A display device includes a display module and a housing. At least one roller is disposed in the housing. The display module is configured to be wound on the at least one roller and to be inserted and drawn from the housing. The display module comprises a display panel, a window on the display panel and an adhesion layer between the display panel and the window. The adhesion layer comprises a first polymer layer having positive charges and a second polymer layer having negative charges. The second polymer layer is directly disposed on the first polymer layer.

The present invention relates to hot-melt, pressure-sensitive adhesives (HM-PSA); self-adhering, vapor-permeable air-barriers comprising such HM-PSA; and the process of adhering such air-barriers on to construction material substrates in a primer-less fashion to control the vapor movement of water vapor and air.

A hot-melt adhesive comprising a thermoplastic resin and a first crystalline material, wherein when in differential scanning calorimetric measurement of the hot-melt adhesive, Tc (° C.) is a peak temperature of the highest peak of exothermic peaks observed in a temperature reduction process at 10° C./min following heating to 150° C. and Tm (° C.) is a peak temperature of the highest peak of endothermic peaks observed in a temperature increasing process at 10° C./min following the temperature reduction process, Tm-Tc is 20.0 to 70.0° C., and a tetrahydrofuran-soluble matter of the hot-melt adhesive has a weight-average molecular weight Mw, as measured by gel permeation chromatography, of 100,000 to 400,000.

A display device including a display panel, a variable adhesive layer disposed on the display panel and a cover member disposed on the variable adhesive layer is provided. The variable adhesive layer includes a block copolymer and a plasticizer mixture, and the plasticizer mixture has a low critical solution temperature (LCST) of 60° C. to 80° C. The plasticizer mixture is phase-separated into two phases at a temperature equal to or higher than the low critical solution temperature, thereby significantly lowering adhesion of the variable adhesive layer. Accordingly, the display device of the present disclosure has excellent adhesion reliability and provides an advantage of easy reworking since the adhesion significantly decreases at a temperature equal to or higher than the low critical solution temperature. In addition, the display device has excellent folding characteristics due to the presence of the plasticizers.

A single-component sealant or adhesive composition, including: a) an aqueous polymer dispersion comprising water and at least one water-dispersed polymer P having a median particle size D50 of less than 150 nm, b) at least one water-dispersed or water-dissolved epoxy- or carbodiimide-functional cross-linker C, wherein the pH of the composition is adjusted in the range of 7 to 12, and wherein the at least one water-dispersed polymer P is included in the composition with an amount of at least 45 wt.-%, based on the total composition, and wherein the epoxy- or carbodiimide-functional cross-linker C is included in the composition with an amount of between 0.5 and 5 wt.-%, based on the total composition.

Provided is a composite film for attachment to an elastomeric substrate. The composite film comprises the following layers, in the order below: an elastomeric layer comprising a thermoplastic polyurethane; an ink layer; and a pressure sensitive adhesive layer comprising a styrenic block copolymer blended with a phenolic resin. Advantageously, the provided composite films can withstand harsh outdoor environments and stresses while providing high anchorage to elastomeric substrates, such as car tires, for a long service life.

The present invention relates to an adhesive tape of thickness 40 to 300 μm that can be redetached without residue or destruction by stretching essentially in the plane of the bond, comprising at least one carrier of thickness 10 to 150 μm comprising at least one layer based on preferably uncrosslinked thermoplastic polyurethane that has typically been produced by means of extrusion and has a Shore A hardness of not more than 87, where the carrier has a ratio of force at 400% elongation F.sub.400% to breaking force F.sub.break of not more than 45%, and on which a pressure-sensitive adhesive layer is disposed on at least one side, and wherein the adhesive tape has a ratio of stripping force F.sub.strip to breaking force F.sub.break of less than 60%. The invention also relates to an adhesive tape of thickness 40 to 300 μm that can be redetached without residue or destruction by stretching essentially in the plane of the bond, comprising at least one carrier of thickness 10 to 150 μm comprising at least one layer based on preferably uncrosslinked polyurethane that has been produced from a dispersion and has a modulus at 100% elongation of not more than 1.8 MPa, where the carrier has a ratio of force at 400% elongation F.sub.400% to breaking force F.sub.break of not more than 30%, and on which a pressure-sensitive adhesive layer is disposed on at least one side, and wherein the adhesive tape has a ratio of stripping force F.sub.strip to breaking force F.sub.break of less than 60%. The invention also relates to a process for producing the adhesive tapes and to the use thereof for bonding of components in electronic devices.

Pressure-responsive particles include pressure-responsive base particles and fatty acid metal salt particles, in which the pressure-responsive base particles contain a styrene-based resin which contains styrene and other vinyl monomers as polymerization components and a (meth)acrylic acid ester-based resin which contains at least two kinds of (meth)acrylic acid esters as polymerization components and in which amass ratio of the (meth)acrylic acid esters to all polymerization components is 90% by mass or higher, the pressure-responsive particles have at least two glass transition temperatures, and a difference between the lowest glass transition temperature and the highest glass transition temperature is 30° C. or higher.

Pressure-responsive particles include pressure-responsive base particles and inorganic oxide particles, in which the pressure-responsive base particles contain a styrene-based resin which contains styrene and other vinyl monomers as polymerization components and a (meth)acrylic acid ester-based resin which contains at least two kinds of (meth)acrylic acid esters as polymerization components and in which amass ratio of the (meth)acrylic acid esters to all polymerization components is 90% by mass or higher, a liberation rate of the inorganic oxide particles is 10% by mass or higher and 40% by mass or lower, the pressure-responsive particles have at least two glass transition temperatures, and a difference between a lowest glass transition temperature and a highest glass transition temperature is 30° C. or higher.

Pressure-responsive particles include pressure-responsive base particles and first inorganic oxide particles, in which the pressure-responsive base particles contain a styrene-based resin which contains styrene and other vinyl monomers as polymerization components and a (meth)acrylic acid ester-based resin which contains at least two kinds of (meth)acrylic acid esters as polymerization components and in which a mass ratio of the (meth)acrylic acid esters to all polymerization components is 90% by mass or higher, Db/Da which is a ratio of a number average particle diameter Db of the first inorganic oxide particles to a number average particle diameter Da of the pressure-responsive base particles is 0.05 or higher and 0.25 or lower, the pressure-responsive particles have at least two glass transition temperatures, and a difference between a lowest glass transition temperature and a highest glass transition temperature is 30° C. or higher.