Abstract: An acrylic pressure-sensitive adhesive was to be provided that finds use especially in a reversible adhesive tape that is redetachable without leaving any residue, the adhesive tape having a particularly flat paper backing with high air permeability, and thus gives rise to particularly precise and flat paint edges when applied. This is achieved by an acrylic pressure-sensitive adhesive based on polymers having the following monomer composition: (a) 97% to 99% by weight of monomers from the group comprising 2-ethylhexyl acrylate or 2-octyl acrylate or n-heptyl acrylate or mixtures of at least two of said monomers, (b) 1% to 3% by weight of (meth)acrylic acid and further comprising a crosslinking system, wherein the ratio of the reactive crosslinking groups and the carboxy groups of (meth)acrylic acid (b) is less than or equal to 7% and wherein the polymers are produced by emulsion polymerization.

Abstract: A foamed adhesive mass layer includes a) 41.7 to 62.0 wt. % of an elastomer component, b) 37.7 to 58.0 wt. % of an adhesive resin component, c) 0 to 15 wt. % of a soft resin component, d) 0 to 18 wt. % further additives, and e) microballoons with a proportion of preferably 0.3 to 2.5 wt. %, preferably 0.5 to 2.0 wt. % and particularly preferably 0.7 to 1.7 wt. %, wherein the microballoons are at least partially expanded, wherein the elastomer component (a) consists of up to at least 90 wt. % polyvinyl aromatic compound polydine block copolymer, wherein the adhesive resin component (b) contains up to 4 to 100 wt. % of at least one type K1 if a rosin oligomer with a softening temperature (Ring & Ball, Test VI) of at least 90° C., and wherein the density (Text IX) of the foamed adhesive mass layer is at least 600 kg/m3 and max. 920 kg/m3.

Abstract: A tape assembly for masking an object to be painted and method of use is provided. The tape assembly is defined by a tape body having an anterior side, a posterior side, a body first edge, and an opposing body second edge. The tape body includes a first portion including a first substrate having a first adhesive layer on a posterior side of the first substrate, a second portion including a second substrate having a second adhesive layer on an anterior side of the second substrate, and a third portion including a third substrate having a third adhesive layer on a posterior side of the third substrate. The first and third portions partially overlap with the second portion in opposing first and second overlapping regions, respectively.

Abstract: The invention relates to a curable adhesive comprising: a) one or more (co)polymers, b) one or more polymerizable epoxide compounds, c) one or more cationic initiators, and d) one or more pH colour indicators with at least one pH-dependent colour change, where the mass ratio of the combined mass of the cationic initiators to the combined mass of the pH colour indicators in the curable adhesive is 5:1 or more, and where the composition of the curable adhesive is such that a pH-dependent colour change of the one or more pH colour indicators takes place during the cationic curing of the curable adhesive at a moment at which the bond strength of the curing adhesive is in the range from 20% to 80% of the maximum bond strength achievable through the cationic curing.

Abstract: A curable adhesive includes, based on the mass of the curable adhesive: a) one or more (meth)acrylate block copolymers of the structure A-B-A in a combined mass fraction of 25% or more, b) one or more polymerizable first epoxide compounds E1 in a combined mass fraction of 5% or more, and c) one or more polymerizable second epoxide compounds E2 in a combined mass fraction of 5% or more, where the second epoxide compound E2 at 25° C. is a liquid, where the amount-of-substance-weighted polar component of the Hansen solubility parameters <?p> of the monomer units derived from A monomers in the A blocks, <?p>(A), is in the range from 9.0 to 11.0 MPa0.5, and where the amount-of-substance-weighted polar component of the Hansen solubility parameters <?p> of the monomer units derived from B monomers in the B blocks, <?p>(B) is less than 9 MPa0.5.

Abstract: The invention relates to a pressure-sensitive adhesive compound, a pressure-sensitive adhesive tape, a bonded assembly, a method for electrically debonding the bonded assembly, and the use of the pressure-sensitive adhesive compound. The pressure-sensitive adhesive compound contains a) at least one crosslinked polyurethane prepared by crosslinking one or more polyurethane prepolymers, at least one of the polyurethane prepolymers being based on at least one polyol which is selected from the group consisting of polyester polyols, polycarbonate polyols and polyether polyols; and b) at least one electrolyte, the electrolyte being selected from the group consisting of ionic liquids and metal salts, ionic liquids being particularly preferred.

Abstract: Rolls and/or reels of an adhesive element material web are disclosed and comprise at least one row of a multiplicity of adhesive elements, arranged sequentially with mutual spacing, which are applied on a release material in web form such that preferably the release material is on the inside of the winding and the adhesive elements are on the outside of the winding, wherein at least one edge or both edges of the release material have trapezoidal recesses which are present respectively between two adjacent adhesive elements, without the recesses undercutting the area of the adhesive elements, with the base of the trapezoidal recesses forming the notional edge of the liner.

Abstract: The invention concerns a release coating for furnishing a release liner, comprising ? a release agent and ? 0.01% to 30% by weight, based on the total weight of the release coating, of three-dimensional elements K and being characterized in that the elements K contain in total at least 90% by weight of one or more polysaccharides. The invention further concerns the use of such a release coating in release liners or on reverse sides of adhesive-tape carriers and also release liners equipped therewith and the use thereof in adhesive tapes.

Abstract: The present invention relates to an adhesive tape comprising at least one carrier that has a thickness of 20 to 250 ?m, preferably 50 to 150 ?m, and has at least one layer (i) based on preferably uncrosslinked thermoplastic polyurethane that has been produced by means of extrusion, wherein the polyurethane is based on aromatic polyisocyanate, such as aromatic diisocyanate in particular, or (ii) based on preferably uncrosslinked polyurethane that has been produced from a dispersion, wherein a pressure-sensitive adhesive layer is disposed on at least one side, preferably both sides, of the carrier. The invention also relates to processes for producing the adhesive tape and to the use thereof for bonding of components in electrical, electronic, optical or precision mechanical devices, such as, in particular, of windows or lenses in housings of precision mechanical, optical and/or electronic devices.

Abstract: Systems and methods having a transfer belt are provided and comprise a) a dispenser device having dispenser units, an adhesive-element guide system, and a transfer unit, and b) an application device arranged on an automated moving unit and a conveying element and an application element. The systems are designed such that (i) the application device is moved into a transfer position relative to the dispenser device by means of the automated moving unit, and (ii) the systems may pick up adhesive elements and apply the adhesive elements to a substrate to be bonded to.

Abstract: An application device includes: a cassette device and a base device. The cassette device has a housing with a first opening that can accommodate a tape being guided along a path; and a guide unit arranged in the housing configured to guide the tape such that a first side of the tape faces the first opening in the first section of the path. The base device comprises a main body and a deflection unit having a deflection element, arranged on a second side of the tape, and opposite the first section of the path. The deflection unit is coupled to the main body such that it can be moved between retracted and extended positions. In the retracted position, the deflection element and the tape are in the interior. In the extended position, a portion of the tape bears against the deflection element.

Abstract: The invention relates to a method for covering elongated articles, in particular cable sets using a curable adhesive tape.

Abstract: The invention relates to a method for covering elongated articles, in particular cable sets using a curable adhesive tape.

Abstract: Compositions, articles, and methods involving pressure-sensitive adhesives comprising polymer-grafted particles are generally described.

Abstract: Disclosed are powerful adhesive tapes, which rapidly coat rough and/or curved surfaces with different surface energies and thereby build up high adhesion. The adhesive joints formed in this way furthermore have good shear strength, even at elevated temperatures. Finally, enduring mechanical loading on the adhesive joints does not lead to the adhesive tape peeling from the surface. This is achieved with an adhesive tape comprising at least one foamed layer and at least one adhesive compound layer, wherein the adhesive compound layer contains at least one poly(meth)acrylate, and the poly(meth)acrylate is cross-linked with at least one covalent and at least one coordinative cross-linker.

Abstract: An adhesive tape that includes: a first adhesive layer defining an upper surface of the tape; a second adhesive layer defining a lower surface of the tape; and a reinforcement layer (or first and second reinforcement layers) and a thermally activated layer between the first adhesive layer and the second adhesive layer. The thermally activated layer is a thermoplastic polymer layer. The thermoplastic layer may be made of ethylene-vinyl acetate copolymer, modified polyolefin, ethylene acrylic acid copolymer, ethylene terpolymer, polyamide copolymer, poly(trans-1,4-isoprene), polyethylene oxide, or a combination thereof. Further, the thermoplastic layer may exhibit a melting point from 60° C. to 150° C. and may have a molecular weight from 1,000 to 1,000,000.

Abstract: The invention relates to an adhesive tape system comprising a film D composed of a heat-activatable reactive adhesive and a primer composition, to a method of producing a bonded composite using the adhesive tape system, to the bonded composite produced by the method, to a method of electrically debonding the bonded composite and to the use of the bonded composite. The tape system comprises (i) a film D of a reactive heat-activatable adhesive, where the reactive heat-activatable adhesive contains at least one electrolyte; and (ii) a primer composition which is intended to form a separate layer and contains at least the following constituents: (a) at least one thermoplastic polyurethane; and (b) at least one organosilane.

Abstract: The invention relates to an adhesive compound, to an adhesive tape, to a bonded assembly, to a method for electrically debonding the bonded assembly, and to the use of the adhesive compound or adhesive tape for bonding components in electronic devices, automobiles, medical devices and dental devices. The adhesive compound comprises a) at least one first ionic liquid which has a pH of less than or equal to 7, and b) at least one second ionic liquid which has a pH of greater than 7, wherein a pure mixture of all ionic liquids contained in the adhesive compound and a) having a pH of less than or equal to 7 and b) having a pH of greater than 7 has a pH of 5.5 to 9.

Abstract: The present disclosure relates to an adhesive printing form attachment layer comprising a support, and a permanently sticky layer suitable for receiving a printing form and fixing a printing form during a printing operation provided on the support, wherein the permanently sticky layer comprises a crosslinked silicone-based material. The present disclosure further relates to a method for preparing an adhesive printing form attachment layer, as well as a printing cylinder comprising it, the use of the an adhesive printing form attachment layer for fixing a flexographic printing plate during a printing operation on a printing cylinder, and a method of operating a printing machine wherein the adhesive printing form attachment layer is used.

Abstract: Punched articles permanently close holes in metal sheets or in plastic parts and comprise a carrier made of a composite laminate composed of at least one first layer formed by a needle-punched nonwoven and containing polyacrylonitrile fibers, optionally at least one second layer formed by a first pressure-sensitive adhesive compound, at least one third layer formed by a glass woven fabric or glass laid fabric with a weight per unit of area of 30 to 200 g/m2, optionally at least one fourth layer formed by a second pressure-sensitive adhesive compound, at least one fifth layer formed by a metal layer, and at least one sixth layer formed by an acrylate-based pressure-sensitive adhesive compound with a weight per unit area of 300 to 1800 g/m2.