Abstract:
A pressure-sensitive adhesive tape includes a pressure-sensitive adhesive layer containing a pressure-sensitive adhesive composition, a bubble, and a hollow inorganic fine particle. When a pinhole region is present in the pressure-sensitive adhesive layer where the light that has been radiated onto one surface of the pressure-sensitive adhesive layer is transmitted through the pressure-sensitive adhesive layer up to the other surface thereof, and when the pressure-sensitive adhesive tape is bisected with a line intersecting the longitudinal direction of the tape at right angles, 60% or more of large pinhole regions each having a diameter of 1.5 mm or more are present in either of the two portions. Thereby, when the pressure-sensitive adhesive tape is to be wound, the tape can be easily wound or it can be suppressed that the pressure-sensitive adhesive composition may be forced out.
Abstract:
Disclosed is a release liner having a multilayer structure of at least three layers including two surface layers and an intermediate layer, in which one of the two surface layers contains a high-density polyethylene, the other contains a low-density polyethylene, and the intermediate layer contains a low-density polyethylene alone as its resin component. Also disclosed is a pressure-sensitive adhesive sheet including the release liner and at least one pressure-sensitive adhesive layer, in which a release force X (N/mm) between the release liner and the pressure-sensitive adhesive layer and a rigidity Y of the release liner [(Young's modulus of the release liner)×(thickness)3] (N·mm) satisfy the following conditions: 0
Abstract:
The release liner includes a release layer constituted of at least one polyolefin resin, wherein the release layer has surface irregularities. The surface irregularities of the release layer may be constituted of recesses and protrusions which are irregularly different in shape and have been disposed in irregular arrangement. The release layer preferably has a surface roughness Ra of 1-3 μm. As the polyolefin resin constituting the release layer can be used at least one polyolefin resin selected from the group consisting of polyethylenes, polypropylene, polybutenes, poly(4-methyl-1-pentene), and copolymers of ethylene with one or more α-olefins having 3-10 carbon atoms.
Abstract:
The present invention provides an adhesive unit for emblem, which includes: a plurality of double-faced adhesive pieces each having a shape corresponding to a shape of a respective one of a plurality of emblem pieces; a first release film attached to a face of each of the plurality of double-faced adhesive pieces to be adhered to an emblem, so that a mutual positional relationship of the plurality of double-faced adhesive pieces is maintained; and a second release film attached to the other face of each of the plurality of double-faced adhesive pieces opposite to the face to be adhered to the emblem. The present invention also provides a method of producing the adhesive unit for emblem, a jig for adhering emblem, and an emblem for adhesion.
Abstract:
A pressure-sensitive adhesive label has a base having an information indication portion on its one surface thereof, and a pressure-sensitive adhesive layer formed on another surface of the base. After peeling a release liner, the label is stuck on an outer surface of a housing of the hard disk drive to reduce noise generated when the hard disk drive is driven. The release liner for coating the pressure-sensitive adhesive layer has an antistatic function and a cut line. The adhesive force of the adhesive layer is reduced by heating. The label has a surface density of not lower than 0.18 (kg/m2).
Abstract translation:压敏粘合剂标签具有在其一个表面上具有信息指示部分的基底和形成在基底的另一个表面上的压敏粘合剂层。 剥离剥离衬垫后,将标签卡在硬盘驱动器外壳的外表面上,以减少驱动硬盘驱动器时产生的噪音。 用于涂布压敏粘合剂层的剥离衬垫具有抗静电功能和切割线。 通过加热来降低粘合剂层的粘合力。 该标签的表面密度不低于0.18(kg / m 2)。
Abstract:
A joined body includes: an adherend; a primer layer provided on the adherend; and a pressure-sensitive adhesive layer provided on the primer layer. The primer layer contains, as an effective component, at least one of chlorinated polypropylene and chlorinated polyethylene and an amount of the effective component per unit area is 0.5 [mg/cm2] or less. The surface of the adherend may be formed of at least one of polypropylene (PP), polyvinyl chloride (PVC), and ethylene-propylene-diene rubber (EPDM).
Abstract:
Provided is double-faced adhesive tape joining apparatus that allows accurate joining of a double-faced adhesive tape on a tape joining surface of a workpiece in a curved or bent shape with no damage on a surface of a separator joined to the double-faced adhesive tape and no floating of the separator. Specifically, a hand-operable base includes a tape guide for guiding the double-faced adhesive tape successively supplied, and a joining head for pressing against the joining surface of the workpiece the double-faced adhesive tape supplied to a front end of the base. The base and the joining head are configured as to rotate relatively about a support axis toward a longitudinal tape direction.
Abstract:
Disclosed is a method for joining two strips, where the two strips each include a laminate of a release liner and a pressure-sensitive adhesive layer, and the release liner extends from the corresponding pressure-sensitive adhesive layer in a longitudinal end region of at least one of the two strips. The method includes butting cross-sections of longitudinal ends of the pressure-sensitive adhesive layers of the two strips to bond the two pressure-sensitive adhesive layers; and superposing end regions of the release liners of the two strips and fixing the release liners so that surfaces of the release liners in portions at least 1 mm long inward from the longitudinal ends are not in contact with surfaces of the pressure-sensitive adhesive layers. This method gives a continuous strip from which the release liner can be smoothly removed without “binding” even at the joint.
Abstract:
An acrylic pressure-sensitive adhesive tape according to an embodiment of the present invention has a single-layered pressure-sensitive adhesive layer containing an acrylic polymer (A), a (meth)acrylic polymer (B) whose mass average molecular weight (Mw) is such that 1000≦Mw