A membrane composite comprising a polymeric membrane panel, an adhesive layer, and a release member, where the adhesive layer is a pressure-sensitive adhesive that is at least partially cured, and where the adhesive layer has a thickness of at least 102 m.

A method for temporarily protecting a surface uses a pressure-sensitive adhesive film and reduces unwinding force when the film is unwound. The pressure-sensitive adhesive film that comprises a backing coated on one side with a rubber adhesive containing at least 5 wt % of tackifying resin, and on the other side with a silicone epoxy varnish.

A protective film is capable of protecting and preserving an optical sheet surface, particularly the back surface of a prism sheet, independent of the shape and composition thereof in a range of adhesive forces appropriate for various adherends. A layered film having an adhesive layer having a styrene-based elastomer as the main component thereof on at least one surface of a base material layer, the layered film characterized in that the loss tangent tan and the shear storage modulus G of the elastomer at 1 Hz in a temperature range of 30-60 C. are within specific ranges.

A laminate is provided that has an adhesive layer including a composition containing an acrylic block copolymer, the adhesive layer being so designed that it has a small change in adhesive force over time. The laminate includes an adhesive layer (B) including an acrylic adhesive composition (Z), and a substrate layer (A) including a polyolefin resin (a), the acrylic adhesive composition (Z) including an acrylic block copolymer (I) having one or more polymer blocks (b1) containing an acrylic acid ester-derived structural unit, and one or more polymer blocks (b2) containing a methacrylic acid ester-derived structural unit, the polymer block (b1) containing a structural unit derived from an acrylic acid ester (b1-1) represented by the general formula (1) CH.sub.2?CHCOOR.sup.1 (wherein R.sup.1 denotes a C7-C12 organic group).

An adhesive article that remains securely bonded to a substrate until a stimulus is applied. The article may be embodied as an adhesive tape, a bandage, or as other articles. The stimulus may be a change in temperature or application of a reduction that causes a structure within the article to break, creak, or otherwise disrupt to expose the adhesive to a solvent, such as via a difference in Coefficient of Thermal Expansion (CTE) or by exposing the article to a glass transition temperature.

An acrylic emulsion pressure sensitive adhesive composition is provided. The acrylic emulsion pressure sensitive adhesive composition, due to pH-dependent properties, exhibits stable adhesion when attached to an adherend, but when it needs to be removed, it can be easily removed without residue using an alkaline solution. Thus, if the acrylic emulsion pressure sensitive adhesive composition is used as a pressure sensitive adhesive for a label of a plastic packaging article, the label can be easily removed during a recycling process, thus improving recycling efficiency.

A screen splicing structure is provided. The screen splicing structure includes a substrate layer, a middle adhesive layer, and a surface layer. The substrate layer includes a first substrate and a second substrate. The second substrate is spliced with the first substrate, and a seam is formed at a splicing place. The surface layer and the middle adhesive layer are stacked. The surface layer covers the seam by bonding the middle adhesive layer and the substrate layer. The peeling strength of the surface layer and the substrate layer is greater than or equal to 1,000 gf/inch. A method for forming the screen splicing structure is also provided.

Provided is a method for producing a glass unit. The method comprises a step (A) of obtaining a glass plate comprising a glass substrate and a Low-E layer placed on the glass substrate; a step (B) of applying a protective sheet to the Low-E layer surface of the glass plate; an optional step (C) of subjecting the glass plate to at least one process selected from the group consisting of transportation, storage, processing, washing and handling; a step (D) of removing the protective sheet from the glass plate; and a step (E) of assembling a glass unit using the glass plate. The protective sheet comprises a waterproof layer, and a PSA layer provided to at least one face of the waterproof layer. The PSA layer has a surface hardness of 0.5 MPa or less.

The invention relates to an adhesive tape having a carrier composed of a film with an adhesive applied on at least one side thereof the film being a monoaxially oriented film consisting to an extent of at least 95 wt %, preferably 99 wt %, more preferably 100 wt %, of propylene polymer composition having various phases and comprising the following components: i) 70 to 99 wt %, preferably 85 to 95 wt %, based on the total weight of components i) and ii), of a propylene polymer matrix comprising a propylene homopolymer and more preferably a preferably random propylene copolymer including a comonomer that is selected from ethylene and C.sub.4 to C.sub.10 -olefins, where the propylene polymer matrix has a comonomer content of not more than 15 wt %; 1 to 30 wt %, preferably 5 to 15 wt %, based on the total weight of components i) and ii), of a polypropylene having a modulus of elasticity of less than 150 MPa and a molecular weight M.sub.w of between 40 000 to 150 000 g/mol.

The invention relates to an adhesive tape comprising a backing consisting of a film, to at least one side of which an adhesive mass is applied, wherein the film is a monoaxially stretched film, at least 95 wt. % of which, preferably at least 99 wt. % of which, particularly preferably 100 wt. % of which consists of a propylene polymer composition having different phases and comprising the following components: i) 80 to 99 wt. %, preferably 93 to 96 wt. %, relative to the total weight of components i) and ii), of a propylene polymer matrix which comprises a propylene homopolymer and particularly preferably a propylene copolymer, preferably a propylene random copolymer, which has a comonomer selected from ethylene or C.sub.4- to C.sub.10--olefins, the propylene polymer matrix having a comonomer content of not more than 15 wt. %, ii) 1 to 20 wt. %, preferably 4 to 7 wt. %, relative to the total weight of components i) and ii), of an elastomer in the form of an ethylene-propylene copolymer having an ethylene content of 50 to 90 wt. %.