Semi-worked thermoset polymer resins; semi-processed synthetic thermoset polymer resins in the form of powders, pellets, rods, sheets, pre-formed shapes and custom shapes; semi-processed thermoplastic polymer resins for use in manufacture; polymer films for use in manufacture; resins in extruded form for general industrial use; semi-worked synthetic plastic as semi-finished resins in the form of powders, pellets, rods, sheets, pre-formed shapes and custom shapes