A method includes providing a first laminate and a second laminate. The first laminate includes a first conductor layer, a first insulating layer containing polyimide, and a second conductor layer. The second laminate includes a second insulating layer containing polyimide and a third conductor layer. The method further includes: heating each of the first laminate and the second laminate under a condition including a heating temperature equal to or higher than 100° C. and a heating duration equal to or longer than half an hour; and stacking, after heating, the first laminate and the second laminate one on top of the other with a third insulating layer interposed between the second conductor layer and the second insulating layer.

The invention comprises a fracture film for sealing a peelable membrane to a container comprising a first layer of high density polyethelene, a second layer of polybutene-1/ethylene-vinyl acetate, wherein the second layer is bonded to the first layer, and a third layer of ethylene-acrylic acid, wherein the third layer is bonded to the second layer.

Provided are a flexible window film and a display apparatus comprising same, the flexible window film having a substrate layer, a buffer layer and a hard coating layer that are sequentially layered, wherein the buffer layer comprises, in a thickness direction, a first area in which the amount of an amide group gradually increases from the interface between the hard coating layer and the buffer layer, and a second area in which the amount of an amide group gradually decreases from the interface between the substrate layer and the buffer layer.

Provided are a flexible window film and a display apparatus comprising same, the flexible window film having a substrate layer, a buffer layer and a hard coating layer that are sequentially layered, wherein the buffer layer comprises, in a thickness direction, a first area in which the amount of an amide group gradually increases from the interface between the hard coating layer and the buffer layer, and a second area in which the amount of an amide group gradually decreases from the interface between the substrate layer and the buffer layer.

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 composite ballistic resistant article includes one or more layers of synthetic aromatic polyamide polymer based fabric, one or more graphene layers, one or more polyethylene layers, and the titanium plate formed a single multi-curve ballistic article bound together by a graphene infused resin.

A composite ballistic resistant article includes one or more layers of synthetic aromatic polyamide polymer based fabric, one or more graphene layers, one or more polyethylene layers, and the titanium plate formed a single multi-curve ballistic article bound together by a graphene infused resin.

The vehicle headliner includes a base layer, a skin layer disposed on one side of the base layer, and an infrared reflecting layer and a protection layer, in this order, disposed on the other side of the base layer. The base layer contains thermoplastic resin and fiber. The protection layer is a non-stretched resin layer containing a thermoplastic resin having a melting point of 200° C. or more.

The vehicle headliner includes a base layer, a skin layer disposed on one side of the base layer, and an infrared reflecting layer and a protection layer, in this order, disposed on the other side of the base layer. The base layer contains thermoplastic resin and fiber. The protection layer is a non-stretched resin layer containing a thermoplastic resin having a melting point of 200° C. or more.

A composite material comprising a plastic layer; and a steel sheet laminated on one side or both sides of the plastic layer, and having a structure in which plastic particles are introduced onto the surface of the side where the plastic layer is laminated with the steel sheet and a method for producing the same are provided, wherein the composite material is capable of being used as automotive parts or structures, and the like.