SYNTHETIC HOLLOW MICROSPHERES

摘要

This invention relates to a method of forming a synthetic hollow microsphere comprising the steps of preparing an agglomerate precursor, said agglomerate precursor including a primary component and a blowing agent; and firing the precursor at a predetermined temperature profile sufficient to seal the surface of the precursor and activate the blowing agent thereby forming a synthetic hollow microsphere, wherein the primary component comprises at lea st one aluminosilicate material. Synthetic hollow microspheres made by this method and uses thereof are also described.