The invention provides an adhesive composition containing an adhesive component (S) and a release component (H) formed of a polyorganosiloxane having a complex viscosity of 3,400 (Pa.Math.S) or higher.

A complementary-material element configured to be attachable to a base plate of an ostomy appliance and comprising a release layer, the element comprising a release layer comprises a neutralizing component configured to be releasable from the complementary-material element in response to subjection of the complementary-material element to moisture. The complementary-material element comprises a first surface and a second surface, wherein the first surface is provided with a first cover layer.

Disclosed is a preparation method for a copper clad laminate comprising: (1) dissolving a polymer in an organic solvent, heating and stirring to obtain a pre-impregnation liquid; (2) impregnating a liquid crystal polymer cloth in the pre-impregnation liquid, and drying to obtain a liquid crystal polymer impregnated cloth; and (3) laminating the liquid crystal polymer impregnated cloth and a copper foil to prepare the copper clad laminate, wherein the polymer in step (1) is at least one selected from the group consisting of fully aromatic polyesteramide, epoxy resin, and polyimide; and the liquid crystal polymer cloth in step (2) is prepared from a liquid crystal polymer having a melting point greater than 280° C., a dielectric constant less than 3.2, and a dielectric loss tangent angle less than 0.0025. The preparation method for the copper clad laminate has a simple preparation process and a low manufacturing cost.

A fabrication method of a hexagonal boron nitride (h-BN)-based thermally-conductive composite film includes the following steps: S1. attaching an adhesive layer to an h-BN film carried on a carrier film, and separating the h-BN film from the carrier film to obtain a film in which an adhesive layer side is defined as a side A and an h-BN film side is defined as a side B; S2. attaching an adhesive layer to the side B of the film obtained in S1; S3. pasting a high-power graphite film to the side B of a film obtained in S2; S4. attaching an adhesive layer to the side B of a film obtained in S3; and S5. shaping a film obtained in S4 according to a required size. The present fabrication method is conducive to improving the production efficiency or yield rate of a thermally-conductive film product and the product quality.

A method to treat the copper surface to manufacture the metallic assembly with the polymer and copper to have excellent bonding strength is disclosed. The present method is for treating the surface of copper for the bonded coupling of the mixture of polymer and copper by providing a method to treat the surface of copper, with

(a) an etching step with electric etching of the surface of copper,
(b) the first anodizing stage to anodize the surface of copper, and
(c) the second anodizing stage to anodize the above is firstly anodized, after an ultrasonic treatment of the secondly anodized copper, the copper is oxidized again.

For a flexible, optically clear display stack, an adhesive, a system, and a method are provided. The adhesive is formed of polymer chains, at least a portion of which are cross-linked, a non-volatile diluent having a volume % in the range of between about 40 and 95, and is characterized with a low shear modulus of less than 10 kPa. The system is formed by at least first and second optically clear thin films with the adhesive disposed between the first and second thin films. The method includes the steps to form the system.

A method of manufacturing a metal-clad laminate and uses of the same are provided. The method comprises the following steps: (a) impregnating a reinforcement material with a first fluoropolymer solution, and drying the impregnated reinforcement material under a first temperature to obtain a first prepreg; (b) impregnating the first prepreg with a second fluoropolymer solution, and drying the impregnated first prepreg under a second temperature to obtain a second prepreg; and (c) laminating the second prepreg and a metal-clad to obtain a metal-clad laminate, wherein the first fluoropolymer solution has a first fluoropolymer, the second fluoropolymer solution has a second fluoropolymer, and the first fluoropolymer and the second fluoropolymer are different.

A graphic sheet is provided that can be affixed with sufficient adhesive force onto wallpaper, a poster, or other substrate having comparatively low strength, and can be easily renewed without damaging the substrate, which is the underlying layer. A graphic sheet of an embodiment of the present disclosure includes: a base film layer having a first surface and a second surface situated on an opposite side of the first surface; and a tacky acrylic foam layer disposed on or above the second surface of the base film layer. The acrylic foam layer contains an acrylic polymer having 20 mass % or more of a unit derived from ethyl acrylate.

An electromagnetic wave shielding sheet according to the disclosure is configured by a protection layer, a metal layer, and a conductive adhesive layer. The metal layer has a plurality of openings, and an aperture ratio of the opening is 0.1%-20%. In addition, a tensile breaking strength of the electromagnetic wave shielding sheet is 10 N/20 mm-80 N/20 mm.

A method for producing a water-tight, water-vapour-permeable segment, having a three-dimensional contour, for a shoe shaft, an item of clothing or a rucksack or for producing a shoe shaft, an item of clothing or a rucksack, the segment being free of connection points in its surface, and the method for producing the segment being a thermoforming process in which the two-dimensional flat structure obtained is completely laminated in its entirety, the segment being free of connection points in its surface. Also, a water-tight, water-vapour-permeable segment of a three-dimensional functional laminate for introduction into a shoe or shoe shaft, an item of clothing or a rucksack, the segment being dimensionally stable under its own weight, of a single piece and free of connection points in its surface.