The invention relates to an adhesive composition, the preparation and use of said composition, and an article obtained by bonding using said composition. The adhesive composition comprises: a. an anionic aqueous polyurethane dispersion, which contains a polyurethane with enthalpy of fusion of at least 3 J/g, wherein the enthalpy of fusion is measured by DSC at 20° C.-100° C. of the first heating curve according to DIN 65467; and wherein said aqueous polyurethane dispersion has a hydroxyl content of 0.001% by weight to 0.085% by weight, relative to the total weight of the aqueous polyurethane dispersion; and b. an aqueous polyacrylate primary dispersion with a hydroxyl content of 0.5% by weight to 1.8% by weight, relative to the total weight of the aqueous polyacrylate primary dispersion; wherein the amount of the aqueous polyurethane dispersion is 30% by weight to 91% by weight, and the amount of the aqueous polyacrylate primary dispersion is 9% by weight to 70% by weight, the above weight percentages being relative to the total weight of the adhesive composition. The adhesive composition of the present invention has good high-temperature resistance.

A method to produce a panel unit, including providing a core having a first surface and a second surface opposite the first surface, applying a surface layer to the first surface of the core, the surface layer including a wood veneer layer and a first binder layer for adhering the wood veneer layer to the first surface of the core, applying a balancing layer to a second surface of the core, the balancing layer including an unimpregnated paper and a second binder layer for adhering the unimpregnated paper to the second surface of the core, applying pressure to the surface layer, the balancing layer, and the core to form a panel unit. The disclosure also relates to a panel.

Disclosed is a joined ceramic body comprising a first ceramic portion comprising a first ceramic, a second ceramic portion comprising a second ceramic, and a joining layer formed between the first ceramic portion and the second ceramic portion. The joining layer has a bond thickness of from 0.5 to 20 um and comprises silicon dioxide having a total impurity content of 20 ppm and less. A method of making the joined ceramic body and a joining material are also disclosed.

An image forming system includes a sheet processing apparatus, a heat presser, an image forming apparatus, and control circuitry. The sheet processing apparatus separates a two-ply sheet in which two sheets are overlaid and bonded together at a portion of the two-ply sheet, and sandwiches a sheet medium between the sheets of the two-ply sheet. The heat presser heats and presses the two-ply sheet. The control circuitry performs a first mode to cause the sheet processing apparatus to sandwich the sheet medium, on which an image has been formed by the image forming apparatus, between the two sheets of the two-ply sheet and cause the heat presser to laminate the two-ply sheet, and a second mode to cause the heat presser to laminate a sheet set that includes the sheet medium sandwiched between the two sheets of the two-ply sheet by a user.

The present invention is directed to an acoustical baffle that has use in vehicle interiors, such as an interior headliner. In particular, the baffle can provide improved acoustics while maintaining a desired airflow resistance and can be configured to provide for different sound attenuation characteristics at selected locations of the baffle construction.

The insulation adhesive film material is composed of a three-layer structure, its insulation polymer composite is supported by a thin film material, and a surface of the insulation polymer composite is covered with a layer of protective film. A release force of a support film is 25-60 μN/mm, and a release force of the protective film is 2-60 μN/mm. A thickness of the insulation polymer composite is 1-300 μm. The insulation adhesive film material is prepared as follows: after a high molecular polymer, an inorganic filler, a high molecular polymer curing agent, a molding auxiliary agent, and a solvent are mixed, dispersion technologies such as ball milling, sand milling, ultrasound are conducted to prepare an electronic paste of the insulation polymer composite, and the electronic paste is then applied to a surface of a support film material, and bonded with the protective film to form the insulation adhesive film material.

One aspect of the present invention provides a composite sheet which comprises a nitride sintered body having a porous structure and a semi-cured product of a thermosetting resin composition impregnated into the nitride sintered body, the line roughness Rz specified by JIS B 0601:2013 of at least one main surface being 10 μm or less.

In a ceramic/copper/graphene assembly, a ceramic member, a copper member formed of copper or a copper alloy, and a graphene-containing carbonaceous member containing a graphene aggregate are joined. At a joining interface between the copper member and the graphene-containing carbonaceous member, an active metal carbide layer containing a carbide of one or more kinds of active metals selected from Ti, Zr, Nb, and Hf is formed on a side of the graphene-containing carbonaceous member, and a Mg solid solution layer having Mg dissolved in a matrix phase of Cu is formed between the active metal carbide layer and the copper member.

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 method for fabricating wetsuit garment including wetsuits, boots and gloves for water sports uses, comprising preparation of at least a substantially elastic joining member made of hot melt adhesive, and joining at least two interconnected panels of rubber foam or sponge by the substantially elastic joining member to cover and seal the seam between the two interconnected panels for firmly bonding the two interconnected panels for making a strong, elastic and flexible wetsuit garment.