Process for manufacturing thermoplastic materials containing inorganic particulates

摘要

Processes are disclosed for treating an inorganic particulate to provide improved dispersibility in a thermoplastic, for example, titanium dioxide as an opacifier or colorant in a polyolefin concentrate, and for producing said pigmented thermoplastic, wherein a surface coating is applied to the particulate which comprises at least one N-acyl amino acid or N-acyl amino acid salt.