Abstract:
Provided is a viscoelastic article which exerts different properties between one surface and the other surface thereof, which has a transparent appearance, and which less causes staining of objects to which the viscoelastic article is adopted. The viscoelastic article is an article having a multilayer structure including a polymer layer, and a monomer-absorptive layer capable of absorbing at least one of monomer component(s) constituting the polymer, in which the polymer layer is a polymer layer containing an elastomer unevenly distributed and enriched at an interface, or in the vicinity thereof, opposite to the monomer-absorptive layer. The vicinity of the interface opposite to the monomer-absorptive layer is preferably a region ranging from the interface opposite to the other interface with the monomer-absorptive layer and occupying, in a thickness direction, 50% or less of the total thickness.
Abstract:
A circuit connecting material which is situated between mutually opposing circuit electrodes and, upon pressing the mutually opposing circuit electrodes, electrically connects the electrodes in the pressing direction, the circuit connecting material having a laminated construction comprising an anisotropic conductive adhesive layer A with conductive particles 21 dispersed therein and an insulating adhesive layer B, wherein the adhesive force of the insulating adhesive layer B for glass substrates is greater than the adhesive force of the anisotropic conductive adhesive layer A for glass substrates.
Abstract:
An elastic strip with self-adhesion effect of double viscosity has self-adhesive first, second elastic layers and at least a release paper. The first and second elastic layers are molded by mixing thermo plastic rubber, resin and bonding agent to realize self-adhesion and scalability of the entire plate structure. The first and second adhesion surfaces formed at one side of the first and second elastic layers not yet mated are provided with different adhesive strength. For two bonding surfaces formed at first and second elastic layers, the adhesive strength is larger than that of the first and second adhesion surfaces. The release paper is adhered onto either the first or second adhesion surface, and can be easily peeled off. Due to self-adhesion without debonding and residual gelatine, the elastic strip can be widely applied to multi-functional adhesive products resisting overturn, sliding, shock and theft, thus improving the living quality and convenience.
Abstract:
The installation system and method for installing an architectural covering material to a substrate surface utilizes an adhesive mat having layers of adhesive and release layers arranged to allow the covering material to be initially positioned, and later repositioned to be permanently set. The adhesive mat includes a planar carrier member, one or more adhesive layers on at least one planar side of the planar carrier member, and at least one release layer of material removably covering the one or more adhesive layers. In one form, the adhesive mat includes a carrier sheet, first and second adhesive layers on opposing planar sides of the carrier sheet, and first and second release layers of material removably covering the two adhesive layers.
Abstract:
The present invention provides a dicing die-bonding film including: a dicing film having a pressure-sensitive adhesive layer provided on a base material; and a die-bonding film provided on the pressure-sensitive adhesive layer, in which the pressure-sensitive adhesive layer of the dicing film is a pressure-sensitive adhesive layer which contains a gas-generating agent in a ratio of 10 to 200 parts by weight based on 100 parts by weight of a base polymer, the base polymer is an acrylic polymer A composed of a monomer composition containing 50% by weight or more of an acrylic acid ester represented by CH2═CHCOOR (in which R is an alkyl group having 6 to 10 carbon atoms) and 1% by weight to 30% by weight of a hydroxyl group-containing monomer and containing no carboxyl group-containing monomer, and the die-bonding film is formed of a die-adhering layer.
Abstract:
A heat-peelable pressure-sensitive adhesive sheet comprises: a base material; and a thermo-expandable pressure-sensitive adhesive layer containing thermo-expandable microspheres, the thermo-expandable pressure-sensitive adhesive layer having a surface to be adhered to an adherend, wherein the surface of the thermo-expandable pressure-sensitive adhesive layer before subjecting to heating has a centerline average roughness of greater than 0.4 μm, and has a convex portion resulting from the thermo-expandable microspheres.
Abstract:
A dicing die-bonding film having a pressure-sensitive adhesive layer on a base and a die-bonding film on the pressure-sensitive adhesive layer, the pressure-sensitive adhesive layer comprising an acrylic polymer comprising an acrylic ester A represented by CH2═CHCOOR1 (where R1 is an alkyl group having 6-10 carbon atoms), an acrylic ester B represented by CH2═CHCOOR2 (where R2 is an alkyl group having 11 carbon atoms or more), a hydroxyl group-containing monomer, and an isocyanate compound having a radical reactive carbon-carbon double bond, where the ratios of components are 40-10 mol % of the acrylic ester B to 60-90 mol % of the acrylic ester A, 10-30 mol % hydroxyl group-containing monomer to 100 mol % of the total of the acrylic ester A and the acrylic ester B, 70-90 mol % isocyanate compound to 100 mol % of the hydroxyl group-containing monomer, and the die-bonding film is formed from an epoxy resin.
Abstract:
The invention relates to a dicing die-bonding film having a pressure-sensitive adhesive layer and a die bonding adhesive layer being sequentially laminated on a supporting substrate, wherein said pressure-sensitive adhesive layer has a thickness of 10 to 80 μm, and has a storage elastic modulus at 23° C. of 1×104 to 1×1010 Pa.
Abstract:
Disclosed is a heat-peelable pressure-sensitive adhesive sheet that can prevent the deformation of a pressure-sensitive adhesive layer caused by pressurization, further reduce chipping in grinding and cutting processes, be easily peeled off from a processed article after processing, and can be easily applied to an adhered at ordinary temperature. The heat-peelable pressure-sensitive adhesive sheet includes a substrate, and a heat-expandable pressure-sensitive adhesive layer arranged on or above at least one side of the substrate, the heat-expandable pressure-sensitive adhesive layer containing a foaming agent and having a shear modulus (23° C.) in an unfoamed state of 7×106 Pa or more. The adhesive sheet further includes a pressure-sensitive adhesive layer being arranged on or above heat-expandable pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer has a shear modulus (23° C.) of less than 7×106 Pa and a thickness of 0.01 to 10 μm.
Abstract:
Adhesive systems may be fabricated to include first and second solid adhesion structures. The first adhesion structure may require an applied normal preload force to achieve adhesion to a surface. The second solid adhesion structure may be separate from but joined to the first adhesion structure such that both adhesion structures are jointly adherable to the surface upon application of the normal preload force.