A film is described comprising a (meth)acrylic polymer and a polyvinyl acetal (e.g. butyral) resin. In some embodiments, the film has a glass transition temperature (i.e. Tg) ranging from 30 C. to 60 C. In some embodiments, the film has a gel content of at least 20% or greater. In some embodiments, the film has an elongation at break of at least 175%. The film typically comprises photoinitiator as a result of the method by which the film was made. The film may be a monolithic film or a layer of a multilayer film.

Provided is a multi-layered anisotropic conductive adhesive including an upper conductive adhesive layer, a conductive fabric layer with two sides and a lower conductive adhesive layer, wherein one side of the conductive fabric layer is plated with metal. In the application of a flexible printed circuit, reinforced parts, formed by laminating multi-layered anisotropic conductive adhesive with steel or polyimide-type stiffener, can effectively prevent the deformation of installed parts due to warping, and ensure the good hole filling, good direct grounding effect, and good shielding performance Therefore, the multi-layered anisotropic conductive adhesive has good electrical properties, good adhesive strength, better tin soldering, reliability and flame resistant. Also provided is a method of producing the multi-layered anisotropic conductive adhesive.

An adhesive composition is provided which exhibits not only adhesiveness to a polyimide film or copper foil, but also high adhesiveness to gold-plated copper foil, and is also superior in heat resistance such as soldering heat resistance. The adhesive composition comprises a solvent-soluble polyamide resin (A) which is solid at 25 C., an epoxy resin (B), and an imidazole compound (C) having an alkoxysilyl group, wherein the mass ratio (A)/(B) of the component (A) to the component (B) is 99/1-50/50, and the content of the component (C) is 0.3-5 parts by mass with respect to 100 parts by mass of the total of the component (A) and the component (B).

A method of producing a laminate comprising a heat treatment step under a temperature condition of 80-140 C. for 5-120 minutes, wherein the laminate satisfies the following requirements: (1) an adhesive layer (I) with 97-70% by weight of a propylene copolymer (A) and 3-30% by weight of a copolymer (B) having a structural unit derived from butane (100% by weight); (2) the copolymer (A) has a melting point within a specific range and includes less than 1 mol % of structural unit from butane; (3) the copolymer (B) has a melting point within a specific range and includes 1 mol % or more of structural unit from butane; (4) the adhesive layer (I) has a polymer (C) with a structural unit from at least one graft monomer selected unsaturated carboxylic acids and derivatives thereof, and, (5) a substrate layer (II) includes a polyester resin.

A tempered glass protective film for ultrasonic fingerprint recognition function is configured to solve the problem that the echo energy received by the ultrasonic fingerprint sensor is low and the clear fingerprint image cannot be obtained after the tempered glass protective film is used on the electronic device. The tempered glass protective film includes a glass layer, a first glue layer and a second glue layer arranged in a top-to-bottom sequence, in which the first glue layer is an OCA glue layer, and the second glue layer is a silicone layer or a PU glue layer. The thickness of the OCA glue layer gradually decreases from the edge to the center, and correspondingly, the thickness of the tempered glass protective film gradually decreases from the edge to the center. The tempered glass protective film has better impact resistance while improving the echo energy received by the ultrasonic fingerprint sensor.

Provided is a laminate sheet in which a first sheet, a PSA layer and a second sheet are laminated in this order. Of the first and second sheets, at least one is a release liner having a release face on the side facing the PSA layer. The PSA layer has a thickness of 200 m or greater. The first sheet has a tensile modulus of 1000 MPa or greater and the second sheet has a tensile modulus of 500 MPa or less.

The present disclosure provides adhesive articles that can be removed from surfaces without damage by having reduced or eliminated contribution of a core backing to peel force generated by the adhesive during removal. In some instances, this can be accomplished by a core that loses structural integrity in a direction normal to a plane defined by a major surface. In other instances, the contribution is reduced by compromising the interface between the core and a peelable adhesive layer.

Floor coverings having a greige good, an adhesive layer, and a secondary backing material. The greige good has a primary backing component having adjoined first and second portions, and a plurality of fibers. The secondary backing material has an attached portion and a first exposable portion, with the attached portion adhered to the first portion of the primary backing component by contact with the adhesive layer. The second portion of the primary backing component is unattached to the first exposable portion of the secondary backing material, and the first exposable portion defines a portion of the first end edge of the floor covering. The second portion of the primary backing component is selectively moveable relative to the first portion to a position in which at least a portion of the second portion of the primary backing component does not overlie the first exposable portion of the secondary backing material.

The invention provides for an optically clear adhesive (OCA), a display panel, and a method of manufacturing the OCA. The OCA includes an OCA layer and a polyurethane resin layer which are disposed in a stack. The polyurethane resin layer mixes with the OCA layer. The method includes a plurality of steps of: providing a lower release film, manufacturing the OCA layer, and manufacturing the polyurethane resin layer. The display panel includes a backplate layer, a display layer, a touch control layer, a polarizer, and a flexible plate which are sequentially disposed on each other. The OCA is disposed between the backplate layer and the display layer and/or is disposed between the display layer and the touch control layer and/or is disposed between the touch control layer and the polarizer and/or is disposed between the polarizer and the flexible plate.

Aqueous-based release coating compositions are disclosed. The disclosed aqueous-based release coating compositions are particularly suitable for use with pressure sensitive adhesives. In some embodiments, the aqueous-basedrelease coating compositions include (A) a vinyl-based emulsion copolymer comprising a copolymerizable acid monomer, (B) asilicone-based emulsion comprising a mixture of amine-, polyol-functional siloxane and epoxy-, glycol-functional siloxane, and (C) apolymeric dispersant comprising an acid functional group. In some embodiments, the weight ratio of silicone-based emulsion (B) to polymeric dispersant (C) in the aqueous-based release coating compositions is from 2:1 to 3:1. The disclosed release coating compositions are suitable for use in, inter alia, tape applications.