Abstract:
Procédé de fabrication d'un film d'affichage auto-adhésif, dans lequel, en continu on fournit deux feuilles (12,15) chacune étant enroulée sur une bobine (6 ou 7) séparée, et comportant une couche diélectrique (13), l'une (12) de ces feuilles comportant une couche écran (14) sur l'une de ses faces et formant le film d'affichage, et l'autre (15), formant un film de protection du film d'affichage, on charge le film d'affichage, on met en contact la face dépourvue de couche écran (14) de la couche diélectrique (13), du film d'affichage avec le film de protection, et on rembobine l'ensemble (34) sur une bobine unique (8). Dispositif pour la mise en oeuvre de ce procédé.
Abstract:
The invention relates to a coextruded film (1), comprising two outer layers (2, 4) and a middle layer (6) arranged between the outer layers (2, 4). The middle layer (6) is a charge carrier layer having a polymer (8) that is designed specifically to hold ions (10) in a steady manner. The invention further relates to advantageous uses of said film (1) and to the use of a microfiber cloth in order to electrostatically charge the film (1).
Abstract:
An improved method of an apparatus for producing novel preferably thin plastic protective or masking film layer products (2) for thin shiny copper foils (1) and the like, as for PCB applications and the like, with an inner releasable film surface coating (2’’) carrying a permanent electric-charge for adhering to the shiny foil surface (1’), but with the opposite outer surface (2’) of the film being maintained uncharged and electrically neutral.
Abstract:
This invention relates to a process for applying a coating material comprising a release coating composition (204) or a pressure sensitive adhesive composition (206) to a substrate (202), the process comprising: (A) atomizing and electrically charging said coating material; and (B) spraying (102, 104) the atomized and charged coating material from step (A) onto a substrate (202) which overlies a grounded support structure (108). In one embodiment, the coating material sprayed during step (B) is a release coating composition (204), said process further comprising the additional steps of: (C) curing said release coating composition (204); (D) atomizing and electrically charging a pressure sensitive adhesive composition (206); (E) spraying the pressure sensitive adhesive composition (206) from step (D) onto said substrate (202) over the cured release coating composition (204) from step (C); and (F) placing another substrate (208) over the sprayed pressure sensitive adhesive composition (206) from step (E).
Abstract:
The invention is related to a method for making a bonded article, wherein a thin glass substrate is bonded on a support substrate in the absence of any interlayer by an electrostatic adhesion process with the assistance of external pressure, the pressure is applied constantly or stepwise during the adhesion process by use of a tool such as a roll or a wheel or other movable device with curved surface. The bonded article has no defects, e.g. bubbles or inclusions, in the bonded interface, which benefits transportation of the thin glass substrate and its post-processing as well. Such defect-free bonded article is also disclosed. Pressure supported electrostatic adhesion, initiated by electrostatic charges adhesion of a two members, e.g. a substrate member and a support member, is enabled to minimize, prevent and exclude defects, distortion between the adhered surfaces.
Abstract:
A method of forming a flexible glass laminate is provided. The method includes charging a flexible glass substrate with an electrostatic charge and charging a laminate substrate with an electrostatic charge that has a polarity opposite a polarity of the charge on the flexible glass substrate. The flexible glass substrate and the laminate substrate are brought together, with an adhesive therebetween, thereby creating an adhesive bond and an electrostatic bond between the flexible glass substrate and the laminate substrate.
Abstract:
The invention relates to a coextruded film (1), comprising two outer layers (2, 4) and a middle layer (6) arranged between the outer layers (2, 4). The middle layer (6) is a charge carrier layer having a polymer (8) that is designed specifically to hold ions (10) in a steady manner. The invention further relates to advantageous uses of said film (1) and to the use of a microfiber cloth in order to electrostatically charge the film (1).
Abstract:
Disclosed is a method for producing a bonded article (1), comprising providing a carrier substrate (2), having a bonding surface (2.1) and providing an ultra-thin substrate (3) which is sheet-like and flexible. The method further comprises cleaning at least the bonding surface of the ultra-thin substrate (3), cleaning at least the bonding surface of the carrier substrate (2), and establishing an intimate bonding. The method is characterized in that the intimate bonding is established by electrostatic forces resulting from a weak electrostatic field potential from electrostatic charges on at least one of the bonding surfaces, wherein the weak electrostatic field potential at the bonding surfaces does not exceed 1kV. Further disclosed are a bonded article and a use of the bonded article.
Abstract:
Die Erfindung beschreibt ein Verfahren sowie eine Vorrichtung zum Positionieren von zwei flächigen Elementen (2, 17) wie ein Glaselement (3) und eine Folie (18) aus Kunststoff aufeinander, bei dem ein Element (2, 17) an das andere Element (17, 2) möglichst spielfrei angelegt wird. Dazu wird zumindest eines der beiden voneinander distanzierten Elemente (2, 17) elektrostatisch aufgeladen und werden die beiden Elemente (2, 17) ausgehend von der distanzierten Position relativ' zueinander bewegt, bis einander zugewandte Oberflächen der beiden Elemente (2, 17) im Wesentlichen spielfrei aneinander liegen und durch elektrostatische Anziehungskraft relativ zueinander fixiert sind.
Abstract:
An improved method of and apparatus for producing preferably thin plastic protective film layers (2) for thin shiny copper foils (1) and the like, as for PCB applications, with electric charge adhering of the same to the foil (1) and with peel-off releasable properties to provide the same original pristine, shiny copper foil surface without contamination, marring or other physical, chemical or other residue despite handling and other processing procedures.