offset from the edge of the sheet so as to define adhesive-free tabs along the first and second edges of the sheet, and (iii) release liners covering the marginal adhesive strips.

Abstract: A method of continuously forming a composite structure comprised of a three-dimensional fabric including first and second sheets of fabric which face each other and which are connected by intermediate yarn, the method including providing a continuous supply of three-dimensional fabric; impregnating the three-dimensional fabric with resin which is thermoreactive; mating the three-dimensional fabric with a first outer strip which contacts the first sheet of fabric, and a second outer strip which contacts the second sheet of fabric to form a stratified structure containing the impregnated three-dimensional fabric; feeding the stratified structure along a path in a feed direction X which is straight; heating the stratified structure to at least partially polymerize the resin between the first outer strip and the first sheet of fabric and between the second outer strip and the second sheet of fabric, while the resin impregnating the intermediate yarn of the three-dimensional fabric remains substantially in the pla

Abstract: A process and apparatus for controllably registering two continuously moving layers of material is provided. One of the layers is an elastic film and has a plurality of reference marks representing a plurality of separate and distinct components, and the other of the continuously moving layers has a respective plurality of different components thereon. The process and apparatus controls the distance between reference marks to a selected distance, and controllably registers each reference mark to a respective component of the continuously moving second layer.

Abstract: A separator sheet is formed of a plastic material and has a number of ribs formed on one side thereof. The ribs extend in the direction in which the separator sheet is fed. The sheet is overlaid with a glass mat, and a laminated member obtained thereby is moved into the region between a pair of driving rolls. After being sandwiched by the driving rolls, the laminated member is fed into an envelope apparatus. In an adhesive coating step, a hot melt adhesive is coated on one side of the glass mat. The adhesive is coated at portions C corresponding to the base sections between the ribs of the sheet, in such a manner that the coated adhesive forms a line extending in the longitudinal direction of the glass mat. In a stacking step, the sheet and the glass mat are stacked one upon the other. In the pressing step, the laminated member is sandwiched between the driving rolls, and the adhesive-coated portions of the glass mat are tightly pressed by the ribs provided on the circumferential surface of the driving roll.

Abstract: A card package assembly and method of manufacture thereof allow simple and inexpensive production of desirable products, particularly useful for telephone debit cards. A web of card stock is imaged on both first and second faces with indicia (preferably variable and non-variable), and the faces are spot coated with plastic at spaced locations equal to the length of card package ultimately separated from the web. A card is formed from or out of each of the spot coated plastic locations, by die cutting, or with lines of weakness such as perforations. The form is narrower at the card, and adhesive patterns outside the card portions hold other panels of the package together once folded over to sandwich the card between other panels. The cards may be produced from a web one package wide, or from a web two or even more packages wide. A bang tail is preferably provided connected to the card, and of the same width, with a perforation separating the bang tail from the card and coupon indicia imaged on the bang tail.

Abstract: A visual lamination for the purpose of finishing the surface of printed and other products by applying laminating films by means of a 100% adhesive system, for which the adhesive-coated laminating film is laminated with a heated laminating roller onto the product, a thermoplastic adhesive being applied immediately in front of the laminating roller on the laminating film by means of a fishtail nozzle, and an apparatus for producing such a visual coating.

Abstract: The method for joining a metal foil with a synthetic material foil comprises unwinding both materials from a supply roll each, and subjecting the synthetics foil, prior to the application of an adhesive, to a corona discharge on a narrow border region. The metal foil and the synthetic material foil are then pressed together and irradiated by ultraviolet radiation causing polymerization of the adhesive. The composite foil material thus obtained is transferred to a further processing station. There the dental matrix can be punched out of such a composite sheet material, having a high tensile strength, whose metal portion can easily be inserted between two adjacent teeth whereas the transparent synthetic material part allows light curing of the dental filling material.

Abstract: The present invention relates to a process for the continuous production of a multi-layer web comprising an exterior covering and a nonwoven material disposed underneath. According to the present invention, a nonwoven material which has been prebonded is used as the starting product, and the steps of additional bonding, calibrating, and smoothing of the nonwoven material and of laminating the nonwoven material and the exterior covering are combined in a single process. The present invention, in addition to achieving a cost advantage, also produces a covering material that provides better sitting conditions, equivalent to the foam backed covering materials with respect to physical textile values yet being easier to recycle and. In addition, recycled textile products can be worked into the covering material of the present invention as reprocessed fibers without losing any advantage.

Abstract: A multi-layer packaging foil having a hologram membrane therein, includes a bottom structure made of plastic material and a top structure made of aluminum foil with a hologram membrane sandwiched therebetween. The hologram membrane is composed of a layer of resin and a thin layer of aluminum with a serration defining a hologram formed thereon so that when the packaging foil is viewed from the bottom structure side, a 3-D image is generated by the serration. Also provided herein is a method for manufacturing the multi-layer packaging foil, including the steps of applying a resin layer on a plastic bottom structure with a thin layer of aluminum covered thereon, forming a serration defining a hologram on the aluminum and resin layers by means of a serration forming roller and adhesively attaching a top structure which comprises an aluminum foil over the serration.

Abstract: A method for distributing a zeolite, including molecular sieve, powder having a median particle size of less than about 350 microns includes controlling the moisture content of the zeolite particles to greater than about 3 percent and thereafter refining the powder to reduce the size of agglomerated clusters.

Abstract: A chemically resistant composite sheet composed of a PTFE substrate layer, a glass cloth, and an intermediate thermoplastic fluoropolymer layer of a thermoplastic fluorocarbon resin prepared by laminating the layers between a pair of rollers under pressure and under heat sufficient to melt the intermediate thermoplastic fluropolymer.

Abstract: Two embodiments of a method for metallizing a phosphor layer are presented. The key to the method is covering the phosphor with a temporary planarizing layer onto which the metallizing layer (typically aluminum) is then deposited. Once the metal layer is in place, the planarizing layer is removed (by a burning process), the metal then making good contact with the phosphor and the substrate. In the first embodiment, the dry film is located below the phosphor layer while in the second embodiment it is located above it.

Abstract: A process is disclosed for making contoured hydrocolloid-containing adhesive dressings in which, in the final product, a soft pliant adhesive layer having one or more hydrocolloids dispersed therein is sandwiched between a top backing layer of stretchable film or fabric and a bottom release layer of flexible but substantially non-stretchable material. In a combined contouring and cutting step, the layers are compressed and heated to reshape the adhesive material and are simultaneously cut to form the finished dressing. In a preferred embodiment, three steps of laminating, contouring and cutting are performed simultaneously at a single station.

Abstract: A spray device is prepared has a plurality of nozzles each of which has a capillary tube surrounded by a gas discharge pore at the end of the nozzle. A molten resin liquid is blown out to a reinforcing fiber from the capillary tube by heated air stream discharged through the gas discharge pore, so that a binder resin layer is formed on the reinforcing fiber. Following this, a resin-permeable supporting sheet and then a back-up sheet are applied to the binder resin layer side of the reinforcing fiber, and a releasing sheet is applied to the other side of the reinforcing fiber. The thus obtained superposed layers are pressed to adhere the reinforcing fiber, the supporting fiber and the back-up sheet to each other.

Abstract: A process and apparatus for controllably registering two continuously moving layers of material is provided. One of the layers comprises a permanently settable material, and has a plurality of reference marks representing a plurality of separate and distinct components, and the other of the continuously moving layers has a respective plurality of different components thereon. The process and apparatus controls the distance between reference marks to a selected distance, and controllably registers each reference mark to a respective component of the continuously moving second layer.

Abstract: A process and apparatus for controllably registering two continuously moving layers of material is provided. A continuously moving first layer has a plurality of components thereon, and a continuously moving second layer has a plurality of reference marks representing a respective plurality of components thereon. The process and apparatus control the distance between reference marks of the second layer to a selected distance, and controllably registers each reference mark of the second layer to a respective component of the continuously moving first layer.

Abstract: The present invention relates to a procedure for irreversibly transferring a diffraction grating, such as a stamped hologram, onto a substrate, such as a document or a product to be secured, which procedure consists of preparing a transfer film consisting of a supporting film substrate that carries at least one layer formed by a protective film overlay, a metallized or transparent reflective layer that carries the stamped optical image, and a layer of activatable adhesive. The procedure consists of superimposing the transfer film prepared in the above-described manner and of applying pressure with a transfer tool. The stage consisting of the preparation of the transfer film consists of depositing, onto a supporting film substrate whose dimensions are greater than those of the element to be transferred, at least one optical element whose dimensions correspond exactly to those of the element to be transferred onto the substrate.

Abstract: A method and apparatus for extrusion coating both sides of a metal strip. A metal strip, such as aluminum alloy strip, is moved through a pre-conditioner, two extrusion dies, a post-heater and a cooling system. Both sides of the strip are coated with thin coatings of thermoplastic polymers. The coated metal strip is useful for containers, such as cans and can ends, as well as for automobiles, appliances, aerospace, construction and electrical devices.

Abstract: A nonwoven porous fabric is laminated to a thermoplastic film, with the film being capable of rendered microporous upon permanent elongation. The film and fabric laminate is then heated and elongated, causing the fabric and film to become thinner and to cause the film layer to become microporous.

Abstract: An improved roll-form vent for buildings comprises a sequentially thermoformed polymeric vent which provides multiple venting air flow paths between the interior of a building and ambient atmosphere. The vent includes projections extending from a web and a plurality of vent openings that cooperate with screening to bar entry into the building of water, insects and foreign matter. A method of making the vent includes steps of providing a web of material of indeterminate running length, heating the web, sequentially thermoforming the web, cooling the web and rolling the formed vent for storage, shipment and use.

Abstract: A method for forming a plurality of fastener components comprises providing a composite web which includes a web of hook material. The hook material includes a hook base layer which has first and second longitudinally extending side sections and has a plurality of hook elements which are integrally formed with the base layer and extend away from a base plane of the hook base layer. The hook elements are configured to operably engage a selected, cooperating loop material to provide an operative fastening, and the web of hook material has an extending section of carrier web material attached to extend laterally outboard from each of the side sections of the web of hook material. Each section of carrier web material has an extending web of panel material attached to extend laterally outboard from each section of carrier web material.

Abstract: An improved method of manufacturing geosynthetic clay liners is provided. The method of manufacture enables the construction of a structurally sound liner without the use of glue or adhesive and further without the use of needle punching or quilting. The method of manufacture also eliminates the need for any subsequent drying step. Water in combination with compression is used to adhere the granular bentonite layer to the inside surfaces of the cover sheet and the primary carrier sheet and further to provide structural ability to the bentonite layer itself.

Abstract: A device for applying glue to wrapper sheets, especially cold glue, in cigarette packaging machines or the like, includes a device (7) for conveying a succession of wrapper sheets (1) through a glue application station in which devices (10) are provided for picking up the glue from a box (9) and applying it to at least certain predetermined areas (201, 301) of the wrapper sheets (1). The glue pick-up/applicator means (10) are brought (14, 15) into contact with the wrapper sheet (1), that is with the corresponding predetermined areas (201, 301) in a punching or touching movement and can move (14, 15), transversely to the surface of the wrapper sheet (1), between an active position of glue application in which the devices (10') are in contact with the predetermined application area (201, 301) of the wrapper sheet (1) and an inactive position in which the pick-up/applicator devices (10) are withdrawn a predetermined distance from it.

Abstract: A method and apparatus providing a process of laminating tape with a thin integral primer to a release liner. The apparatus of the present invention comprises multiple extrusion dies and adjustable driven rollers having an arrangement that supplies a stream of molten adhesive and a separate stream of primer that is laminated between a film of base material and a release liner, which is laminated between cooled rollers to form a tape.

Abstract: A method for manufacturing a foil laminate with a defined curvature is provided. The method includes providing an encapsulating device having a transporting assembly for carrying a carrier foil through the device, a first supply device for supplying to the carrier foil a first skin laminate such that the glue layer forming part thereof is brought into contact with the first surface of the carrier foil, a second supply device for supplying to the other side of the carrier foil a second skin laminate such that the glue layer forming part thereof is brought into contact with the second surface of the carrier foil, and a pressing device having a pinch for exerting a pressure force on the stack passing through and including the first skin laminate, the carrier foil and the second skin laminate.

Abstract: The invention pertains to a composite panel comprising a foamed thermoplastic core layer which is joined on both sides without adhesive to thermoplastic outer layers reinforced by fiberglass mats. The composite panel is used to make molded parts for motor vehicles.

Abstract: A method for manufacturing a laminated assembly having a first layer with a face secured by an adhesive to a first face of a second layer having a meshed structure and having loops projecting from its second face. The method includes the step of depositing and adhering a thin film onto the first face of the second layer under controlled adhesive quantity and viscosity conditions so that the deposited film divides by itself to clear the mesh zones and to be converted into longitudinal and/or transverse beads.

Abstract: The invention relates to a method of making a composite laminate comprising the steps of providing unidirectionally oriented parallel fibres (UD filaments) (3) with a resin matrix to form a composite UD layer and laminating a plurality of UD layers to form a UD crossply laminate (18). In the method of the invention, the UD filaments are impregnated with a melt of a resin which in the uncured form solidifies below a certain temperature (Tm). Thereupon the UD filaments-containing resin is cooled to a temperature below Tm to produce the composite UD layer. The produced composite UD layer is irreversibly cured before or after lamination. Notably latent curing resins are suitable. The impregnation is preferably conducted by coating a process belt (8) with solid resin (6), laying the UD filaments onto the resin, and heating the resin so as to form the resin melt. The heating of the resin is preferably conducted by means of IR irradiation (11).

Abstract: The present invention entails a method and apparatus for automatically glue-bonding scrim to a non-woven fiber mat. The fiber mat and scrim are both conveyed or advanced towards a pair of compression rollers. Prior to reaching the compression rollers, a series of glue guns direct a spray of glue onto one side of either the fiber mat or the scrim. Thereafter, the fiber mat and scrim are fed through the pair of compression rollers that press the scrim and fiber mat together to form a bonded fiber mat-scrim composite. From the compression rollers, the final formed fiber mat-scrim composite is conveyed to a take-up station where the composite is overlapped or wound into a roll.

Abstract: A cover provided to partly enclose a pair of bonding rollers is supplied with a gas such as carbon dioxide having high solubility in an adhesive to be used and a sheet-like adhesive or an adhesive in a sheet form is bonded to a support film.

Abstract: A cloth-like microporous laminate of a nonwoven fibrous web and thermoplastic film is made by lamination of a microporous-formable film composition and a nonwoven fibrous web followed by incremental stretching to form the cloth-like microporous laminate. The cloth-like microporous laminate has air and moisture vapor permeabilities, but acts as a barrier to the passage of liquids. The cloth-like laminates are especially useful in fabricating garments in order to provide the breathable qualities of air and moisture vapor transmission with liquid-barrier properties. Such garments include baby diapers, baby training pants, catamenial pads and garments, and the like where moisture vapor and air transmission properties, as well as fluid barrier properties, are needed.

Abstract: An elastic laminated sheet of an incrementally stretched nonwoven fibrous web and elastomeric film and method of making are disclosed. The elastic laminates are especially useful in diapers, surgical gowns, sheets, dressings, hygienic products and the like.

Abstract: A magnetic disk to selectively display opposite colored sides is constructed by providing upper, lower and middle tape layers. The middle layer is punched to provide a series of magnet receptacles when the upper and lower layers are added. The lower layer is added to the middle layer and the magnet inserted. The upper layer is applied and the magnet is magnetized before individual disk elements are detached from the tape. The upper layer may be constructed from a plurality of sub layers. The sub layers may be combined in a separate step before the upper layer is applied to the middle. The upper tape may be applied to the middle by pressure sensitive adhesive. The upper tape sub layers may be an outer clear layer and an inner colored layer, which clear layer may be treated for ultra violet filtering and to provide a matte finish.

Abstract: An apparatus and a method for bonding a laminate formed of at least two layers of sheet material superimposed on one another with adhesive therebetween and moved along a path. The apparatus includes a first laminator having an upper plate assembly having a first low-friction laminate-contacting surface for contacting a first layer of the laminate, and an upper heat exchanger thermally coupled to the upper plate assembly. The first laminator also includes a lower plate assembly having a second low-friction laminate-contacting surface for contacting a second layer of the laminate, wherein the first and second laminate-contacting surfaces are disposed in opposed relationship for accommodating passage of the layers of the laminate therebetween, and a lower heat exchanger thermally coupled to the lower plate assembly.

Abstract: The present invention relates to a method of making a laminated product, such as an insulator pad comprised of foam and stiffening layers held together with adhesive. A thin protective barrier foam sheet is placed between the surface of a compression roller and the sheets to be laminated together by passing them between compression rollers. The thin protective barrier foam sheet may or may not form the outer layer of the laminated product and prevents adhesive and foam material from contaminating the surface of the roller.

Abstract: Discrete sheets are shingled to acquire lower speeds of material passage through a process application zone of the system while maintaining overall system throughput rates when compared to conventional web systems.

Abstract: The invention relates to a method of making a laminated substrate for use in an immunodiagnostic device and a machine or apparatus for marking the substrate with reagent. The method of forming the laminated substrate creates a rollable chromatographic medium. The chromatographic medium can be biphasic or multiphasic. The biphasic chromatographic medium comprises a capture medium precast onto a plastic backing and a release medium. The release and capture media are bonded to a liner material such as a plastic film. The multiphasic chromatographic medium comprises a capture medium precast onto a plastic backing, a release medium, and a sample absorbent medium. The capture medium, the release medium and the sample absorbent medium are disposed on a liner material such as a plastic film. The biphasic and multiphasic laminates are prepared for use as immunoassays by a specially adapted machine or apparatus.

Abstract: A disposable absorbent article or pad provides improved wearer comfort because it is shaped to provide an optimal fit to the user's undergarment, it has soft, flexible sides to prevent chafing of the user's thighs, and it has relatively stiff ends to prevent the ends from curling up during use. The difference in flexibility between the pad's ends and sides is achieved by placing a core of absorbent material end to end along the longitudinal axis of the product and centered in the midsection of the product so that the absorbent material is present in the peripheral sections of the product's ends but is absent in the peripheral sections of the product's sides.

Abstract: A glue applicator for applying glue to a paper web used in the manufacture of paper cores is disclosed. A drive roller having a surface of frictional character rotates a glue applicator roller and a doctor roller, these rollers coupled by sprockets and a chain. The doctor roller is adjustable so that a gap between the doctor roller and glue applicator roller may be adjusted, adjusting thickness of a layer of glue applied to the paper web. A motor having an overrunning clutch is coupled to the glue applicator roller and doctor roller, so that during intervals when the paper web is not passing through the glue applicator, the glue applicator roller may be continuously rotated in liquid glue, preventing glue from hardening on the glue applicator roller and doctor roller.

Abstract: The invention relates to a method for the production of flat laminates (5) from polymethacrylate plastic, by thermal adhesion of at least two parts (1) of polymethacrylate plastic heated at their surface, with the characterizing features that the parts (1) of polymethacrylate plastic, which have been preheated to surface temperatures of 130.degree. to 200.degree. C. on the adhesion side (1a), and which maintain their original shape during the preheating phase, are pressed together between a pair of rollers (2, 3), of which at least one roller (2), by means of which the pressure force (4) is exerted, is mounted in movable manner, at a feed velocity being between 5 and 200 mm/s and a pressure force acting on the roller (3) between 10 and 500 N.

Abstract: An improved pull-roller system for a calender machine having at least a pair of main rollers and a pair of pull-rollers. The nip of the pull-rollers is located at an elevation below the nip of the main rollers. In addition, the axis of the top pull-roller is offset with respect to the axis of the bottom pull-roller.