Abstract: Heat-reflecting adhesive tape, preferably for wrapping elongate material such as, more particularly, leads or cable harnesses, having a tapelike backing composed of an assembly comprising at least one first layer, formed by a glass fabric having a basis weight of 30 to 200 g/m2, and at least one second layer, formed by a metallic layer having a thickness of 10 to 40 ?m and a thermal effectiveness to SAE J2302 at 350° C. of greater than 45° C., having a pressure-sensitive adhesive coating applied at least to one side of the backing, and at least one stripe of a covering which is provided on the free side of the adhesive coating and which extend(s) in the longitudinal direction of the adhesive tape and which cover(s) between 20% and 90% of the adhesive coating.

Abstract: The invention relates to an oriented pressure-sensitive adhesive and to a process for preparing it. The pressure-sensitive adhesive comprises an acrylate-based UV-crosslinked polymer which is synthesized in a mass fraction of at least 50% from at least one acrylic monomer according to the general formula (I) in which R1 is hydrogen (H) or a methyl group (CH3) and R2 is hydrogen (H) or a branched or unbranched, saturated C1 to C30 hydrocarbon radical, which may optionally be substituted by a functional group, the pressure-sensitive adhesive, in the form of a film applied as a melt (hotmelt), having a preferential direction which is characterized in the free film by a shrinkback of at least 3% relative to an original stretching of the film in the preferential direction. The orientation is generated after polymerization by means of a suitable coating process and is subsequently “frozen in” by UV crosslinking.

Abstract: The invention relates to a flat structure that is at least partially provided with a self-adhesive substance, the latter being present on a first surface layer of the flat structure in the form of a plurality of geometric bodies. According to the invention, the surface of at least some of the geometric bodies is at least partially treated in such a way that the treated part of the surface has a lower degree of adhesion than the non-treated self-adhesive substance.

Abstract: An adhesive strip or tape for producing or gluing optical liquid crystal data displays (LCD's) is disclosed. The adhesive tape comprises an upper side and a lower side; a carrier film having an upper side and a lower side, wherein a laminate made from a dye-free adhesive layer and a colored adhesive layer applied to one side of the carrier film; and at least one external adhesive layer applied on the upper and lower sides of the adhesive tape.

Abstract: Pressure-sensitive adhesive for single- or double-sidedly tacky pressure-sensitive adhesive strips redetachable without residue or destruction both by extensive stretching substantially in the bond plane and by peeling, the pressure-sensitive adhesive being composed at least of (1) a vinylaromatic block copolymer, (2) a solid tackifying resin having a softening temperature by the ring-and-ball method of more than 30° C. and (3) a resin which is liquid at room temperature (23° C.), the fraction of liquid resin accounting for at least 40% by weight, based on the total amount of resin. Strips formed from the adhesive and the use of the strips to form redetachable bonds are also disclosed.

Abstract: Process for temporary fixing of a polymeric layer material on rough surfaces, wherein the polymer layer material encompasses at least one viscoelastic layer, wherein the process involves laying the layer material on the rough surface, introducing energy in order to lower the viscosity of the at least one viscoelastic layer, in such a way that flow onto the rough surface takes place, and the layer is crosslinked in such a way as to produce a layer which has at least some elastomeric character and which at least to some extent wets the rough surface.

Abstract: Heat-reflecting adhesive tape (1), preferably for wrapping elongate material such as, more particularly, leads or cable harnesses, having a tapelike backing (2) composed of an assembly comprising at least one first layer (2a), formed by a glass fabric having a basis weight of 30 to 200 g/m2, and at least one second layer (2b), formed by a metallic layer having a thickness of 10 to 40 ?m and a thermal effectiveness to SAE J2302 at 350° C. of greater than 45° C., and having a pressure-sensitive adhesive coating (3) applied at least to one side of the backing (2), the flexural rigidity of the adhesive tape in longitudinal and transverse direction being less than 500 mN, preferably less than 300 mN (as measured with a Softometer KWS basic 2000 mN from Wolf).

Abstract: Method for producing a laser-printable film which comprises printing an engraving layer comprising a UV-curable coating onto a support film, applying an electron-beam curable coating on top of the engraving layer, and then curing the film by electron irradiation.

Abstract: Process for preparing crosslinked pressure-sensitive adhesives at least partly based on block copolymers comprising at least one polyvalent thioether unit, characterized in that at least the following process steps are carried out: two-stage or multi-stage free-radical addition polymerization of at least two copolymerizable monomers in the presence of at least one polyvalent mercaptan, at least one of the monomers being functionalized such that on irradiation with ultraviolet rays it initiates a UV crosslinking, the polymerization producing block copolymers containing at least one polyvalent thioether unit, coating of the polymer from the melt onto a backing, crosslinking of the polymer on the backing by irradiation with ultraviolet radiation.

Abstract: The invention relates to a method for producing pressure-sensitive adhesives that have low or no anisotropy, the process elements including an adhesive supply system, an application unit and a placement element. A melt strip of the pressure-sensitive adhesive is produced between the outlet of the application unit and the point of placement on the placement element and is stretched. The invention is characterized by controlling the stretching of the pressure-sensitive adhesive in the free melt strip by adjusting an effective ration G which is defined as the ratio of the effective time ?t of the stretching to the stretching rate R, and which is adjust to a value of not more that 0.008 s2. The effective time ?t is defined by the formula 2 Lr/[vstrip (1+r)] wherein L is the length of the melt strip, r is the stretching ratio and vstrip is the speed of the melt strip and the stretching rate R is defined as a temporal derivative of the stretching ratio r.

Abstract: The invention relates to a pressure-sensitive adhesive (PSA) tape, intended in particular for producing or bonding optical liquid-crystal data displays, having two PSA layers and at least one carrier sheet, characterized in that the PSA tape has light-reflecting properties on both its top and its bottom faces and at the same time is light-absorbing at least in so far as light not reflected is unable to penetrate the adhesive tape. With preference a white primer layer is provided at least between one face of the carrier sheet and the PSA layer located on that face.

Abstract: Disclosed is a pressure-sensitive adhesive tape, especially for creating adhesion of optical liquid crystal displays (LCDs), comprising a top face with light-reflective properties and a bottom face with light-absorbing properties, and a support film with a top face and a bottom face. Both faces of the contact-sensitive adhesive tape are provided with an outer pressure-sensitive adhesive layer (layers b, b?). The inventive pressure-sensitive adhesive tape includes at least one white-colored layer for creating the light-reflective effect and at least one pressure-sensitive adhesive layer (layer c) that is dyed black in order to create the light-absorbing effect are provided between the outer pressure-sensitive adhesive layers while at least the pressure-sensitive adhesive layer on the top face is transparent.

Abstract: The invention provides a substantially two-dimensional element (2D element) which bonds adhesively without bubbles under heat activation and has at least one heat-activable adhesive, one side face of said element having a groove element. The groove element comprises at least one groove adapted for the transport of a fluid. The groove is set into the side face of the 2D element in such a way that it is open towards the side face. It runs continuously from one edge section of the side face to a further edge section of the side face. By way of the groove structure formed from the at least one groove, liquid or gaseous fluids which form or collect in the bond area can be drained from the plane of the bond, thereby improving the strength of the bond. The invention further offers methods of producing and employing this 2D element.

Abstract: A pressure-sensitive adhesive (PSA) tape, particular for producing or bonding optical liquid-crystal data displays, having two PSA layers (b, b?) and at least one carrier sheet (a), wherein the PSA tape has light-reflecting properties on both its top and bottom faces and at the same time is light-absorbing at least in so far as light not reflected is unable to penetrate the adhesive tape. The PSA tape is implemented in particular in such a way that at least between one face of the carrier sheet and the PSA layer located on that face there is a white paint layer (c). As a preference, a metallic layer (d) is provided between the carrier sheet and the white paint layer.

Abstract: A pressure-sensitive adhesive tape, in particular for producing a bond between optical liquid crystal data displays (LCDs), comprising an upper and a lower side with light-reflecting properties on the upper side and light-absorbing properties on the lower side and further comprising a support film with an upper and a lower side, each side of the pressure-sensitive adhesive tape having an outer pressure-sensitive layer, and said adhesive tape being characterized in that at least one metallic reflective layer for the reflection of light is provided between the outer pressure-sensitive layers of at least one pressure-sensitive adhesive layer, colored black, for the absorption of light and in that at least the outer pressure-sensitive layer on the upper side is transparent.

Abstract: The invention relates to a self-adhesive protective film composed of a backing to one side of which an adhesive is applied, characterized in that the backing has at least two layers: a first layer, facing the adhesive, comprising an unoriented film which comprises at least one propylene block copolymer with an amount of 10% to 95% (w/w), and a second layer, facing away from the adhesive, comprising a film which contains at least 75% (w/w), preferably at least 80% (w/w), of a low-density polyethylene.

Abstract: Medical biosensor by means of which biological liquids are analyzed, having at least three layers; a functional layer to which a contact adhesive strip, adhesive on both sided, is applied, and a structural film applied to the contact adhesive strip.

Abstract: A pressure sensitive adhesive tape for producing or bonding optical liquid crystal data displays (LCD's) is disclosed. The pressure sensitive adhesive tape is constructed of an upper side and an underside, as well as a carrier film with an upper side and a lower side. At least one pressure sensitive adhesive layer is applied to both the upper and lower side of the adhesive tape. The adhesive tape also includes at least two black layers on one side of the carrier film between one of the outer pressure sensitive adhesives, and a silver-colored layer between the two black layers.

Abstract: A method for thermally welding an adhesive tape to a polymeric substrate wherein the backing of the adhesive tape enters into a cured physical connection with the polymeric substrate is disclosed. The adhesive tape is comprises a spunbonded backing that is coated, at least partially, on one side with a pressure sensitive adhesive, preferably natural rubber or acrylate. The spunbonded backing can comprise polyester or polypropylene fibers that do not melt during the welding process, and may optionally include additives such as pigments, UV stabilizers and flame retardants.

Abstract: Security label for use as a detector of first-time opening of an article, having an adhesive layer for application to the article, and a detection layer, the detection layer having an optical feature which irreversibly indicates an attempt at detachment from the article, the security label having an extensibility of at least 50% and being removable substantially without residue from the article by stretching, characterized in that the security label has a predetermined breakage point at which the security label can be divided into two parts on first-time opening.