COMPOSITE D'OXYDE DE METAL ALCALINO-TERREUX ET DE POLYMERE CREUX

摘要

The invention provides a plurality of polymeric particles embedded with alkaline-earth metal oxide. The gas-filled polymeric microelements have a shell and a density of 5 g/liter to 200 g/liter. The shell has an outer surface and a diameter of 5μm to 200μm with the outer surface of the shell of the gas-filled polymeric particles having alkaline-earth metal oxide-containing particles embedded in the polymer. The alkaline-earth metal oxide-containing particles have an average particle size of 0.01 to 3μm distributed within each of the polymeric microelements to coat less than 50 percent of the outer surface of the polymeric microelements.