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freepatentsonline.com: Adhesive bonding and miscellaneous chemical manufacture


Forming and bonding of flex circuits to structures
An apparatus and method for forming and bonding of flexible circuits to metal structures includes a clamping frame having a removable frame portion. At least one flexible roller fixture provides opposed flexible rollers. A clearance aperture in the roller fixture is sized to slidably receive the clamping frame. As the clamping frame is inserted through the clearance aperture of the roller fixture the opposed flexible rollers apply a continuous pressure to deflect the flexible circuit. A curing clamp is then connected to the clamping frame having at least one engagement face defining a flexible circuit finished shape. The flexible circuit is then heat cured to adhesively bond to the metal structure.

Device for gluing together two webs of packaging material
Described is an apparatus for glueing two webs ( 3, 4 ) of packaging material for the production of liquid-tight packs, wherein each web ( 3, 4 ) is covered at least at one side with a liquid-tight adhesive layer ( 58, 65 ) which can be activated by heat, comprising clamping means ( 5, 21, 27 ) for clamping the material webs ( 3, 4 ) fast, a cutting unit ( 11 ) for applying an inclined cut ( 16 ) extending substantially transversely with respect to the material web ( 3, 4 ), and a welding unit ( 30 ) for applying heat and pressure for glueing the material webs ( 3, 4 ) along the adhesive strip ( 29 ). In order when changing an empty roll to a new full roll at the factory to provide the material web with a factory adhesive location of adequate quality which ensures a higher and more reliable level of liquid-tight sealing integrity, it is provided in accordance with the invention that the welding unit ( 30 ) has a slider ( 31 ) which is displaceable along a transverse rail ( 28 ) substantially transversely with respect to the direction of travel ( 9 ) of the material web ( 3, 4 ) and on which are arranged a heating means ( 33 ) and therebehind in the direction of displacement ( 20 ) a pressure roller ( 38 ).

Automatic blocking and lens blank measuring apparatus and method
An apparatus and method for automatically blocking and providing measurement of a lens blank during the blocking process includes an alignment station and a blocking station. The alignment station aligns a lens blank to a block for bonding that is also known as the blocking process. The blocking station includes a lens blank measurement system having sensors that automatically identify and determine measurement and alignment information about the lens, such as sag and tilt of the lens blank, during the blocking process.

Adherent, removable barrier film for tire carcass
A bond of a rubbery component to a virgin surface of a tire's cured innerliner which virgin surface has never been contaminated by the remnants of a release agent left after buffing with a wire brush and solvent-cleaning the cured innerliner, is unexpectedly stronger than a bond of the component to the contaminated but “cleaned surface”, cleaned as indicated. As an alternative, buffing with a wire brush results in a textured surface that impairs adhesion of a balance pad. Therefore, a pneumatic tire is provided with a virgin surface protected against contamination by a release agent at the curing temperature of the tire; protection is provided by a self-supporting barrier film of sulfur non-vulcanizable, expandable, thermoformable synthetic resinous material; and, a method is provided for maintaining a virgin cured surface within all or part of either the exterior or interior of a pneumatic tire's rubber carcass which is conventionally cured. The barrier film which is substantially inextensible at ambient temperature, is removable without tearing into pieces from the protected surface of the cured tire. When the interior surface is provided by an innerliner, any component to be included within the interior of the carcass may be adhesively secured to the virgin surface of the innerliner more securely than has been heretofore possible.

Process for sealing of a joint
A process for installation of surface elements ( 1 ), the surface elements ( 1 ) comprising a core, a decorative upper surface ( 3 ) and edges ( 2 ) provided with joining means for mechanically locking the surface elements ( 1 ) together. Predetermined portions of the edges ( 2 ) are provided with a glue which is present on the edges ( 2 ) of the surface elements ( 1 ) in a passive dry form and which may be activated by applying a liquid. The surface elements ( 1 ) are joined to each other by use of the joining means wherein a unit of a plurality of surface elements ( 1 ) is formed.

Method of binding a plurality of pages
A method of binding a plurality of pages together is provided. The method comprises the steps of: conveying a plurality of pages along a paper path, each page being conveyed past a first adhesive applicator and a second adhesive applicator; applying a first part of a two-part binding onto a first portion of a first side of each page using the first adhesive applicator; applying a second part of the two-part binding adhesive onto a corresponding second portion of a second side of each page using the second adhesive applicator; and aligning and positioning each page such that a first portion of one page contacts a corresponding second portion of another page, thereby binding the pages together.

Method for fabricating reinforced composite materials
A method for fabricating a reinforced matrix composite comprising the step of providing a composite preform having a fibrous structure and applying matrix material onto the preform in locations along the preform. A barrier material is applied to at least a portion of the coated preform to direct the flow of matrix material into the preform. The composite preform is heated to a temperature sufficient to render the matrix material viscous and insufficient to cure the matrix material. The pressure to the interior of the composite preform is reduced, while the pressure to the barrier material is increased. The temperature is maintained to flow the matrix material into the composite preform and to force gases from the fibrous structure. The composite preform is then cured and cooled to form a reinforced matrix composite having a low void content and a substantially uniform matrix distribution.

Methods of blocking stains on a substrate to be painted, and composites suitable for use in such methods
Methods of blocking stains on a substrate to be painted are disclosed, as are stain-blocking composites that are useful according to the disclosed methods. In a broad aspect, the methods include the steps of contacting a stained portion of the substrate with a dry film layer; applying pressure to the dry film layer to cause the dry film layer to adhere to the stained portion of the substrate and to at least a portion of the substrate adjacent the stained portion of the substrate; and subsequently coating the dry film layer and the adjacent substrate with one or more additional liquid coating layers. Stain blocking composites useful according to the methods described include a release layer, to which the pressure is applied; a dry film layer, that can be clear or pigmented, that serves to block the stain; and an optional adhesive layer, intended to assist in adhering the dry film layer to the stained portion of the substrate and to at least that portion of the substrate adjacent the stained portion of the substrate.

Fabrication of narrow-band thin-film optical filters
A multi-layer thin-film narrow-band filter is fabricated by a process wherein each half of a symmetric stack is deposited under exact conditions, either successively or contemporaneously. The two halves of the filter structure are then combined and bonded together using a wet bonding process that remains reversible for a period of time sufficient for testing the filter and, if necessary, for separating the two halves to regain access to the spacer layer. Accordingly, the spacer layer may be adjusted to shift the peak wavelength, if necessary, to the precise design specifications for a particular application. After correction, the components of the symmetric filter are bonded again using the same wet process.

Thin film removing device and thin film removing method
A thin film removing device and a thin film removing method are capable of removing straight parts of a thin film formed on a square substrate from corners of the substrate, and of suppressing the formation of mists. An approach stage 20 having flat stage plates 23 capable of being disposed substantially flush with the surface of a substrate M mounted on a support table 22 is positioned close to the substrate M mounted on the support table 22 . Removing nozzles 30 jet a solvent toward edge parts of the substrate M and suck a solution produced by dissolving part of the resist in the solvent while the removing nozzles 30 are moved along side edges of the substrate M and the approach stage 20 disposed close to the substrate M. Thus, the removing nozzles 30 jet the solvent uniformly over the edge parts and corners of the substrate M and suck the solution without changing modes of jetting the solvent and sucking the solution. Consequently, straight parts of a thin film formed on the square substrate M can be removed from the corners of the substrate M, and the formation of mists can be suppressed.