Patent ID: 8450382

Claim:
A blend of recycled thermoplastic resins, comprising: about 88 to about 99 parts by weight of polypropylene; up to 7 parts by weight of polyethylene; and about 1 to about 5 parts by weight of residual additives including two or more additives selected from the group consisting of antioxidants, heat stabilizers, UV stabilizers, flame retardants, antistatics, blowing agents, impact modifiers, compatibilizers, fillers, fiber reinforcements, fluorescent whiteners, and lubricants; wherein the parts of the blend add up to 100, the blend is recovered, at least in part, from waste plastic material derived from one or more post-consumer sources selected from office automation equipment, white goods, consumer electronics, automotive shredder residue, building waste and post industrial molding and extrusion scrap, the blend has a lower melting point at between about 120° C. and about 130° C. and an upper melting point at between about 160° C. and about 166° C., and the blend has a tensile stress at yield of about 15 to about 30 MPa, as determined by ASTM D 638.