Method of forming and extruding an additive-coated resin composition

A method for manufacturing an extruded plastic product consisting essentially of:

• (a) uniformly distributing additive agent on polymeric resin to form an extrudable thermoplastic resin composition in particulate form by (i) contacting a polymeric resin in particulate form with a thermoplastic adhesive binder to form a coating of the binder directly adhered onto the surfaces of the resin particles, followed by (ii) contacting the binder-coated resin particles with an additive agent to form a uniform coating of the additive agent directly adhered onto the binder coating of the binder-coated resin particles, and (iii) wherein the binder is together with a solvent in a form selected from the group consisting of a solution, an emulsion, a dispersion, and combinations thereof;
• (b) drying the resultant from step (a) to substantially remove the solvent;
• and
• (c) extruding the resultant from step (b) of dried resin particles having a coating of additive agent directly adhered onto the coating of binder that is directly adhered to the surfaces of the resin particles to form an extruded plastic product.