Production manner of the composite material and the said composite material which possess high index of refraction and the optical active material which includes the said composite material

摘要

PCT No. PCT/FR94/00875 Sec. 371 Date Mar. 22, 1996 Sec. 102(e) Date Mar. 22, 1996 PCT Filed Jul. 13, 1994 PCT Pub. No. WO95/02835 PCT Pub. Date Jan. 26, 1995The invention relates to a composite material having a high refractive index, its production process, as well as optically active materials such as antireflection materials and reflecting materials manufactured from the composite material. This composition material with a high refractive index is characterized in that it comprises SiO2 or metal oxide colloids (1), coated in a polyvinyl material (3), soluble in a water-containing alcoholic solvent.