HOLLOW PARTICLES AND METHOD FOR PRODUCING SAME, PORE-MAKING MATERIAL, PARTICLES FOR COSMETICS, AND WEIGHT-REDUCING MATERIAL

摘要

One embodiment of this invention provides hollow particles and a method for producing same, a pore-making material, particles for cosmetics and a weight-reducing material, the hollow particles having a wall containing polyurethane or polyurea, the interior of the hollow particles having a porous structure, and a plurality of opening spaces in the outermost part of the porous structure being closed off by the wall.