A vibration device includes a piezoelectric element and an adhesive layer. The piezoelectric element includes a first principal surface and a second principal surface opposing each other. The adhesive layer is disposed on the first principal surface and is in contact with the first principal surface. A tensile strength of the adhesive layer is 10 N/cm or more and 48 N/cm or less.

A method of and system for adhesive bonding by a) providing a polymerizable adhesive composition on a surface of an element to be bonded to form an assembly; b) irradiating the assembly with radiation at a first wavelength capable of vulcanization of bonds in the polymerizable adhesive composition by activation of sulfur-containing compound with at least one selected from x-ray, e-beam, visible, or infrared light to thereby generate ultraviolet light in the polymerizable adhesive composition; and c) adhesively joining two or more components together by way of the polymerizable adhesive composition, and a curable polymer for use therein.

Provided are an adhesive composition which can give high adhesive force to a wet surface and also ensures storage stability of a moisture-curable component, an adhesive layer made from the adhesive composition, and an adhesive sheet including the adhesive layer. An adhesive composition including a base polymer and a moisture-curable component, wherein the base polymer contains a polymer having a functional group that becomes a functional group capable of reacting with the moisture-curable component through a reaction with water, and the moisture-curable component is contained in an unreacted state.

Provided are an adhesive composition which can give high adhesive force to a wet surface and also ensures storage stability of a moisture-curable component, an adhesive layer made from the adhesive composition, and an adhesive sheet including the adhesive layer. An adhesive composition including a base polymer and a moisture-curable component, wherein the base polymer contains a polymer having a functional group that becomes a functional group capable of reacting with the moisture-curable component through a reaction with water, and the moisture-curable component is contained in an unreacted state.

Provided is a foam sheet showing little change in dielectric constant even when exposed under a high-humidity condition. The foam sheet of the present invention includes: a foam layer; and a pressure-sensitive adhesive layer arranged on at least one side of the foam layer, wherein the foam sheet has a dielectric constant change amount [(YX)100]/X of 10(%) or less, where X (F/m) represents a dielectric constant of the foam layer immediately after the foam sheet has been left at rest under conditions of a temperature of 23 C. and a humidity of 50% for 2 hours, and Y (F/m) represents a dielectric constant of the foam layer immediately after the foam sheet has been left at rest under conditions of a temperature of 60 C. and a humidity of 95% for 24 hours.

Adhesive tapes include a plasticized polyvinyl chloride backing, a primer including an ethylene/carbon monoxide-containing terpolymer and a styrene-containing block copolymer, and an adhesive.

Disclosed is a method of manufacturing an antimicrobial adhesive film including (a) providing an adhesive film including a substrate film and an adhesive layer formed on one surface of the substrate film, (b) forming a laminated film including an antimicrobial material layer/substrate film/adhesive layer by applying an antimicrobial solution including an antimicrobial material and a solvent on the remaining surface of the substrate film of the adhesive film and performing drying, and (c) manufacturing an antimicrobial adhesive film including a substrate film/adhesive layer/antimicrobial material layer by rolling the laminated film into a cylinder shape so that the antimicrobial material layer and the adhesive layer are brought into contact with each other to thereby transfer the antimicrobial material layer onto the adhesive layer.

The invention relates to a thermally curable adhesive compound consisting of the following components: (A) 4.9 to 34.9 wt % (relative to the total amount of the curable adhesive compound) of an epoxide-functionalized (co)polymer having a weight-average molar mass in the range of 5,000 g/mol to 200,000 g/mol, based on more than 30 to 100 wt %, preferably 50 to 100 wt %, (relative to the total amount of the monomers on which the epoxide-functionalized (co)polymer is based) of at least one type of (meth)acrylic (co)monomer (a) functionalized with an epoxy group, (B) 0.1 to 5 wt % (relative to the total amount of the curable adhesive compound) of at least one thermally activatable curing agent for a cationic curing of epoxides, (C) 65 to 95 wt % (relative to the total amount of the curable adhesive compound) of at least one type of matrix polymer as a film-forming agent, (D) optionally 0 to 30 wt % of additional components.

A multi-layer plastic film as a carrier film for a glue layer, comprising a layer sequence of (a) an outer layer (a) based on a mixture of ) 3-15 wt % of an extrudable glue and ) 85-97 wt % of at least one C.sub.2-C.sub.8 olefin-alkyl acrylate copolymer, C.sub.2-C.sub.8 olefin-methacrylic acid copolymer and/or C.sub.2-C.sub.8 alkyl methacrylate copolymer, wherein the mixture of ) and ) must be compatible with each other, (b) a layer (b) of at least one polyolefin or one olefin copolymer, (c) a layer (c) of at least one polyolefin or one olefin copolymer, and optionally typical auxiliary substances, as a second outer layer, and composites of said carrier film and an adhesive layer.

A multi-layer plastic film as a carrier film for a glue layer, comprising a layer sequence of (a) an outer layer (a) based on a mixture of ) 3-15 wt % of an extrudable glue and ) 85-97 wt % of at least one C.sub.2-C.sub.8 olefin-alkyl acrylate copolymer, C.sub.2-C.sub.8 olefin-methacrylic acid copolymer and/or C.sub.2-C.sub.8 alkyl methacrylate copolymer, wherein the mixture of ) and ) must be compatible with each other, (b) a layer (b) of at least one polyolefin or one olefin copolymer, (c) a layer (c) of at least one polyolefin or one olefin copolymer, and optionally typical auxiliary substances, as a second outer layer, and composites of said carrier film and an adhesive layer.