Provided is a sticky cleaner whose adhesive face can be easily renewed and whish is less susceptible to roll-loosening. The sticky cleaner provided by this invention comprises a PSA tape having an adhesive face on the first face of a substrate. The PSA tape forms a PSA tape roll wound with the adhesive face on the outside. On the first face of the substrate, the PSA tape comprises a first layer formed of a PSA and a second layer formed of an acrylic viscoelastic material. The adhesive face comprises first sections where the first layer is exposed and second sections where the second layer is exposed. The second sections protrude further out of the PSA tape roll relative to the first sections. The PSA tape roll shows an unwinding force F.sub.0 at 0 C. and an unwinding force F.sub.30 at 30 C.

A method of making an adhesive backed web, wherein the adhesive layer of such web has partially embedded filaments projecting therefrom. The filaments may comprise a thermoplastic material or a hot melt adhesive. The filaments are contacted to a major surface of a liner material then pressed partially thereinto. An adhesive layer, as from an adhesive backed film, is then laminated to the filament-containing liner, allowing the adhesive layer to pick up the filaments.

A string of coiled tubing for an electrical submersible well pump has insulated power conductors encased in an elastomeric jacket within the coiled tubing. A textured interface between the jacket and the inner side wall of the coiled tubing enhances frictional engagement between the jacket and the coiled tubing. The textured interface may be formed on the inner side wall of the coiled tubing and consist of a roughened or knurled surface. A tape may be wrapped helically around the jacket, the tape having an outer side with a textured surface in contact with the inner side wall of the coiled tubing. The textured interface may extend continuously for the length of the coiled tubing.

A pressure sensitive adhesive sheet includes a transparent sheet base material, a first pressure sensitive adhesive layer, and a second pressure sensitive adhesive layer, and a pressure sensitive adhesive strength by a pressure of 1 N/cm.sup.2 or less is 0 N/25 mm. The first pressure sensitive adhesive layer includes a first silicone-based pressure sensitive adhesive and the second pressure sensitive adhesive layer has a second silicone-based pressure sensitive adhesive and a plurality of protrusions formed of a plurality of fine particles. A first sheet surface is a surface to adhere to an adherend. An average particle diameter of the fine particles is 2 m or more and 15 m or less and a coverage ratio of the first sheet surface with the fine particles is 10% or more and 70% or less.

The present application relates to the field of screen protective material, it provides a screen protector comprising: a laminate structure (1) made of plastic or glass; an adhesive or a silicon oil coated on one side of the laminate structure (1); a plurality of projections (2) of identical height arranged in a uniform on the same side of the laminate structure (1) as that having the projections (2). The present screen protector can prevent the appearance of Newton's Ring.

The present invention discloses an elastic anti-corrosion adhesive, an elastic anti-corrosion adhesive tape and a preparation method thereof, which belongs to the technical field of anti-corrosion adhesive tape materials, comprising: by weight, 5 to 8 parts of elastic rubber, 3 to 5 parts of high molecular weight polyisobutylene, 20 to 35 parts of medium molecular weight polyisobutylene, 5 to 10 parts of elastic fiber, 40 to 60 parts of inorganic powder and 1 to 5 parts of anti-aging agent. The elastic anti-corrosion adhesive provided by the present invention possesses excellent extensibility and resilience. The extensibility thereof allows it to be applied to irregular surfaces, forming a tight bond with the substrate surface, and reducing voids. And the resilience thereof gives the anti-corrosion adhesive self-tightening properties, promoting its penetration into the microscopic surface of the substrate, effectively isolating air and moisture, thereby enhancing its corrosion resistance.

An object of the present invention is to provide an adhesive film that can be applied easily to an adherend having a three-dimensional shape. An adhesive film according to the present disclosure is an adhesive film having a three-dimensional molded shape and including: a base layer; an adhesive layer including a fine structure in a surface; and a liner layer covering the adhesive layer. The fine structure of the adhesive layer includes a plurality of convex parts. Each of the plurality of convex parts includes two or more parts joined to each other via an interface. A first part present in a top of the convex part includes a non-adhesive or weak adhesive material, and a second part present below the first part includes a strong adhesive material.

Provided is a PSA sheet capable of bringing about good air release properties in mobile electronic applications. The present invention provides a PSA sheet for mobile electronics. The PSA sheet comprises a substrate film and a PSA layer provided to at least one face of the substrate film. The PSA layer has a thickness of 20 m or less. The PSA sheet further comprises a coating layer that partially covers the PSA layer surface. The coating layer has a thickness less than 3 m.

Provided is a PSA sheet capable of showing high long-term adhesive strength and good air release properties between the PSA sheet and an adherend. This invention provides a PSA sheet comprising a substrate film and a PSA layer provided to at least one face of the substrate film. The PSA sheet comprises a coating layer partially covering the PSA layer surface, whereby the PSA layer surface has a coating layer-bearing area and a coating layer-free area. The coating layer-free area occupies 70% or more of the PSA layer surface. In a top view of the PSA layer surface, the coating layer-bearing area has a linearly extending part running from one edge to another edge of the PSA layer. The linearly extending part has a width in a range of 0.1 mm to 2 mm.

Methods of making adhesive articles providing air egress by supplying a route for the air to flow out from under the construction are described. One method includes providing a release liner comprising a moldable layer having a release surface and a back surface; applying a first pattern of a first non-adhesive material to a first portion of the release surface; applying a second pattern of a second non-adhesive material to a second portion of the release surface, wherein the second pattern partially overlaps the first pattern; embedding at least one of the first or second non-adhesive materials into the moldable layer; and transferring an adhesive layer having a front and back surface and end edges onto the release liner, wherein the front surface of the adhesive layer is adhered to the release surface of the release liner.