A method for producing an optical silicone assembly is disclosed. The method comprises the steps of: i) treating a surface of a substrate with an optically clear silicone adhesive composition; ii) placing the substrate obtained by step i) into a mold; iii-a) injecting an optically clear moldable silicone composition into the mold, and/or iii-b) overmolding the optically clear moldable silicone composition onto the substrate; and then iv) heating the optically clear moldable silicone composition to form the optical silicone assembly. The optical silicone assembly produced by the method of this disclosure is characterized by excellent adhesion of an optical silicone product to various types of substrates.

A two-component polyurethane composition containing at least 55% by weight of polybutadiene polyols based on the total amount of all polyols having an average molecular weight of at least 500 g/mol, and at least one latent hardener, where the ratio of the number of reactive groups in the latent hardener to the number of OH groups present is in the range from 0.02 to 0.4. The composition has a long open time, blister-free curing, a very low glass transition temperature, high elasticity and surprisingly high strength which is very constant over a wide temperature range. Furthermore, it has very good adhesion to metallic and nonmetallic substrates, causing barely any stress cracks on glassy thermoplastics.

A masking film includes an adhesion layer that includes at least one hydrogenated styrene block copolymer and an adhesive surface having a surface roughness (Sa) of greater than about 2.0 μm. An Adhesion Build Value of the masking film is less than about 2.0 after the adhesion layer has been attached to a textured polycarbonate substrate and heated to 85° C. for 30 minutes.

The present invention provides a curable composition, a pressure-sensitive adhesive, an adhesive tape, and an adhesive product. The present invention belongs to the technical field of acrylate pressure-sensitive adhesives. The pressure-sensitive adhesive formed of the curable composition of the present invention has good high-temperature and high-humidity repulsion resistance. The curable composition comprises: a monomer component, comprising at least two polymerizable monomers, wherein the polymerizable monomers comprise a non-tertiary alcohol (meth)acrylate monomer, and an acid-functional non-ester unsaturated monomer having at least one olefinic bond; a (meth)acrylate polymer tackifying resin having a specific molecular weight and a glass transition temperature; a non-(meth)acrylate polymer tackifying resin component, comprising at least two non-(meth)acrylate polymer tackifying resins, wherein at least a part of non-(meth)acrylate polymer tackifying resins has a softening point greater than or equal to 130° C.; a cross-linking agent component, comprising an isocyanate cross-linking agent and at least one non-isocyanate cross-linking agent.

A flexible protective film is provided and is used to protect a curved display. The flexible protective film includes a substrate layer (10) and a flexible layer (20) laminated on the substrate layer (10). The flexible layer (20) is formed after a liquid-phase flexible material is laminated on a surface of the substrate layer (10) through solidification. The flexible layer (20) of the flexible protective film is directly formed on the substrate layer (10) to reduce internal stress of the flexible protective film, thereby increasing an adhesive force of the flexible protective film.

A laminate including a laminated structure of a pressure-sensitive adhesive sheet, a reinforcing agent layer, and an adherend, the laminate being capable of expressing both of a high adhesive strength and high water resistance. The laminate shows an adhesive strength of 20 N/20 mm or more when the pressure-sensitive adhesive sheet is peeled from a laminated structural body where the adherend is a SUS plate, the laminate shows an adhesive strength of 20 N/20 mm or more when the pressure-sensitive adhesive sheet is peeled from a laminated structural body where the adherend is a polycarbonate plate, and the laminate shows an adhesive strength of 20 N/20 mm or more when the pressure-sensitive adhesive sheet is peeled from a laminated structural body where the adherend is an aluminum plate at 23° C. and 50% RH, and at a tensile rate of 300 mm/min and a peel angle of 180°.

A multilayer film and a decorative film, each of which is excellent in chipping resistance, exhibits favorable adhesive properties to a variety of resin materials, such as polypropylene and ABS, and a molded body provided with such a film. The multilayer film includes three layers of an impact absorption layer (a), a base material layer (b), and a pressure sensitive adhesive layer (c) disposed in this order, wherein a thermoplastic polymer composition constituting the impact absorption layer (a) is composed of at least one block copolymer containing a polymer block (X) containing a structural unit derived from an aromatic vinyl compound and a polymer block (Y) containing a structural unit derived from a conjugated diene compound, or a hydrogenated product thereof; and has a loss tangent (tan δ) at 11 Hz in a range of −50 to −20° C. of 3×10.sup.−2 or more.

The description relates to solvent free films and textiles that receive the solvent free films.

The description relates to solvent free films and textiles that receive the solvent free films.

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.