Abstract: A reactive PSA film that includes: (a) a polymeric film former matrix; (b) one or more reactive components; and (c) a reagent selected from an initiator, a curing agent and an activator. The component (b) is present at a mass fraction of ?30%, as based on the sum of (a), (b) and (c). Further, ?50 wt % of the film former matrix is a crystallizable polymer which: (i) exhibits a crystallization enthalpy of <1 J/g in a DSC measurement on cooling at 10K/min from at least 30K above a peak temperature of the melting peak of the polymer or ?100° C., whichever is greater; and (ii) exhibits a crystallite fusion enthalpy of ?15 mJ/mg in its pure state in a first heating curve of a DSC measurement at 10K/min and after storage for ?one month from 15 to 25° C. and relative humidity from 30 to 70%.

Abstract: A laminate that includes: (i) a first pressure-sensitive adhesive layer, the first layer comprising a block copolymer containing at least one polymer block formed from vinylaromatics and at least one polymer block formed from alkenes; (ii) a metal layer disposed on the first layer; (iii) a blowing agent layer disposed on the metal layer; and (iv) a second pressure-sensitive adhesive layer disposed on the blowing agent layer, the second layer comprising a block copolymer containing at least one polymer block formed from vinylaromatics and at least one polymer block formed from alkenes.

Abstract: Primer for producing a partable adhesive bond, the primer being based on a pressure-sensitive adhesive which comprises a chemical or physical blowing agent.

Abstract: Systems and methods produce or provide a folded connection, sealed by means of an adhesive composition, between a first sheetlike element and a second sheetlike element. The systems and methods bond a second flange of the second sheetlike element with at least one layer of an adhesive composition to a first flange of the first sheetlike element, in such a way that an end of the second flange of the second sheetlike element is indented by a distance relative to an end of the first flange of the first sheetlike element. The systems and methods bead the first flange of the first sheetlike element around the second flange of the second sheetlike element and, after the beading, an adhesive-composition part is placed around an edge of the first flange of the first sheetlike element and bonded to a second surface of the first flange of the first sheetlike element.

Abstract: An adhesive comprising a getter material and optionally a solvent comprising a catalyst activatable by means of an external stimulus for the reaction of the getter material with a permeate can tolerate brief contact with permeates such as moisture in particular before user application, without any significant impairment of getter capacity.

Abstract: A reactive PSA film that includes: (a) a polymeric film former matrix; (b) one or more reactive components; and (c) a reagent selected from an initiator, a curing agent and an activator. The component (b) is present at a mass fraction of 30%, as based on the sum of (a), (b) and (c). Further, ?50 wt % of the polymer film former matrix is a crystallizable polymer which: (i) exhibits a crystallization enthalpy of <1 J/g in a DSC measurement on cooling at 10 K/min from at least 30K above a peak temperature of the melting peak of the matrix and ?100° C.; and (ii) exhibits a crystallite fusion enthalpy of ?15 mJ/mg in its pure state in a first heating curve of a DSC measurement at 10 K/min and after storage for ? one month from 15 to 25° C. and relative humidity from 30 to 70%.

Abstract: Methods produce a folded connection, sealed by means of an adhesive composition and by means of first and second sheetlike elements, wherein a flange of the first sheetlike element, having a first surface (11) and a second surface (12), is taken back over a flange of the second sheetlike element. The methods apply at least one layer of an adhesive composition to the flange of the first sheetlike element, bead the flange of the first sheetlike element around the flange of the second sheetlike element, and apply the adhesive composition to both the first and second surfaces of the flange of the first sheetlike element.

Abstract: Pressure-sensitive adhesive compound comprising at least two components forming one phase each, from which an IPN with at least two phases is produced by a cross-linking build-up reaction, the first phase having at least a softening point temperature of less than 23° C., and the second phase, after the build up reaction, having a softening temperature of greater than 23° C., the two phases having a morphology of a cross-linked nanoparticle network after the build-up reaction.

Abstract: A process for producing a viscous epoxy syrup from at least one liquid multifunctional epoxy, comprising the steps of: adding an initiator selected from the group consisting of electron-poor monoisocyanate, photoinitiator and thermal initiator to at least one liquid multifunctional epoxy; mixing the components; polymerizing the multifunctional epoxy such that the viscosity of the resulting epoxy syrup is at least twice as high, preferably at least four times as high and in particular at least ten times as high as the viscosity of the employed epoxy in the unreacted state makes it possible to produce epoxy adhesives having pressure-sensitive properties.

Abstract: The invention relates to a joining method wherein a first surface (2) of a first adherend (1) and a second surface (8) of a second adherend (6) are bonded to one another by provision of an adhesive tape (3) having a first side (4) and a second side (7), there being disposed on the first side (4) a first activatable adhesive and on the second side (7) a second activatable adhesive, the latter being an activatable pressure-sensitive adhesive, the first side (4) of the adhesive tape (3) is contacted with the first surface (2) of the first adherend (1) to produce a preliminary assembly, the second surface (8) of the second adherend (6) is joined in a joining movement to the second side (7) of the adhesive tape (3), the joining movement having a tangential component and a perpendicular component relative to the second side (7) of the adhesive tape (3), with a ratio between tangential and perpendicular components of greater than 0.

Abstract: An adhesive having water vapor barrier properties, comprising an adhesive base comprised of at least one epoxy syrup at least one elastomer at least one initiator optionally at least one tackifier resin and optionally at least one further reactive resin and optionally a solvent, wherein the adhesive base without solvent has a water vapor permeation rate after activation of the reactive resin component of less than 100 g/m2d, preferably of less than 60 g/m2d, in particular less than 30 g/m2d, wherein the epoxy syrup comprises bisepoxy monomers and high molecular weight uncrosslinked polyepoxies produced therefrom, exhibits good barrier properties and is also sufficiently pressure sensitive to achieve easy handleability.

Abstract: A process for producing a viscous epoxy syrup from at least one liquid multifunctional epoxy, comprising the steps of: adding an initiator selected from the group consisting of electron-poor monoisocyanate, photoinitiator and thermal initiator to at least one liquid multifunctional epoxy; mixing the components; polymerizing the multifunctional epoxy such that the viscosity of the resulting epoxy syrup is at least twice as high, preferably at least four times as high and in particular at least ten times as high as the viscosity of the employed epoxy in the unreacted state makes it possible to produce epoxy adhesives having pressure-sensitive properties.

Abstract: Disclosed is an electrochemical cell or a stack of at least two electrochemical cells, wherein at least two components of the electrochemical cell or of the stack of electrochemical cells are bonded together by means of a strip of adhesive which can be removed again, in particular without residue or destruction, by stretching substantially in the bonding plane, wherein the strip of adhesive comprises one or more adhesive material layers and optionally one or more carrier layers, and wherein the outer upper surface and the outer lower surface of the strip of adhesive are formed by the one or more adhesive material layers. Also disclosed is the use of a strip of adhesive of this kind for bonding together components in an electrochemical cell or in a stack of at least two electrochemical cells.

Abstract: A method comprising bonding an element to one or more bonding substrates by inductive heating using a magnetic field whose frequency is situated in a frequency range from 100 Hz to 200 kHz. The element comprises at least one electrically conducting layer having an electrical conductivity of more than 40 MS/m for 300K and at least one heat-activatable adhesive layer coated onto at least one side of the electrically conducting layer, and the heat-activatable adhesive layer comprises at least one thermally conductive filler. The material of the thermally conductive filler has a thermal conductivity of at least 0.5 W/(m*K) and is electrically nonconducting such that the element provides, in a direction perpendicular to the areal extent of the element, an electrical breakdown resistance, as determined in accordance with VDE 0100.

Abstract: A barrier adhesive for the encapsulation of an (opto)electronic arrangement comprising an adhesive base composed of at least one reactive resin having at least one activatable group, at least one polymer, especially an elastomer, optionally at least one tackifying resin, where the adhesive base has a water vapour permeation rate after the activation of the reactive resin of less than 100 g/m2d, preferably of less than 50 g/m2d, especially less than 15 g/m2d, a transparent molecularly dispersed getter material and optionally a solvent, wherein the getter material is at least one silane having at least one alkoxy group and at least one activatable group.

Abstract: The invention relates to a rolled up thin glass composite comprising a thin glass film and at least one further layer (10, 11, 20, 30) applied over the surface of one side of the thin glass film, wherein the at least one further layer (10, 11, 20, 30) is applied to a radially outer side of the rolled up thin glass film and the at least one further layer (10, 11, 20, 30) contains a desiccant which protects the thin glass film against stress corrosion cracking.

Abstract: Systems and methods produce or provide a folded connection, sealed by means of an adhesive composition, between a first sheetlike element and a second sheetlike element. The systems and methods bond a second flange of the second sheetlike element with at least one layer of an adhesive composition to a first flange of the first sheetlike element, in such a way that an end of the second flange of the second sheetlike element is indented by a distance relative to an end of the first flange of the first sheetlike element. The systems and methods bead the first flange of the first sheetlike element around the second flange of the second sheetlike element and, after the beading, an adhesive-composition part is placed around an edge of the first flange of the first sheetlike element and bonded to a second surface of the first flange of the first sheetlike element.

Abstract: The invention relates to a method for absorbing permeates from a sheet material I, as used, for example, in organic electronic structures, this method being easy to carry out. Such a method includes, according to the invention, directly or indirectly bringing sheet material I into planar contact with a sheet material II, which contains at least one getter material and is capable of absorbing at least one permeate from sheet material I, there being no adhesive connection between sheet material I and sheet material II.

Abstract: Disclosed is a composite film comprising a coating layer, a polymer film layer, and an adhesive layer, the coating layer being joined to one major surface of the polymer film layer, and the adhesive layer being joined to the opposite major surface of the polymer film layer, in such a way that the polymer film layer is embedded between the coating layer and the adhesive layer. Self-healing properties of the coating and elastic properties of the film act synergistically in such a way that the protective film exhibits a wear resistance which is achieved by neither coating nor film alone.

Abstract: An adhesive comprising a getter material and optionally a solvent comprising a catalyst activatable by means of an external stimulus for the reaction of the getter material with a permeate can tolerate brief contact with permeates such as moisture in particular before user application, without any significant impairment of getter capacity.