An object of the present invention is to provide an adhesive tape that can be removed from an adherend more easily and more rapidly. The adhesive tape of the present invention includes a base material layer, and adhesive layers on both sides of the base material layer, the base material layer has a thickness of 10 to 100 μm, a breaking strength of 20 to 90 MPa, a breaking elongation of 400% to 1,500%, and a 100% modulus of 1 to 5 MPa, and an adhesive composition forming the adhesive layers contains 1% to 40% by mass of filler particles having an average particle diameter of 0.1 to 40 μm with respect to 100% by mass of the adhesive composition.

An adhesive supplementary marker that is configured to be used together with an adhesive examination marker to be attached to an examination target of image diagnosis using microwaves, and that is configured to be disposed between the adhesive examination marker and the examination target and pressed toward the examination target by the adhesive examination marker in a state in which the adhesive examination marker is attached to the examination target. The adhesive supplementary marker includes a laminate including a base film having a thickness of 20 μm or less, and a pressure-sensitive adhesive layer configured to be attached to the examination target. The base film has a Young's modulus of 1.0 GPa or more.

A method for the production of pressure-sensitive adhesive tapes includes providing a web-shaped substrate, providing a pressure-sensitive adhesive composition and/or a precursor for a pressure-sensitive adhesive composition, wherein the pressure-sensitive adhesive composition and/or the precursor for a pressure-sensitive adhesive composition comprising at least one polymerisable (meth)acrylate monomer and/or (meth)acrylate oligomer and/or (meth)acrylate polymer and at least one polymerisation initiator and having a solvent content of <5% by weight, based on the total mass of the pressure-sensitive adhesive composition, applying the pressure-sensitive adhesive composition and/or its precursor to one or both sides of at least sections of the web-shaped substrate, transporting a web-shaped substrate to which the pressure-sensitive adhesive composition and/or its precursor has been applied along a predetermined transport path, wherein the transport path extending at least in sections in the region of influence of an emitter for electromagnetic radiation, electrons or accelerated ions, electrons or accelerated ions, activation of the polymerisation initiator by acting upon with electromagnetic radiation, electrons or accelerated ions during the transport of the web-shaped substrate along the predetermined transport path, and polymerisation of the pressure-sensitive adhesive composition and/or of the precursor for a pressure-sensitive adhesive composition on the web-shaped substrate during its transport. Furthermore, an apparatus for carrying out this method and a pressure-sensitive adhesive tape produced according to this method are disclosed.

The present invention provides a UV debondable pressure sensitive adhesive composition and an adhesive tape comprising the same. The UV debondable pressure sensitive adhesive composition comprises a polyacrylate pressure sensitive adhesive, a UV-light polymerizable polyurethane oligomer, a cationic photoinitiator and a free radical photoinitiator, wherein polymerization monomers of the polyacrylate pressure sensitive adhesive comprise an acrylic monomer having an epoxy functional group. The UV debondable pressure sensitive adhesive composition has a bonding force dropping significantly upon UV irradiation, and leaves no residual adhesive.

Provided is a PSA sheet that can be used on a metal adherend because it has anti-metal-corrosive properties and can also maintain good removability while preventing or inhibiting adherend surface contamination even when prolongedly adhered to the adherend. A PSA sheet having a PSA layer is provided. The PSA layer comprises at least 95% base polymer by weight and has a chloride ion amount of less than 300 μg per gram of pressure-sensitive adhesive layer, determined by hot water extraction.

Provided is a method for preparing a PSA composition for protecting Low-E glass plates from degradation and corrosion. A PSA composition preparation method is provided for Low-E glass plate protection. The method comprises a step of obtaining an aqueous liquid, and a step of obtaining a polymer-containing liquid comprising the aqueous liquid and a polymer. Here, the aqueous liquid satisfies at least (a) having an electrical conductivity below 300 μS/cm or (b) having a chloride ion concentration below 35 μg/mL.

The present disclosure provides a two-component adhesive composition. The two-component solvent-based adhesive composition contains the reaction product of (A) an isocyanate component; (B) a dimer acid polyester polyol component containing the reaction product of a reaction mixture including (i) from 20 wt % to 60 wt % dimer acid, based on the total weight of the dimer acid polyester polyol component, (ii) a dicarboxylic acid, and (iii) a polyol; and (C) a solvent.

Provided is an airtight member for foundation superior in sealing performance on a side surface and a bottom surface of a sill and capable of easily adjusting an installation position thereof. An airtight pressure-sensitive adhesive tape for foundation having: a band-shaped airtight elastic sheet having a front surface, a back surface and two side edge portions opposing each other; a virtual L-shape fold line located away from one of the side edge portions of the elastic sheet toward the inside of the elastic sheet; and a band-shaped pressure-sensitive adhesive layer being parallel to the side edge portions of the elastic sheet and being formed in a region of the front surface of the elastic sheet extending from one of the side edge portions up to the virtual L-shape fold line; and having no pressure-sensitive adhesive layer on other regions of the front surface and the back surface of the elastic sheet.

A sealing device including a waterproofing membrane, a sealant layer covering at least a portion of the second primary exterior surface of the waterproofing membrane and an adhesive layer covering a portion of the outer major surface of the sealant layer facing away from the second primary exterior surface of the waterproofing membrane, wherein the sealant layer is composed of an adhesive sealant composition comprising at least one elastomer, at least one at 25° C. liquid polyolefin resin, and at least one inert mineral filler. A method produces a sealing device, a method waterproofs a substrate, and a waterproofed substrate.

Described herein is a method of using an adhesive article on a gypsum board construction assembly. The gypsum board construction assembly has a first gypsum board unit and a second gypsum board unit defining a space therebetween, the method comprises obtaining the adhesive article, wherein the adhesive article comprises a first major surface and an opposing second major surface, wherein an adhesive is disposed on the first major surface and the opposing second major surface has a surface free energy of at least 29 mN/m, and wherein the adhesive article has an adhesion to gypsum board of at least 45 oz/in (0.49 N/mm); and fixedly attaching the adhesive article via the adhesive to a first and second attachment areas, wherein the first gypsum board unit comprises an outer paper surface and the second gypsum board unit comprises an outer paper surface and the first attachment area is on the outer paper surface of the first gypsum board unit and the second attachment area is on the outer paper surface of the second gypsum board unit, and wherein the portion of the adhesive article disposed over the space is non-porous.