Patent for Manufacturing

October 18, 2007

Patent No. U.S.7,192,996 B2
BHP Steel has obtained a patent for a method of manufacturing a polymer-based solid paint which includes the steps of providing a component of the solid paint as a liquid in a heated mixing container that has a base and sides and includes a stirrer for stirring the contents of the container; controlling heating and stirring of the contents of the container and progressively adding other components of the solid paint as solids to the container, the liquid acting as a heat transfer medium that transfers heat from the heated container and from the stirrer to the solids and heats the mix to a temperature above the glass transition temperature of the solid paint and forms a melt that is a uniform liquid; and discharging the melt from the container and allowing the melt to cool and form the solid paint.