Patent ID: 6916770

Claim:
A color concentrate composition for polymeric materials comprising: at least one pigment in an amount from about 1 part to about 75 ports per 100 total parts by weight of said composition; at least one blowing agent in an amount from about 1 part to about 75 parts per 100 total parts by weight of said composition; a wax binder component in an amount greater than about 10 parts per 100 total parts by weight of said composition; and optionally, at least one functional additive component in an amount from 0 to about 98 parts per 100 total parts by weight of said composition, said composition being substantially free of a polymeric resin material, said composition having been processed at a temperature below an activation temperature of the at least one blowing agent in order to prevent premature degradation, and said composition being in a solid particulate form.