Abstract: A method of securing an elastic strand to a flat substrate or sheet of material moving the elastic strand and the sheet in a converging manner from a first position in which the elastic strand is spaced from the sheet to a second position in which the elastic strand contacts one surface of the sheet. A filament of adhesive is dispensed onto the strand in a pattern configured with adhesive masses coupled by thinner filament sections. The adhesive masses are contacted with the strand when the strand is in the first position. The strand is bonded to the substrate with at least the adhesive masses.

Abstract: A liquid dispensing module and nozzle or die tip for discharging at least one liquid filament. The nozzle includes a strand guide for guiding a substrate past the nozzle and a frustoconical protrusion disposed on a surface of the nozzle adjacent the notch. A liquid discharge passage extends along an axis through the frustoconical protrusion and forms an acute angle with a machine direction corresponding to movement of the strand past the nozzle. Four air discharge passages are positioned at the base of the frustoconical protrusion. Each of the air discharge passages is angled in a compound manner generally toward the liquid discharge passage and offset from the axis of the liquid discharge passage to create the controlled pattern of liquid material on the strand.

Abstract: The adhesive application station (14) for binding stacked printed products (10) by means of a liquid or liquefiable adhesive (52) comprises an application station (14) with an adhesive discharge system (15). This system consists substantially of an application head (12) for the adhesive (52) with a slip surface (16) for the printed products (10), and an application nozzle (42) extending over the entire width (g) of the slip surface (16) with at least one outlet opening (20) for the adhesive, an adhesive reservoir (50) and means for generating a pressure on adhesive application. The adhesive discharge system (15) also comprises immediately adjacent to the outlet opening(s) (20), a metering device (44, 45) which can be sealed manually and/or electronically controlled by an actuator (130). This metering device (44, 45) forms with the adhesive reservoir (50) and an integral accumulator (54) a pressure compensation system.

Abstract: Strand coating methods having an applicator head pivotally mounted adjacent a substrate, a coating material dispenser mounted on the applicator head, a strand guide mounted on the applicator head, wherein the strand guide and the coating material dispenser are adjustably positionable in unison relative to the substrate by pivoting the applicator head to vary the spacing of the strands relative to the substrate.

Abstract: A method of applying adhesive to major and minor flaps of a container in a siftproof adhesive pattern. A pair of adhesive dispensing guns are moved with respect to the flaps of the container as the container is conveyed past the guns. Electric actuators, such as linear modules or rotatable servo modules, are used to rapidly accelerate the guns in a direction perpendicular to the path of the container along a conveyor. In this manner, rapid packaging takes place and reliable siftproof patterns are achieved using minimal adhesive.

Abstract: A process for crosslinking polyacrylate compositions, wherein, by selective irradiation of the pressure-sensitive adhesive composition with electron beams, the polymer is cured only in certain structures and, as a result, structured pressure-sensitive adhesive compositions can be prepared.

Abstract: An adhesive composition comprising a silicone free polyurea-based polymer, comprising a segmented copolymer, wherein the copolymer comprises repeating units of Formula I: wherein: each B is independently a polyvalent radical selected form a group consisting of arylene, aralkylene, cycloalkylene, polyoxyalkylene, or mixtures thereof; each D is independently selected from the group consisting of hydrogen, an alkyl group, a cycloalkyl group, a phenyl group, a group that completes a ring structure that includes B to form a heterocycle, and mixtures thereof; each Z is independently a polyvalent radical having about 1 to about 20 carbon atoms; each Y is independently a polyoxyalkylene; m is an integer greater than zero; and a is zero or an integer greater than zero; and wherein the composition comprises a tackifier in an amount sufficient to provide the adhesive composition as a pressure sensitive adhesive and in an amount less than about 45 parts by weight tackifier per hundred part by we

Abstract: A method of partially applying a hot-melt pressure sensitive adhesive composition to a backing material, in which the hot-melt pressure sensitive adhesive composition is applied by an applicator to a moving transfer means in such a way that a film formed from the hot-melt adhesive composition comprises voids; the film applied to the transfer means is subsequently applied to a backing material, which is likewise moving.

Abstract: A method for coating includes applying an adhesive to a surface, wherein the surface comprises an arrangement of structures thereon, wherein the structures extend upward from a plane of the surface and have at least one sidewall that makes an angle with respect to the plane of the surface of greater than 0° and less than 90° selected to reduce air bubble formation for a coating solution of a selected rheology.

Abstract: The present invention pertains to an arrangement for the controlled application of adhesive to substrate. In at least one embodiment, the arrangement comprises a) an adhesive reservoir, b) a pump, c) an applicator head having at least one applicator nozzle, d) a volume throughput sensor, and e) a monitoring unit. The reservoir, the pump, and the applicator head are connected together by a conduit system carrying the adhesive. The volume throughput sensor and the monitoring unit are connected together by a pulse transmission line. The monitoring unit, the feed pump, and the applicator head are connected together by control lines. In at least one embodiment, the application of adhesive to substrates is controlled by measuring the volume throughput of the adhesive, transmitting signals indicative of volume throughout to the monitoring unit, and controlling the amount of adhesive applied to the substrate material in-line in response to the signals.

Abstract: A manufacture method for forming a disposable plate electrode with biological active film is used to cooperate with a biological sensor for analyzing composition and measuring concentration of a test sample according to electric effect resulted from a biochemical reaction. The plate electrode comprises at least an electrode portion for transmission of the electric effect as well as a biological active film that reacts with the test sample chemically or biochemically. The biological active film contains a carrier layer (cellulose, for example) for adsorbing and keeping the biological active substance (enzyme, for example), which, the carrier layer, can change the electrode portion from hydrophobic into hydrophilic and protect the biological active substance against impairment during relatively higher temperature drying process.

Abstract: Disclosed is a method for making a substrate coated with an adhesive, comprising applying an electron beam modifiable adhesive layer onto a repeatably reusable transfer surface, irradiating the adhesive layer with an electron beam to chemically modify the adhesive layer, and transferring the irradiated adhesive layer to a substrate. Also disclosed is an adhesive coated web, comprising a substrate having at least one component susceptible to electron beam radiation degradation having no electron beam radiation modification and an adhesive layer having an electron beam modified composition and having no chemical, thermal, or ultraviolet crosslinking agent.

Abstract: Apparatus and methods for monitoring the application of a viscous material onto at least one moving strand or other narrow substrates. A detection unit, such as a machine vision system, an infrared sensor, an ultraviolet detector, or a light curtain with multiple detectors, senses radiation originating from the viscous material after it is applied to the strand or strands and, typically, before each strand is contacted with a substrate. The detection unit determines a detected value representative of a characteristic of the pattern from the sensed radiation, compares the detected value with a reference value representative of a desired standard for the characteristic, and outputs a signal in accordance with the result of the comparison.

Abstract: The invention concerns a method for making a micaceous product capable of being impregnated preferably in the form of a mica ribbon by combining at least a support and a mica sheet. The invention is characterized in that it consists in: coating the support and the sheet with a solvent-fee resin or a mixture of solvent-free resins using several coating rollers brought to a temperature for producing the coat; combining the support with the mica sheet; subjecting them to a pressure and heat treatment.

Abstract: The present invention provides a stack of flexible sheet material (200) comprising a plurality of sheets (201) disposed one on top of another, each sheet having repositionable adhesive (202) along one edge and being free of adhesive along the opposite edge and the sheets are stacked with the repositionable adhesive edge of each sheet disposed along alternate opposite edges to maintain the sheets in the stack, characterised in that said stack comprises at least two sheets that are different from each other. The present invention also provides a method and apparatus for obtaining a stack of sheets as defined above and a dispenser comprising a stack of sheets as defined above.

Abstract: Disclosed is a method of immobilizing the fingers of circuitry. A coating is formed of a liquid adhesive on the surface of a release film in a pattern of strips in positions perpendicular to and across the positions the fingers of the circuitry will have when the pattern of adhesive is bonded to it. The coating is rendered non-tacky and is bonded across and between the fingers and the release film is removed from the coating.

Abstract: In an adhesive applicator apparatus comprising an adhesive applicator roll and a nip roll, a web of corrugated board is led through the nip that is formed between the rolls. In the nip, the web of corrugated board is pressed against the adhesive applicator roll by a given constant force.

Abstract: A spray method of applying liquid adhesive to surfaces of components of an electrochemical cell. The adhesive is applied by spraying through a nozzle, preferably activated by a piezoelectric transducer. The nozzle can be an elongated resilient tube terminating in an outlet opening. The adhesive is preferably sprayed in a pulsed stream of droplets. The liquid adhesive is desirably dispensed in fine droplets at a rate of between about 500 and 5000 droplets per second. The method is effective in applying adhesive to narrow width or difficult to reach surfaces of cell components in a precise, consistent and reproducible manner. In a specific application the adhesive can be applied to the narrow recessed step surrounding the terminal portion of the cathode casing of a zinc/air button cell. In such application the adhesive provides a tight seal between the cathode casing and cathode assembly, thereby preventing leakage of electrolyte from the cell.

Abstract: A laminate includes duplex labels laminated together by patches of adhesive alternating oppositely therebetween. The labels may be removed from each other, with each label having adhesive on the back side thereof.

Abstract: Adhesives having a microreplicated topography are prepared from contacting a microembossed pattern to a layer of adhesive. When an adhesion interface is established between the layer of adhesive and a supporting substrate, the topography of the adhesive surface controls the performance of the adhesion interface. Articles having microreplicated adhesive surfaces are also disclosed that have an advantage of providing microchannels for fluid egress for an effective period of time. Multiple microembossed patterns produce microreplicated adhesive surfaces having both microchannels for fluid egress and pegs for improved adhesive properties.

Abstract: A method of applying adhesive to major and minor flaps of a container in a siftproof adhesive pattern. A pair of adhesive dispensing guns are independently moved with respect to the flaps of the container as the container is conveyed past the guns. Electric actuators, such as linear modules or rotatable servo modules, are used to rapidly accelerate the guns in a direction perpendicular to the path of the container along a conveyor. In this manner, rapid packaging takes place and reliable siftproof patterns are achieved using minimal adhesive.

Abstract: The invention pertains to a method for the manufacture of a packaging material (1; 21) for the production of packaging blanks and packages and comprising the steps of providing at least on surface layer (2, 2′; 22, 22′) in the form of a continuous material web and substantially consisting of cellulosic fibres and applying a distance layer (3; 23) comprising a matrix material and reinforcement fibres thereto so that said surface layer (2, 2′; 22, 22′) is bonded to said distance layer (3; 23). The matrix material in the distance layer (3; 23) is in an expandable state when it is applied to the surface layer (2, 2′; 22, 22′) and is expanded in a separate process step, subsequent to the application step. The invention also concerns expandable packaging materials.

Abstract: The present invention relates to a process for making disposable absorbent articles such as sanitary napkins, panty liners, catamenials, incontinence inserts perspiration pads, and diapers for adults or babies. In particular the present invention relates to a process for the manufacture of disposable absorbent articles comprising two component materials which are adhered to each other which utilizes an improved gravure roll printing process (30) to provide the adhesive, wherein the adhesive is applied to the gravure print roll (31) such that the gravures (32) are only partly filled.

Abstract: A method for coating includes applying an adhesive to a surface, wherein the surface comprises an arrangement of structures thereon, wherein the structures extend upward from a plane of the surface and have at least one sidewall that makes an angle with respect to the plane of the surface of greater than 0° and less than 90° selected to reduce air bubble formation for a coating solution of a selected rheology.

Abstract: The invention is directed to the application of viscous materials, such as the adhesives used in LOC die attach processes, to a lead frame by forming a film of viscous material and then bringing a portion of the lead frame and the film of viscous material into contact with one another. In one exemplary embodiment of the method of the invention, the viscous material is drop dispensed, sprayed, pumped or otherwise placed on a carrier surface, the material is spread to a uniform film thickness and then brought into contact with the die attach portion of the lead frame. One embodiment of the apparatus for applying the viscous material includes (1) a carrier surface, (2) a plurality of orifices in fluid communication with the carrier surface, and (3) a pump for pumping the viscous material through the orifices to the carrier surface. The apparatus may also include a metering blade for spreading the material to a uniform film thickness over the carrier surface.

Abstract: A device for application of a gluing system of at least two components, such as a resin component and a hardener component comprising a unit of at least two hollow members, at least one member for each component, provided with a number of orifices in each member designed to apply the respective component onto a substrate below the hollow members to form strands, the hollow members being positioned above the plane of application, wherein the unit comprises means for adjusting the position of the orifices in at least one of the hollow members in relation to the position of the orifices in the other hollow members. The invention also relates to a method for applying a gluing system of at least two components, such as a resin component and a hardener component, in the form of strands, using the device.

Abstract: Sheet products, such as card stock, envelopes and other paper products (10) are advanced on a vacuum surface conveyor belt (30) beneath a glue applicator drum (35). The glue transfer strips (37 and 38) of the glue applicator drum apply stripes of glue (42 and 43) at the ends of the sheet product, leaving a belt engaging space (41) without glue between the glue stripes. The sheet product is grasped by overlying conveyor belts (46 and 47) at the belt engaging space (41), thereby exposing the wet glue stripes on opposite sides of the belts. Hot air is applied on opposite sides of the conveyor belts (46 and 47), drying the glue. The glue transfer strips (37 and 38) of the glue applicator drum can be adjusted in size, shape and position so as to apply glue to one end, the other end, or both ends of the sheet product, and if glue is applied to only one end, one of the dryers (50 or 51) can be deactivated, saving energy.

Abstract: Printable sheets such as business forms and adhesive play mats having removable labels integrated therein are produced by applying pressure-sensitive adhesive directly to the base sheet of the printable sheet without a paper backing and encapsulating the adhesive with a solid silicone layer. The base sheet is die cut or perforated in regions where the adhesive is applied to define removable labels.

Abstract: A water-resistant, viscosity stable, alkaline curing, starch-based corrugating adhesive composition comprising starch, an alkali material, a ketone-formaldehyde crosslinking additive containing selected sulfite salts and having reduced free-formaldehyde content, and water.

Abstract: The present invention provides a distinctive method and apparatus (20) for forming an article which includes one or more selectively configured strands of material. In particular aspects, the invention can provide a method and apparatus for wrapping a strand of material with selected filaments, and desirably, the filaments can be adhesive filaments. The technique of the invention can include a moving of a strand of material (22) at a selected speed along an appointed machine-direction (34). At least a first, substantially continuous filament (24) can be directed onto the strand of material (22) along a corresponding, oscillating filament path (26) to form a first plurality of filament threads (28) which extend from opposed lateral side regions (30) of the strand of material (22).

Abstract: Hot melt thermoplastic adhesive is predeposited on a carrier strip having front and back release surfaces. The carrier strip is rolled into a coil compressing the thermoplastic hot melt into disks which may later be removed for use. The disks are spaced so that the carrier strip may be deformed to expose a single disk to a planar surface permitting simplified dispensing of the disks.

Abstract: Hot melt thermoplastic adhesive is predeposited on a carrier strip having front and back release surfaces. The carrier strip is rolled into a coil compressing the thermoplastic hot melt into disks which may later be removed for use. The disks are spaced so that the carrier strip may be deformed to expose a single disk to a planar surface permitting simplified dispensing of the disks.

Abstract: The invention provides pressure-sensitive adhesive (PSA) coated articles, including tapes and transfer coatings, having microstructured surfaces and methods of making pressure-sensitive adhesive articles bearing such microstructured surfaces. The performance properties of the pressure-sensitive adhesive articles can be tailored by independently varying the microstructure and the rheological properties of the pressure-sensitive adhesive.

Abstract: Process for the at least partial direct coating of an extensible backing material with a pressure-sensitive adhesive composition, the backing material being guided by a transporting apparatus against a coating apparatus in such a way that the coating apparatus applies the pressure-sensitive adhesive composition to the backing material, characterized in that the coating apparatus is abhesively treated.

Abstract: Process for the at least partial, direct coating of an extensible backing material with a pressure-sensitive adhesive composition, the backing material being guided by a transporting apparatus against a coating apparatus in such a way that the latter applies the pressure-sensitive adhesive composition to the backing material, characterized in that there are adhesion devices or holding devices present on the transporting apparatus so that the properties of the backing are not altered in the course of coating.

Abstract: The application of (for example, elongated strip-shaped) spots of adhesive paste to successive objects (such as paper or cardboard blanks which are to be converted into soft or hinged-lid packs for arrays of cigarettes) which are advanced stepwise below the nozzle or nozzles of one or more pasters at an adhesive-applying station is regulated by a control unit which receives signals denoting the speed of the conveyor for the objects and the position of the object at the adhesive-applying station. The control unit regulates the operation of the valve for each nozzle of the paster by taking into consideration the inertia of electrical and mechanical constituents of the paster. This ensures the application of spots having an optimum shape and an optimum position relative to the respective objects and containing predetermined quantities of adhesive.

Abstract: An improved adhesive application assembly (70) for a labeling machine (2) includes an adhesive sprayer (76) which directs heated adhesive (88) towards labels (60) passing the adhesive application station (70). A moving heated adhesive shield (80) includes one or more windows (84), through which the adhesive is sprayed, surrounded by a heated overspray-intercepting surface (90). The intercepted adhesive is collected for reuse.

Abstract: A cleaning sheet with a tacky surface coating is used to clean feed rollers in copying machines or similar equipment and similarly-coated cloths are used for the removal of particles from other surfaces to be cleaned. The cleaning articles are made by printing the tacky material on sheet material such as paper or cloth. Relatively thick layers of tacky material are applied quickly and economically by the use of a multi-stage printing press which builds up a thick layer from a plurality of thin layers.

Abstract: The invention is directed to the application of viscous materials, such as the adhesives used in LOC die attach processes, to a lead frame by forming a film of viscous material and then bringing a portion of the lead frame and the film of viscous material into contact with one another. In one exemplary embodiment of the method of the invention, the viscous material is drop dispensed, sprayed, pumped or otherwise placed on a carrier surface, the material is spread to a uniform film thickness and then brought into contact with the die attach portion of the lead frame. One embodiment of the apparatus for applying the viscous material includes (1) a carrier surface, (2) a plurality of orifices in fluid communication with the carrier surface, and (3) a pump for pumping the viscous material through the orifices to the carrier surface. The apparatus may also include a metering blade for spreading the material to a uniform film thickness over the carrier surface.

Abstract: A method for producing visco-elastic fluidic material flows by drawing a visco-elastic fluidic material with corresponding separate second fluid flows associated therewith to form a visco-elastic fiber vacillating in a repeating, generally omega-shaped pattern having a bowed portion with first and second side portions that first converge toward each other and then diverge outwardly in generally opposing directions. In one operation, the visco-elastic fiber vacillating in the repeating, generally omega-shaped pattern is an adhesive material deposited onto woven and non-woven fabric substrates and stretched elongated elastic strands in the manufacture of a variety of bodily fluid absorbing hygienic articles.

Abstract: Adhesives having a microreplicated topography are prepared from contacting a microembossed pattern to a layer of adhesive. When an adhesion interface is established between the layer of adhesive and a supporting substrate, the topography of the adhesive surface controls the performance of the adhesion interface. Articles having microreplicated adhesive surfaces are also disclosed that have an advantage of providing microchannels for fluid egress for an effective period of time. Multiple microembossed patterns produce microreplicated adhesive surfaces having both microchannels for fluid egress and pegs for improved adhesive properties.

Abstract: A process of laminating textiles for producing air-permeable or moisture-permeable laminated textile materials involves generating a discontinuous layer of adhesive with a precise pattern of voids by means of temporarily introducing sets of parallel yarns or, alternatively, mesh-like webs in contact with an initially uniform layer of adhesive temporarily carried on a release-coated carrier. After the adhesive layer and the mesh-like web have been pushed into contact with a first fabric layer, the release-coated carrier is stripped away, along with the mesh-like web, from the first fabric layer. The adhesive layer remaining on the first fabric layer will exhibit a discontinuous pattern that is complementary to the mesh-like web pattern. Subsequently, a second fabric, or film, is bonded to the exposed adhesive surface on the first fabric to create a laminated material exhibiting air permeability or moisture permeability.

Abstract: A method of manufacture for an adhesive-based system to removably stick relatively flat articles on large area surfaces. A cured pressure-sensitive adhesive is coated on both sides of a central flat, flexible support scrim in a zoned thickness pattern which includes sufficient, continuous thickness such that the system is well suited to the removable installation of many types of articles having rough surface textures including, but not limited to, floor coverings such as woven and double-backed carpets having backs of a relatively rough texture and unitary backed carpet having a rough latex or polymeric coating and no applied secondary scrim. The adhesive is cured in situ but remains pressure sensitive.

Abstract: The present invention provides a number of interrelated methods for the production of random and ordered arrays of particles and recesses as well as films containing such arrays and recesses. The present invention also relates to the random and ordered arrays of particles and films prepared therefrom. The ordered arrays are obtained by the use of ferrofluid compositions which may be curable, solidifiable on non-curing/non-solidifiable. The arrays and films may contain electrically-conductive particles useful in electronic applications for effecting contact between leads or pads.