Abstract: Compositions and methods are provided relating to electrothermic nanomaterial compositions for heating surfaces. Heating applications includes for rotomolding. The nanomaterial may include silver nanowires, silver nanoflakes, carbon nanotubes, carbon nanofibers, nano-graphite, and carbon black. The electrothermic composition may also include binders and solvents. Treatment of the electrothermic composition with coupling agents, silicone resin intermediates and binder resins are provided. Methods for producing electrical heating panels and heat generating film sheets are provided. Methods for manufacturing panels, film sheets, preparing surfaces with electrothermic compositions using am multi-layer process are also provided.

Abstract: A hopper for transferring granular materials has a unique composite shape which enables accommodation of the safety guard of an auger and access about a back of the hopper. A wedge-shaped base permits pivoting of the hopper to adjust to the angle of the auger used to remove the material, minimizing the angle of the auger and maximizing extraction of material from the hopper.