"x reinforced with fibers and optionally including an inorganic mineral filler. the molded sheets may be substituted for conventional paper and paperboard products.US6030673 *8 Feb 199929 Feb 2000E. Khashoggi Industries, LlcStarch-bound cellular matrix formed by gelatinizing a starch based binder with water and hardening by evaporating water to form inner foam and outer skin and coating with specif" . . . .