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.

A disposable wearable article includes an elastic film stretchable structure in which an elastic film is laminated between a first sheet layer and a second sheet layer. The first sheet layer and the second sheet layer are bonded to each other through holes passing through the elastic film with many bonded portions arranged at intervals. A region having the elastic film stretchable structure includes a stretchable region that elastically stretches and contracts together with the elastic film. The stretchable region includes a plurality of elastic films disposed so as to have an overlapping portion. The number of laminated layers of the elastic film in a region located in an intermediate portion of the stretchable region in an orthogonal direction (XD) orthogonal to a stretchable direction (ED) is different from that in each of second regions adjacent to both sides of the first region.

The present application provides a method of fabricating a stretchable electronic device. The method includes forming an elastomer polymer layer on a base substrate; selectively stiffening the elastomer polymer layer in a plurality of defined regions of the elastomer polymer layer, thereby forming a modified elastomer polymer layer having a plurality of stiffened portions respectively in a plurality of stiffened regions spaced apart by one or more elastomeric portions in one or more elastomeric regions, the plurality of stiffened portions having a Young's modulus greater than a Young's modulus of the one or more elastomeric portions; and forming a plurality of electronic devices respectively in the plurality of stiffened regions, each of the plurality of electronic devices formed on a side of one of the plurality of stiffened portions distal to the base substrate.

A polymer-metal sandwich structure includes a first layer made of a polymer and having a first bonding surface, a second layer made of a metal and having a second bonding surface, and a third layer sandwiched between and in contact with the first and second bonding surfaces. The first layer contains or is capable of liberating anions of a first ion type at the first bonding surface, the second layer contains or is capable of liberating cations of a second ion type at the second bonding surface, and the third layer is made of a flame retardant formed of anions of the first ion type and cations of the second ion type. A method of manufacturing the polymer-metal sandwich structure is also provided.

A laminated metal sheet for a metal container lid includes a polyester resin layer formed on a metal sheet. The polyester resin layer is composed of an A and a B layer, wherein the melting point of the A layer is lower than the melting point of the B layer by 20° C. or more, the A layer includes a molten layer where the value of the ratio of a peak intensity I.sub.0° to a peak intensity I.sub.90° is 1.5 or less, the B layer includes an orientation layer where the value of the ratio of the peak intensity I.sub.0° to the peak intensity I.sub.90° is 3.0 or more, the thickness of the A layer is within the range from 5 μm or more to less than 30 μm, and the thickness of the B layer is within the range from 0.5 μm or more to less than 6.0 μm.

The invention relates to the use of a low Tg compatible resin as an adhesive layer for the welding of a thermoplastic composite structure to a thermoplastic or thermoset structure. The invention is especially good for the welding of large parts, such as wind turbine halves and spar caps. A useful thermoplastic composite is one formed by the infusion and curing of long fibers by a reactive acrylic liquid resin system, such as ELIUM® resin systems from Arkema.

Disclosed aspects relate to a structure which includes shape memory materials having transition triggers to transition the shape memory materials between initial states and transitioned states. A first physical shape of the structure exists when the first shape memory material has the first initial state and the second shape memory material has the second initial state. A second physical shape of the structure exists when the first shape memory material has the first transitioned state and the second shape memory material has the second initial state. A third physical shape of the structure exists when the first shape memory material has the first transitioned state and the second shape memory material has the second transitioned state. The physical shapes of the structure are reversible in nature. In embodiments, the shape memory materials are bonded to a flexible substrate or are clad together.

A process for preparing a printed rigid plastic substrate is described, the process comprising: providing a rigid plastic substrate comprising a primer on a surface of the rigid plastic substrate, the primer comprising a primer resin; printing a liquid electrophotographic ink composition comprising a thermoplastic resin onto the primer on the surface of the rigid plastic substrate; depositing a cross-linking composition comprising a cross-linker onto the printed electrophotographic ink composition disposed on the primer; and laminating the rigid plastic substrate with a flexible film such that the ink composition and the cross-linker are disposed between the rigid substrate and the flexible film and wherein the lamination of the rigid substrate with the flexible film causes cross-linking of the thermoplastic resin of the ink composition and of the primer resin.

A stretchable electronic device is provided. The stretchable electronic device includes a stretchable elastomer polymer base substrate; a plurality of electronic devices; and a plurality of recesses partially extending into the stretchable elastomer polymer base substrate. The stretchable elastomer polymer base substrate includes a plurality of stiffened portions respectively in a plurality of stiffened regions spaced apart by one or more elastomeric portions in one or more elastomeric regions. A respective electronic device of the plurality of electronic devices is at least partially in a respective recess of the plurality of recesses, and is in a respective stiffened region of the plurality of stiffened regions. The respective electronic device in the respective recess is stacked on a respective stiffened portion of the plurality of stiffened portions.

Proposed are an eco-friendly automotive interior part, a method of manufacturing the same, and a method of designing the same automotive interior part. The automotive interior part can not only optimally correct physical properties thereof using manufacturing and design methods, but also have eco-friendliness by significantly reducing harmfulness to the human body due to the minimized use of chemicals, while realizing natural wrinkles resembling those of natural leather.