Solid state shear pulverization of multicomponent polymeric waste

A method of preparing polymeric material comprising the steps of:

• (a) providing a mixture of chemically distinct polymeric materials in the solid state consisting essentially of film waste;
• (b) effecting a chemical change to said mixture by application of mechanical energy through solid state shear pulverization in the presence of cooling to maintain the polymeric materials in the mixture in the solid state during said change and thereby compatibilizing the mixture to form homogenous material upon effecting said chemical change;
• and
• (c) discharging the resulting compatibilized polymeric material, wherein articles molded from said compatibilized polymeric materials have a notched izod impact strength of at least 5.0 ft. lb./in.

A method of preparing polymeric material comprising the steps of:

• (a) providing a mixture of at least one polymeric material and cellulosic material in the solid state;
• (b) effecting compatibilization of said mixture by application of mechanical energy through solid state shear pulverization in the presence of cooling to maintain the materials in the mixture in the solid state during said change, thereby compatibilizing the mixture to form homogenous material;
• and
• (c) discharging the resulting compatibilized polymeric material.