PRODUCTION OF PARTICULATE FLAME-RETARDANT CELLULAR POLYSTYRENE MATERIAL CONTAINING RECOVERED CELLULAR POLYSTYRENE MATERIAL

摘要

The prodn. of fire-proofed, regenerate-contg. polystyrene (PS) particle foam (I) comprises coating pulverised recycled PS foam with fire retardant(s) (II) and bonding together with freshly made, pre-expanded PS particles (III) to form moulded prods. Also claimed are : (i) PS particle foam (I) made by this process; (ii) mouldings made from (I).