Patent ID: 7691459
Filing Date: 2010-04-06
Classification: C09K,G02B,Y10T

Abstract:
1. An optical, antireflection film comprising: a transparent support; and at least one optical functional layer comprising a low refractive index layer, wherein the low refractive index layer comprises a copolymer comprising a repeating unit derived from a fluorine-containing vinyl monomer and a repeating unit having a (meth)acryloyl group or a hydroxyl group in a side chain, wherein at least one of said at least one optical functional layer is formed by using an inorganic fine particle-containing composition comprising: a silylation-treated inorganic oxide fine particle, which comprises 1.4 or more silyl groups per a surface area of 1 nm wherein R Y represents a single bond, an ester group, an amido group, an ether group or a urea group; L represents a divalent linking chain; n represents 0 or 1, and when a plurality of X's are present, the plurality of X's may be the same or different; R X represents a hydroxyl group or a hydrolyzable group, wherein the transparent support is a transparent film obtained from an inorganic fine particle-containing composition comprising a silylation-treated inorganic oxide fine particle, which comprises 1.4 or more silyl groups per a surface area of 1 nm