Low Refractive Coatings

August 10, 2005

Low Refractive Coatings
● Patent No. Europe 1 188 716 A
Catalysts and Chemicals
Industries Company Ltd. has
received a patent for strong coatings
with a low refractive index, good
adhesion to glass and plastics and
good anti-reflection properties. These
coatings are comprised of a matrix
containing solutions of fine particles,
containing porous composite oxide of
silica and another inorganic oxide,
coated with porous silica-based inorganic
oxide layer of a specified thickness,
containing an organic group
directly bonded to silicon and preferably
with a second silica coating.
Preparation, application and coated
substrates are claimed.