Abstract: Diecuts and methods for closing of holes in metal sheets or in plastics parts are disclosed. The diecuts have a carrier composed of an assembly that comprises a metallic first layer having a thickness of 10 to 40 ?m, a second layer of a woven or laid glass fabric having a basis weight of 30 to 200 g/m2, an optional first adhesive third layer, an unexpanded expandable graphite fourth layer having a thickness of at least 0.2 to 3.0 mm, and a second adhesive fifth layer. The expandable graphite being present in the fourth layer to an extent of at least 80 wt % and fifth layer being formed by an adhesive having a basis weight of 300 to 1800 g/m2 and/or a thickness of 400 to 1800 ?m.

Abstract: The present invention relates to a diecut especially for the permanent closing of holes especially in metal sheets or in plastics parts, having a carrier composed of an assembly, more particularly laminate in the specified layer sequence, of optionally at least one first layer, which is formed by a metallic layer having a thickness of 10 to 40 ?m, optionally at least one second layer, which is formed by a woven glass fabric or laid glass fabric having a basis weight of 30 to 200 g/m2, optionally at least one third layer, which is formed by a first pressure-sensitive adhesive having a basis weight of 70 to 200 g/m2, at least one fourth layer, which is formed by a flame-retardant foam having a thickness of at least 0.5 to 2.5 mm, and at least one fifth layer, which is formed by a second, acrylate-based pressure-sensitive adhesive having a basis weight of 300 to 1800 g/m2, preferably 360 to 1500 g/m2 and/or a thickness of 400 to 1800 ?m, preferably 800 to 1500 ?m.

Abstract: Diecuts and methods for closing of holes in metal sheets or in plastics parts are disclosed. The diecuts have a carrier composed of an assembly that comprises a metallic first layer having a thickness of 10 to 40 ?m, a second layer of a woven or laid glass fabric having a basis weight of 30 to 200 g/m2, an optional first adhesive third layer, an unexpanded expandable graphite fourth layer having a thickness of at least 0.2 to 3.0 mm, and a second adhesive fifth layer. The expandable graphite being present in the fourth layer to an extent of at least 80 wt % and fifth layer being formed by an adhesive having a basis weight of 300 to 1800 g/m2 and/or a thickness of 400 to 1800 ?m.

Abstract: The present invention relates to a diecut especially for the permanent closing of holes especially in metal sheets or in plastics parts, having a carrier composed of an assembly, more particularly laminate in the specified layer sequence, of optionally at least one first layer, which is formed by a metallic layer having a thickness of 10 to 40 ?m, optionally at least one second layer, which is formed by a woven glass fabric or laid glass fabric having a basis weight of 30 to 200 g/m2, optionally at least one third layer, which is formed by a first pressure-sensitive adhesive having a basis weight of 70 to 200 g/m2, at least one fourth layer, which is formed by a flame-retardant foam having a thickness of at least 0.5 to 2.5 mm, and at least one fifth layer, which is formed by a second, acrylate-based pressure-sensitive adhesive having a basis weight of 300 to 1800 g/m2, preferably 360 to 1500 g/m2 and/or a thickness of 400 to 1800 ?m, preferably 800 to 1500 ?m.

Abstract: Method for bonding by wrapping a medium which is capable of expanding transversely to a winding with an adhesive tape, in which: an adhesive tape is unrolled from an adhesive tape roll, the unrolled adhesive tape is provided on one side of a carrier film (1) with an adhesive cement layer (2) and on an opposite side with a separating agent layer (3), the separating agent layer (3) is subjected to a plasma treatment, the plasma-treated adhesive tape is wound around the medium which is capable of expanding transversely to a winding, so that at least a portion of the adhesive tape is bonded to a lower winding ply by the adhesive cement layer (2).

Abstract: Method for bonding by wrapping a medium which expands transversely to a winding with an adhesive tape, in which: an adhesive tape is unrolled from an adhesive tape roll, the unrolled adhesive tape is provided on one side of a carrier film (1) with an adhesive cement layer (2) and on an opposite side partially with a separating agent layer (3), wherein the area covered by the separating agent layer (3) takes up not more than 50% of the total area of the carrier reverse side, wherein at least the surface of the side of the carrier film (1) which is furnished with a separating agent layer (3) is etched, the adhesive tape is wound around the medium which expands transversely to a winding, so that at least a portion of the adhesive tape is bonded to a lower winding ply by the adhesive cement layer (2).

Abstract: Method for bonding by wrapping a medium which expands transversely to a winding with an adhesive tape, in which: an adhesive tape is unrolled from an adhesive tape roll, the unrolled adhesive tape is provided on one side of a carrier film (1) with an adhesive cement layer (2) and on an opposite side partially with a separating agent layer (3), wherein the area covered by the separating agent layer (3) takes up not more than 50% of the total area of the carrier reverse side, wherein at least the surface of the side of the carrier film (1) which is furnished with a separating agent layer (3) is etched, the adhesive tape is wound around the medium which expands transversely to a winding, so that at least a portion of the adhesive tape is bonded to a lower winding ply by the adhesive cement layer (2).

Abstract: Method for bonding by wrapping a medium which is capable of expanding transversely to a winding with an adhesive tape, in which: an adhesive tape is unrolled from an adhesive tape roll, the unrolled adhesive tape is provided on one side of a carrier film (1) with an adhesive cement layer (2) and on an opposite side with a separating agent layer (3), the separating agent layer (3) is subjected to a plasma treatment, the plasma-treated adhesive tape is wound around the medium which is capable of expanding transversely to a winding, so that at least a portion of the adhesive tape is bonded to a lower winding ply by the adhesive cement layer (2).

Abstract: Method for producing an adhesive tape including the steps of providing an adhesive layer to at least one side of a liner or a carrier film and treating at least one filament and/or the adhesive layer with a plasma, and introducing the at least one filament into the adhesive layer.

Abstract: An adhesive tape for the flying roll change of flat web material wound on rolls has a carrier having a leading side and a trailing side. An optically detectable means and an exposable self-adhesive compound are arranged on the leading side. A cleavable adhesive system is located on the trailing side. An inductively detectable means is arranged in the adhesive tape in a visually inconspicuous manner.

Abstract: An adhesive bonding system joins flat webs when changing rolls of such webs. The adhesive bonding system comprises two adhesive tape boundary edges, and further comprises a top carrier layer and a bottom carrier layer, a flat connecting element that connects the two carrier layers to one another and is suitable for opening the connection under the conditions of a static or flying roll change. At least one of the boundary edges of the connecting element does not extend in a straight line, and a straight-line emphasis line is defined in relation to this boundary edge, the emphasis line of this boundary edge extends along a preferential direction, and this boundary edge has a multiplicity of regions lying on one side of its emphasis line and also a multiplicity of regions lying on the other side of its emphasis line.

Abstract: A splicing tape and a method of using such tape to equip a wound roll for flying splice. The tape includes a first and second carrier and two strips of laminating composition disposed between them, each strip joining the first carrier to the second carrier. The carriers have a first and a second layer of pressure-sensitive, laminating composition and a first and a second layer of pressure-sensitive adhesive. The strips of laminating composition are disposed such that they are not in direct contact with one another. They form a predetermined breakage point. The splicing tape is adhered to the roll such that part of the first layer of pressure-sensitive adhesive forms a first bonding area, the end region of the uppermost ply of the wound roll, and the second layer of pressure-sensitive adhesive forms a second bonding area to the roll, which is located partly below the first bonding area.

Abstract: A splicing adhesive tape having a first carrier and a first splittable connector element having a left and a right boundary edge, wherein at least one of said two edges is not straight and comprises protrusions that are round at the locations thereof protruding out the farthest, and a second splittable connector element having a left and a right boundary edge, wherein at least one of said two edges is straight, wherein the first and the second splittable connector element are disposed adjacent to each other on the carrier.

Abstract: In order to provide an adhesive tape for producing a joint during a static reel change between two flat web materials wound up onto reels, having a carrier and a self-adhesive compound, with which the exposure of the self-adhesive compound during the further processing of the webs bonded to each other is avoided, it is proposed that, in the self-adhesive compound, a gap be formed in the longitudinal direction of the adhesive tape, in order to form two self-adhesive compounds having a spacing (V), as viewed in the width of the adhesive tape. Furthermore, a corresponding method is proposed.

Abstract: A splicing adhesive tape having a first carrier and a first splittable connector element having a left and a right boundary edge, wherein at least one of said two edges is not straight and comprises protrusions that are round at the locations thereof protruding out the farthest, and a second splittable connector element having a left and a right boundary edge, wherein at least one of said two edges is straight, wherein the first and the second splittable connector element are disposed adjacent to each other on the carrier.

Abstract: An adhesive tape for flying splice, having a left and right boundary edge, at least one main carrier and a first layer of self-adhesive on the obverse of the main carrier, the reverse of the main carrier bearing a parting system suitable for effecting an adhesive bond to a substrate that can be parted again in such a way that sticky residues are left neither on the reverse of the main carrier nor on the substrate in the region of the parted bond, the parting system being constructed in the form of a multiply interrupted stripe having a plurality of segments that extends in the longitudinal direction of the adhesive tape, the individual segments having less of an extent in the longitudinal direction of the adhesive tape than the adhesive tape itself, and the parting system being suitable for effecting the parting process without the main carrier being damaged.

Abstract: An adhesive tape for flying splice, having a left and right boundary edge, at least one main carrier and a first layer of self-adhesive on the obverse of the main carrier, the reverse of the main carrier bearing a parting system which is suitable for effecting an adhesive bond to a substrate that can be parted again in such a way that sticky residues are left neither on the reverse of the main carrier nor on the substrate in the region of the parted bond, the parting system being constructed in a particular form as described herein.

Abstract: An adhesive system for flying splice (“parting system”), suitable for producing an adhesive bond on a substrate that can be parted again in such a way that adhesive residues remain neither on the reverse of the adhesive tape nor on the substrate in the region of the parted adhesive bond.

Abstract: An adhesive tape for flying splice of flat web material which has been wound to form rolls, the adhesive tape having at least one carrier layer and a layer of adhesive, at least part of that surface of the carrier layer that faces that layer of adhesive being optically detectable, or optically detectable means being provided between the carrier layer and the layer of adhesive, and the layer of adhesive being designed such that the optical detection can be made through the layer of adhesive. The adhesive tape is modified such that its gloss value, i.e. the ratio of directed fraction and diffusely reflected fraction of the light stream incident on the surface, on the external surface of the layer of adhesive is reduced by at least 20% relative to an unmodified adhesive tape of otherwise identical construction.

Abstract: The invention relates to pressure-sensitive adhesive tapes for flying splice of flat web materials, having at least one splittable carrier and two layers of adhesive, at least one of the adhesives being a silicone PSA, more particularly an electron-beam-crosslinked silicone PSA, and also to a method of producing them. The silicone PSA advantageously has at least one polydiorganosiloxane having the structure —Si(R2)—O—[Si(R2)—O]n—Si(R2)—, where the 2n+4 substituents R independently of one another are monovalent hydrocarbon radicals and n is an integer, and also at least one resin (“MQ resin”) constructed from (R2)3SiO1/2— units (“M units”) and SiO4/2 units (“Q units”), the substituents R2 of the M units being independently of one another alkyl groups, alkenyl groups, alkylsilyl groups, hydroxyl groups or hydrogen.