MAGNESIUM HYDROXIDE HAVING STACKED LAYER, CRYSTALLINE STRUCTURE AND PROCESS THEREFOR

摘要

Magnesium hydroxide having a particulate, crystalline structure with a thickness of 30 to 200 Angstroms, and a median particle size of up to about 1 micron prepared by a process in which less than or greater than an equivalent amount of alkaline material is reacted with a magnesium salt in a concentrated aqueous mixture thereof. The magnesium hydroxide is especially useful in providing flame retardancy in admixture with thermoplastic resins.