Patent ID: 8105681

Claim:
A composition comprising: (a) an organosilica sol; and (b1) a siloxane graft-type polymer obtained by compositing fluorine resin or acrylic resin with siloxane and/or (b2) a cold glass coating agent; wherein a mixing ratio of a composition of said organosilica sol and said siloxane graft-type polymer is in a range of 4 to 18 parts by weight of organosilica sol per one part by weight of siloxane graft-type polymer; and wherein a mixing ratio of a composition of said organosilica sol and said cold glass coating agent is in a range of 4 to 18 parts by weight of organosilica sol per one part by weight of cold glass coating agent; and wherein said composition has a refractive index of 1.5 or less when cured.