Polymer coated paperboard container and method

A system for applying a coating to a plurality of cylindrical paperboard containers, comprising:

• a nozzle having a spray zone;
• a gas source that provides heated compressed air to a first inlet of the nozzle;
• a polymer source that provides amorphous polypropylene in a liquid state to a second inlet of the nozzle;
• a first valve within the nozzle, the first valve configured to move between a first open position and a first closed position so as to permit or prevent flow of the heated compressed air and the amorphous polypropylene through an outlet of the nozzle;
• a second valve within the nozzle proximate the second inlet, the second valve configured to move between a second open position and a second closed position so as to permit or prevent flow of the amorphous polypropylene to the first valve;
• a conveying system structured and arranged to sequentially convey the plurality of cylindrical paperboard containers through the spray zone;
• and
• an electronic controller configured to selectively control the first valve by moving the first valve between the first open position and the first closed position, the electronic controller configured to selectively control the first valve with an actuator to permit flow through the nozzle to spray the heated compressed air and the amorphous polypropylene onto one of the plurality of cylindrical paperboard containers when the conveying system positions the one of the plurality of cylindrical paperboard containers in the spray zone and to prevent flow through the nozzle when a gap between adjacent ones of the plurality of cylindrical paperboard containers is in the spray zone.