A multilayer film includes a first skin layer, a second skin layer, and a core layer. The core layer includes at least two lanes of material. Each of the lanes of material of the core layer contacts each of the first skin layer and the second skin layer.

The present disclosure provides an impregnation device for a fiber prepreg, which includes a film layer separation assembly, a hot pressing element, and a thermal barrier element. The hot pressing element is disposed beneath the film layer separation assembly. The thermal barrier element is disposed between the film layer separation assembly and the hot pressing element. The present disclosure also provides an impregnation method for a fiber prepreg.

The present invention provides high-density polyethylene (HDPE)/thermoplastic polyurethane (TPU) multilayered sheet, dunnage tray including HDPE/TPU multilayered sheet, methods of producing the same, and methods of recycling the same. The HDPE/TPU multilayered sheets described herein include functionalized HDPE. The methods described herein includes including co-extruding HDPE, functionalized HDPE and TPU, and optionally thermoforming the HDPE/TPU multilayered sheet. The HDPE/TPU multilayered sheets described herein have enhanced adhesion and peeling properties, as well as cold and impact resistance.

A multilayer film includes a first skin layer, a second skin layer, and a core layer. The core layer includes at least two lanes of material. Each of the lanes of material of the core layer contacts each of the first skin layer and the second skin layer.

According to the present invention, there can be provided a polycarbonate resin prepreg, comprising a polycarbonate resin (A) and a continuous carbon fiber reinforced material (B), wherein the prepreg comprises a polyalkylene glycol (C) in an amount of 1% to 30% by mass with respect to the mass of the polycarbonate resin (A). In the present invention, an aspect, in which the polycarbonate resin prepreg comprises the continuous carbon fiber reinforced material (B) in an amount of 20% to 80% by volume, and the polycarbonate resin (A) and the polyalkylene glycol (C) in a total amount of 80% to 20% by volume, is preferable.