POLYBLAK
DRY SOLID PLASTIC MATERIALS IN BULK POWDER, PELLET, GRANULE, OR BEAD FORM FOR FURTHER PROCESSING BY THE PLASTICS MANUFACTURING INDUSTRY IN MOLDING OR EXTRUSION APPARATUS, PARTICULARLY DISPERSION OF BLACK COLORANT IN POLYMER HAVING A REINFORCING FUNCTION
Expired · March 20, 1978 · 73162973 ·