Abstract: Laminates separated after long-term bonding and methods for separating laminates after long-term bonding is provided. The laminates comprise (a) a first adhesive layer, (b) a separation layer, and (c) a second adhesive layer, wherein the separation layer comprises a laser-sensitive pigment which at the same time is coloring, and so preferably a black coloration is produced, and consists of a cured coating material, preferably an electron beam-cured or UV-cured coating material, which is at least partly removable by laser irradiation. The first adhesive layer and/or the second adhesive layer may be laser beam-translucent or may comprise a reactive or latent-reactive adhesive.

Abstract: Laminates designed and equipped to be separated after long-term bonding are provided. The laminates comprise a first pressure sensitive adhesive layer, a separation layer, and a second pressure sensitive adhesive layer. The separation layer comprises a laser-sensitive pigment which at the same time is coloring, and so preferably a black coloration is produced, and consists of a cured coating material, preferably an electron beam-cured or UV-cured coating material, which is at least partly removable by laser irradiation, wherein the first pressure sensitive adhesive layer and/or the second pressure sensitive adhesive layer are laser beam-translucent.

Abstract: Provided are methods for adhesively bonding profiles to substrate surface. An example method includes plasma-treating each of a profile surface and a first adhesive side of a layer of pressure sensitive adhesive. The pressure sensitive adhesive includes a) 40 to 70 wt %, based on the total weight of the pressure sensitive adhesive, of at least one poly(meth)acrylate; b) 15 to 50 wt %, based on the total weight of the pressure sensitive adhesive, of at least one synthetic rubber; and c) at least one tackifier compatible with the poly(meth)acrylate(s). The method further includes bonding the profile surface and the first adhesive side to one another, plasma-treating a second adhesive side of the layer of the pressure sensitive adhesive, and bonding the plasma-treated second adhesive side to the substrate surface.

Abstract: Method of adhesively bonding two surfaces by means of a reactive adhesive film system comprising at least two adhesive films (F1 and F2), each comprising at least one reactive component (R1 and R2), adhesive bonding being effected by a reaction which requires the presence of both reactive components (R1 and R2), wherein, prior to adhesive bonding, a separating layer (T) which is impermeable to the reactive components is provided between the adhesive films which are to be brought into contact with one another for the reaction, and the separating layer (T) is removed at least in part by means of a laser in order to effect bonding, so that the adhesive films (F1 and F2) come into direct contact with one another and the reaction begins in the presence of both reactive components (R1 and R2), and reactive adhesive film system for use in this method.

Abstract: The invention relates to a method for reducing an end face stickiness a roll (21) of adhesive tape, by supplying a precursor (4) comprising organic polyfunctional silanes to a plasma stream, directing the plasma stream enriched with the precursor (4) at the roll end face (20), and coating the roll end face (20) with an SiOx coating.

Abstract: The invention relates to a method for attaching security features (8) to an adhesive tape (1), by introducing the security features (8) into a transfer layer (7) and applying the transfer layer (7) to a carrier film (6) to form a transfer tape (9) and pressing an outer side of the transfer layer (7) onto an end face (5) of a roll (4) of the adhesive tape (1) and adhering the transfer layer (7) on the roll end face (5) and peeling the carrier film (6) from the transfer layer (7), with the transfer layer (7) parting from the carrier film (6) and, with it, the security features (8) remaining on a side edge (11) of the adhesive tape (1).

Abstract: The invention relates to a method for plasma treatment of at least one surface, wherein a plasma stream (7a) is guided from a plasma nozzle (1) and at least one surface is disposed outside a stream-directionally extended opening cross section of an opening (21) in the plasma nozzle (1), and the plasma stream (7a) is diverted onto the at least one surface.

Abstract: Method of adhesively bonding two surfaces by means of a reactive adhesive film system comprising at least two adhesive films (F1 and F2), each comprising at least one reactive component (R1 and R2), adhesive bonding being effected by a reaction which requires the presence of both reactive components (R1 and R2), wherein, prior to adhesive bonding, a separating layer (T) which is impermeable to the reactive components is provided between the adhesive films which are to be brought into contact with one another for the reaction, and the separating layer (T) is removed at least in part by means of a laser in order to effect bonding, so that the adhesive films (F1 and F2) come into direct contact with one another and the reaction begins in the presence of both reactive components (R1 and R2), and reactive adhesive film system for use in this method.

Abstract: Reactive adhesive film system, comprising a first reactive adhesive film (A) and a second reactive adhesive film (B); use of the reactive adhesive film system described herein for the bonding of materials with nonpolar surfaces; composites comprising the reactive adhesive film system; and methods for the production of the reactive adhesive film system and method for increasing the adhesive properties of the reactive adhesive film system on nonpolar substrates.

Abstract: A double-sided adhesive tape having a first outer impact-adhesive side and a second outer side that can be heat activated, comprising an at least two-layer product structure comprising the layers A and B. Layer A is an impact-adhesive layer chemically cross-linked by means of thermal initiation or an impact-adhesive carrier layer chemically cross-linked by means of thermal initiation. Layer B is a layer on the basis of a thermoplastic plastic. Layer A and layer B are in direct contact with each other, and the surface of layer B that is in direct contact with layer A has been corona- or plasma-pretreated. The double-sided adhesive tape is characterized in that the corona or plasma pretreatment is performed in an atmosphere comprising nitrogen, carbon dioxide, or a noble gas or a mixture of at least two of said gases.

Abstract: Method for bonding a substrate surface of a substrate to an adhesive surface of an adhesive by generating a low-temperature plasma in a low-temperature plasma generator, activating the substrate surface and/or the adhesive surface with the low-temperature plasma, and thereafter layering the substrate surface and the adhesive surface atop one another to form a bonded assembly.

Abstract: The invention relates to a method for reducing end face stickiness of a roll (1) of adhesive tape, by supplying a precursor (18) to a plasma stream (20), using the plasma stream (20) enriched with the precursor (18) to coat a carrier film (2) with a passivation coat (3) in a plasma process, placing a carrier film section (5) by its passivation-coated side onto an end face (4) of the roll (1) of adhesive tape, removing the carrier film section (5) and leaving at least part of the passivation coat (6) on the end face (4) and reducing its end face stickiness.

Abstract: A method for increasing the adhesion between the first surface of a first web-shaped material and a first surface of a second web-shaped material, the first web-shaped material and the second web-shaped material being fed continuously and with the same web direction to a laminating gap, in which the first web-shaped material and the second web-shaped material are laminated together by means of the first surfaces thereof, the two first surfaces being treated with a single plasma simultaneously and preferably over the entire area, the laminating gap being formed by a pressing element and a counter-pressure device, which builds up a counter pressure, and preferably at least one of the lateral surfaces of the pressing element and of the counter-pressure device or both being equipped with a dielectric, characterized in that none of the two first surfaces/web-shaped materials are guided through the discharge zone of the plasma-generating device.

Abstract: A method for increasing the adhesion between the first surface of a first web-type material and a first surface of a second web-type material, the first web-type material and the second web-type material being supplied to a lamination nip continuously and with the same direction of the web. In said nip, the first surface of the first web-type material and of the second web-type material are laminated together and both first surfaces are treated with a plasma over the whole surface. The lamination nip is formed by a pressure roller and a counter-pressure roller and at least one of the surfaces of the rollers or both are equipped with a dielectric. The plasma or the corona is produced by a nozzle. The first web-type material comprises an adhesive compound layer arranged in the first web-type material such as to form the first surface of the first web-type material.

Abstract: Adhesive tape having at least two layers A and B laminated directly on one another, with at least one or both layers A or B being an adhesive, and the interfaces of the layers A and B laminated on one another being subjected to a physical method, the physical method being selected from the group consisting of corona discharge, dielectric barrier discharge, flame pretreatment and plasma treatment, before the layers are laminated to one another, with the two methods differing from one another.

Abstract: A double-sided adhesive tape useful for adhesively bonding articles composed of thermoplastic polymer, of EPDM, or of another rubberlike material is provided, having a first outer, pressure-sensitive adhesive side and a second outer, thermally-activatable side, and that comprises an at least dual-layered product construction consisting of layers A and B, layer A being a pressure-sensitive adhesive layer that is chemically cross-linked by thermal initiation, or being a pressure-sensitively adhesive carrier layer chemically cross-linked by thermal initiation, layer B being a thermoplastic synthetic material-based layer, layers A and B being in direct contact with one another, and the surface of layer A, which is in direct contact with layer B, having been corona or plasma pre-treated. The corona or plasma pre-treatment takes place in an atmosphere of nitrogen, carbon dioxide or a noble gas, or a mixture of at least two of these gases.

Abstract: The invention relates to a double-sided adhesive tape having a first outer impact-adhesive side and a second outer side that can be heat activated, comprising an at least two-layer product structure comprising the layers A and B. Layer A is an impact-adhesive layer chemically cross-linked by means of thermal initiation or an impact-adhesive carrier layer chemically cross-linked by means of thermal initiation. Layer B is a layer on the basis of a thermoplastic plastic. Layer A and layer B are in direct contact with each other, and the surface of layer B that is in direct contact with layer A has been corona- or plasma-pretreated. The double-sided adhesive tape is characterized in that the corona or plasma pretreatment is performed in an atmosphere comprising nitrogen, carbon dioxide, or a noble gas or a mixture of at least two of said gases.

Abstract: A process for preparing titanium carbide using a pigment formulation having at least one titanium compound and a carbon compound and/or elemental carbon, the pigment formulation reacting under laser irradiation to form TiC.

Abstract: Adhesive tape having at least two layers A and B laminated directly on one another, with at least one or both layers A or B being an adhesive, and the interfaces of the layers A and B laminated on one another being subjected to a physical method, the physical method being selected from the group consisting of corona discharge, dielectric barrier discharge, flame pretreatment and plasma treatment, before the layers are laminated to one another, with the two methods differing from one another.

Abstract: Method for increasing the adhesive power of a pressure-sensitive adhesive layer having an upper and a lower surface, wherein at least one surface of the pressure-sensitive adhesive layer is subjected to a physical process, said physical process being selected from among the group comprising corona discharge, dielectric barrier discharge, preliminary flame treatment, or plasma treatment.