Provided are solvent cement formulations comprising some or all of tetrahydrofuran, cyclohexanone, methyl ethyl ketone, acetone, a thermoplastic resin, silica, and, a solvent soluble acrylic copolymer associative thickener. The disclosed formulations contain a reduced complement of volatile organic compounds (VOCs) relative to conventional cement formulations, yet are capable of meeting the requirements for regular-, medium-, and heavy-duty applications. The use of specialized associative thickener components confers a required degree of viscosity while enabling a reduction in the concentration of VOCs, such as tetrahydrofuran.

A modified collagen fiber preparation method and application are provided. The modified collagen fiber is prepared by modifying a collagen fiber with a plant tannin; and a method of the preparation includes: mixing the plant tannin with the collagen fiber in a liquid environment with a pH of 5 to 8 to allow a reaction, and washing and drying a product. In the present disclosure, a plant tannin rich in phenolic hydroxyl can be combined with a collagen fiber in various ways such as multi-point hydrogen bonding and hydrophobic bonding, such that the plant tannin structure is introduced into a natural multi-layer micro/nano-structure of the collagen fiber; and due to a large number of phenolic hydroxyl structures in the plant tannin, the collagen fiber introduced with the plant tannin structure shows improved compatibility with a waterborne resin, and can produce strong hydrogen bonding with polar groups in the waterborne resin.

A resin composition that is laser-weldable under broad conditions of laser irradiation. A formed article formed of the resin composition. A kit for Galvano-scanning laser welding with a transmissive resin composition and a light-absorptive resin composition. A car-borne camera component formed of the resin composition. A car-borne camera module with the car-borne camera component. A UV exposed article formed of the resin composition. A method for manufacturing a formed article by welding a transmissive resin member and an absorptive resin member by Galvano-scanning laser welding. The resin composition for Galvano-scanning laser welding, contains 0.1 to 20 parts by mass of a reactive compound, per 100 parts by mass of a thermoplastic resin.

A polymer multilayer includes two or more laminated layers of ultra-drawn, ultra-high molecular weight polyethylene or high density polyethylene. A transparent laminated structure may include such a polymer multilayer disposed between a pair of transparent substrates. The polymer multilayer may be configured to induce a compressive stress in a near surface region of each transparent substrate, which may improve the toughness and fracture resistance of the laminated structure. A photothermal dye may be incorporated into the polymer matrix and the compressive stresses may be achieved using photothermal actuation of the dye-containing polyethylene layers.

The polyurethane material is prepared from a polyol, butanediol, and an isocyanate. The protective cover is adapted to be attached along at least a part of a longitudinal edge of the wind turbine blade by adhesion of an inside of the protective cover to a surface of the longitudinal edge of the wind turbine blade. The protective cover is elongated in a longitudinal direction and has an at least substantially U-formed cross-section. The protective cover includes a central cover section extending in the longitudinal direction and two peripheral cover sections extending in the longitudinal direction at either side of the central cover section, respectively. The central cover section has a minimum thickness of at least 1 millimetre, and each peripheral cover section has a thickness decreasing from a maximum thickness of at least 1 millimetre to a minimum thickness of less than 1/2 millimetre.

Provided is a resin sheet for molding, which is provided with a base material layer that contains a polycarbonate resin (a1), a high hardness resin layer that contains a high hardness resin, and a hard coat anti-glare layer, and which is configured such that: the high hardness resin layer is arranged between the base material layer and the hard coat anti-glare layer; the glass transition points of the polycarbonate resin (a1) and the high hardness resin satisfy the relational expression −10° C.≤(glass transition point of high hardness resin)−(glass transition point of polycarbonate resin (a1))≤40° C.; and two protective films are superposed and bonded onto both surfaces of the resin sheet.

An electronic device is provided. The electronic device includes a housing and a sensor module disposed in at least a portion of the housing. The sensor module includes a fingerprint recognition sensor, a protective layer covering the fingerprint recognition sensor, an adhesive member placed on the protective layer, and a ceramic layer placed on the adhesive member, wherein the edge of the ceramic layer, the edge of the adhesive member, and the edge of a part of the protective layer include machined surfaces. Other embodiments are also possible.

Provided is a workpiece bonding method that makes it possible to achieve a joining state with a high strength and to obtain a good repeatability of the joining state.

A workpiece bonding method according to the present invention is a workpiece bonding method for bonding two workpieces to each other, each of the two workpieces being composed of a material selected from the group consisting of synthetic resin, glass, silicon wafer, crystal and sapphire, the workpiece bonding method including: a surface activation step of activating a bonded surface of at least one of the workpieces; and a laminating step of laminating the two workpieces such that respective bonded surfaces contact with each other, and a pretreatment step of removing moisture from the bonded surface of the workpiece that is to be subjected to the surface activation step is performed before the surface activation step is performed.

Mechanical strength of a composite material is enhanced by a simple process. In a composite material comprising a resin or a rubber and an oxide glass, the resin or the rubber is dispersed in the oxide glass, or the oxide glass is dispersed in the resin or the rubber. The composite material has a function that the oxide glass is softened and fluidized by electromagnetic waves.

Mechanical strength of a composite material is enhanced by a simple process. In a composite material comprising a resin or a rubber and an oxide glass, the resin or the rubber is dispersed in the oxide glass, or the oxide glass is dispersed in the resin or the rubber. The composite material has a function that the oxide glass is softened and fluidized by electromagnetic waves.