The present disclosure provides a product for preventing the deterioration of an adhesive layer and a method for manufacturing the product. The product comprises a first product housing, a second product housing, an adhesive layer, and a protective layer. The second product housing is opposite to the first product housing. A gap exists between the second product housing and the first product housing. The adhesive layer is disposed in the gap between the first product housing and the second product housing, adhering to the first product housing and the second product housing. The protective layer is disposed on the adhesive layer. The protective layer is disposed in the gap, covering the outer surface of the adhesive layer. The protective layer bonds and cross-links to the adhesive layer chemically.

Core-sheath filaments comprising a non-tacky sheath, the non-tacky sheath exhibiting a melt flow index of less than 15 grams per 10 minutes and an adhesive core, the adhesive core comprising 10 wt.% to 99 wt.% of a polymer and a phenolic resin, where the polymer comprises an isoprene moiety, the phenolic resin comprises an alkyl-substituted phenol, and the phenolic resin is substantially free of halogens. Cured adhesive composition comprising the disclosed core-sheath filaments and methods of making such core-sheath filaments.

The present application provides a pressure-sensitive adhesive layer comprising at least first and second regions having different physical properties, wherein the difference in physical properties, such as an elastic modulus or creep strain rate is maintained relatively large for each region, and the difference in physical properties, such as a peel force or recovery rate is maintained relatively small for each region.

A self-adhering roofing membrane may include a polymeric membrane. The roofing membrane may include a first adhesive layer disposed on a major surface of the polymeric membrane. The first adhesive layer may include one or both of a hot melt adhesive and a butyl rubber-based adhesive. The roofing membrane may include a UV curable adhesive layer disposed on the first adhesive layer. The UV curable adhesive layer may have a thickness of less than about 4 mils.

The present invention relates to an adhesive film including a photothermal conversion layer including a light absorber and a thermally decomposable resin; and an adhesive layer, in which the thermally decomposable resin has a —COOH or —OH functional group and includes two kinds of acrylic resins having different weight average molecular weights, and an adhesive substrate including the adhesive film and a substrate to be processed. In the adhesive film and the adhesive substrate according to the present invention, it is possible to simplify a processing process of the substrate and reduce costs and time, and prevent damage to a substrate and a circuit or an element formed on the substrate.

A mask material for plasma dicing, which is used in a plasma step, whose surface roughness Rz at the surface side that does not touch with an adherend is from 0.1 μm to 1.5 μm; a mask-integrated surface protective tape; and a method of producing a semiconductor chip.

A friction film for increasing friction between two workpieces includes a deformable carrier material having a porous structure and friction-increasing particles on at least one side of the carrier material. The carrier material may be a polyethylene film or a liquifiable adhesive, and the friction-increasing particles may be titanium boride particles and/or diamond particles.

Provided is a PSA sheet having a PSA layer. The PSA layer has a multilayer structure comprising a layer A forming one face of the PSA layer and a layer B placed on the backside of the layer A. The layer B is a photo-crosslinkable PSA layer comprising a photo-crosslinkable polymer.

The present disclosure relates to a back grinding tape including a polymer resin layer including a urethane (meth)acrylate resin containing 10 to 40 wt % of a repeating unit derived from a (meth)acrylate monomer or oligomer having a glass transition temperature of 0° C. or higher, wherein the polymer resin layer has a glass transition temperature of −30° C. to 0° C. The present disclosure also relates to a method of grinding a wafer using the back grinding tape.

Disclosed are a double-sided adhesive film for bonding heterogeneous substrates, a laminated film, and a display device. The double-sided adhesive film for bonding heterogeneous substrates comprises: a first adhesive layer; and second adhesive layer which is disposed on the first adhesive layer and has a different adhesive force from that of the first adhesive layer to the same substrate.